CN102649297A - TPU compound modification production device - Google Patents
TPU compound modification production device Download PDFInfo
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- CN102649297A CN102649297A CN2012101476976A CN201210147697A CN102649297A CN 102649297 A CN102649297 A CN 102649297A CN 2012101476976 A CN2012101476976 A CN 2012101476976A CN 201210147697 A CN201210147697 A CN 201210147697A CN 102649297 A CN102649297 A CN 102649297A
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Abstract
The invention discloses a TPU compound modification production device which comprises a double-screw extruder with a raw material inlet, a pelletizer connected the double-screw extruder, a dewaterer connected with the underwater pelletizer, a drying barrel connected with the dewaterer and provided with a discharge opening at the bottom, and a packing machine connected with the discharge opening of the drying barrel. The raw material inlet is arranged in the front section of the double-screw extruder, and the rear middle section of the double-screw extruder is connected with a compound modification addition agent adding machine. The TPU compound modification production device has the benefit that modified TPU is continuously produced at one step through the device. Not only the problem of TPU degradation caused by high temperature during the secondary machining process can be prevented and the product quality is enhanced, but also time is saved, the production efficiency is improved, the equipment investment is reduced, the production cost is further reduced, simultaneously the machining loss during the secondary machining is avoided, and the volume of production can be also enhanced.
Description
Technical field
The present invention relates to a kind of TPU (TPUE, down together) process units, be specifically related to the composite modified process units of a kind of TPU.
Background technology
TPU is by soft section linear block copolymers that constitutes with vulcabond, the hard section of chain extender of oligomer polyol.It is a characteristic to repeat carbamate groups in molecular composition, contains urea carbamate, biuret, and other groups such as ester bond, ehter bond simultaneously.See from molecular structure, alternately be made up of rigid chain segment and soft segment that wherein rigid chain segment is to be obtained by vulcabond and chain extender reaction, soft segment is then obtained by vulcabond and macromolecular polyol reaction.It is similar with other thermoplastic; Have caoutchouc elasticity and plastic properties under the room temperature, can melt into rheid under the high temperature, can process by injection machine (as extrude, inject, calendering etc.); Need not mixing and aftertreatment technology such as sulfuration grade; But conserve energy, but goods recyclable utilize again and its discarded after natural decomposition, generally belong to environment-friendly materials by comparison with general with plastics (PVC).
TPU is the polyurethane elastomer of heating plasticization, solvents dissolved, and it has the performance of various excellences.As: good, the anti-hydrolysis of comprehensive mechanical performance, antimicrobial erosion performance excellence, grease resistance, heat-resisting, low temperature resistant, chemical resistance is good; Especially anti-wear performance is very outstanding; Hardness range is wide; Flexibility is good, and existing broad hardness range has high resilience again, is that other plastics and rubber are incomparable.After being developed the 1950's, promptly develop into application material very widely rapidly, in auto industry, electric wire, the outdoor activity equipment, communication, footwear material, all there is its product in fields such as application and industrial product.In addition, TPU possesses very broad processability, just use general Polymer Processing equipment that good finished product output can be arranged, as: ejection formation, extrusion modling, prolong molded, spinning, solvent cast etc. and all can.It has very soft to the characteristic that can both adjust extremely firmly, has in many application facet to replace PVC and natural or elastomeric possibility gradually.
Comprehensive, the TPU biggest advantage is the toughness that it is excellent, and abrasion performance and tear resistance, high ventilation the character also utmost point are suitable for chemicals, oil product container.It is following that it is processed into the article main application fields: textile product: clothes, footwear have characteristics such as winter protection, warming, waterproof in the winter time to produce film and sheet applications; Tubing: make the fire extinguisher canvas hose liner, petroleum pipeline, pneumatic hose etc.; Electric wire, cable, cable jacket; Medical sanitary product: like blood transfusion tube, plasma bags, ureter, surgical technic with immobilization material etc.; Machinework and other application: as making automobile component, mechanical bearing, roller, conveyer belt, rubber and plastic screen cloth, industrial sebific duct, packing ring, sealing ring, swimming goggle, surfboard, watchband, animal label, electrical component, coating, adhesive, fiber etc.
