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Publication numberCN1957118 A
Publication typeApplication
Application numberCN 200580016397
PCT numberPCT/US2005/015835
Publication date2 May 2007
Filing date6 May 2005
Priority date21 May 2004
Also published asCN1957118B, EP1753898A1, US7476352, US8481157, US20050258562, US20070154708, WO2005116308A1
Publication number200580016397.2, CN 1957118 A, CN 1957118A, CN 200580016397, CN-A-1957118, CN1957118 A, CN1957118A, CN200580016397, CN200580016397.2, PCT/2005/15835, PCT/US/2005/015835, PCT/US/2005/15835, PCT/US/5/015835, PCT/US/5/15835, PCT/US2005/015835, PCT/US2005/15835, PCT/US2005015835, PCT/US200515835, PCT/US5/015835, PCT/US5/15835, PCT/US5015835, PCT/US515835
Inventors布鲁斯B威尔逊, 罗格J斯图莫, 斯坦利C埃里克森, 威廉J科佩基, 詹姆斯C布雷斯特
Applicant3M创新有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Lubricated flow fiber extrusion
CN 1957118 A
Abstract  translated from Chinese
本发明公开了用于挤出聚合纤维的方法和系统。 The present invention discloses a method and system for extruding polymeric fibers. 挤出方法优选包括独立于聚合物熔融流将润滑剂输送到挤出模的各孔,使得润滑剂在通过模孔时优选封装聚合物熔融流。 Extrusion method preferably includes a polymer melt stream is independent of the lubricant to each well of the extrusion die, the lubricant is preferably encapsulated in a polymer melt stream through the die orifice.
Claims(17)  translated from Chinese
1.一种制造聚合纤维的方法,该方法包括:使聚合物熔融流通过位于冲模内的孔,其中该孔包括入口、出口和从入口延伸到出口的内表面,其中该孔是半双曲线会聚孔,以及其中聚合物熔融流在该入口进入该孔和在该出口离开该孔;将润滑剂独立于聚合物熔融流输送到该孔中,其中在该孔的入口引入润滑剂;和在聚合物熔融流离开该孔的出口后,收集包括聚合物熔融流的纤维。 1. A method of manufacturing a polymeric fiber, the method comprising: the polymer melt stream through the die orifice is located within the bore which comprises an inlet, outlet and extending from the inlet to the outlet of the inner surface, wherein the hole is a semi-hyperbolic convergence hole, and wherein the polymer melt stream enters the orifice at the entrance and at the exit of the orifice; lubricant independent of the polymer melt stream supplied to the bore, wherein the inlet aperture of the introduction of a lubricant; and a polymerization After the melt stream exits from the hole collection includes fiber polymer melt stream.
2.如权利要求1所述的方法,其中聚合物熔融流通过截面积比该孔的入口的截面积更小的开口输送到该孔的入口。 2. The method of claim 1, wherein the polymer melt stream through the cross-sectional area smaller than the cross sectional area of the inlet aperture to the inlet opening of the delivery aperture.
3.如权利要求1-2中任一项所述的方法,其中输送润滑剂包括通过绕该孔的入口形成的连续狭槽输送润滑剂。 The method according to any one of claims 1-2 claim, wherein the lubricant comprises a continuous conveyor through a slot formed around the inlet hole transporting lubricant.
4.如权利要求1-3中任一项所述的方法,其中在聚合物熔融流离开该孔的出口之后,润滑剂从聚合物熔融流蒸发,使得该纤维基本上没有润滑剂。 4. A method as claimed in any one of 1 to 3 claims, wherein after the polymer melt stream leaves the outlet orifice of the lubricant evaporated from the polymer melt stream, such that the fiber is substantially lubricant.
5.如权利要求1-3中任一项所述的方法,其中润滑剂包括两种或更多种被输送到该孔的入口的成分,以及其中在聚合物熔融流离开该孔的出口之后,一种或多种成分从聚合物熔融流蒸发,一种或多种成分保留在该纤维中。 5. After the method as claimed in any one of claims 1-3, wherein the lubricant comprises two or is fed to the inlet of the hole more components, and wherein the polymer melt stream leaves the outlet aperture , one or more components from the polymer melt stream evaporation, one or more components remain in the fiber.
6.如权利要求1-5中任一项所述的方法,其中聚合物熔融流包括一种或多种聚合物,以及其中所有的一种或多种聚合物在对所述一种或多种聚合物所规定的条件下测量的熔流指数都为10或更小。 6. The method according to any one of claims 1 to 5 claim, wherein the polymer melt stream comprises one or more polymers, and wherein all of the one or more polymers in one or more of the melt flow index of the polymer under the conditions specified species measured are 10 or less.
7.如权利要求1-5中任一项所述的方法,其中聚合物熔融流基本上由在对一种聚合物规定的条件下测量的熔流指数为10或更小的所述一种聚合物组成。 7. The method according to any one of claims 1-5, wherein the polymer melt stream consists essentially of a melt flow index polymer under the conditions of a predetermined measurement is 10 or less of the kind polymer.
8.如权利要求1-7中任一项所述的方法,其中,当孔包括截面积为0.5mm2的出口并且聚合物熔融流在30兆帕或更小的压力下被输送到该孔的入口时,聚合物熔融流以10克/分钟或更大的质量流速通过该孔。 8. The method according to any one of claims 1-7, wherein, when the cross-sectional area of 0.5mm2 hole includes an outlet and the polymer melt stream at a pressure of 30 MPa or less is supplied to the hole When the inlet, the polymer melt stream to 10 grams / minute or more mass flow rate through the aperture.
9.如权利要求1-8中任一项所述的方法,其中该冲模包括多个孔,以及其中该方法还包括独立地将润滑剂输送到多个孔的每个孔中。 1-8 9. A method according to any one of the preceding claims, wherein the die comprises a plurality of holes, and wherein the method further comprises independently to the lubricant supply holes in each of the plurality of apertures.
10.如权利要求9所述的方法,还包括平衡润滑剂在多个孔间的流动。 10. The method of claim 9, further comprising balancing flow of the lubricant between the plurality of apertures.
11.如权利要求1-10中任一项所述的方法,其中收集纤维包括拉扯纤维,其中该纤维在拉扯过程中伸长。 11. The method according to any one of claims 1 to 10 claim, wherein the fiber comprises pulling the fiber collecting, wherein the fiber elongation in the pulling process.
12.如权利要求1-11中任一项所述的方法,其中进入该孔的入口的聚合物熔融流的平均温度比聚合物熔融流的熔融加工温度高10℃或更小。 1-11 12. The method according to any one of the preceding claims, wherein the average temperature of the melt processing temperature entering the inlet aperture ratio of the polymer melt stream of the polymer melt stream 10 ℃ or less high.
13.如权利要求1-12中任一项所述的方法,其中在聚合物熔融流离开该孔的出口之前,聚合物熔融流的平均温度是在聚合物熔融流的熔融加工温度或比其低。 13. The method according to any one of claims 1-12 claim, wherein the polymer melt stream prior to leaving the outlet of the orifice, the average temperature of the polymer melt stream is than the melt processing temperature of the polymer melt stream, or its low.
14.如权利要求1-13中任一项所述的方法,其中聚合物熔融流包括一种或多种无定形聚合物。 14. The method according to any one of claims 1-13 claim, wherein the polymer melt stream comprises one or more amorphous polymers.
15.如权利要求1-13中任一项所述的方法,其中聚合物熔融流基本上由一种或多种无定形聚合物组成。 15. The method according to any one of claims 1-13 claim, wherein the polymer melt stream consists essentially of one or more amorphous polymers.
16.如权利要求1-13中任一项所述的方法,其中聚合物熔融流包括多相聚合物熔融流。 16. The method according to any one of claims 1-13 claim, wherein the polymer melt stream comprises a multiphase polymer melt stream.
17.如权利要求1-13中任一项所述的方法,其中聚合物熔融流基本上由多相聚合物熔融流组成。 17. The method according to any one of claims 1-13 claim, wherein the polymer melt stream consists essentially of a multiphase polymer melt stream composition.
Description  translated from Chinese
润滑的流动纤维挤出 Lubricated fiber extrusion flow

技术领域 Technical Field

本发明涉及聚合物纤维挤出加工和装置的领域。 The present invention relates to a polymer fiber extrusion process and apparatus in the field.

常规纤维形成方法和装置通常涉及到通过孔挤出聚合材料。 Conventional fiber forming methods and apparatus typically involves the extrusion of polymeric material through the aperture. 通常纤维挤出方法的速率、压力和温度代表了在经济需求和聚合材料的物理性能之间的权衡。 Typically the rate of fiber extrusion methods, pressure and temperature represents a trade-off between economic needs and physical properties of polymeric material. 例如,聚合材料的分子量与熔融粘度和聚合材料性能直接相联系。 For example, the molecular weight and melt viscosity and properties of the polymeric material directly linked polymeric materials. 不幸地是,聚合材料性能的改进常规上与分子量增大和相应地相对较高的熔融粘度有关。 Unfortunately, improvements in polymeric material performance are conventionally increased molecular weight and correspondingly about the relatively high melt viscosity. 熔融粘度越高,通常可行的方法越慢、经济性越差。 The higher the melt viscosity, the slower the generally feasible method, economy worse.

为解决较高分子量聚合物的高熔融粘度问题,常规方法可能依赖于相对较高温度加工,来降低聚合材料的熔融粘度。 To solve the problem of high melt viscosity of high molecular weight polymers, conventional methods may rely on relatively high temperature processing, to reduce the melt viscosity of the polymeric material. 然而,通常因在高温下聚合材料降解的原因限制了加工温度。 Generally, however, for reasons polymeric material degradation at elevated temperatures limits the working temperature. 与加工温度增大相结合的是也可以增大加工压力,即挤出聚合物时的压力,从而提高加工速度。 Combined with increased processing temperatures can also increase the processing pressure, i.e., the polymer extrusion pressure, thereby increasing processing speed. 然而,用于挤出纤维的设备可能会限制加工压力。 However, a device for extruded fibers may limit the working pressure. 因此,常规方法中的加工速度通常受上述各种因素限制。 Thus, the processing speed of the conventional method described above is generally affected by various factors limit.

鉴于上述问题,用于纤维制造中挤出熔融聚合物的常规策略是降低聚合材料的分子量,从而达到经济是可行的加工速率。 In view of the above problems, the fibers used in the manufacture of conventional molten polymer extruded strategy is to reduce the molecular weight of the polymeric material, so as to achieve economically viable processing rates. 分子量降低会相应地损害挤出的聚合纤维的材料性能。 Correspondingly lower molecular weight polymeric fiber extrusion damage the material properties.

为至少部分地解决常规挤出的纤维的材料性能的损害,通过使聚合材料在纤维中取向可以提高纤维强度。 At least partially solve the material properties of conventional extruded fibers of damage, by making the polymeric material in the fiber orientation of the fiber strength can be improved. 在纤维退出挤出模后,通过拉扯或拉伸使其取向。 After the fiber exits the extrusion die, by pulling or stretching it orientation. 因此,纤维用的聚合材料在退出冲模的半熔融态时通常必须具有承载足够拉伸应力的能力(或者仅当纤维被拉扯时才破裂)。 Thus, the fiber used in the polymeric material typically must have sufficient tensile stress bearing capability (or only when the fibers are pulled rupture) when exiting the die semi-molten state. 这种性能通常在半结晶聚合物中可以得到,例如,聚乙烯,聚丙烯,聚酯,和聚酰胺。 This performance can usually be obtained in semi-crystalline polymers, e.g., polyethylene, polypropylene, polyesters, and polyamides. 因此,常规纤维挤出方法仅能针对有限数量的聚合材料进行。 Thus, conventional fiber extrusion processes only for a limited number of polymeric material.

发明概述本发明提供用于挤出聚合纤维的方法和系统。 SUMMARY The present invention provides a method and system for extruding polymeric fibers. 挤出方法优选包括独立于聚合物熔融流将润滑剂输送到挤出模的各孔,使得润滑剂在通过模孔时优选封装聚合物熔融流。 Extrusion method preferably includes a polymer melt stream is independent of the lubricant to each well of the extrusion die, the lubricant is preferably encapsulated in a polymer melt stream through the die orifice. 使用在聚合纤维挤出方法中独立于聚合物熔融流输送的润滑剂能够提供许多潜在的优点。 Use the polymeric fiber extrusion process is independent of the polymer melt stream lubricant supply can provide many potential advantages.

例如,使用独立输送的润滑剂能够在没有拉扯的情况下提供取向的聚合纤维,即在一些实施方案中,在纤维退出冲模后不必须拉扯或拉伸就能得到取向聚合纤维。 For example, using a separate lubricant delivery can provide oriented polymeric fibers in the absence of pulling, i.e., in some embodiments, is not necessary to pull or stretch the fiber after exiting the die will be able to obtain an oriented polymeric fibers. 如果在挤出后没有拉扯聚合纤维,那么它们不需要在退出冲模后的半熔融态表现出承载足够拉伸应力的能力。 If you do not pull the polymer fibers after extrusion, so they do not die in a semi-molten state after exit exhibit sufficient capacity to support the tensile stress. 相反,在一些情况下,本发明的润滑挤出方法能够在聚合材料通过冲模时使其取向,使得在聚合材料退出冲模之前优选被取向。 In contrast, in some cases, lubricating extrusion process so that the orientation of the present invention can be a polymeric material through a die at the time, such that the polymeric material prior to exiting the die is preferably oriented.

