CN102390152B

CN102390152B - Manufacture method of high-strength TPU (thermoplastic polyurethane) compound fabric

Info

Publication number: CN102390152B
Application number: CN201110204668.4A
Authority: CN
Inventors: 华晓枫
Original assignee: WUXI XIANGLONG POLYMER FABRIC CO Ltd
Current assignee: WUXI XIANGLONG POLYMER FABRIC CO Ltd
Priority date: 2011-07-21
Filing date: 2011-07-21
Publication date: 2015-04-29
Anticipated expiration: 2031-07-21
Also published as: CN102390152A

Abstract

The invention discloses a manufacture method of a high-strength TPU (thermoplastic polyurethane) compound fabric, which solves the problems of uneven film, low yield and high cost of the TPU compound fabric produced by adopting the traditional production method of the TPU compound fabric. A TPU film is produced with high production efficiency and low cost by adopting a process of calendering with a four-roller calendar. Because the produced TPU film has uniform thickness, the produced high-strength fabric has the advantages of uniform cloth, good compound fabric, high coating strength, high airtightness and high abrasive resistance, and can be widely applied to the fields of airships, surface-effect ships, oil containment booms, lifesaving devices, supplementary restraint systems and the like.

Description

The manufacture method of high strength TPU composite material

Technical field

The present invention relates to the manufacture method of a kind of high strength TPU (thermoplastic polyurethane) composite material.

Background technology

The mode of production of traditional TPU composite material has dipping, be coated with scrape, film lamination compound and extrude curtain coating compound online, film adopts blowing and the tape casting to make, its shortcoming be film uneven, yield poorly, cost is high.

Summary of the invention

The object of this invention is to provide a kind of manufacture method of high strength TPU composite material, with solve the film of TPU composite material that existing TPU composite material production method produces uneven, yield poorly, problem that cost is high.

The object of the invention is to be achieved through the following technical solutions:

A manufacture method for high strength TPU composite material, comprises the following steps:

(1) manufacture of TPU film, specifically comprises: 1. TPU material granule is sent into high speed mixing machine and carry out drying, oven dry, temperature controls at 80 DEG C ~ 130 DEG C, and time controling was at 3 ~ 5 hours; 2. the TPU material granule of drying is sent into mixer mixing 10 ~ 15 minutes, temperature controls at 100 DEG C ~ 120 DEG C; 3. the mixture in molten condition is sent into plastics processing mill by conveyer belt to heat plasticizing, temperature controls at 140 DEG C ~ 180 DEG C; 4. the raw material after plasticizing is sent into screw rod filter by conveyer belt, impurity screening, temperature controls at 140 DEG C ~ 180 DEG C, and filtering mesh is 120 order ~ 200 orders; 5. send into by conveyer belt the calendering that calender carries out film by filtering the raw material after fully plastifying, required thickness specification is by regulating running roller spacing setting.

Further, technique scheme also comprises step (two): fitted by the TPU film made upper multi-functional coatings combination machine together with base cloth, specifically comprise: 1. uncoiling machine on base cloth holder, with the gluing of scraper type coating head, then enter hot-air oven and carry out hyperthermia drying, make that the solvent in glue volatilizees, adhesive primary solidification on base cloth, the temperature in hot-air oven from low to high, is risen progressively from fabric input mouth between 110 DEG C ~ 160 DEG C; 2. Ji Bu and TPU film are fitted on compounding machine.

More intactly, described step (one) also comprise: 6. deliver on embossing device by the film be rolled into by deflecting from device, extrudes the pattern of indentations required; 7. the film after embossing is cooled by cooling device, then enter cold-trim(ming) device, cut into the film of required fabric width specification; 8. with devices for taking-up, bundling carries out to the finished film cut into quantitative.

Described calender is four-roll calender.

Described glue is the polyurethane PU glue mixing the butanone of 20% ~ 30% and the crosslinking agent of 6% ~ 10%.

Described cooling device is the chill roll that inside passes to normal temperature recirculated water.

Beneficial effect of the present invention is: the TPU film thickness that four-roll calender calendering is formed is even, and the high strength fabric cloth produced thus is even, composite effect good, coating strength is high, air-tightness is high, wearability is high, and production efficiency is high, cost is low.

Accompanying drawing explanation

According to drawings and embodiments the present invention is described in further detail below.

Fig. 1 is the schematic diagram of the production line for implementing step of the present invention ().

In figure: 1, high speed mixing machine; 2, banbury; 3, plastics processing mill; 4, screw rod filter; 5, calender; 6, device is deflected from; 7, embossing device; 8, cooling device; 9, cold-trim(ming) device; 10, devices for taking-up.