General TPU production process is to adopt the double screw extruder continuity method to produce; With polyalcohol, vulcabond and chain extender is primary raw material, under catalysis, under the certain reaction condition; Adopt the double screw rod extruder continuity method to produce; Raw material carries out the pyroreaction polymerization in double screw rod extruder, have higher shear rate gradient can make the material well-mixed between the two screw rods of double screw extruder relative motion, pinches and nibbles fully; Make its reaction evenly, the topical gel phenomenon can not occur.Polymerization is finally carried out finished product packing and is generated TPU after the supercooling granulation dehydrates through the punishment in advance grain again.It can be applicable to injection, extrudes, and blowing, calendering, procedures such as melt spinning are processed into the product of different purposes, and application is just progressively expanded.
TPU has wide range of applications, the consumption sustainable growth, but at composite modified processed and applied technical elements, also exist many problems.Because market is ever-changing, the client has nothing in common with each other for the demand of product, in order to comply with market trend, meets customer need, and must produce the composite modified TPU product of diversified various process.In view of this demand, TPU manufactory need produce modified TPU, as: fire-retardant TPU, the TPU that changes colour, rerum natura strengthens TPU etc., in actual process, all uses the secondary operations mode to produce.That is to say,, carry out secondary operations through single screw rod or double screw extruder again, TPU finished product and additives such as fire retardant, Masterbatch, rerum natura reinforcing agent are mixed in extruder carry out secondary granulation production modified TPU producing good TPU finished product.This processing mode need carry out the secondary operations granulation to the TPU product; Cause the TPU product that Pintsch process takes place when high-temperature fusion is mixed in extruder easily; Cause TPU rerum natura undercapacity after the modification, and secondary operations must used device and increase processing charges, thereby cause cost to increase; For produce the composite modified TPU product that meets market user's demand and possess competitiveness, press for develop a kind of can one the step process the process units of modified TPU.
Summary of the invention
For solving the deficiency of prior art, the object of the present invention is to provide the composite modified process units of a kind of TPU, can directly in the TPU production process, add modified additive, a step continuously produces modified TPU.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
The composite modified process units of TPU; Comprise: the double screw extruder that is provided with the feed(raw material)inlet; It is characterized in that, also comprise: the comminutor that is connected with above-mentioned double screw extruder, the dewaterer that is connected with comminutor in the above-mentioned water; Be connected and be provided with bottom it dry bucket of discharge port with above-mentioned dewaterer, the packing machine that is connected with the discharge port of above-mentioned dry bucket; The above-mentioned raw materials inlet is arranged at the leading portion of double screw extruder, and the posterior segment of above-mentioned double screw extruder is connected with composite modified auxiliary agent adding machine.
The composite modified process units of aforesaid TPU is characterized in that, above-mentioned dry bucket is connected with dehumidifying heat pump, and above-mentioned dehumidifying heat pump is imported dry-heat air and taken moist hot blast wherein out of in dry bucket.
The composite modified process units of aforesaid TPU is characterized in that, above-mentioned dry bucket is provided with the input port of input dry-heat air and the delivery outlet of the moist hot blast of output, and above-mentioned input port is arranged at dry bucket bottom, and above-mentioned delivery outlet is arranged at dry bucket top.
The composite modified process units of aforesaid TPU is characterized in that, above-mentioned input port is connected with dehumidifying heat pump through the dry-heat air pipeline, and above-mentioned delivery outlet is connected with dehumidifying heat pump through moist hot-blast pipe line.
The composite modified process units of aforesaid TPU; It is characterized in that; The feed(raw material)inlet of above-mentioned double screw extruder is provided with the raw material metering mixing system, and above-mentioned raw materials metering mixing system and polyalcohol groove, chain extender groove, the vulcabond groove of getting the raw materials ready of getting the raw materials ready of getting the raw materials ready is connected.
