CN103015184A - Preparation method for novel TPU (Thermoplastic Polyurethane) aramid fiber coated fabric - Google Patents
Preparation method for novel TPU (Thermoplastic Polyurethane) aramid fiber coated fabric Download PDFInfo
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- CN103015184A CN103015184A CN2012104831005A CN201210483100A CN103015184A CN 103015184 A CN103015184 A CN 103015184A CN 2012104831005 A CN2012104831005 A CN 2012104831005A CN 201210483100 A CN201210483100 A CN 201210483100A CN 103015184 A CN103015184 A CN 103015184A
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- aramid fiber
- fabric
- handpiece
- polyurethane
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- 239000004744 fabric Substances 0.000 title claims abstract description 88
- 229920006231 aramid fiber Polymers 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 229920002803 thermoplastic polyurethane Polymers 0.000 title claims abstract 6
- 239000004433 Thermoplastic polyurethane Substances 0.000 title abstract 5
- 229920002635 polyurethane Polymers 0.000 claims abstract description 21
- 239000004814 polyurethane Substances 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 229920003225 polyurethane elastomer Polymers 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000004381 surface treatment Methods 0.000 claims abstract description 5
- 229920000271 Kevlar® Polymers 0.000 claims description 38
- 239000004761 kevlar Substances 0.000 claims description 38
- 239000008188 pellet Substances 0.000 claims description 15
- 238000011282 treatment Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 238000004513 sizing Methods 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract 5
- 238000001125 extrusion Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 15
- 229920001971 elastomer Polymers 0.000 description 10
- 239000005060 rubber Substances 0.000 description 10
- 239000000295 fuel oil Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 229920000459 Nitrile rubber Polymers 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 239000003292 glue Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920003366 poly(p-phenylene terephthalamide) Polymers 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to a preparation method for novel TPU (Thermoplastic Polyurethane) aramid fiber coated fabric. The preparation method comprises the steps of firstly, conducting heat treatment, sizing and surface treatment on high-strength aramid fiber fabric; secondly, adding a polyurethane elastomer into a hopper, sealing, drying and dehumidifying; thirdly, adjusting the direction of a handpiece; fourthly, preheating the handpiece, opening a traction machine every 20 minutes to pull the aramid fiber fabric out of the handpiece for 190-210mm; fifthly, drying the aramid fiber fabric subjected to the surface treatment; and sixthly, when the temperature of the handpiece reaches to be a certain value, starting an extrusion machine and conducting the traction so as to enable the aramid fiber fabric to pass through a mouth of the handpiece and enable polyurethane granules to enter a screw extruder, moving the granules towards the direction of the handpiece, heating the granules to achieve the temperature being 200 DEG C-210 DEG C at the mouth of the handpiece, driving the granules to enter the extrusion handpiece in a melted viscous flow state, coating the granules on the upper surface and the lower surface of the aramid fiber fabric, cooling, drawing and curling the polyurethane aramid fiber fabric to form the high-strength ultra oil-resistance TPU aramid fiber coated fabric.
Description
One, technical field
The present invention relates to a kind of preparation method of new TP U aramid fiber coated fabric, specifically the polyurethane (TPU) of a kind of intensity height, oil resistivity and low temperature excellence applies the preparation method of kevlar fabric.
Two, background technology
Domestic coated fabric has rubber and plastic coat fabric, rubber and plastic coat fabric all are that rubber and the plastics mode by calendering or curtain coating is coated on the kevlar fabric, again by the cooling TPU aramid fiber coated fabric, through cut out, park, just can make product use again by moulding, sulfuration for coated fabric.
Existing oil-resistant coated fabric generally all is acrylonitrile-butadiene rubber and complex thereof, acrylonitrile-butadiene rubber coated fabric coating acrylonitrile-butadiene rubber and composite coating thereof easily carry out two-way mass exchange with the fuel oil of depositing, be that inner glue layer that fuel molecule sees through acrylonitrile-butadiene rubber and compound adhesive coating thereof oozes out and causes the container oil impregnate, leached by fuel oil such as the little molecule such as additive and auxiliary agent in the inner glue layer simultaneously and be sucked out from the low molecule of inner glue layer and enter fuel oil, make the pollution fuel oil, therefore, there is following shortcoming at least in the product that existing acrylonitrile-butadiene rubber coated fabric is made: oil resistivity is not good, fuel oil is easily contaminated, be that the low molecule of sizing material is separated out and entered the stored fuel oil from inner glue layer, fuel oil easily oozes out by inner glue layer, cause fuel oil pollution, affect the serviceability of fuel oil; The poor performance at low temperatures of acrylonitrile-butadiene rubber easily becomes fragile under the low temperature condition, folds to damage; On the other hand, the framework material of oil-resistant coated fabric generally is nylon and polyester fiber, and intensity is low, can not satisfy high-intensity instructions for use.