降低或消除拉扯或拉伸以提供取向的一个可能的优点在于,挤出聚合纤维用的候选聚合材料能够被明显拓宽到包括不能以其他方式用于挤出的纤维的聚合材料。 Reduce or eliminate the pulling or stretching to provide orientation of a possible advantage is that, with the extruded polymeric fibers candidate polymeric material can be significantly broadened to include not otherwise used in the polymeric material extruded fibers. 通过所提出的方法异相聚合物也可被挤压成取向纤维。 By the proposed method of phase polymer may also be extruded into fibers oriented. 复合纤维结构如′壳/芯′或′海中岛′或′馅饼′或′中空馅饼′也适用于此方法。 Composite fiber structures such as 'shell / core' or 'sea island' or 'pie' or 'hollow pie' is also applicable to this method.

本发明方法的可能的优点可以包括例如具有在相对低压下同时挤出多个聚合纤维的能力。 Possible advantages of the method of the present invention may include, for example having a relatively low pressure in the ability to simultaneously extruding a plurality of polymeric fibers. 相对低压能够降低设备成本和加工成本。 Relatively low pressure can reduce equipment costs and processing costs.

本发明中,术语“纤维”(及其变形)指相对于宽度具有基本上连续长度的纤细的线状结构或细丝,例如,长度至少是宽度的1000倍。 The present invention, the term "fibers" (and variations thereof) means having a width substantially continuous with respect to the length of the thin filaments or linear structure, e.g., a length of at least 1000 times the width. 本发明纤维的宽度优选被限制到最大尺寸为5毫米或更小,优选2毫米或更小,再更优选1毫米或更小。 Width of the fibers of the present invention preferably is limited to a maximum size of 5 mm or less, preferably 2 mm or less, still more preferably 1 mm or less.

本发明的纤维可以是单组分纤维;双组分或组合纤维(为方便起见,术语“双组分”经常用来指由两种组分构成的纤维和由超过两种组分构成的纤维);和双组分纤维的纤维部分,即占据部分双组分纤维的横截面的一部分并沿其长度延伸的部分。 The fibers of the present invention may be monocomponent fibers; bicomponent fibers or a combination (for convenience, the term "bicomponent" is often used to refer to fibers made from two components consisting of the fibers and consists of more than two components consisting of ); bicomponent fibers and fiber section, i.e. occupies a portion of the cross-section of the bicomponent fiber portion and extending along a portion of its length.

本发明一些实施方案的另一种可能的优点可以是具有挤出低熔流指数(MFI)聚合物的能力。 Another potential advantage of some embodiments of the present invention can be extruded with a capacity lower melt flow index (MFI) of the polymer. 在常规聚合纤维挤出方法中,挤出的聚合物的MFI约35或更高。 In conventional polymeric fiber extrusion processes, the extruded polymer MFI of approximately 35 or higher. 使用本发明的方法,使用MFI为30或更小,在一些情况下为10或更小,在其他情况下为1或更小,和在其他情况下为0.1或更小的聚合物,可以实现聚合纤维的挤出。 Using the method of the invention, the use of an MFI of 30 or less, and in some cases 10 or less, is 1 or less in other cases, and is 0.1 or less polymer, can be implemented in other cases extruding polymeric fibers. 在本发明之前,挤出加工这种高分子量(低MFI)聚合物形成纤维通常是通过使用溶剂来溶解聚合物、从而降低其粘度来进行。 Prior to the present invention, extrusion processing of such high molecular weight (low MFI) polymers to form fibers is usually done by using a solvent to dissolve the polymer, thereby reducing its viscosity to. 这种方法的难题在于用溶剂溶解高分子量聚合物,然后除去溶剂(包括弃去或再循环)。 Problem with this approach is that solvent dissolves the high molecular weight polymer, and then removing the solvent (including discarded or recycled). 低熔流指数聚合物的例子包括从BASF Corporation of Wyandotte,MI得到的LURANS 757(ASA,8.0MFI),从Huntsman Polymers of Houston,TX得到的P4G2Z-026(PP,1.0MFI),从PolyOne Corporation of Avon Lake,OH得到的FR PE 152(HDPE,0.1MFI),从ExxonMobil Chemical ofHouston,TX,得到的7960.13(HDPE,0.06MFI),从ExxonMobilChemical of Houston,TX得到的ENGAGE 8100(ULDPE,1.0MFI)。 Low melt flow index of the polymer include from BASF Corporation of Wyandotte, MI obtained LURANS 757 (ASA, 8.0MFI), from Huntsman Polymers of Houston, TX was P4G2Z-026 (PP, 1.0MFI), from PolyOne Corporation of Avon Lake, OH obtained FR PE 152 (HDPE, 0.1MFI), from ExxonMobil Chemical ofHouston, TX, resulting 7960.13 (HDPE, 0.06MFI), from ExxonMobilChemical of Houston, TX was ENGAGE 8100 (ULDPE, 1.0MFI).

本发明一些方法的另一种可能的优点包括可以实现相对较高的质量流速。 Another potential advantage of some methods of the present invention may be implemented includes a relatively high mass flow rate. 例如,使用本发明的方法,可以按10克/分钟或更高,在一些情况下100克/分钟或更高,和在其他情况下400克/分钟或更高的速率将聚合材料挤出成纤维。 For example, using the method of the present invention, it can be 10 g / min or more, in some cases, 100 g / min or more, and a rate of 400 g or higher / min polymeric material in other cases extruded fibers. 可以通过面积为0.2平方毫米(mm2)或更小的孔实现这些质量流速。 The mass flow rate can be achieved by an area of 0.2 mm2 (mm2) or smaller holes.

本发明一些方法的另一种可能的优点可以包括挤出具有在分子水平上取向的聚合纤维的能力,例如可以增强强度或提供其他有利的机械、光学等性能。 Another potential advantage of some methods of the present invention may include the ability extruded polymeric fibers having orientation at the molecular level, for example, can enhance the strength or provide other advantageous mechanical, optical and other properties. 如果聚合纤维由无定形聚合物构成,那么无定形聚合纤维的任选特征在于,包括刚性或有序的无定形聚合物相或取向的无定形聚合物相的部分(即,其中纤维内的分子链通常沿纤维轴对齐的部分,对齐程度变化)。 If the polymerization of an amorphous polymer fibers, then optionally the amorphous polymeric fibers comprising an amorphous polymer portion of rigid or ordered amorphous polymer phases or oriented phase (i.e., in which the molecules within the fibers chains are typically aligned along the fiber axis part, changes in the degree of alignment).

尽管取向的聚合纤维是已知的,但通常在纤维退出模孔时通过拉扯或抽拉纤维来实现取向。 Although oriented polymeric fibers are known, but usually in the fiber exiting the die orifice is achieved by pulling or drawing the fiber orientation. 然而,由于许多聚合物挤出后在熔融态或半熔融态没有足够的机械强度,不能在不破裂下被拉扯,因此不能被拉扯。 However, since many polymer extruded in molten or semi-molten state does not have sufficient mechanical strength can not be pulled over without breaking down, and therefore can not be pulled. 然而,本发明的方法能够避免抽拉聚合纤维来实现取向的需求,因为可以在聚合材料退出孔之前在冲模内取向。 However, the method of the present invention can avoid pulling polymeric fibers to achieve orientation requirements, as may be within the die alignment holes prior to exiting the polymeric material. 因此,可以使用不能在商业可行方法中常规地被挤出和抽拉的聚合物,来挤出取向的纤维。 Therefore, you can use not routinely be extruded and pull the polymer to extrusion in a commercially viable process oriented fibers.

在本发明的一些方法中,可以优选的是控制润滑剂,冲模,或润滑剂和冲模两者的温度,使聚合材料淬火,使得取向不会因冲模外的松弛损失或不会明显降低。 In some methods of the present invention, it may be preferred that the control of lubricant, the die, or both the lubricant and the die temperature, quenched polymeric material, so that the orientation will not die away, or does not significantly decrease the relaxation loss. 在一些情况下,可以至少部分地基于例如通过蒸发使聚合材料淬火的能力来选择润滑剂。 In some cases, at least in part on the ability, for example by evaporation of the polymeric material is selected lubricant quenching.

在一个方面中,本发明提供一种制造聚合纤维的方法,包括使聚合物熔融流通过冲模内的孔,其中该孔包括入口、出口和从入口延伸到出口的内表面,其中该孔是半双曲线会聚孔,以及其中聚合物熔融流在该入口进入该孔和在该出口离开该孔;将润滑剂独立于聚合物熔融流输送到该孔中,其中在该孔的入口引入润滑剂;和在聚合物熔融流离开该孔的出口后,收集包括聚合物熔融流的纤维。 In one aspect, the present invention provides a method of manufacturing a polymeric fiber comprising a polymer melt stream through the holes in the die, wherein the hole includes an inlet, outlet and extending from the inlet to the outlet of the inner surface, wherein the hole is a semi-double curve converging hole, and wherein the polymer melt stream enters the orifice at the entrance and at the exit of the orifice; lubricant independent of the polymer melt stream supplied to the bore, wherein the inlet aperture of the introduction of a lubricant; and After the polymer melt stream exits from the hole collection includes fiber polymer melt stream.

在另一种方面中,本发明提供一种制造聚合纤维的方法,包括使聚合物熔融流通过冲模的孔,其中该孔具有入口、出口和从入口延伸到出口的内表面,其中该孔是半双曲线会聚孔,其中聚合物熔融流在该入口进入该孔和在该出口离开该孔,其中聚合物熔融流包括本体聚合物,其中本体聚合物是聚合物熔融流的主体,以及其中本体聚合物基本上由在ASTM D1238的对聚合物规定的条件下测量的熔流指数为1或更小的聚合物构成;将润滑剂独立于聚合物熔融流输送到该孔中;和在聚合物熔融流离开该孔的出口后,收集包括本体聚合物的纤维。 In another aspect, the present invention provides a method of manufacturing a polymeric fiber comprising a polymer melt stream through a die aperture, wherein the aperture having an inlet, outlet and extending from the inner surface of the inlet to the outlet, where the hole is semi-hyperbolic converging orifice, wherein the polymer melt stream enters the orifice at the entrance and at the exit of the orifice, wherein the polymer melt stream includes a bulk polymer, wherein the polymer is a main bulk of the polymer melt stream, and wherein the bulk polymerization consisting essentially of a melt flow index of the polymer under the conditions specified in ASTM D1238 measurement of a polymer or less; lubricant independent of the polymer melt stream supplied to the bore; and in the polymer melt After the stream exits from the hole collection includes bulk polymer fibers.

下面结合本发明的说明性实施方案描述本发明方法,系统,和制品的各实施方案的这些和其他特征以及优点。 Below with an illustrative embodiment of the present invention are described in the methods of the invention, the system, and these and other features and advantages of the various embodiments of the article.

附图简要说明图1是表明本发明方法的方法窗口的示意图。 BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view illustrating the method of the present invention is a method of the window.

图2是本发明所用的一个示例性冲模的一部分的放大截面图。 Figure 2 is an enlarged cross-sectional view of a portion of the present invention is used in an exemplary die.

图3是图2冲模的孔的放大图。 FIG 2 FIG 3 is an enlarged view of the die aperture.

图4是本发明所用的一个示例性挤出冲模板的一部分的俯视图。 Figure 4 is a plan view of a portion of the present invention is used in an example of the extrusion die plate.

图5是包括本发明冲模的一个系统的示意图。 Figure 5 is a system of the present invention comprises a die of FIG.

图6是本发明所用的另一种挤出装置的放大截面图。 Figure 6 is an enlarged sectional view of another extrusion apparatus of the present invention is used.

图7是本发明所用的另一种示例性模孔和润滑通道的放大俯视图。 Figure 7 is another exemplary die orifice and lubrication passages enlarged plan view of the present invention is used.

图8是根据本发明方法退出模孔的一种示例性聚合纤维的放大截面图。 Figure 8 is an enlarged sectional view of the exit die orifice according to the method of the present invention is an exemplary polymeric fibers.

发明示例性实施方案详细说明在下面的本发明示例性实施方案的详细说明中,参考构成本发明一部的各附图,其中阐明了实施本发明的具体实施方案。 An exemplary embodiment of the invention is described in detail in the following detailed description of exemplary embodiments of the present invention, the reference is made to one of the drawings of the present invention, which illustrates the embodiment of the present invention, the specific embodiments. 应该理解,可以利用其他实施方案,可以做出不脱离本发明范围的结构变化。 It should be understood that other embodiments can be used, structural changes may be made without departing from the scope of the present invention.

如上所述,本发明提供通过润滑流动挤出方法制造聚合纤维的方法和系统。 As described above, the present invention provides a method and system for lubricating the flow through the extrusion process of manufacturing polymeric fibers. 本发明还可以包括使用这种系统和方法制造的聚合纤维。 The present invention may also include the use of polymeric fibers and a method for manufacturing such systems.