The composite modified process units of aforesaid TPU is characterized in that, all is connected through a material grain transfer pipeline between comminutor and dewaterer in the above-mentioned water, dewaterer and dry bucket, dry bucket and the packing machine.
The composite modified process units of aforesaid TPU is characterized in that, above-mentioned composite modified auxiliary agent adding machine is provided with metering system.
Usefulness of the present invention is: through the composite modified process units of TPU, a step is produced modified TPU continuously, has avoided existing equipment to produce modified TPU and need carry out the variety of problems that secondary operations is brought to the TPU product.Not only can prevent the problem of the TPU degraded that high temperature causes in the secondary processing process, promote the quality of product; And save time, improved production efficiency, reduce the equipment input, and then reduced production cost; Also avoid the processing loss in the secondary operations simultaneously, also can promote output.
Description of drawings
Fig. 1 is the structural representation of a preferred embodiment of the composite modified process units of TPU of the present invention.
The implication of Reference numeral among the figure: 1, double screw extruder, 2, comminutor in the water, 3, dewaterer, 4, dry bucket; 5, packing machine, 6, a material grain transfer pipeline, 7, composite modified auxiliary agent adding machine, 8, dehumidifying heat pump; 9, dry-heat air pipeline, 10, moist hot-blast pipe line, 11, the raw material metering mixing system; 12, the polyalcohol groove of getting the raw materials ready, 13, the chain extender groove of getting the raw materials ready, 14, the vulcabond groove of getting the raw materials ready.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done concrete introduction.
Referring to shown in Figure 1; The composite modified process units of TPU of the present invention comprises: be provided with the double screw extruder 1 of feed(raw material)inlet, with comminutor 2 in the water that double screw extruder 1 is connected; With the dewaterer 3 of comminutor in the water 2 through expecting that grain transfer pipeline 6 is connected; With the dry bucket 4 that dewaterer 3 is connected through material grain transfer pipeline 6, the bottom of dry bucket 4 is provided with discharge port, and discharge port is connected through material grain transfer pipeline 6 with packing machine 5.
Wherein, the feed(raw material)inlet of double screw extruder 1 is arranged on leading portion, processes modified TPU continuously in order to realize a step, is connected with composite modified auxiliary agent adding machine 7 in the posterior segment of double screw extruder 1.As a kind of preferred, composite modified auxiliary agent adding machine 7 also is provided with metering system, joins the amount of the modified additive in the double screw extruder 1 with control.
For effectively to product dehumidify, drying, dry bucket 4 is connected with dehumidifying heat pump 8, its principle is an input dry-heat air and take moist hot blast wherein out of in dry bucket 4, thereby realizes dry products.
As a kind of preferred, dry bucket 4 is provided with the input port of input dry-heat air and the delivery outlet of the moist hot blast of output, and the input port is arranged at dry bucket 4 bottoms, and delivery outlet is arranged at dry bucket 4 tops.The input port is connected with dehumidifying heat pump 8 through dry-heat air pipeline 9, and above-mentioned delivery outlet is connected with dehumidifying heat pump 8 through moist hot-blast pipe line 10.So, dry-heat air gets into from the input port of bottom, can accelerate rate of drying.
In process of production, carry out the pyroreaction polymerization through raw material being placed double screw extruder 1, two screw rods of double screw extruder 1 relative motion have the high shear rates gradient can make the reaction of material well-mixed evenly.We said the front, were provided with the feed(raw material)inlet at the leading portion of double screw extruder 1, and as a kind of preferred, this place also is provided with raw material metering mixing system 11, with the material's proportion of control entering double screw extruder 1.
Further, in order to improve the convenience of operation, raw material metering mixing system 11 and polyalcohol groove 12, chain extender groove 13, the vulcabond groove 14 of getting the raw materials ready of getting the raw materials ready of getting the raw materials ready is connected.
More than show and described basic principle of the present invention, principal character and advantage.The technical staff of the industry should understand, and the foregoing description does not limit the present invention in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drop in protection scope of the present invention.