The framework material of existing rubber coated fabrics and plastic coat fabric is general nylon and polyester fiber, framework material intensity is low, tear resistance is poor, can not satisfy equipment in particular cases to high strength, high tear can adhesive plaster requirement, and the cryogenic property of ordinary rubber and plastic coat fabric is not good; The oil resistivity aspect, the oil resistivity of acrylonitrile-butadiene rubber rubber coated fabrics is good, and the oil resistivity of plastic coat fabric is excellent.
Three, summary of the invention
The objective of the invention is in order to overcome existing rubber and the plastic coat fabric intensity is low, oil resistant and cryogenic property are not good, and a kind of preparation method of new TP U aramid fiber coated fabric is provided.
The object of the present invention is achieved like this:
1, at first to high-strength kevlar fabric at 225--235 ℃ of lower heat treatment shaping, finalized the design 30 minutes, process with finishing agent (CLJ001) after the typing and to the kevlar fabric surface, kevlar fabric is dried 45--55 ℃ of condition after treatment, drying time 20-30 minute, dry complete after, sealing is deposited dry place and is preserved with for subsequent use.
2, polyurethane elastomer is added in the material bin, behind the sealing hopper, at 80 ℃-85 ℃, drying also dehumidified 4-5 hour, can start extruder;
3, the distance of the upper and lower shape of the mouth as one speaks of regulating frame head, the thickness of the upper and lower glue-line of assurance coated fabric;
4, the head preheat temperature is at 190-200 ℃, and time 4--5 hour, in warm, open hauling machine every 20min kevlar fabric is pulled out head 190--210mm, stop up in the long damage of made-up belt heated time and the head preventing;
5, with the kevlar fabric after the surface treatment, carry out drying by drying baker, temperature is controlled at 80 ℃-100 ℃, dry 30 minutes;
6, reach 195--205 ℃ when head temperature, start extruder, open traction, make kevlar fabric pass through lips gap, the polyurethane pellet enters screw extruder, pellet moves to heading under screw rod promotes, through five sections heating, pellet is reached between 200-210 ℃ in head exit temperature, surpass the pellet fusing point, pellet enters extruder head with the viscous state of molten, is coated in the upper and lower surface of kevlar fabric, and the polyurethane kevlar fabric is by cooling, traction, curling the super oil-resisting type TPU of super-strength aramid fiber coated fabric.
The aramid fiber full name is " PPTA ", English is Aramid fiber, be a kind of novel high-tech synthetic fiber, have superhigh intensity, high-modulus and high temperature resistant, acid-fast alkali-proof, the premium properties such as lightweight, it has good insulating properties and ageing resistace, has very long life cycle, the discovery of aramid fiber is considered to very important historical progress of material circle, but the aramid fiber stable performance, cause the poor performance on aramid fiber surface, and rubber is poor with other material binding ability; For increasing coated fabric intensity and tear resistance, the skeleton enhancement layer of coated fabric is selected the kevlar fabric of superhigh intensity, high-modulus; For poor adhesion problem between the poor performance on aramid fiber surface and the rubber, physical or chemical treatment is carried out on the aramid fiber surface, change on the one hand the performance on aramid fiber surface by some chemical treatments, increase the activity on aramid fiber surface, improve the bonding force between aramid fiber and the rubber; Change on the other hand fabric construction and the surface roughness of kevlar fabric by the method for physics, make the kevlar fabric surface irregularity, the surface area of kevlar fabric increases, and the contact area of polyurethane (TPU) and kevlar fabric increases, and cohesive force improves; Chemistry and physical method all can change the surface of kevlar fabric, improve the activity on surface, reach a conclusion by above test, use the activity that surface conditioning agent can larger raising kevlar fabric, the bonding force on increase kevlar fabric surface.