本发明的方法优选包括从具有一个或多个孔的冲模挤出聚合物熔融流。 The method of the present invention preferably comprises extruding polymer melt flow from having one or more holes in the die. 润滑剂与聚合物熔融流独立地输送到冲模,优选使得润滑剂通过冲模时其优选包围聚合物熔融流的外表面。 Lubricants and polymer melt stream delivered independently to die, preferably the lubricant through a die which is preferably surrounded by an outer surface of the polymer melt stream. 润滑剂可以是另一种聚合物或另一种材料,例如,矿物油等。 The lubricant may be another polymer or another material, e.g., mineral oil. 可以优选的是,润滑剂的粘度基本上小于润滑的聚合物的粘度(在挤出润滑的聚合物的条件下)。 It may be preferred that the viscosity of the lubricant is substantially less than the viscosity of the lubricated polymer (under the conditions of the polymer lubricated extrusion). 下面说明一些示例性的冲模和从其挤出的纤维。 The following description of some exemplary die and extruded from the fiber.

在本发明的方法和系统中使用润滑剂的一个可能的优点是,可以使制造纤维的方法窗口相对于常规聚合物纤维挤出方法被加宽。 One possible advantage of using a lubricant in the methods and systems of the present invention, it is possible to make the manufacturing method of the window fibers relative to conventional polymer fiber extrusion method is widened. 图1是阐明这种可能的优点的无量纲图。 Figure 1 is to clarify the possible advantages of such dimensionless FIG. 聚合物熔融流的流速沿x-轴向右增大,润滑剂的流速沿y-轴向上增大。 The flow rate of the polymer melt stream along the x- axis increase to the right, increasing the velocity along y- axis of the lubricant. 虚线(最接近x-轴)和实线(虚线上方)之间的区域是聚合物熔融流的流速和润滑剂的流速可以彼此相对保持稳定态的区域的指示。 The dotted line area (closest x- axis) and the solid line (above the dashed line) between the flow rates of the polymer melt stream and the lubricant may be opposite directions to each other to maintain the steady-state region. 稳定态流动的特性优选是聚合物熔融流和润滑剂的稳定压力。 Characteristics of steady state flow pressure is preferably stable polymer melt stream and lubricants. 此外,还可以在润滑剂和/或聚合物熔融流的相对低压下优选出现稳定态流动。 Additionally, it can steady state flow preferably occurs at a relatively low pressure lubricant and / or a polymer melt stream under.

实线上方(实线距虚线的相反侧)的区域是过量润滑剂可能使聚合物熔融流通过冲模脉冲流动的区域的指示。 Solid line side (the opposite side from the solid line dotted line) of the area is in excess lubricant may cause the polymer melt stream through a die area pulsating flow indication. 在一些情况下,脉冲可能足够强,而中断聚合物熔融流的流动,打断或终止任何纤维从冲模中退出。 In some cases, the pulse may be strong enough, and interrupting the flow of the polymer melt stream, interrupt or terminate any of the fiber exit from the die.

虚线下方(即,虚线和x-轴之间)的区域是润滑剂流动停止或移动为0的条件下的指示。 Below the dotted line (that is, between the dotted line and x- axis) of the area is under the direction of lubricant flow is stopped or moving to zero conditions. 在这种情况下,聚合物熔融流的流动不再被润滑,聚合物熔融流和润滑剂的压力通常快速升高。 In this case, the flow of the polymer melt stream is no longer lubricated, the polymer melt stream and a lubricant is usually a rapid rise in pressure. 例如,在这种条件下聚合物熔融流的压力可以在大约数秒内从200psi(1.3106Pa)升高到2400psi(1.4107Pa)。 For example, under such conditions the pressure of the polymer melt stream can rise from a few seconds in the range of about 200psi (1.3 106Pa) to 2400psi (1.4 107Pa). 该区域应被看作是传统未润滑的纤维形成冲模的常规操作窗口,其中高操作压力基本上限制了聚合物的质量流速。 The area should be considered conventional fiber-forming die unlubricated operation of a conventional window, wherein the high operating pressure substantially limits the mass flow rate of the polymer.

使用冲模可以优选提供图1中所示的加宽的方法窗口,冲模中各孔会聚,导致聚合物是基本上纯的伸长流动。 Use the die may preferably be provided as shown in FIG. 1 Widening methods window, die each hole converging, resulting polymer is substantially pure elongation flow. 为实现此操作,可以优选的是,所述的模孔沿其长度(即,第一聚合物流动的方向)具有半双曲线会聚分布。 To achieve this, it may be preferred that the die orifice along its length (i.e., the direction of flow of the first polymer) having a semi-hyperbolic converging profile.

本发明至少一些实施方案的可能优点是具有制造通常不能被挤出成聚合纤维的聚合材料的聚合纤维的能力。 At least some of the advantages of the present invention may be embodiment is generally manufactured with polymeric fibers can not be extruded into polymeric fibers of polymeric material capacity. 熔流指数是涉及到聚合物的熔融粘度的一种通用工业术语。 Melt flow index is a common industry term related to the melt viscosity of the polymer. 美国试验和材料协会(ASTM)包括一种测试方法(ASTM D1238)。 American Society for Testing and Materials (ASTM) includes a test method (ASTM D1238). 这种测试方法规定了被用于测量特定聚合物种类的载荷和温度。 This test method specifies the load and temperature is used to measure the specific polymer types. 本文中,对于给定聚合物类型在ASTM D1238规定的条件下得到熔流指数值。 In this paper, obtained for a given type of polymer melt flow index ASTM D1238 under the conditions specified value. 熔融指数测试的一般原理包括在筒中加热待测试的聚合物,其中活塞在筒的顶部,小的毛细管或孔在筒的底部。 General principles of melt index testing involves heating the polymer to be tested in a cylinder, the bottom of which the top of the piston in the cylinder, or a small hole in the capillary tube. 当热平衡时,在活塞上施加预定重量,在预定时间内收集挤出物,并称重。 When the thermal equilibrium, a predetermined weight is applied to the piston, the extrudate was collected in a predetermined time, and weighed. 较高熔融指数值通常与较高流速和较低粘度相关,而较高流速和较低粘度都可以是较低分子量的表征。 Higher melt index value is usually associated with higher flow rates and lower viscosity associated with lower viscosity and higher flow rates are relatively low molecular weight can be characterized. 相反,较低熔融指数值通常与较低流速和较高粘度相关,而较低流速和较高粘度都可以是较高分子量聚合物的表征。 Conversely, lower melt index values are typically associated with lower flow rates and higher viscosity associated with lower flow rates and higher viscosity can be characterized higher molecular weight polymers.

在常规聚合纤维挤出方法中,挤出的聚合物的MFI为约35或更高。 In conventional polymeric fiber extrusion processes, the extruded polymer has a MFI of about 35 or greater. 使用本发明的方法,用于形成挤出的聚合纤维的聚合物熔融流可以包括一种或多种聚合物,其中一种或多种聚合物都表现出MFI为30或更小,在一些情况下为10或更小,在其他情况下为1或更小,和在其他情况下为0.1或更小。 Using the method of the present invention for forming a polymeric fibers extruded polymer melt stream may include one or more polymers, wherein the one or more polymers exhibit a MFI of 30 or less, in some cases under 10 or less, it is 1 or less in other cases, and in other cases is 0.1 or less. 在一些实施方案中,聚合物熔融流可以基本上由优选表现出MFI为30或更小,在一些情况下为10或更小,在其他情况下为1或更小,和在其他情况下为0.1或更小的一种聚合物构成。 In some embodiments, the polymer melt stream may consist essentially of preferably exhibit a MFI of 30 or less, in some instances 10 or less, is 1 or less in other cases, and in other cases as 0.1 or less, a polymer composition.

在一些实施方案中,聚合物熔融流的特征可以是包括占聚合物熔融流体积至少大部分的本体聚合物。 In some embodiments, wherein the polymer melt stream may include a polymer melt stream representing at least a majority of the volume of the bulk polymer. 在一些情况下,可以优选的是,本体聚合物占聚合物熔融流体积的60%或更多,或在其他情况下,可以优选的是,本体聚合物占聚合物熔融流体积的75%或更多。 In some cases, it may be preferred that the bulk polymer, 60% by volume of the polymer melt stream, or more, or in other cases, it may be preferred that the bulk polymer comprises 75 percent by volume of the polymer melt stream, or More. 在这些情况下,体积以输送到模具孔的聚合物熔融流测定。 In these cases, the volume of the polymer melt stream for delivery to the determination of the die hole.

本体聚合物可以优选表现出MFI为30或更小,在一些情况下为10或更小,在其他情况下为1或更小,和在其他情况下为0.1或更小。 Bulk polymer may preferably exhibit a MFI of 30 or less, in some instances 10 or less, is 1 or less in other cases, and 0.1 or less in other cases. 在特征是包括本体聚合物的实施方案中,除了本体聚合物之外,聚合物熔融流还可以包括一种或更多种第二聚合物。 In the embodiment wherein the bulk polymer comprising, in addition to the bulk polymer, the polymer melt stream may further include one or more of the second polymer. 在各种实施方案中,第二聚合物可以优选表现出MFI为30或更小,在一些情况下为10或更小,在其他情况下为1或更小,和在其他情况下为0.1或更小。 In various embodiments, the second polymer may preferably exhibit a MFI of 30 or less, in some instances 10 or less, is 1 or less in other cases, and in other cases 0.1 or smaller.

可以是低MFI聚合物并可以被挤出成本发明的纤维的聚合物的一些例子可以包括例如超高分子量聚乙烯(UHMWPE),乙烯-丙烯-二烯-单体(EPDM)橡胶,高分子量聚丙烯,聚碳酸酯,ABS,AES,聚酰亚胺,降冰片烯,Z/N和金属茂共聚物(EAA,EMAA,EMMA等),聚苯硫醚,离聚物,聚酯,聚酰胺,和衍生物(例如,PPS,PPO,PPE)。 May be low MFI polymers and the cost can be extruded invention, some examples of polymer fibers may include, for example ultrahigh molecular weight polyethylene (UHMWPE), an ethylene - propylene - diene - monomer (EPDM) rubber, high molecular weight polyethylene acrylic, polycarbonate, ABS, AES, polyimides, norbornene, Z / N and Metallocene copolymers (EAA, EMAA, EMMA, etc), polyphenylene sulfide, ionomers, polyesters, polyamides , and derivatives (for example, PPS, PPO, PPE).

可以与本发明相容的低MFI聚合物的其他例子是传统“玻璃状”聚合物。 Other examples of the present invention can be compatible with a low MFI polymers traditional "glassy" polymers. 这里用的术语“玻璃状”与表现出玻璃化转变温度(Tg)、密度、流变性、光学和介电变化特性的材料的致密随机形态的传统应用相同。 Here, the term "glassy" and showed a glass transition temperature (Tg), density, rheology, random traditional application form dense material changes in the optical and dielectric properties of the same. 玻璃状聚合物的例子可以包括但不限于聚甲基丙烯酸甲酯,聚苯乙烯,聚碳酸酯,聚氯乙烯等。 Examples of glassy polymers may include, but are not limited to, polymethyl methacrylate, polystyrene, polycarbonate, polyvinyl chloride and the like.

可以与本发明相容的低MFI聚合物的其他例子是传统“橡胶状”聚合物。 Other examples of the present invention can be compatible with a low MFI polymers traditional "rubbery" polymer. 术语“橡胶状”与传统命名相同:具有足够分子量以形成明显的缠绕,从而使具有长松弛时间的无规大分子材料。 The term "rubbery" and the traditional name for the same: having a molecular weight sufficient to form a clear wrapping so that random macromolecular material having a long relaxation time. “橡胶状”聚合物的例子可以包括但不限于聚氨酯,超低密度聚乙烯,苯乙烯嵌段共聚物如苯乙烯-异戊二烯-苯乙烯(SIS),苯乙烯-丁二烯-苯乙烯(SBS),苯乙烯-乙烯/丁烯-苯乙烯(SEBS),聚异戊二烯,聚丁二烯,EPDM橡胶,和其类似物。 Examples of "rubbery" polymer may include, but are not limited to, polyurethanes, ultra low density polyethylene, styrene block copolymers such as styrene - isoprene - styrene (SIS), a styrene - butadiene - benzene ethylene (SBS), styrene - ethylene / butylene - styrene (SEBS), polyisoprene, polybutadiene, EPDM rubber, and the like.

本发明也可用于将无定形聚合物挤出成纤维。 The present invention may also be used for an amorphous polymer is extruded into fibers. 本文中,“无定形聚合物”是一种结晶度较小或没有结晶度的聚合物,通常表现为根据ASTM D3418在差示扫描量热计中加热时缺少明显的熔点或第一级转化。 Herein, "amorphous polymer" is a small or no degree of crystallinity of the polymer crystallinity, manifests itself in a lack of significant melting point or a first conversion stage is heated in accordance with ASTM D3418 when scanning calorimetry meter.