Claims (7)
1.TPU composite modified process units; Comprise: the double screw extruder that is provided with the feed(raw material)inlet; It is characterized in that, also comprise: with comminutor in the water that above-mentioned double screw extruder is connected, the dewaterer that is connected with comminutor in the above-mentioned water; Be connected and be provided with bottom it dry bucket of discharge port with above-mentioned dewaterer, the packing machine that is connected with the discharge port of above-mentioned dry bucket; The above-mentioned raw materials inlet is arranged at the leading portion of double screw extruder, and the posterior segment of above-mentioned double screw extruder is connected with composite modified auxiliary agent adding machine.
2. the composite modified process units of TPU according to claim 1 is characterized in that, above-mentioned dry bucket is connected with dehumidifying heat pump, and above-mentioned dehumidifying heat pump is imported dry-heat air and taken moist hot blast wherein out of in dry bucket.
3. the composite modified process units of TPU according to claim 2; It is characterized in that; Above-mentioned dry bucket is provided with the input port of input dry-heat air and the delivery outlet of the moist hot blast of output, and above-mentioned input port is arranged at dry bucket bottom, and above-mentioned delivery outlet is arranged at dry bucket top.
4. the composite modified process units of TPU according to claim 3 is characterized in that, above-mentioned input port is connected with dehumidifying heat pump through the dry-heat air pipeline, and above-mentioned delivery outlet is connected with dehumidifying heat pump through moist hot-blast pipe line.
5. the composite modified process units of TPU according to claim 1; It is characterized in that; The feed(raw material)inlet of above-mentioned double screw extruder is provided with the raw material metering mixing system, and above-mentioned raw materials metering mixing system and polyalcohol groove, chain extender groove, the vulcabond groove of getting the raw materials ready of getting the raw materials ready of getting the raw materials ready is connected.
6. the composite modified process units of TPU according to claim 1 is characterized in that, all is connected through a material grain transfer pipeline between comminutor and dewaterer in the above-mentioned water, dewaterer and dry bucket, dry bucket and the packing machine.
7. according to the composite modified process units of each described TPU of claim 1-6, it is characterized in that above-mentioned composite modified auxiliary agent adding machine is provided with metering system.
Priority Applications (1)
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| CN2012101476976A CN102649297A (en) | 2012-05-14 | 2012-05-14 | TPU compound modification production device |
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| CN2012101476976A CN102649297A (en) | 2012-05-14 | 2012-05-14 | TPU compound modification production device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264453A (en) * | 2013-05-20 | 2013-08-28 | 深圳市翰易机械有限公司 | Thermoplastic polyurethane elastomer production device and method |
| CN103568276A (en) * | 2013-11-06 | 2014-02-12 | 高鼎精细化工(昆山)有限公司 | TPU (thermal plastic polyurethane) production device with circulation cooling function |
| CN103568271A (en) * | 2013-11-06 | 2014-02-12 | 高鼎精细化工(昆山)有限公司 | Thermoplastic polyurethane elastomer (TPU) production device capable of automatically replacing filter screen |
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| CN1833850A (en) * | 2005-03-17 | 2006-09-20 | 苏舍化学技术有限公司 | Method for the continuous manufacture of expandable plastic granulate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264453A (en) * | 2013-05-20 | 2013-08-28 | 深圳市翰易机械有限公司 | Thermoplastic polyurethane elastomer production device and method |
| CN103568276A (en) * | 2013-11-06 | 2014-02-12 | 高鼎精细化工(昆山)有限公司 | TPU (thermal plastic polyurethane) production device with circulation cooling function |
| CN103568271A (en) * | 2013-11-06 | 2014-02-12 | 高鼎精细化工(昆山)有限公司 | Thermoplastic polyurethane elastomer (TPU) production device capable of automatically replacing filter screen |
| CN103568276B (en) * | 2013-11-06 | 2016-01-06 | 高鼎精细化工(昆山)有限公司 | There is the TPU process units of circulating cooling function |
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Application publication date: 20120829 |