The polyether-type Polyurethane Thermoplastic Elastomer has intensity height, oil resistant and the characteristics such as low temperature performance excellent and shock resistance; be coated with respectively the polyether-type Polyurethane Thermoplastic Elastomer on the kevlar fabric surface; inside and outside coating is inner liner and the functional layer of coated fabric; functional layer protects enhancement layer to avoid rubbing and damaging on the one hand, gives on the other hand oil resistance, cryogenic property and the shock resistance of coated fabric excellence.
Generally between 170-180 ℃, head temperature is too high for the fusing point of polyether-type Polyurethane Thermoplastic Elastomer, overlong time, and the polyurethane elastomer performance can reduce, and the bonding force of polyurethane and kevlar fabric descends; Head temperature is excessively low, and polyurethane elastomer can not melt fully, and the bonding force of polyurethane and kevlar fabric descends, and polyurethane (TPU) aramid fiber coated fabric surface irregularity, and is of poor quality, can not satisfy technological requirement; Therefore, should strictly control head temperature in the production of polyurethane-coated fabric, the quality that the bonding force of assurance polyurethane (TPU) and coated fabric closes coated fabric.
The present invention be with superhigh intensity, height tear, stable chemical performance, the polyurethane of the kevlar fabric that ageing-resistant performance is good and intensity height, oil resistant and low temperature performance excellent combines, form the good polyurethane of a kind of superhigh intensity, oil resistivity and low temperature (TPU) aramid fiber coated fabric, this coated fabric has been drawn the excellent performance of bi-material.On the one hand, this coated fabric has been used for the oil vessel of ultralow temperature equipment, has satisfied under the ultralow temperature visual plant to the supply of oil plant; On the other hand, because the intensity of polyurethane TPU coated fabric is high, tear resistance, hardness is large and very property is good, this coated fabric also is applied to the shock mitigation system of important antiknock device, for visual plant and instrument damping behind the explosive charge, the buffering blast is to the impulsive force of equipment and instrument, and this coated fabric is by army's explosive test, and is respond well.
Four, the specific embodiment
The preparation method of a kind of new TP U aramid fiber of the present invention coated fabric:
1, high-strength kevlar fabric is at 225--235 ℃ of lower heat treatment shaping, 30 minutes time, carry out surface finishing agent (CLJ001) processing after the typing and to kevlar fabric, kevlar fabric is dried under 45--55 ℃ of condition after treatment, drying time 20-30 minute, dry complete after, sealing is deposited dry place and is preserved with for subsequent use.
2, polyurethane elastomer is added in the material bin, behind the sealing hopper, at 80 ℃-85 ℃, drying also dehumidified 4-5 hour, can start extruder;
3, the distance of the upper and lower shape of the mouth as one speaks of regulating frame head, the thickness of the upper and lower glue-line of assurance coated fabric;
4, the head preheat temperature is at 190-200 ℃, and time 4--5 hour, in warm, open hauling machine every 20min kevlar fabric is pulled out head 190--210mm, stop up in the long damage of made-up belt heated time and the head preventing;
5, with the kevlar fabric after the surface treatment, carry out drying by drying baker, temperature is controlled at 80 ℃-100 ℃, dry 30 minutes;
6, reach 195--205 ℃ when head temperature, start extruder, open traction, make kevlar fabric pass through lips gap, the polyurethane pellet enters screw extruder, pellet moves to heading under screw rod promotes, through five sections heating, pellet is reached between 200-210 ℃ in head exit temperature, surpass the pellet fusing point, pellet enters extruder head with the viscous state of molten, is coated in the upper and lower surface of kevlar fabric, and the polyurethane kevlar fabric is by cooling, traction, curling the super oil-resisting type TPU of super-strength aramid fiber coated fabric.
Claims (1)
1. the preparation method of a new TP U aramid fiber coated fabric: it is characterized in that: its preparation method is:
(1) high-strength kevlar fabric is at 225--235 ℃ of lower heat treatment shaping, 30 minutes time, carry out surface finishing agent (CLJ001) processing after the typing and to kevlar fabric, kevlar fabric is dried under 45--55 ℃ of condition after treatment, drying time 20-30 minute, dry complete after, sealing is deposited dry place and is preserved with for subsequent use.