在其他实施方案中,本发明的可能的优点是能够使用多相聚合物作为聚合物熔融流和润滑剂挤出聚合纤维。 In other embodiments, the possible advantages of the present invention is the ability to use the heterophasic polymer as the polymer melt stream and a lubricant extruded polymeric fibers. 多相聚合物是指例如由聚结成各自单独区域的不同物质构成的有机大分子。 Multiphase polymer refers for example to coalesce into organic molecules of different substances each constituted a separate area. 各区域具有其本身的明显性能,如玻璃化转变温度(Tg),重量密度,光学密度等。 Each region has its own distinct properties such as glass transition temperature (Tg), weight density, the optical density. 多相聚合物的一种这类性能是单独的聚合物相表现出不同的温度流变响应。 One such performance multiphase polymer is a separate polymer phase exhibits a different temperature rheological response. 更具体而言,它们在挤出加工温度下的熔融粘度明显不同。 More specifically, their melt viscosities at extrusion process temperatures significantly different. 一些多相聚合物的例子公开在例如美国专利4,444,841(Wheeler),4,202,948(Peascoe),和5,306,548(Zabrocki等人)中。 Some examples of multiphase polymers are disclosed in, for example, U.S. Patent 4,444,841 (Wheeler), 4,202,948 (Peascoe), and 5,306,548 (Zabrocki et al.).

本文中,“多相”指包括不混溶单体的共聚物的大分子的排列。 Used herein, "multiphase" refers to an arrangement comprising immiscible monomers macromolecules. 由于存在的共聚物不相容,在同一块材料中可存在明显不同的相或“区”。 Because of the copolymer incompatible, there can be distinct phases or "zone" in the same piece of material. 在本发明中适用于挤出多相聚合物纤维的热塑性聚合物包括但不限于以下类别的材料:聚醚,聚酯,或聚酰胺的多相聚合物;取向间同立构聚苯乙烯,乙烯-丙烯-二烯单体的聚合物(“EPDM”),包括用苯乙烯和丙烯腈的混合物接枝的乙烯-丙烯-非共轭二烯三元共聚物(也称作丙烯腈EPDM苯乙烯或“AES”);苯乙烯-丙烯腈(“SAN”)共聚物,包括接枝橡胶组合物,如包括用苯乙烯和丙烯腈或其衍生物(例如,α-甲基苯乙烯和甲基丙烯腈)接枝的交联的丙烯酸酯橡胶基质(例如,丁基丙烯酸酯)的那些,被称作“ASA”或丙烯酸酯-苯乙烯-丙烯腈共聚物,和包括用苯乙烯或丙烯腈或其衍生物(例如,α-甲基苯乙烯和甲基丙烯腈)接枝的丁二烯或者丁二烯和苯乙烯或丙烯腈的共聚物的基质的那些,被称作“ABS”或丙烯腈-丁二烯-苯乙烯共聚物,以及可提取的苯乙烯-丙烯腈共聚物(即,未接枝共聚物),通常也称作“ABS”聚合物;和其组合或共混物。 The thermoplastic polymer in the present invention is suitable for extrusion multiphase polymer fibers include, but are not limited to, the following categories of material: polyether, polyester, or polyamide multiphase polymer; alignment between syndiotactic polystyrene, ethylene - propylene - diene monomer polymer ("EPDM"), comprises a mixture of styrene and acrylonitrile grafted ethylene - propylene - non-conjugated diene terpolymer (also known as acrylonitrile EPDM benzene ethylene or "AES"); styrene - acrylonitrile ("SAN") copolymers including graft rubber compositions such as including styrene and acrylonitrile or derivatives thereof (e.g., α- methyl styrene and methyl acrylonitrile-yl) grafted crosslinked acrylate rubber substrate (e.g., butyl acrylate) are those, known as "ASA" or acrylate - styrene - acrylonitrile copolymers, styrene or propylene, and comprising nitrile matrix or derivatives thereof (e.g., α- methyl styrene and methacrylonitrile) grafted butadiene or butadiene and styrene or acrylonitrile those referred to as "ABS" or acrylonitrile - butadiene - styrene copolymers, and extractable styrene - acrylonitrile copolymers (i.e., non-grafted copolymer), also commonly known as "ABS" polymers; and combinations or blends thereof thereof. 本文中,术语“共聚物”应该被理解成包括三聚物,四聚物等。 Herein, the term "copolymer" should be understood to include trimers, tetramers and the like.

在多相共聚物树脂的苯乙烯家族(即,多相苯乙烯热塑性共聚物)内可以发现可用于挤出多相聚合物纤维的聚合物的一些例子,上面称作AES,ASA,和ABS,和其组合或共混物。 Family heterophasic styrene copolymer resin (i.e., multiphase styrenic thermoplastic copolymer) can be found within a few examples can be used to extrude the multiphase polymer fibers polymer, referred to above, AES, ASA, and ABS, and combinations or blends thereof. 这种聚合物公开在美国专利4,444,841(Wheeler),4,202,948(Peascoe),和5,306,548(Zabrocki等人)中。 Such polymers are disclosed in U.S. Patent No. 4,444,841 (Wheeler), 4,202,948 (Peascoe), and 5,306,548 (Zabrocki et al.). 共混物可以是多层纤维的形式,其中每一层是不同的树脂,或是聚合物的物理共混物,然后被挤出成单纤维。 Blend may be in the form of a multilayer fiber, wherein each layer is a different resin, or physical blends of polymers, and then extruded into a single fiber. 例如,ASA和/或AES树脂可被共挤出在ABS上。 For example, ASA and / or AES resins can be co-extruded on ABS.

多相聚合物系统在纤维加工中仍存在很大难题,因为不同相具有非常不相同的加工流变响应。 Multiphase polymer systems in fiber processing, there are still big problems because of the different phases have very different rheological response. 例如,结果可能是多相聚合物的拉伸响应极差。 For example, the results may be stretched in response to a multiphase polymer poor. 不同相的不同流变响应可能在包括抽拉或拉扯挤出纤维的常规纤维形成方法中引起拉伸反应的很大变化。 Different rheological response of different phases may cause great changes in the conventional fiber tensile reaction forming method include drawing or pulling the extruded fibers. 在许多情况下,存在多个聚合物相会表现出不充分的内聚力以抵抗抽拉过程的拉伸应力,使纤维破裂或断裂。 In many cases, there are a plurality of polymer meet exhibit insufficient cohesion to resist the tensile stresses of the drawing process, the fiber cracking or breaking.

在本发明中,基于在纤维形成过程中怎样使材料取向,可以解决与挤出多相聚合物相关的独特难题。 In the present invention, based on the fiber formation process, how the material is oriented multiphase polymer extrusion can be solved with the relevant unique challenges. 可以优选的是,本发明中,多相聚合物材料通过模孔被挤压或'推出',从而使聚合物材料取向(与拉扯或抽拉相反)。 It may be preferred that the present invention, the multiphase polymer material is extruded through a die orifice or 'launch', so that the orientation of the polymer material (as opposed to pulling or drawing). 因此,本发明可以基本上降低破裂的可能。 Accordingly, the present invention can substantially reduce the possibility of rupture.

可用本发明方法中的一些多相聚合物是多相AES和ASA树脂,和其组合或共混物。 Available methods of the present invention, some of the multiphase polymer multiphase AES and ASA resins, and combinations or blends thereof. 市售AES和ASA树脂或其组合包括例如如下的那些:以商品名ROVEL从Dow Chemical Company,Midland,MI得到,以商品名LORAN S 757和797从BASF Aktiengesellschaft,Ludwigshafen,Fed.Rep.of Germany得到,以商品名CENTREX 833和401从Bayer Plastics,Springfield,CT得到,以商品名GELOY从GeneralElectric Company,Selkirk,NY得到,以商品名VITAX从HitachiChemical Company,Tokyo,Japan得到。 Commercially available AES and ASA resins, or combinations thereof include those such as the following: the trade name ROVEL from Dow Chemical Company, Midland, MI obtained under the trade name LORAN S 757 and 797 from BASF Aktiengesellschaft, Ludwigshafen, Fed.Rep.of Germany get tradename CENTREX 833 and 401 from Bayer Plastics, Springfield, CT obtained under the trade name GELOY from GeneralElectric Company, Selkirk, NY obtained under the trade name VITAX get from HitachiChemical Company, Tokyo, Japan. 据信一些市售AES和/或ASA材料中共混有ABS。 It is believed that a number of commercially available AES and / or ASA materials blended have ABS. 市售SAN树脂包括以商品名TYRIL从DowChemical,Midland,MI得到的那些。 Commercially available SAN resins include those tradename TYRIL from DowChemical, Midland, MI obtained. 市售ABS树脂包括以商品名CYOLAC如CYOLAC GPX3800从General Electric,Pittsfield,MA得到的那些。 ABS resins include those commercially available under the trade name CYOLAC as CYOLAC GPX3800 from General Electric, Pittsfield, MA obtained.

也可以从一种或多种上列材料和一种或多种其他热塑性聚合物的共混物制备多相聚合物纤维。 It may be from one or more of the above materials and one or more other thermoplastic polymer blends of heterophasic polymer fibers. 可以与上面列出的得到的材料共混的这类热塑性聚合物的例子包括但不限于以下类别的材料:双轴取向聚醚;双轴取向聚酯;双轴取向聚酰胺;丙烯酸类聚合物如聚(甲基丙烯酸甲酯);聚碳酸酯;聚酰亚胺;纤维素类,如纤维素乙酸酯,纤维素(乙酸酯-共-丁酸酯),纤维素硝酸酯;聚酯,如聚(对苯二甲酸丁二醇酯),聚(对苯二甲酸乙二醇酯);氟聚合物如聚(氯氟乙烯),聚(偏二氟乙烯);聚酰胺,如聚(己内酰胺),聚(氨基己酸),聚(六亚甲基二胺-共-己二酸),聚(酰胺-共-酰亚胺),和聚(酯-共-酰亚胺);聚醚酮;聚(醚酰亚胺);聚烯烃如聚(甲基戊烯);脂肪族和芳香族聚氨酯;聚(苯醚);聚(苯硫醚);无规立构聚(苯乙烯);铸型用间同立构聚苯乙烯;聚砜;硅树脂改性的聚合物(即,含有较小重量百分比(小于10wt.%)的硅树脂的聚合物),如硅树脂聚酰胺和硅树脂聚碳酸酯;含有钠或锌离子的乙烯共聚离聚物,如聚(乙烯-共-甲基丙烯酸),以商品名SURLYN-8920和SURLYN-9910从EIduPont de Nemours,Wilmington,DE得到;酸官能的聚乙烯共聚物,如聚(乙烯-共-丙烯酸)和聚(乙烯-共-甲基丙烯酸),聚(乙烯-共-马来酸),和聚(乙烯-共-富马酸);氟改性的聚合物,如全氟聚(对苯二甲酸乙二醇酯);和上述聚合物的混合物,如聚酰亚胺和丙烯酸类聚合物的共混物,和聚(甲基丙烯酸甲酯)和氟聚合物的共混物。 Examples of such materials blended thermoplastic polymers listed above may be obtained include, but are not limited to, the following classes of materials: biaxially oriented polyethers; biaxially oriented polyester; biaxially oriented polyamide; acrylic polymer such as poly (methyl methacrylate); polycarbonates; polyimides; celluloses, such as cellulose acetate, cellulose (acetate - co - butyrate), cellulose nitrate; poly esters, such as poly (butylene terephthalate), poly (ethylene terephthalate); fluorine polymers such as poly (chlorofluoroethylene), poly (vinylidene fluoride); polyamides, e.g. poly (caprolactam), poly (amino acid), poly (hexamethylene diamine - co - adipic acid), poly (acrylamide - co - imide), and poly (ester - co - imide) ; polyether ketone; poly (ether imide); polyolefins such as poly (methyl pentene); aliphatic and aromatic polyurethanes; poly (phenylene ether); poly (phenylene sulfide); atactic poly ( styrene); mold using syndiotactic polystyrene; polysulfone; silicone modified polymers (ie, containing a small weight percent (less than 10wt%) of the silicone polymer), such as silicone polyamide and silicone polycarbonate; sodium or zinc ions containing ethylene copolymer ionomers, such as poly (ethylene - co - methacrylic acid), under the trade name SURLYN-8920 and SURLYN-9910 from EIduPont de Nemours, Wilmington, DE obtain; acid functional polyethylene copolymers, such as poly (ethylene - co - acrylic acid) and poly (ethylene - co - methacrylic acid), poly (ethylene - co - maleic acid), and poly (ethylene - co - fumaric acid); fluorine-modified polymers, such as perfluorinated poly (ethylene terephthalate); and mixtures of the above polymers, such as polyimide and acrylic polymer blend, and blends of poly (methyl methacrylate) and fluoropolymers.

