CN104861596A - High-property polyester alloy material and preparation method thereof - Google Patents

High-property polyester alloy material and preparation method thereof Download PDF

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Publication number
CN104861596A
CN104861596A CN201510312649.1A CN201510312649A CN104861596A CN 104861596 A CN104861596 A CN 104861596A CN 201510312649 A CN201510312649 A CN 201510312649A CN 104861596 A CN104861596 A CN 104861596A
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China
Prior art keywords
polyester alloy
pet
performance polyester
pbt
ester exchange
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Pending
Application number
CN201510312649.1A
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Chinese (zh)
Inventor
陈宇
辛菲
李明
杨溢锴
崔正
韩晓意
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BEIJING HUATENG HIGHTECH Co Ltd
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BEIJING HUATENG HIGHTECH Co Ltd
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Priority to CN201510312649.1A priority Critical patent/CN104861596A/en
Publication of CN104861596A publication Critical patent/CN104861596A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a high-property polyester alloy material and a preparation method thereof, and belongs to the technical field of high polymer materials. The high-property polyester alloy material comprises the following components in parts by weight: 5-90% of poly butylene tertephehalate, 5-90% of polyethylene glycol terephthalate, 0.5-10% of an ester exchange inhibitor, 0.5-5% of an antioxidant and 0.5-5% of a lubricant. Compared with the prior art, the high-property polyester alloy material disclosed by the invention is relatively good in mechanical property, and has the characteristics of relatively high tensile strength, high bending strength and good processing and forming property.