(2), polyurethane elastomer is added in the sealing hopper, behind the sealing hopper, at 80 ℃-90 ℃, dryly also dehumidified 4-5 hour, can start extruder;
(3), the distance of the upper and lower shape of the mouth as one speaks of regulating frame head, guarantee the thickness of the upper and lower glue-line of coated fabric;
(4), the head preheat temperature is at 190-200 ℃, time 4--5 hour, in warm, open hauling machine every 20min kevlar fabric pulled out head 190--210mm, stop up in the long damage of made-up belt heated time and the head preventing;
(5), with the kevlar fabric after the surface treatment, dry by drying baker, temperature is controlled at 80 ℃-100 ℃, dry 30 minutes;
(6), reach 195--205 ℃ when head temperature, start extruder, open traction, make kevlar fabric pass through lips gap, the polyurethane pellet enters screw extruder, pellet moves to heading under screw rod promotes, through five sections heating, pellet is reached between 200-210 ℃ in head exit temperature, surpass the pellet fusing point, pellet enters extruder head with the viscous state of molten, is coated in the upper and lower surface of kevlar fabric, and the polyurethane kevlar fabric is by cooling, traction, curling the super oil-resisting type TPU of super-strength aramid fiber coated fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104831005A CN103015184A (en) | 2012-11-14 | 2012-11-14 | Preparation method for novel TPU (Thermoplastic Polyurethane) aramid fiber coated fabric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104831005A CN103015184A (en) | 2012-11-14 | 2012-11-14 | Preparation method for novel TPU (Thermoplastic Polyurethane) aramid fiber coated fabric |
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| CN103015184A true CN103015184A (en) | 2013-04-03 |
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| CN2012104831005A Pending CN103015184A (en) | 2012-11-14 | 2012-11-14 | Preparation method for novel TPU (Thermoplastic Polyurethane) aramid fiber coated fabric |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358622A (en) * | 2013-07-31 | 2013-10-23 | 吴江市欧冠纺织有限公司 | Acidproof fabric |
| CN103397549A (en) * | 2013-08-09 | 2013-11-20 | 浙江台华新材料股份有限公司 | Specky fabric and manufacturing method thereof |
| CN104527190A (en) * | 2014-12-09 | 2015-04-22 | 福州大学 | TPU composite material for oil storage bag |
| CN110903458A (en) * | 2019-12-23 | 2020-03-24 | 万华化学集团股份有限公司 | Preparation method of closed waterborne polyurethane used as aramid fiber surface treatment agent, prepared closed waterborne polyurethane and application |
| CN111378273A (en) * | 2020-02-25 | 2020-07-07 | 凌彩百川（新兴）科技有限公司 | Low-hysteresis-loss high-strength polyurethane elastomer and preparation method thereof |
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2012
- 2012-11-14 CN CN2012104831005A patent/CN103015184A/en active Pending
Patent Citations (4)
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| WO1992010363A1 (en) * | 1990-12-07 | 1992-06-25 | Allied-Signal Inc. | Flame resistant ballistic composite |
| EP0719357B1 (en) * | 1993-09-16 | 1998-01-14 | Ciba SC Holding AG | Thermofixing of dyes in presence of polymerizable compound and an initiator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358622A (en) * | 2013-07-31 | 2013-10-23 | 吴江市欧冠纺织有限公司 | Acidproof fabric |
| CN103397549A (en) * | 2013-08-09 | 2013-11-20 | 浙江台华新材料股份有限公司 | Specky fabric and manufacturing method thereof |
| CN103397549B (en) * | 2013-08-09 | 2016-08-10 | 浙江台华新材料股份有限公司 | A kind of specky fabric and preparation method thereof |
| CN104527190A (en) * | 2014-12-09 | 2015-04-22 | 福州大学 | TPU composite material for oil storage bag |
| CN110903458A (en) * | 2019-12-23 | 2020-03-24 | 万华化学集团股份有限公司 | Preparation method of closed waterborne polyurethane used as aramid fiber surface treatment agent, prepared closed waterborne polyurethane and application |
| CN111378273A (en) * | 2020-02-25 | 2020-07-07 | 凌彩百川（新兴）科技有限公司 | Low-hysteresis-loss high-strength polyurethane elastomer and preparation method thereof |
| CN111378273B (en) * | 2020-02-25 | 2022-04-12 | 凌彩百川（新兴）科技有限公司 | Low-hysteresis-loss high-strength polyurethane elastomer and preparation method thereof |
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Application publication date: 20130403 |