本发明所用的聚合物组合物可以包括其他成分,例如,UV稳定剂和抗氧化剂(如从Ciba-Geigy Corp.,Ardsley,NY,以商品名IRGANOX得到的那些),颜料,阻燃剂,抗静电剂,脱模剂(如以商品名LOXILG-715或LOXIL G-40从Henkel Corp.,Hoboken,NJ,或以WAX E从Hoechst Celanese Corp.,Charlotte,NC得到的脂肪酸酯)。 The polymer composition used in the present invention may include other components, for example, UV stabilizers and antioxidants (e.g., from Ciba-Geigy Corp., Ardsley, NY, under the trade name IRGANOX those obtained), pigments, flame retardants, anti- static agents, mold release agents (e.g. tradename LOXILG-715 or LOXIL G-40 from Henkel Corp., Hoboken, NJ, or WAX E from Hoechst Celanese Corp., Charlotte, NC The resulting fatty acid ester). 着色剂,如颜料和染料,也可被加到聚合物组合物中。 Colorants, such as pigments and dyes, can also be added to the polymer composition. 着色剂的例子可以包括以商品名R960从DuPont de Nemours,Wilmington,DE得到的金红石TiO2颜料,氧化铁颜料,碳黑,硫化镉,和酞菁铜。 Examples of coloring agents may include tradename R960 from DuPont de Nemours, Wilmington, DE obtain rutile TiO2 pigments, iron oxide pigments, carbon black, cadmium sulfide, and copper phthalocyanine. 经常,上述含有一种或多种添加剂尤其是颜料和稳定剂的聚合物可市售得到。 Often, one or more additives comprising the above particular polymer pigments and stabilizers are commercially available. 通常,这种添加剂的用量能够提供所需特性。 Typically, the amount of such additives to provide desired characteristics. 优选地,按聚合物组合物总重计,它们的用量为约0.02-20wt-%,更优选约0.2-10wt-%。 Preferably, according to the total weight of the polymer composition, they are used in an amount of about 0.02-20wt-%, more preferably from about 0.2-10wt-%.

本发明至少一些实施方案的另一种可能的优点是具有能够在相对较低温度下挤出聚合物熔融流的能力。 The present invention is at least another possible advantage of some embodiments is the ability to have the extruded polymer at a relatively low temperature of the molten stream. 例如,在半结晶聚合物的情况下,当通过进入冲模各孔被推动的聚合物熔融流的平均温度比聚合物熔融流的熔融加工温度高10℃或更小时,可以挤出聚合物熔融流。 For example, in the case of semi-crystalline polymers, when the holes through the die is pushed into the polymer melt stream than the average temperature of the melt processing temperature of the polymer melt stream 10 ℃ higher or more hours, can be extruded polymer melt stream . 在一些实施方案中,在聚合物熔融流离开孔的入口之前,聚合物熔融流的平均温度优选是在聚合物熔融流的熔融加工温度或比其低。 In some embodiments, the polymer melt before the inlet opening displacement, the average temperature of the polymer melt stream is preferably in melt processing temperature of the polymer melt stream, or lower than.

尽管不希望限于理论,但理论上认为,本发明可以依赖润滑剂性能的优势在挤压过程中加工聚合物,其中聚合物粘度在应变(压力和温度)响应中起到相对较小的作用。 Although not wishing to be bound by theory, it is theorized that the advantages of the present invention can rely on the performance of a lubricant during extrusion processing polymer, wherein the polymer viscosity strain (pressure and temperature) response plays a relatively small role. 此外,存在润滑剂还允许聚合物在冲模内“淬火”(例如,晶体或玻璃“玻璃化”形成)。 In addition, there is a lubricant also allows the polymer in the die "hardening" (for example, crystal or glass "glass" form). 冲模内淬火的可能的优点可以包括例如保持挤出物的取向和尺寸精度。 Possible advantages of the die quenching may include, for example, to maintain the alignment and dimensional accuracy of the extrudate.

本文中,聚合物熔融流的“熔融加工温度”是聚合物熔融流能够在1秒或更短时间内通过冲模的各孔的最低温度。 Herein, the polymer melt stream "melt processing temperature" is the polymer melt stream can be one second or less through the holes in the die of the lowest temperature. 在一些情况下,如果聚合物熔融流是无定形的,那么熔融加工温度可以是在玻璃化转变温度或比其略高,如果聚合物熔融流是结晶或半结晶的,那么可以是在熔融温度或比其略高。 In some cases, if the polymer melt stream is amorphous, then the melt processing temperature may be the glass transition temperature or slightly higher than, if the polymer melt stream is crystalline or semi-crystalline, it may be a melting temperature or slightly higher than that. 如果聚合物熔融流包括与一种或多种结晶和一种或多种半结晶聚合物中的任一种或两种共混的一种或多种无定形聚合物,那么熔融加工温度是无定形聚合物的最低玻璃化转变温度或结晶和半结晶聚合物的最低熔融温度中的更低者。 If the polymer melt stream comprises one or more crystalline and one or more semi-crystalline polymer of any one or a blend of two or more amorphous polymers, then the melt processing temperature is no the lowest glass transition temperature of amorphous polymers and semi-crystalline polymer or a crystalline melting temperature of the lowest were lower.

可用于本发明冲模中的一种示例性模孔示于图2的截面图中,其中冲模板10和互补冲模板盖12示于截面图。 An exemplary die orifice die of the present invention can be used in cross-sectional view shown in FIG. 2, wherein the die plate 10 and the complementary die plate cover 12 is shown in cross-sectional view. 冲模板10和冲模板盖12限定了与冲模板10中的孔22流体连通的聚合物输送通道20。 Die plate 10 and the die plate cover 12 defines a polymer delivery channel 22 and die plate 10 in fluid communication with the bore 20. 形成在冲模板盖12中的聚合物输送通道20的一部分在开口16终止,聚合物熔融流通过开口14进入形成在冲模板10内的聚合物输送通道20的一部分。 Formed in a portion of the die plate cover part 12 polymeric delivery channel 20 terminates at an opening 16, the polymer melt stream through the opening 14 into the die plate 10 is formed in the polymer delivery passage 20. 在图示实施方案中,冲模板盖12中的开口16通常与冲模板10中的开口14具有相同大小。 In the illustrated embodiment, the die plate cover 12 with an opening 16 generally die plate 10 in the opening 14 of the same size.

图3示出了孔22的放大图,加入附图标记“r”表示孔22的半径,和附图标记“z”表示孔22沿轴11的长度。 Figure 3 shows an enlarged view of the hole 22, and added reference numeral "r" represents the radius of hole 22, and the reference numeral "z" indicates the length of the hole 22 along the shaft 11. 形成在冲模板10中的孔22优选可以会聚,使得截面积(垂直于轴11测量的)小于入口24的截面积。 Formed in the die plate 10 may converge hole 22 is preferably such that the cross-sectional area (measured perpendicular to the axis 11) is less than the cross-sectional area of the inlet 24. 可以优选的是,如本文所述,可以设计模孔22的形状,使得聚合物熔融流的伸长应变率沿孔22的长度(即,沿轴11)恒定。 It may be preferred, as described herein, may be designed in the shape of the die orifice 22, so that the elongation strain rate of the polymer melt stream along the length of the hole 22 (i.e., along the axis 11) constant.

如本文所述,可以优选的是,模孔具有会聚半双曲线分布。 As described herein, may be preferred that the die orifice having a converging semi-hyperbolic profile. “半双曲线”形状的定义从体积流动,通道面积和流体速度间的基本关系开始。 Define the shape of the "semi-hyperbolic" from the basic relationship volumetric flow channel area between the start and the fluid velocity. 尽管对孔22的说明使用圆柱形例子,但是应该理解,本发明所用的模孔可以不具有圆柱形特征。 Although the description of an example using a cylindrical hole 22, it should be understood that die orifices used in the present invention may not have a cylindrical shape characteristics.

沿轴11通过孔22的流动可沿轴11在每个位置用下面公式描述:Q=V*A (1)其中Q是通过孔的体积流动的量度,V是通过孔的流速,和A是孔22在选定位置沿轴11的截面积。 Along the shaft 11 through the flow holes 22 along the shaft 11 at each position is described by the following equation: Q = V * A (1) where Q is the volume flow through the measurement aperture, V is the flow rate through the orifice, and A is hole 22 at selected locations along the shaft cross-sectional area (11).

公式(1)可被重排,解出速度,得到下面的公式:V=Q/A (2)由于会聚孔的截面积沿孔的通道的长度变化,因此可以使用下面的公式描述公式(2)中各变量间的各种关系:dVz/dz=(-Q/A2)(dA/dz) (3)在公式(3)中,随着沿孔的长度的位置变化而变化的速度表达式也定义了流体的拉伸流动(ε)。 Equation (1) can be rearranged, solve rate, yields the following equation: V = Q / A (2) Due to changes in cross-sectional area along the length of the bore hole converging channel, so you can use the following formula described in equation (2 ) various relationships between variables: dVz / dz = (- Q / A2) (dA / dz) (3) in equation (3), along with the change in position of the length of the hole the speed of change expression also it defines a fluid flow stretch (ε). 稳定或恒定的拉伸流动是通过会聚孔流动的优选结果。 Stable or constant extensional flow is preferred result by converging hole mobility. 因此,可以优选的是,孔的截面积变化使得产生通过孔的恒定拉伸流动。 Therefore, it is preferred that the cross-sectional area of the hole so that the change produced by a constant elongational flow holes. 定义稳定或恒定的拉伸流动的公式表达为:dVz/dz=ε=常数 (4)可以被随着沿孔的长度的位置变化而变化的面积取代并产生恒定或稳定的拉伸流动的表达式可以被表达为:f(r,z)=常数=r2Z (5)公式(5)的表达式的一般形式可以如下: Expression is defined stable or constant extensional flow equation: dVz / dz = ε = constant (4) may be as the position changes along the length of the aperture area varies substituted and generates a constant elongational flow or stable expression formula can be expressed as: f (r, z) = constant = r2Z (5) Equation (5) can be an expression of the general form as follows:

f(r,z)=C1+C2r2Z (6)公式(6)可被用于测定本发明中所用的孔22的形状。 f (r, z) = C1 + C2r2Z (6) Equation (6) can be used to determine the shape of the present invention is used in the hole 22. 为设计孔的形状,可以优选的是,测定孔22的出口26的直径几何限制(应该理解,出口直径是从孔22挤出的纤维尺寸的指示)。 Hole shape design, it may be preferred that the diameter of the outlet hole 22 measuring geometrical restrictions 26 (it should be understood that the outlet diameter of the orifice 22 is extruded from indicating the size of the fibers). 可选择地,可以使用孔22的入口24的直径。 Alternatively, you can use the diameter of the hole 22 of the inlet 24.

当选择了孔22的入口24或出口26之一的半径(以及相应的面积)时,通过选择所需的拉伸应变可以测定另一个,选择通过孔22的流体(即,聚合物熔融流)所经历的所需的拉伸应变优选可以测定另一个的半径(即,入口24或出口26的半径)。 When you select one of the inlet 24 or outlet 26 radius hole 22 (and the corresponding area) by selecting the desired tensile strain can be measured another, select the fluid through the hole 22 (ie, the polymer melt stream) experienced the desired tensile strain can be measured another preferred radius (i.e., the inlet 24 or outlet 26 of the radius).

该值即拉伸应变有时可以被称作“Hencky应变”。 The value that is tensile strain may sometimes be referred to as "Hencky strain." Hencky应变基于被拉伸的材料的拉伸或工程应变。 Hencky strain on the stretched tensile strain or engineering. 下面的公式描述了通过通道例如本发明的孔的流体的Hencky应变:流体上的Hencky应变=ln(r02/rz2)=ln(A0/Az)(7)选择通过孔的流体所经历的所需的Hencky应变来固定或设置上述孔的另一端的半径(以及面积)。 The following equation describes the hole through the channel of the present invention such as fluid Hencky strain: Hencky strain on the fluid = ln (r02 / rz2) = ln (A0 / Az) (7) Select the desired fluid through the hole experienced The Hencky strain to fix or set the other end of said bore radius (and the area). 设计特征的最后是确立待润滑的孔的长度。 The final design feature is to establish the length of the hole to be lubricated. 一旦选择了孔22的长度(图3中的“z”),并且入口24和出口的半径/面积是已知的,通过用随着沿孔22的长度(沿“z”方向)的位置变化而变化的半径(面积)回归公式6,得到常数C1和C2。 Once the hole length 22 (Fig. 3 "z"), and the inlet 24 and the outlet radius / area is known, along with the hole by length (along the "z" direction) 22 position changes The change in radius (area) of the regression equation 6, to give constants C1 and C2. 下面的公式提供沿“z”尺寸(rz)的每一位置的孔的半径:rz=[((z)(es-1)+长度)/(r入口*长度)]-1/2(8)其中z是从孔的入口测量的沿纵轴在z方向的位置;e=(r入口)2/(r出口)2;s=Hencky应变;r入口是孔的入口处的半径;r出口是孔的出口处的半径;和长度是在z方向从孔的入口到出口的孔的总长度。 The following formula provides along the "z" pore size (rz) for each position of the radius: rz = [((z) (es-1) + length) / (r * Length inlet)] - 1/2 (8 ) wherein z is measured from the orifice of the inlet along the longitudinal axis in the z-direction location; e = (r inlet) 2 / (r outlet) 2; s = Hencky Strain; r is the radius of the entrance of the inlet hole; r outlet It is the radius at the exit orifice; and a length in the z-direction from the inlet to the outlet orifice of the total length of the hole. 为讨论Hencky应变和相关原理,必须参考CWMacosko“Rheology-Principles,Measurements and Applications”,285-336页(Wiley-VCHInc.,New York,第1版,1994)。 Hencky strain and to discuss the relevant principles, must refer CWMacosko "Rheology-Principles, Measurements and Applications", 285-336 page (Wiley-VCHInc., New York, first edition, 1994).