Description

A kind of high-performance poly ester alloy material and preparation method thereof
Technical field
The present invention relates to one and there is high-performance poly ester alloy material and preparation method thereof, belong to the technical field of macromolecular material.
Background technology
Polyethylene terephthalate (PET) and polybutylene terephthalate (PBT) are conventional engineering plastics, both all has excellent mechanical property, heat-resisting, corrosion-resistant, weathering resistance and electrical insulating property and lower frictional coefficient, bigger difference in the two performance is that PET crystallization rate is comparatively slow, the crystallization rapidly of PBT energy; PET and PBT is blended, from application, the base mateiral that the property modification such as in these two structures, the most close homologue can realize the complementation of both sides' performance by alloying, is ensuing fiberglass reinforced, fire-retardant provide.
Describe PET/ polyester alloy and preparation method thereof that a kind of heat conducting fiber strengthens in the patent of current announcement in Chinese Patent Application No. CN201410266869.0, obtain by twin screw extruder the PET/ polyester alloy that heat conducting fiber strengthens by PET and polyester and heat conducting fiber.
Describe a kind of low warpage carbon fiber reinforced PC T-polyester alloy and preparation method thereof in Chinese Patent Application No. CN201410172491.8, obtain low warpage carbon fiber reinforced PC T-polyester alloy by PCT and polyester and carbon fiber by twin screw extruder.
Describe a kind of thermoplastic polyester alloy nano composite material and preparation method thereof in Chinese Patent Application No. CN201310306825.1, obtain a kind of thermoplastic polyester alloy nano composite material by PBT and PET and nanoparticle by twin screw extruder.
The mode that each patent of invention is used above mainly adopts to add various fiber or add compatilizer etc. and obtains the different polyester alloy of performance.
Summary of the invention
The object of the invention is: adopt PBT, PET resin, utilize the consistency of homologue polyester self the most close in these two kinds of structures, when not adding compatilizer by adding ester exchange inhibitor, avoiding the performance loss that can bring due to transesterification reaction; Adopt melt blending and the preparation of injection molding method to have high performance polyester alloy, reduce production cost, expanded application scope, to overcome the deficiencies in the prior art.
Technical scheme of the present invention is: a kind of high-performance polyester alloy, counts by weight percentage, and composition and the content of its raw material are as follows: PET is 5-90%, PBT is 5-90%, and ester exchange inhibitor is 0.5-10%, oxidation inhibitor 0.5-5%, lubricant 0.5-5%.
Described PET is polyethylene terephthalate, and limiting viscosity (25 DEG C) is 0.6-1.0dl/g.
Described PBT is polybutylene terephthalate, and limiting viscosity (25 DEG C) is 0.7-1.2dl/g.
Described ester exchange inhibitor is the one in triphenylphosphate, triphenyl phosphite, SODIUM PHOSPHATE, MONOBASIC, Sodium phosphate dibasic etc.; When preferred PET raw material composition is greater than 60%, select triphenylphosphate or triphenyl phosphite as ester exchange inhibitor; When PBT raw material composition is greater than 60%, select SODIUM PHOSPHATE, MONOBASIC or Sodium phosphate dibasic as ester exchange inhibitor.
Described oxidation inhibitor is that phosphite ester kind antioxidant (as irgasfos 168) or Hinered phenols are (as oxidation inhibitor
1010) one or more.
Described lubricant is the mixture of one or more compositions of polyethylene wax, oxidized polyethlene wax, Poly Propylene Wax or epoxy terminated lower molecular weight (800-1800) polyolefin-wax.
The preparation method of above-mentioned a kind of high-performance polyester alloy, specifically comprises the following steps:
(1) by for subsequent use after above-mentioned various dry materials;
(2) PET, PBT, ester exchange inhibitor, oxidation inhibitor and lubricant are put into high-speed mixer and mixing 5-10 minute, then added by twin screw extruder feeding section;
(3) rotating speed controlling twin screw extruder is 150-500 rev/min, and temperature is 120-265 DEG C and carries out extruding pelletization, obtains high-performance polyester alloy.
(4) polyester alloy particle is adopted injection moulding machine injection molding, injection temperature is 230-280 DEG C.
A kind of high-performance polyester alloy of the present invention, owing to adopting ester exchange inhibitor in preparation process, inhibit the transesterification reaction between two kinds of polyester, optimize the overall performance of material, make it have good mechanical property, technique is simple, easy to operate, shaping cycle is short, and outward appearance is good, is with a wide range of applications.
Embodiment