Detailed description of the invention

As shown in Figure 1, the manufacture method of high strength TPU composite material of the present invention, comprises the following steps:

(1) manufacture of TPU film, specifically comprises: 1. TPU material granule is sent into high speed mixing machine 1 and carry out drying, oven dry, temperature controls at 80 DEG C ~ 130 DEG C, and time controling was at 3 ~ 5 hours; 2. the TPU material granule of drying is sent into mixing 10 ~ 15 minutes of banbury 2, temperature controls at 100 DEG C ~ 120 DEG C; 3. the mixture in molten condition is sent into plastics processing mill 3 by conveyer belt to heat plasticizing, temperature controls at 140 DEG C ~ 180 DEG C; 4. the raw material after plasticizing is sent into screw rod filter 4 impurity screening by conveyer belt, temperature controls at 140 DEG C ~ 180 DEG C, and filtering mesh is 120 order ~ 200 orders; 5. send into by conveyer belt the calendering that calender 5 carries out film by filtering the raw material after fully plastifying, required thickness specification is by regulating running roller spacing setting.

Further, technique scheme also comprises step (two): fitted by the TPU film made upper multi-functional coatings combination machine together with base cloth, for 201D oxford laminating 0.10mm TPU film, specifically comprise: 1. uncoiling machine on base cloth holder, with the gluing of scraper type coating head, then enter hot-air oven and carry out hyperthermia drying, make that the solvent in glue volatilizees, adhesive primary solidification on base cloth, temperature in hot-air oven from low to high, is risen progressively from fabric input mouth between 110 DEG C ~ 160 DEG C; 2. Ji Bu and TPU film are fitted on compounding machine.

The product that Ji Bu laminating TPU film is made, is the TPU composite material of high strength.Fabric after compound sends into chill roll through fabric guide roll, cools laggard trimming winder, carries out finished product winding.

More intactly, described step (one) also comprise: 6. deliver on embossing device 7 by the film be rolled into by deflecting from device 6, extrudes the pattern of indentations required; 7. the film after embossing is cooled by cooling device 8, then enter cold-trim(ming) device 9, cut into the film of required fabric width specification; 8. with devices for taking-up 10, bundling carries out to the finished film cut into quantitative.

Described calender 5 is four-roll calender.

Described cooling device 8 is the inner chill roll passing to normal temperature recirculated water.

Preferably, described glue is the polyurethane PU glue mixing the butanone of 20% ~ 30% and the crosslinking agent of 6% ~ 10%.

The TPU composite material film that this method is made is even, thickness error is less than 0.015mm, bonding firmly, wear-resisting flex endurant, good springiness, intensity are large, cold resistance good, environment-protecting asepsis, and output is high, cost is low, profitable, product is applicable to the aft-loaded airfoil of the welding manners such as high frequency, ultrasonic wave, heating, can be widely used in dirigible, aircushion vehicle, enclose Hu Lan, the field such as buoyant apparatus, air bag.

Claims

1. a manufacture method for high strength TPU composite material, is characterized in that comprising the following steps:

The manufacture of step (one) TPU film, specifically comprises: 1. TPU material granule is sent into high speed mixing machine and carry out drying, oven dry, temperature controls at 80 DEG C ~ 130 DEG C, and time controling was at 3 ~ 5 hours; 2. the TPU material granule of drying is sent into mixer mixing 10 ~ 15 minutes, temperature controls at 100 DEG C ~ 120 DEG C; 3. the mixture in molten condition is sent into plastics processing mill by conveyer belt to heat plasticizing, temperature controls at 140 DEG C ~ 180 DEG C; 4. the raw material after plasticizing is sent into screw rod filter by conveyer belt, impurity screening, temperature controls at 140 DEG C ~ 180 DEG C, and filtering mesh is 120 order ~ 200 orders; 5. send into by conveyer belt the calendering that calender carries out film by filtering the raw material after fully plastifying, required thickness specification is by regulating running roller spacing setting;

Step (two): the TPU film made upper multi-functional coatings combination machine together with base cloth is fitted, specifically comprise: 1. uncoiling machine on base cloth holder, with the gluing of scraper type coating head, then enter hot-air oven and carry out hyperthermia drying, make that the solvent in glue volatilizees, adhesive primary solidification on base cloth, temperature in hot-air oven from low to high, is risen progressively from fabric input mouth between 110 DEG C ~ 160 DEG C; 2. Ji Bu and TPU film are fitted on compounding machine.

2. the manufacture method of high strength TPU composite material according to claim 1, is characterized in that described step () also comprises: 6. deliver on embossing device by the film be rolled into by deflecting from device, extrudes the pattern of indentations required; 7. the film after embossing is cooled by cooling device, then enter cold-trim(ming) device, cut into the film of required fabric width specification; 8. with devices for taking-up, bundling carries out to the finished film cut into quantitative.

3. the manufacture method of high strength TPU composite material according to claim 1, is characterized in that: described calender is four-roll calender.

4. the manufacture method of high strength TPU composite material according to claim 1, is characterized in that: described glue is the polyurethane PU glue mixing the butanone of 20% ~ 30% and the crosslinking agent of 6% ~ 10%.

5. the manufacture method of high strength TPU composite material according to claim 2, is characterized in that: described cooling device is the chill roll that inside passes to normal temperature recirculated water.