参考图2,冲模板10还包括与在冲模板10和冲模板盖12间形成的润滑剂高压室32流体连通的润滑剂通道30。 Referring to Figure 2, the die plate 10 also includes a high-pressure chamber and a lubricant in the die plate 10 and the die plate 32 of the cover 12 formed in fluid communication with the lubricant channel 30. 冲模板10和冲模板盖12优选限定了间隙34,使得通过润滑剂通道30进入润滑剂高压室32的润滑剂将从狭槽36并通过开口14进入聚合物输送通道20。 Die plate 10 and the die plate cover 12 preferably defines a gap 34, so that by the lubricant channel 30 into the lubricant lubricant high-pressure chamber 32 from the slots 36 through the opening 14 into the polymer delivery channel 20. 这样,可以将润滑剂独立于聚合物熔融流被输送进孔22中。 This lubricant can be independent of the polymer melt stream is fed into the hole 22.

狭槽36优选绕聚合物输送通道20的周边延伸。 Slots 36 around the periphery of the preferred polymer delivery passage 20 extends. 狭槽36优选绕聚合物输送通道20周边是连续或不连续的。 Slot 36 is preferably about 20 surrounding polymer delivery passage is continuous or discontinuous. 可以基于各种因素调整形成间隙34和狭槽36的冲模板10和冲模板盖12之间的间距,如聚合物熔融流通过聚合物输送通道20时的压力,聚合物熔融流和润滑剂的相对粘度等。 It can cover the spacing 12 between the adjustment based on various factors to form a gap 34 and the slot 36 of the die plate 10 and the die plate, such as a polymer melt stream pressure feed passage through the polymer 20:00, the polymer melt stream and lubricants Relative viscosity. 在一些情况下,狭槽36可以是在形成间隙34的两个粗糙(例如,喷砂的,研磨的等)表面(或一个粗糙表面和一个相对的光滑表面)的界面间形成的一个开口或多个开口的形式。 Between some cases, the slots 36 may be formed in the gap 34 of both coarse (e.g., sandblasted, polished, etc.) a surface (or a rough surface and a relatively smooth surface) of an opening formed at the interface or multiple forms of openings.

图4是除去冲模板盖12的冲模板10的俯视图。 Figure 4 is a die plate cover is removed plan view of the die plate 12 10. 其中示出了多个开口14,聚合物输送通道20,模孔22,和润滑剂高压室32。 Which shows a plurality of openings 14, polymer delivery passages 20, die orifices 22, and lubricant high-pressure chamber 32. 所示的聚合物输送通道20具有恒定截面积(垂直于图2中的轴11测量的),并且在所示的实施方案中是圆柱形。 Polymer delivery passage 20 shown has a constant cross-sectional area (perpendicular to the axis 2 in FIG. 11 measured), and in the embodiment shown is cylindrical. 然而,应该理解,聚合物输送通道20和相关的模孔22可以是任何适合的截面形状,例如矩形、卵形、椭圆形、三角形、正方形等。 However, it should be understood that the polymer delivery passages 20 and associated die orifices 22 may be of any suitable cross-sectional shape, such as rectangular, oval, elliptical, triangular, square, etc..

可以优选的是,如图4所示,润滑剂高压室32绕聚合物输送通道20的周边延伸,可以绕聚合物输送通道20的周边输送润滑剂。 May be preferred that, as shown in FIG. 4, the lubricant high-pressure chamber 32 extends around the periphery of the polymer delivery passage 20, the polymer can be transported around the periphery of the channel 20 conveying the lubricant. 这样,当润滑剂通过聚合物输送通道20并进入模孔22时,它优选绕聚合物熔融流周边形成层。 Thus, when the lubricant through polymer delivery passage 20 and into the 22 o'clock die orifice, the polymer melt stream layer which is preferably formed around the periphery. 在所示的实施方案中,如图4所示,由延伸到冲模板10外缘的润滑剂通道30向高压室32供应。 In the embodiment shown in Figure 4, the die plate 10 extends to the outer edge 32 of the lubricant supply passage 30 to the high-pressure chamber.

可以优选的是,如图4所示,每个高压室32由独立地润滑剂通道30供应。 It may be preferred that shown in Figure 4, each pressure chamber 32 by the supply passage 30 is independently a lubricant. 通过独立地供应每个高压室32(以及它们相关的模孔22),可以控制各种加工变量。 By independently supplying each of the high-pressure chamber 32 (and their associated die orifices 22), you can control various processing variables. 这些变量可以包括例如润滑剂压力,润滑剂流速,润滑剂温度,润滑剂组合物(即,不同的润滑剂可以被供应到不同的孔22)等。 These variables may include, for example, lubricant pressure, the lubricant flow rate, the lubricant temperature, the lubricant composition (i.e., different lubricants may be supplied to the different holes 22) or the like.

然而,作为选择可以优选的是,在一些系统中主高压室用于将润滑剂供应到每个润滑剂通道30,然后将润滑剂供应到与孔22相连的每个高压室32。 However, alternatively it may be preferred in some systems the main high-pressure chamber for the lubricant supplied to each lubricant channel 30, and then supplied to each lubricant hole 22 and the high pressure chamber 32 is connected. 在这种系统中,润滑剂到每个孔的输送可以优选在所有孔间平衡。 In such a system, the delivery of each lubricant hole may preferably balance between all holes.

图5是本发明所用的一个系统90的示意图。 Figure 5 is a schematic diagram of a system in the present invention 90. 系统90可以优选包括将聚合物输送到挤出机96的聚合物源92和94。 System 90 may preferably comprise a polymer fed to the extruder 92 and the source 96 of polymer 94. 尽管示出了两个聚合物源,但是应该理解,在一些系统中可以仅提供一个聚合物源。 Although a two polymer sources, it should be understood that, in some systems only one polymer source may be provided. 此外,其他系统可以包括三个或更多个聚合物源。 In addition, other systems may include three or more polymer sources. 此外,尽管只示出了一个挤出机96,但是应该理解,系统90可以包括能够将所需聚合物输送到本发明的冲模98的任何挤出系统或装置。 In addition, although only one is shown an extruder 96, it should be appreciated that the system 90 may include desired polymer can be delivered to the die 98 of the present invention, any extrusion system or apparatus.

系统90还包括与冲模98可操作地连接的润滑剂装置97,以将润滑剂输送到根据本发明原理的冲模。 System 90 also includes a die 98 with lubricant means 97 operatively connected to the lubricant to the die according to the principles of the present invention. 在一些情况下,润滑剂装置97可以是润滑剂聚合物源和挤出装置的形式。 In some instances, the lubricant apparatus 97 may be in the form of a lubricant polymer source and extrusion apparatus.

此外,在所示的系统90中,从冲模98挤出两根纤维40。 Further, in the system 90 shown, the two fibers extruded from the die 98 40. 尽管示出了两根纤维40,但是应该理解,在一些系统中仅可以制造出一根纤维,而在其他系统中可以同时制造出三根或更多根聚合物纤维。 Although a two fibers 40, it should be understood that in some systems only can produce a fiber, while in other systems can produce three or more root polymer fibers.

图6示出了本发明所用的模孔的另一种示例性实施方案。 Figure 6 shows another exemplary embodiment of the present invention used in the mold hole. 在图6中仅示出了装置的一部分,以阐明在模孔122的入口114和通过冲模板110和冲模板盖112之间的间隙134输送润滑剂间的可能关系。 In Figure 6 shows only part of the means to clarify the die hole 122 of inlet 114 and the die plate 110 through the gap between the lid and the die plate 112, 134 may transport relations between lubricant. 在所示装置中,独立于聚合物熔融流输送的润滑剂通过间隙134在孔122的入口116被引入。 In the apparatus shown, independent of the polymer melt stream 116 is introduced into the lubricant supply through the gap 134 in the hole 122 of the inlet. 聚合物熔融流本身通过通过冲模板盖112中的聚合物输送通道120输送到模孔122的入口116。 Polymer melt stream itself through cover 112 polymer delivery passage through the die plate 120 transferred to the inlet 116 of the die hole 122.

在图6的示例性装置中所示的另一种任选关系是与从聚合物输送通道120引导进入口114的开口116的尺寸相比模孔122的入口114的相对尺寸。 Another optional relationship shown in FIG. 6, the exemplary apparatus 120 is guided from the polymer delivery passage 114 into the port opening 116 as compared to the size of the die hole 122 of the relative sizes of the inlet 114. 可以优选的是,开口116的截面积小于进入模孔122的入口114的截面积。 It may be preferred that the opening 116 is smaller than the cross-sectional area of the inlet hole 122 into the mold 114 cross-sectional area. 本文中,通常在垂直于纵轴111的平面中测定开口的“截面积”(优选地,沿聚合物熔融流通过聚合物输送通道和模孔122移动的方向)。 Herein, generally in a plane perpendicular to the longitudinal axis of the opening 111 Determination "sectional area" (preferably, the polymer melt stream along the conveying direction of the channel and the orifice 122 moves through the polymer).

图7示出了本发明所用的另一种可能装置。 Figure 7 shows another device of the present invention may be used. 图7是从冲模板210上方看的一个模孔222的放大俯视图(与图4所示相似)。 Figure 7 is a top die plate a die aperture 210 222 see enlarged plan view (similar to that shown in Fig. 4). 沿模孔222的出口226示出模孔222的入口216。 222 along the die orifice exit die orifice 222 226 shows an inlet 216. 图7和之前附图设计的一个不同处在于,润滑剂通过在通道234a,234b,和234c端部的多个开口被输送到模孔222。 Prior to the drawings and Figure 7 a different design in that the lubricant through-channel 234a, 234b, 234c, and a plurality of opening ends of the hole 222 is delivered into the mold. 这是与在上述实施方案中的冲模板和冲模板盖间的间隙形成的连续狭槽相比而言。 This is a contrast with the continuous slot cover gap between the die plate and the die plate in the above embodiments of the formation. 尽管示出了输送润滑剂的三个开口,但是应该理解,可以设置小至两个开口或多于三个的开口。 Although shown three openings for delivering lubricant, it should be appreciated that two small openings may be provided three or more openings.

图8示出了从聚合物熔融流40和润滑剂42从本发明的冲模的出口26的流动。 Figure 8 shows the polymer melt stream 40 and lubricant 42 from the outlet die of the present invention, the flow 26. 聚合物熔融流40和润滑剂42以截面图示出,显示了聚合物熔融流40的外表面41上的润滑剂42。 Polymer melt stream 40 and lubricant 42 is illustrated in cross-section, showing the polymer melt stream outer surface 40 of the 41 lubricant 42. 可以优选的是,润滑剂被提供在整个外表面41上,使得润滑剂42位于聚合物熔融流40和模孔的内表面23之间。 It may be preferred that the lubricant is provided on the entire outer surface 41, so that the lubricant 42 is located between the polymer melt stream 23 and the inner surface 40 of the die orifice.

尽管示出的是在聚合物熔融流40离开孔出口26后润滑剂42在聚合物熔融流40的外表面41上,但是应该理解,在一些情况下,在聚合物熔融流40和润滑剂42离开冲模出口26时或之后不久,可以从聚合物熔融流40的外表面41上除去润滑剂42。 Although it illustrated in the polymer melt stream 40 leaving the outlet orifice 26 lubricant 42 after the polymer melt stream 41 on the outer surface 40, it should be understood that, in some instances, the polymer melt stream 40 and lubricant 42 or after leaving the die exit shortly after 26, the polymer melt stream from the outer surface 40 of the 41 42 to remove the lubricant.

除去润滑剂42可以是主动的或被动的。 Remove the lubricant 42 can be active or passive. 被动除去润滑剂42可以包括例如蒸发、重力或吸附。 Removing the lubricant 42 may include passive evaporation for example, gravity or adsorption. 例如,在一些情况下,润滑剂42和/或聚合物熔融流40的温度可能足够高,使润滑剂42蒸发,而在离开冲模出口26后没有任何进一步作用。 For example, in some cases, the lubricant 42 and / or the polymer melt stream temperature of 40 may be high enough to evaporate the lubricant 42, and on leaving the die exit after 26 without any further action. 在其他情况下,可以使用例如水或另一种溶剂,空气射流等从聚合物熔融流40主动除去润滑剂。 In other cases, you can use such as water or another solvent, air jets, etc. from the polymer melt stream 40 initiative to remove the lubricant.

取决于润滑剂42的组成,部分润滑剂42可以保留在聚合物熔融流40的外表面41上。 Depending on the composition of the lubricant 42, lubricant 42 may remain in the polymer melt stream 41 on the outer surface 40. 例如,在一些情况下,润滑剂42可以是两种或更多种成分的组合物,如一种或多种载体和一种或多种其他成分。 For example, in some cases, the lubricant 42 may be a combination of two or more ingredients, such as one or more carriers and one or more other ingredients. 载体可以是例如溶剂(水,矿物油等),它们被主动或被动除去,从而在聚合物熔融流40的外表面41上留下一种或多种其他成分。 The carrier can be for example a solvent (water, mineral oil, etc.), which are removed actively or passively, so that the polymer melt stream 41 leaving the outer surface 40 of one or more other ingredients.