Below in conjunction with implementing, the present invention will be further described, but the present invention is not limited to following examples.
Described PET is polyethylene terephthalate, and preferred characteristics viscosity (25 DEG C) is 0.6-1.0dl/g;
Described PBT is polybutylene terephthalate, and preferred characteristics viscosity (25 DEG C) is 0.7-1.2dl/g;
Embodiment 1 is by 10g polyethylene wax dried in advance, 60g SODIUM PHOSPHATE, MONOBASIC, 20g antioxidant (1010:168=1:1), 1146g PBT and 764g PET puts into high speed mixer mixing 5 minutes, mix rear employing twin screw extruder extruding pelletization, twin screw extruder each section of temperature is respectively: 210 DEG C, 220 DEG C, 235 DEG C, 240 DEG C, 240 DEG C, 230 DEG C, 220 DEG C; Rotating speed is 300 revs/min.The product particle obtained at 110 DEG C dry 4 hours.Dried polyester alloy particle passes through injection injection molding, injection temperature 245 DEG C.
Embodiment 2 is by 10g Poly Propylene Wax dried in advance, 60g triphenylphosphate, 20g antioxidant (1010:168=1:1), 382g PBT and 1528g PET puts into high speed mixer mixing 5 minutes, mix rear employing twin screw extruder extruding pelletization, twin screw extruder each section of temperature is respectively 220 DEG C, 240 DEG C, 250 DEG C, 250 DEG C, 250 DEG C, 240 DEG C, 220 DEG C; Rotating speed is 300 revs/min.The product particle obtained at 110 DEG C dry 4 hours.Dried polyester alloy particle passes through injection injection molding, injection temperature 275 DEG C.
Embodiment 3 is by 10g polyethylene wax dried in advance, 60g SODIUM PHOSPHATE, MONOBASIC, 20g antioxidant (1010:168=1:1), 1146g PBT and 764g PET puts into high speed mixer mixing 5 minutes, mix rear employing twin screw extruder extruding pelletization, twin screw extruder each section of temperature is respectively 210 DEG C, 220 DEG C, 235 DEG C, 240 DEG C, 240 DEG C, 230 DEG C, 220 DEG C; Rotating speed is 300 revs/min.The product particle obtained at 110 DEG C dry 4 hours.Dried polyester alloy particle passes through injection injection molding, injection temperature 245 DEG C.
Embodiment 4 is by 10g polyethylene wax dried in advance, 60g triphenylphosphate, 20g antioxidant (1010:168=1:1), 382g PBT and 1528g PET puts into high speed mixer mixing 5 minutes, mix rear employing twin screw extruder extruding pelletization, twin screw extruder each section of temperature is respectively: 220 DEG C, 240 DEG C, 250 DEG C, 250 DEG C, 250 DEG C, 240 DEG C, 220 DEG C; Rotating speed is 300 revs/min.The product particle obtained at 110 DEG C dry 4 hours.Dried polyester alloy particle passes through injection injection molding, injection temperature 275 DEG C.
Embodiment 5 is by 10g its chlorinated polypropylene wax dried in advance, 100g SODIUM PHOSPHATE, MONOBASIC, 20g antioxidant (1010:168=1:1), 1122g PBT and 748g PET puts into high speed mixer mixing 5 minutes, mix rear employing twin screw extruder extruding pelletization, twin screw extruder each section of temperature is respectively 210 DEG C, 220 DEG C, 235 DEG C, 240 DEG C, 240 DEG C, 230 DEG C, 220 DEG C; Rotating speed is 300 revs/min.The product particle obtained at 110 DEG C dry 4 hours.Dried polyester alloy particle passes through injection injection molding, injection temperature 245 DEG C.
Embodiment 6 is by 10g polyethylene wax dried in advance, 100g triphenylphosphate, 20g antioxidant (1010:168=1:1), 374g PBT and 1496g PET puts into high speed mixer mixing 5 minutes, mix rear employing twin screw extruder extruding pelletization, twin screw extruder each section of temperature is respectively: 220 DEG C, 240 DEG C, 250 DEG C, 250 DEG C, 250 DEG C, 240 DEG C, 220 DEG C; Rotating speed is 300 revs/min.The product particle obtained at 110 DEG C dry 4 hours.Dried polyester alloy particle passes through injection injection molding, injection temperature 275 DEG C.
Detect the tensile strength of the high-performance polyester alloy of above-described embodiment 1-6 gained, flexural strength, modulus in flexure, shock strength, it the results are shown in following table 1:
The mechanical property of the high-performance polyester alloy of table 1 embodiment 1-6 gained
As can be seen from Table 1, relative to existing polyester alloy material, by selecting different ester exchange inhibitor for different polyester ratio, the mechanical property of material can be made to remain on a higher level.
The preparation method of high-performance poly ester alloy material of the present invention, adopts twin screw extrusion process preparation, have flow process simple, continuously, the advantage of high, the constant product quality of production efficiency.High-performance poly ester alloy material of the present invention has certain advantage in price.
Be only several specific embodiments of the application above, but the application is not limited thereto, the improvement of any those skilled in the art on the application basis, all should drops in the protection domain of the application.

