What material is tpu?
Tpu is a thermoplastic? The abbreviation of urethane is thermoplastic polyurethane elastomer in Chinese. This is a building material, in fact, it is also a common material. Tpu has strong high tension and high tension. It is a mature environmental protection material and has passed the international environmental protection material certification.
Characteristics of tpu material:
1.？ High wear resistance: It can be seen from the comparison of Taber wear index between tpu and other materials.
2.？ Wide hardness range: by changing the proportion of various reaction components of TPU, products with different hardness can be obtained, and with the increase of hardness, their products still maintain good elasticity.
3.？ High mechanical strength: tpu products have outstanding bearing capacity, impact resistance and shock absorption.
4.？ Good processability: tpu can be processed by common processing methods of thermoplastic materials, such as injection, extrusion and calendering. At the same time, TPU can be processed with some polymer materials to obtain polymer alloys with complementary properties.
5.？ Outstanding cold resistance: the glass transition temperature of tpu is relatively low, and it still maintains good physical properties such as elasticity and flexibility at MINUS 35 degrees.
6.？ Oil-resistant, waterproof and mildew-proof.
7. Good recycling.
Tpu manufacturer:
At present, the most widely used TPU brands in the market mainly include the following:
High-end brands (four international brands): 1 Luborun (Nuoyu? Korea SK? Dow); 2 BASF; 3 Bayer; 4? Hensman
Low-end brand: 1 Taiwan Province province material (COTING? Rainbow overflow? Three shakes? Kun zhong); 2 Chinese mainland (yantai wanhua? )
Tpu products are widely used:
A. Footwear: sports shoes Logo, sports shoes air cushion, hiking shoes, snow shoes, golf shoes, roller skates, fabrics and internal bonding materials.
B. ready-made clothes: snow coat, raincoat, windbreaker, winter jacket, field suit, diaper, Fabric composites such as trousers (waterproof and moisture permeable).
C. medicines: surgical gowns, hats, shoes, etc. Hospital mattresses, ice packs, bandages, plasma bags, surgical dressing belts, masks and other fabrics and lining materials, operating bed airbags.
D defense supplies: fabrics and lining fabrics of aircraft fuel tanks and airbags, weapon sealing films, tent windows, military water bags, life jackets, inflatable boats, etc.
E. Sporting goods: football surface and liner, inflatable bed, drinking bag, ski gloves (waterproof bag), diving suit, snow suit, swimsuit, snowboard, trademark, airbag, undershirt, slimming suit and other fabrics and lining materials.
F industrial supplies: rubber edges of trumpet drum paper, waterproof strips, sound insulation materials, fireproof materials and fireproof clothing? Finished fabrics and internal composite materials such as fire-fighting clothing and fire-fighting cloth.
G. other uses:? Mobile phone keys, plastic inflatable toys, bed sheets, table towels, shower curtains, furniture cloth, aprons, pianos, computer keyboards, film covers and other fabrics and linings.
Two forms of tpu materials:
1, tpu film/sheet
TPU film is widely used in sports shoes: trademark decoration of soles and uppers, airbags, air cushions, oil bags and so on. At present, there are two trends in the application of tpu film in sports shoes: one is the popular trend of Nike sports shoes, that is, the TPU film is printed and colored by screen printing first, and then molded at high frequency and glued to the upper for decoration to obtain special decorative effects. Secondly, the waterproof and moisture-permeable TPU film is used with the cloth for shoe materials to achieve the waterproof and moisture-permeable effect.
2.tpu particles
Thermoplastic tpu elastomer is made of MDI with NCO functional group and polyol 1.4BG with OH functional group through extrusion and mixing. Because of its good elasticity, good physical properties and excellent mechanical strength, it is widely used in processing methods such as injection, extrusion, calendering and dissolving into solution resin, and is a plastic material often used by plastic processors. Its products cover the range of industrial applications and necessities of people's livelihood.
Shrinkage of tpu material
The shrinkage rate of tpu material is related to hardness, which is high or low. The hardness of 80-90 is about 0.8%. A single TPU part is generally small, and the shrinkage is not important.
How much is tpu raw material per ton?
TPU materials are divided into imported and domestic TPU, so the prices of imported TPU and domestic TPU are different. The general market price of genuine imported TPU is about 30,000-50,000 tons, while domestic TPU is much cheaper than domestic TPU. The general market price of ordinary TPU is about 25,000-30,000 tons, except for recycled TPU.
Have you ever seen shoes, rain gear or other items made by tpu before? Are you also worried about the safety and environmental protection of this material? I believe everyone has been relieved of the above explanation. Tpu can be a new type of environmental protection material. The above is about what tpu is made of, and I hope it will help everyone! Tubatu decorative net, the leader of the whole industry. Click on the following links on this page, and you can get the major brands' supply, free quality design and free house inspection provided by the professional design team, saving 40% of the decoration cost!
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