在其他情况下,润滑剂42可以被保留在聚合物熔融流40的外表面41上。 In other cases, the lubricant 42 may be retained in the polymer melt stream outer surface 40 of the 41. 例如,润滑剂42可以是相对于聚合物熔融流40的粘度而言粘度足够低的聚合物,使得它可以在挤出过程中用作润滑剂。 For example, the lubricant 42 may be a relative viscosity of the polymer melt stream 40 in terms of the viscosity of the polymer is low enough so that it can be used as a lubricant during extrusion. 也可用作润滑剂的可能适合的聚合物的例子可以包括例如聚乙烯醇,高熔流指数聚丙烯,聚乙烯等。 Suitable polymers may also be used as examples of lubricants may include, for example, polyvinyl alcohols, high melt flow index of polypropylene, polyethylene and the like.

不管是否从聚合物熔融流40的表面41除去润滑剂42,润滑剂42都可用作淬火剂,以提高聚合物熔融流40冷却的速率。 Whether from the polymer melt stream 41 to remove the lubricant surface 40 42, 42 are used as a hardening agent, a lubricant, in order to improve the cooling of the melt flow rate of the polymer 40. 这种淬火作用可以有助于在聚合物熔融流40中保持特别需要的结构,如在聚合物熔融流40内的取向。 This hardening effect may contribute to the structure of the polymer melt stream 40 remains special needs, such as the orientation of the polymer melt stream within 40. 为有助于淬火,可以优选的是,例如在足够低以加速淬火加工的温度下将润滑剂42供应至模孔。 To assist in quenching, it may be preferred, for example at a sufficiently low temperature to accelerate the hardening process the lubricant 42 supplied to the die orifice. 在其他情况下,可以依靠使用一些润滑剂来提供蒸发冷却,以增强聚合物熔融流40的淬火。 In other cases, you can rely on using some lubricants to provide evaporative cooling, the polymer melt stream 40 to enhance the quenching. 例如,当用作润滑剂42的矿物油在退出冲模后从聚丙烯(聚合物熔融流)表面蒸发时可使聚丙烯纤维淬火。 For example, make polypropylene fiber quenching when used as a lubricant mineral oil 42 after exiting the die (the polymer melt stream) Surface evaporation from polypropylene.

本发明可以优选地依靠润滑剂材料和挤出的聚合物间的粘度差。 The present invention may preferably rely viscosity of the lubricant and extruded polymer material difference between. 聚合物与润滑剂的粘度比例如为40∶1或更高,或50∶1或更高,可以优选地用作选择用于本发明方法中的润滑剂的重要因素。 Ratio of polymer viscosity lubricant such as a 40:1 or higher, or 50:1 or more, can be preferably used as an important factor in selecting the method of the present invention is used in lubricants. 润滑剂化学行为相对于其流变行为是次要的。 Lubricants chemical behavior relative to its rheological behavior is secondary. 在这一点上,材料如SAE 20重量的油,白石蜡油,和聚二甲基硅氧烷(PDMS)流体都是可能适合的润滑剂材料的例子。 In this regard, materials such as SAE 20 weight oil, wax Whitehead examples, and polydimethylsiloxane (PDMS) fluid are potentially suitable lubricant materials. 下列物质不意图限制候选润滑剂,即其他材料也可用作本发明的润滑剂。 The following materials are not intended to limit the candidate lubricant, i.e., other materials may be used as the lubricant of the present invention.

无机或合成油的非限制性例子可以包括矿物油,矿脂,直链和支链烃(及其衍生物),液体石蜡和低熔点固体石蜡,甘油的脂肪酸酯,聚乙烯蜡,烃蜡,褐煤蜡,酰胺蜡,甘油单硬脂酸酯等。 Non-limiting examples of inorganic or synthetic oils may include mineral oil, petrolatum, straight and branched chain hydrocarbons (and derivatives thereof), liquid paraffin, and low melting solid paraffin, fatty acid esters of glycerol, polyethylene waxes, hydrocarbon waxes , montan wax, amide wax, glycerol monostearate and the like.

多种油及其脂肪酸衍生物也是本发明适用的润滑剂。 A variety of oils and fatty acid derivatives of the present invention is also applicable lubricant. 可以使用油的脂肪酸衍生物,如但不限于油酸、亚油酸和月桂酸。 Fatty acid derivatives of oils can be used, such as, but not limited to, oleic acid, linoleic acid, and lauric acid. 还可以使用取代的油的脂肪酸衍生物,如但不限于,油酰胺,油酸丙酯和油醇(可以优选的是,这种材料的挥发性不会高到在挤压前蒸发)。 May also be used derivatives substituted fatty oils, such as but not limited to, oleamide, propyl oleate and oleyl alcohol (it may be preferred that the volatility of such materials is not so high as to evaporate before extrusion). 一些可能适合的植物油的例子可以包括但不限于杏仁油、鳄梨油、猴面包树油、穗醋栗油、金盏花油、大麻油、菜籽油、大风子油、椰子油、玉米油、棉子油、葡萄籽油、榛子油、杂交葵花子油、加氢椰子油、加氢棉子油、加氢棕榈仁油、加州希蒙得木油、猕猴桃籽油、夏威夷核油、澳洲坚果油、芒果核油、白芒花籽油、墨西哥罂粟油、橄榄油、棕榈仁油、部分加氢的大豆油、桃仁油、花生油、山核桃油、阿月浑子核油、南瓜子油、奎奴亚藜油、油菜籽油、米糠油、红花油、油茶油、沙棘油、芝麻油、牛油果油、水蒜芥籽油、大豆油、葵花子油、胡桃油和麦芽油。 Some possible examples of suitable vegetable oils include, but are not limited to, almond oil, avocado oil, baobab oil, currant oil, calendula oil, sesame oil, canola oil, high winds seed oil, coconut oil, corn oil , cotton seed oil, grape seed oil, hazelnut oil, hybrid sunflower oil, hydrogenated coconut oil, hydrogenated cottonseed oil, hydrogenated palm kernel oil, jojoba oil, kiwi seed oil, kukui nut, macadamia nuts oil, mango kernel oil, meadowfoam seed oil, Mexican poppy oil, olive oil, palm kernel oil, partially hydrogenated soybean oil, peach kernel oil, peanut oil, pecan oil, pistachio kernel oil, pumpkin seed oil, quinoa oil, rapeseed oil, rice bran oil, safflower oil, camellia oil, sea buckthorn oil, sesame oil, avocado oil, water, garlic, mustard seed oil, soybean oil, sunflower oil, walnut oil and wheat germ oil.

其他可能适合的润滑剂材料可以包括例如饱和脂肪酸,包括己酸,辛酸,癸酸,十一烷酸,月桂酸,肉豆蔻酸,棕榈酸和硬脂酸,不饱和脂肪酸,包括油酸和芥酸,芳香酸,包括苯甲酸,苯基硬脂酸,聚硬脂酸和二甲苯基二十二烷酸,和其他酸包括平均链长度为6,9,和11个碳的支链羧酸,塔罗油酸和松香酸,饱和伯醇,包括1-辛醇,壬基醇,癸醇,1-癸醇,1-十二烷醇,十三烷醇,十六烷醇和1-十七烷醇,不饱和伯醇,包括十一烯醇和油醇,仲醇,包括2-辛醇,2-十一醇,二壬基甲醇和二(十一烷基)甲醇,和芳香族醇,包括1-苯基乙醇,1-苯基-1-戊醇,壬基苯基,苯基硬脂醇和1-萘酚。 Other potentially suitable materials may include lubricants such as saturated fatty acids include caproic acid, caprylic acid, capric acid, undecanoic acid, lauric acid, myristic acid, palmitic acid and stearic acid, unsaturated fatty acids, including oleic acid and mustard acids, aromatic acids, benzoic acid, phenyl stearic acid, polyvinyl stearate and xylyl behenic acid, and other acid comprises an average chain length of 6,9, and 11 carbon branched chain carboxylic acids Tarot oleic acid and rosin acids, saturated primary alcohols include 1-octanol, nonyl alcohol, decyl alcohol, 1-decanol, 1-dodecanol, tridecyl alcohol, cetyl alcohol and 1-ten seven alcohol, an unsaturated primary alcohols, including eleven alcohol and oleyl alcohol, secondary alcohols including 2-octanol, 2- undecanol, dinonyl methanol and dimethyl (undecyl) of methanol, and the aromatic alcohol , include 1-phenylethanol, 1-phenyl-1-pentanol, nonyl, phenyl stearyl alcohol and 1-naphthol. 其他可能有用的含羟基化合物可以包括油醇的聚氧化乙烯醚和数均分子量约400的聚丙二醇。 Polyoxyethylene ethers and several other potentially useful hydroxyl-containing compound may include oleyl alcohol-average molecular weight of about 400 polypropylene glycol. 其他有用的液体可以包括环醇,如4-、叔-丁基环己醇和甲醇,醛,包括水杨醛,伯胺,如辛胺,十四烷基胺和十六烷基胺,仲胺,如双-(1-乙基-3-甲基戊基)胺,和乙氧基化的胺,包括N-月桂基二乙醇胺,N-牛油基二乙醇胺,N-硬脂基二乙醇胺和N-可可基二乙醇胺。 Other useful liquids may include cyclic alcohols, such as 4-tert - butyl cyclohexanol and methanol, aldehydes including salicyl aldehyde, primary amines such as octylamine, tetradecylamine and hexadecylamine, secondary amines, e.g. bis - (1-ethyl-3-methylpentyl) amine, and ethoxylated amines including N- lauryl diethanolamine, N- tallow diethanolamine, N- stearyl diethanolamine and N - cocoyl diethanolamine.

其他可能有用的润滑剂材料可以包括芳香族胺,如N-仲丁基苯胺,十二烷基苯胺,N,N-二甲基苯胺,N,N-二乙基苯胺,p-甲苯胺,N-乙基-o-甲苯胺,二苯基胺和氨基二苯基甲烷,二胺,包括N-芥酸基-1,3-丙二胺和1,8-二氨基-p-甲烷,其他胺,包括支链的四胺和环癸基胺,酰胺,包括可可酰胺,氢化牛油酰胺,十八烷基酰胺,芥酸酰胺,N,N-二乙基甲苯酰胺和N-三羟甲基丙烷硬脂酰胺,饱和脂肪酯,包括辛酸甲酯,月桂酸乙酯,肉桂酸异丙酯,棕榈酸乙酯,棕榈酸异丙酯,硬脂酸甲酯,硬脂酸异丁酯和硬脂酸十三烷基酯,不饱和酯,包括丙烯酸硬脂基酯,十一碳烯酸丁酯和油酸丁酯,烷氧基酯,包括硬脂酸丁氧基乙基酯和油酸丁氧基乙基酯,芳香族酯,包括硬脂酸乙烯基苯基酯,硬脂酸异丁基苯基酯,硬脂酸十三烷基苯基酯,苯甲酸甲酯,苯甲酸乙酯,苯甲酸丁酯,苯甲酸苄基酯,月桂酸苯基酯,水杨酸苯基酯,水杨酸甲基酯和乙酸苄基酯,和二酯,包括二硬脂酸二甲基亚苯基酯,邻苯二甲酸二乙酯,邻苯二甲酸二丁酯,邻苯二甲酸二异辛酯,己二酸二癸酯,癸二酸二丁酯,癸二酸二己酯,癸二酸二异辛酯,癸二酸二癸酯和马来酸二辛酯。 Other potentially useful lubricant materials may include aromatic amines such as N- sec-butyl aniline, dodecylaniline, N, N- dimethylaniline, N, N- diethylaniline, p- toluidine, N- ethyl -o- toluidine, diphenylamine and diaminodiphenylmethane, diamines, including N- erucic-1,3-propanediamine and 1,8-diamino -p- methane, Other amines including branched and cyclic tetraamine decyl amine, amide, including cocamide, hydrogenated tallow amide, stearyl amide, erucic acid amide, N, N- diethyl toluamide and N- bayerite methyl propane stearamide, saturated fatty esters, including octyl acetate, ethyl laureate, cinnamic acid, isopropyl palmitate, ethyl, isopropyl palmitate, methyl stearate, isobutyl and tridecyl stearate, unsaturated esters including stearyl acrylate, butyl undecylenate and butyl oleate, alkoxy esters including butoxyethyl stearate ester and butoxyethyl oleate esters, aromatic esters including vinyl phenyl stearate, isobutyl stearate, phenyl stearate, tridecyl benzene ester, benzoate, benzene Ethyl benzoate, butyl, benzyl benzoate, phenyl laurate, phenyl salicylate, methyl salicylate and benzyl acetate esters, and diesters, comprising two distearate methylphenylenediamine phthalate, diethyl phthalate, dibutyl phthalate, di-ethylhexyl adipate, didecyl phthalate, dibutyl sebacate, sebacate ethylhexyl sebacate isooctyl, decyl sebacate and dioctyl maleate. 其他可能有用的润滑剂材料可以包括含有聚乙二醇的聚乙二醇酯(优选数均分子量约400),二苯基硬脂酸酯,包括蓖麻油的多羟基酯(甘油三酸酯),单硬脂酸甘油酯,单油酸甘油酯,二硬脂酸二醇酯,甘油二油酸酯和三羟甲基丙烷单苯基硬脂酸酯,醚,包括二苯基醚和苄基醚,卤化的化合物,包括六氯环戊二烯,八溴联苯,十溴二苯基氧化物和4-溴二苯基醚,烃,包括1-壬烯,2-壬烯,2-十一碳烯,2-十七碳烯,2-十九碳烯,3-二十碳烯,9-十九碳烯,二苯基甲烷,三苯基甲烷和反式-二苯乙烯,脂肪族酮,包括2-庚酮,甲基壬基酮,6-十一酮,甲基十一烷基酮,6-十三酮,8-十五酮,11-十五酮,2-十七酮,8-十七酮,甲基十七烷基酮,二壬基酮和二硬脂基酮,芳香族酮,包括苯乙酮和苯甲酮,和其他酮,包括呫吨酮。 Other potentially useful lubricant materials may include polyethylene glycol comprising polyethylene glycol (preferably having a number average molecular weight of about 400), diphenyl stearates, polyol esters including castor oil (triglyceride) , glyceryl monostearate, glyceryl monooleate, glycol distearate, glyceryl dioleate and trimethylolpropane monostearate monophenyl ether, diphenyl ether and benzyl including ethers, halogenated compounds, including hexachlorocyclopentadiene, octabromodiphenyl, decabromodiphenyl oxide and 4-bromo diphenyl ether, hydrocarbon, including 1-nonene, 2-nonene, 2 - undecene, 2-heptadecene, 2- nineteen carbon alkenyl, 3- eicosene, 9-nineteen carbene, diphenylmethane, triphenylmethane and trans - stilbene , aliphatic ketones including 2-heptanone, methyl nonyl ketone, 6-undecanone, methylundecyl ketone, 6-tridecanone, 8- fifteen ketone, 11- fifteen ketone, 2 - seventeen -one, 8- seventeen ketone, methyl heptadecyl ketone, dinonyl ketone and distearyl ketone, aromatic ketones, including acetophenone and benzophenone and other ketones including xanthene one. 其他可能有用的润滑剂可以包括磷化合物,包括磷酸三(亚二甲苯基)酯,聚硅氧烷,Muget hyacinth(An Merigenaebler,Inc),Terpineol Prime No.1(Givaudan-Delawanna,Inc),Bath Oil Fragrance#5864K(InternationalFlavor & Fragrance,Inc),Phosclere P315C(有机亚磷酸酯),PhosclereP576(有机亚磷酸酯),苯乙烯化的壬基苯酚,喹啉和quinalidine。 Other potentially useful lubricants may include phosphorous compounds including tris (xylylene) esters, polysiloxanes, Muget hyacinth (An Merigenaebler, Inc), Terpineol Prime No.1 (Givaudan-Delawanna, Inc), Bath Oil Fragrance # 5864K (InternationalFlavor & amp; Fragrance, Inc), Phosclere P315C (organophosphite), PhosclereP576 (organophosphite), styrenated nonyl phenol, quinoline and quinalidine.