Claims (8)

1. a high-performance polyester alloy, is characterized in that, counts by weight percentage, and composition and the content of its raw material are as follows: PET is 5-90%, PBT is 5-90%, and ester exchange inhibitor is 0.5-10%, oxidation inhibitor 0.5-5%, lubricant 0.5-5%.
2. according to a kind of high-performance polyester alloy of claim 1, it is characterized in that, PET is polyethylene terephthalate, and 25 DEG C of limiting viscosities are 0.6-1.0dl/g.
3. according to a kind of high-performance polyester alloy of claim 1, it is characterized in that, PBT is polybutylene terephthalate, and 25 DEG C of limiting viscosities are 0.7-1.2dl/g.
4. according to a kind of high-performance polyester alloy of claim 1, it is characterized in that, ester exchange inhibitor is the one in triphenylphosphate, triphenyl phosphite, SODIUM PHOSPHATE, MONOBASIC, Sodium phosphate dibasic.
5. according to a kind of high-performance polyester alloy of claim 1, it is characterized in that, when PET raw material composition is greater than 60%, select triphenylphosphate or triphenyl phosphite as ester exchange inhibitor; When PBT raw material composition is greater than 60%, select SODIUM PHOSPHATE, MONOBASIC or Sodium phosphate dibasic as ester exchange inhibitor.
6. according to a kind of high-performance polyester alloy of claim 1, it is characterized in that, described oxidation inhibitor is one or more of phosphite ester kind antioxidant or Hinered phenols.
7. according to a kind of high-performance polyester alloy of claim 1, it is characterized in that, described lubricant is the mixture of one or more compositions of polyethylene wax, oxidized polyethlene wax, Poly Propylene Wax or epoxy terminated low-molecular-weight polyolefin wax.
8. prepare any one high-performance polyester alloy approach of claim 1-7, it is characterized in that, specifically comprise the following steps:
(1) by for subsequent use after various dry materials;
(2) PET, PBT, ester exchange inhibitor, oxidation inhibitor and lubricant are put into high-speed mixer and mixing 5-10 minute, then added by twin screw extruder feeding section;
(3) rotating speed controlling twin screw extruder is 150-500 rev/min, and temperature is 120-265 DEG C and carries out extruding pelletization, obtains high-performance polyester alloy;
(4) polyester alloy particle is adopted injection moulding machine injection molding, injection temperature is 230-280 DEG C.
CN201510312649.1A 2015-06-09 2015-06-09 High-property polyester alloy material and preparation method thereof Pending CN104861596A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105237970A (en) * 2015-11-16 2016-01-13 北京华腾新材料股份有限公司 High-strength low-melting-temperature low-warpage PET/PBT alloy and preparation method thereof
CN107383807A (en) * 2017-08-25 2017-11-24 广东壹豪新材料科技股份有限公司 A kind of LCP/PBT/PET ternary-alloy materials and preparation method thereof
CN107400340A (en) * 2017-08-30 2017-11-28 广州辰东新材料有限公司 Polyester composite for nanometer injection and preparation method thereof
CN109971139A (en) * 2019-03-29 2019-07-05 苏州威普达新材料有限公司 A kind of communication equipment PBT-PET modified plastics
CN115895203A (en) * 2022-10-27 2023-04-04 河南天海合聚新材料有限公司 PBT/PET alloy material with high GWIT and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0598136A (en) * 1991-10-03 1993-04-20 Omron Corp Polymer blend
US5496880A (en) * 1993-05-10 1996-03-05 General Electric Company Polymer mixtures and articles formed therefrom
CN1968989A (en) * 2004-07-01 2007-05-23 帝斯曼知识产权资产管理有限公司 Polyester composition comprising polybutylene terephthalate resin
CN102002220A (en) * 2010-12-10 2011-04-06 上海金发科技发展有限公司 Polyester alloy composite material for decorative ring of vehicle lamp and preparation method thereof
CN102108192A (en) * 2009-12-29 2011-06-29 比亚迪股份有限公司 Polyester-containing material, preparation method thereof and vehicle lamp combined decorating frame product

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0598136A (en) * 1991-10-03 1993-04-20 Omron Corp Polymer blend
US5496880A (en) * 1993-05-10 1996-03-05 General Electric Company Polymer mixtures and articles formed therefrom
CN1968989A (en) * 2004-07-01 2007-05-23 帝斯曼知识产权资产管理有限公司 Polyester composition comprising polybutylene terephthalate resin
CN102108192A (en) * 2009-12-29 2011-06-29 比亚迪股份有限公司 Polyester-containing material, preparation method thereof and vehicle lamp combined decorating frame product
CN102002220A (en) * 2010-12-10 2011-04-06 上海金发科技发展有限公司 Polyester alloy composite material for decorative ring of vehicle lamp and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105237970A (en) * 2015-11-16 2016-01-13 北京华腾新材料股份有限公司 High-strength low-melting-temperature low-warpage PET/PBT alloy and preparation method thereof
CN107383807A (en) * 2017-08-25 2017-11-24 广东壹豪新材料科技股份有限公司 A kind of LCP/PBT/PET ternary-alloy materials and preparation method thereof
CN107400340A (en) * 2017-08-30 2017-11-28 广州辰东新材料有限公司 Polyester composite for nanometer injection and preparation method thereof
CN109971139A (en) * 2019-03-29 2019-07-05 苏州威普达新材料有限公司 A kind of communication equipment PBT-PET modified plastics
CN115895203A (en) * 2022-10-27 2023-04-04 河南天海合聚新材料有限公司 PBT/PET alloy material with high GWIT and preparation method thereof

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Application publication date: 20150826