可以使用具有乳化剂性质的油作为润滑剂材料,例如但不限于牛蹄油、印度楝树籽油、PEG-5加氢蓖麻油、PEG-40加氢蓖麻油、PEG-20加氢蓖麻油异硬脂酸酯、PEG-40加氢蓖麻油异硬脂酸酯、PEG-40加氢蓖麻油月桂酸酯、PEG-50加氢蓖麻油月桂酸酯、PEG-5加氢蓖麻油三异硬脂酸酯、PEG-20加氢蓖麻油三异硬脂酸酯、PEG-40加氢蓖麻油三异硬脂酸酯、PEG-50加氢蓖麻油三异硬脂酸酯、PEG-40加州希蒙得木油、PEG-7橄榄油、PPG-3加氢蓖麻油、PPG-12-PEG-65羊毛脂油、加氢貂油、加氢橄榄油、羊毛脂油、马来酸化的大豆油、麝香玫瑰油、腰果油、蓖麻油、犬蔷薇果油、鸸鹋油、夜来香油和荠蓝籽油(gold ofpleasure oil)。 Can be used with oil as a lubricant material emulsifier properties, such as, but not limited to, neatsfoot oil, neem seed oil, PEG-5 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-20 hydrogenated castor oil isostearate, PEG-40 hydrogenated castor oil isostearate, PEG-40 hydrogenated castor oil laurate, PEG-50 hydrogenated castor oil laurate, PEG-5 hydrogenated castor oil triisostearate stearate, PEG-20 hydrogenated castor oil triisostearate, PEG-40 hydrogenated castor oil triisostearate, PEG-50 hydrogenated castor oil triisostearate, PEG-40 jojoba oil, PEG-7 olive oil, PPG-3 hydrogenated castor oil, PPG-12-PEG-65 lanolin oil, hydrogenated mink oil, hydrogenated olive oil, lanolin oil, maleated soybean oil musk rose oil, cashew nut oil, castor oil, dog rose hips oil, emu oil, evening primrose oil and camelina oil (gold ofpleasure oil).

测试方法质量流速:通过基本重力法测量质量流速。 Mass flow rate test method: measuring the mass flow rate through the basic law of gravity. 在80秒内将退出的挤出物收集在预称重的铝盘中。 Within 80 seconds to exit the extrudate was collected in pre-weighed aluminum pan. 测量总重和盘重量的差(按克计),在表1中记录为克/分钟。 Measuring the difference between the total weight and the weight of the disc (in grams), recorded as g / min in Table 1 below.

熔流指数(MFI):对于给定聚合物类型在ASTM D1238规定的条件下测量聚合物的熔流指数。 The melt flow index (MFI): For a given type of polymer melt flow index of the polymer measured under the conditions specified in ASTM D1238.

实施例1使用与图5所示相似的装置制造聚合纤维。 Figure 5 is similar to an apparatus used in Example 1 and Figure implement polymeric fibers. 使用图6所示的单孔冲模。 Use single hole die shown in Figure 6. 模孔是圆形的,入口直径为1.68mm,出口直径为0.76mm,长度为12.7mm,具有以下公式定义的半双曲线形状:rz=[0.00140625/((0.625*z)+0.0625)]^0.5 (9)其中z是从入口测量的沿孔的轴的位置,和rz是位置z处的半径。 Die orifice is circular, the inlet diameter 1.68mm, outlet diameter of 0.76mm, a length of 12.7mm, having a semi-hyperbolic shape defined by the following equation: rz = [0.00140625 / ((0.625 * z) +0.0625)] ^ 0.5 (9) where z is measured from a position along the axis of the inlet hole, and and rz is the radius at the position z.

用使用套筒温度分布为177℃-232℃-246℃的3.175cm单螺杆挤出机(30∶1L/D)和设置在19.1RPM转速下的ZENITH管道齿轮泵(1.6立方厘米/转(cc/rev))挤出聚丙烯均聚物(FINAPRO 5660,9.0MFI,Atofina Petrochemical Co.,Houston,TX)。 Use a socket with a temperature profile of 177 ℃ -232 ℃ -246 ℃ of 3.175cm single-screw extruder (30:1L / D) and set the speed at 19.1RPM pipeline ZENITH gear pump (1.6 cm3 / revolution (cc / rev)) extruding polypropylene homopolymer (FINAPRO 5660,9.0MFI, Atofina Petrochemical Co., Houston, TX). 冲模温度和熔融温度约220℃。 Die temperature and melt temperature of about 220 ℃. Chevron SUPERLA白矿物油#31作为润滑剂,使用设置在30RPM转速下的第二ZENITH齿轮泵(0.16cc/rev)将其供应到冲模的入口。 Chevron SUPERLA # 31 white mineral oil as a lubricant, use the settings in the rotational speed of 30RPM second ZENITH gear pump (0.16cc / rev) to be supplied to the inlet of the die.

熔融聚合物压力和挤出物的相应质量流速列于下表1中。 The molten polymer pressure and corresponding mass flow rate of the extrudate are shown in Table 1 below. 聚合物用的压力传感器就在冲模上方的给油套管中,并在那里将聚合物引入冲模。 Pressure sensor polymer used in the oil casing to the top of the die, and where the polymer is introduced into the die. 在引入润滑剂之前,其压力传感器位于润滑剂输送管线中。 Before the introduction of the lubricant, the lubricant pressure sensor is located in the transfer line. 也对未使用润滑剂的对照样品进行实验。 Also unused control sample lubricant experiment.

实施例2按实施例1制造聚合纤维,除了使用与图2所示相似的冲模。 Example 2 Example 1 producing polymeric fibers embodiment, except that a die similar to that shown in Fig. 模孔具有圆形轮廓,入口直径为6.35mm,出口直径为0.76mm,长度为10.16mm,具有上述公式(8)定义的半双曲线形状。 Die orifice having a circular profile, the inlet diameter 6.35mm, an exit diameter of 0.76mm, a length of 10.16mm, having the above formula (8) defines a semi-hyperbolic shape.

有或没有润滑剂时的熔融聚合物压力和挤出物的质量流速如下表1所示。 With or without the molten polymer mass lubricant pressure and flow rate of the extrudate as shown in Table 1 below.

实施例3按实施例1制造聚合纤维,除了使用图2所示的冲模。 Example 3 Example 1 was manufactured polymeric fibers embodiment, in addition to using a die shown in Figure 2. 模孔具有圆形轮廓,入口直径为6.35mm,出口直径为0.51mm,长度为12.7mm,具有公式(8)定义的半双曲线形状。 Die orifice having a circular profile, the inlet diameter 6.35mm, outlet diameter of 0.51mm, a length of 12.7mm, having the formula (8) defines a semi-hyperbolic shape.

使用聚氨酯(PS440-200 Huntsman Chemical,Salt Lake City,UT)形成纤维。 Polyurethane (PS440-200 Huntsman Chemical, Salt Lake City, UT) to form a fiber. 用使用套筒温度分布为177℃-232℃-246℃的3.81cm单螺杆挤出机(30∶1L/D)和设置在19.1RPM转速下的ZENITH管道齿轮泵(1.6cc/rev)输送聚合物。 Use a socket with a temperature profile of 177 ℃ -232 ℃ -246 ℃ of 3.81cm single-screw extruder (30:1L / D) and set the speed at 19.1RPM pipeline ZENITH gear pump (1.6cc / rev) transport polymerization thereof. 冲模温度和熔融温度约215℃。 Die temperature and melt temperature of about 215 ℃. ChevronSUPERLA白矿物油#31作为润滑剂,分别通过设置在99RPM和77RPM转速下的两个串联齿轮泵将其供应到冲模的入口。 ChevronSUPERLA White Mineral Oil # 31 as the lubricant, were set up in two series by a gear pump speed of 99RPM and 77RPM under its supply to the inlet of the die. 熔融聚合物压力和挤出物的质量流速如下表1所示。 The molten polymer pressure and mass flow rate of the extrudate as shown in Table 1 below. 也对未使用润滑剂的对照样品进行实验。 Also unused control sample lubricant experiment.

表1 Table 1

表1表明在相似的熔融压力下,使用本发明方法(实施例1)得到基本上较高的质量流速,在相似质量流速下,可以明显较低的压力(实施例2)下挤出聚合物。 Table 1 shows the extruded polymer melt under similar pressure, using the method of the present invention (Example 1) was substantially higher mass flow rate, mass flow rate at a similar, can significantly lower pressures (Example 2) . 如实施例3所示,当使用本发明方法时,熔融压力明显降低,同时质量流速基本上增加。 As in Example 3, when using the method of the present invention, the melt pressure was significantly reduced, while the mass flow rate is substantially increased.

本文中和在所附权利要求中,除非上下文另有所指,单数形式“一种(a)”、“一种(an)”和“该(the)”包括复数。 As used herein and in the appended claims, unless the context otherwise requires, the singular forms "one kind of (a)", "one kind of (an)" and "the (the)" include plural. 因此,例如“一种纤维”可以包括多种纤维,“该孔”可以包括一个或多个孔和本领域所属技术人员公知的其等同物。 Thus, for example, "A fiber" may comprise a plurality of fibers, "the aperture" may include one or more apertures and this is known to those skilled equivalents thereof.

讨论了本发明的说明性实施方案,可以在本发明的范围内做出可能的变化。 It discusses the illustrative embodiment of the present invention may be made possible variations within the scope of the invention. 本领域所属技术人员显然可以在本发明的范围内做出本发明的这些和其他变化和修改,应该理解本发明不限于所述的实施方案。 The skilled in the art will be apparent to these and other variations and modifications of the invention within the scope of the present invention, it should be understood that embodiments of the present invention is not limited to the above. 因此,本发明仅由所附权利要求及其等同物限制。 Accordingly, the present invention is limited only by the appended claims and the equivalents thereof.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
CN103046305A *18 Dec 201217 Apr 2013苏州展华纺织有限公司Synthetic fabric punching device
CN103046305B *18 Dec 20128 Apr 2015吴江市元通纺织品有限公司Synthetic fabric punching device
Classifications
International ClassificationD01D5/096, D01D4/02, D01D1/06
Cooperative ClassificationD01D5/096, D01D1/065, D01D4/02, Y10T428/29, Y10T428/2913
European ClassificationD01D1/06B, D01D4/02, D01D5/096
Legal Events
DateCodeEventDescription
2 May 2007C06Publication
27 Jun 2007C10Request of examination as to substance
13 Jun 2012C14Granted