What is
Time：2020-03-11Hits：1818
When we buy the mobile phone protective cover, we can see from the instructions that its production material is tpu. A lot of people don't like it, but it always exists by your side. Come on, let's see what TPU material is.
What is TPU material?
TPU(Thermoplasticpolyurethanes), Chinese name is thermoplastic polyurethane elastomer rubber. TPU is a high molecular material formed by the reaction and polymerization of diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI), macromolecular polyol and chain extender. It is a kind of plastic material that can soften or change repeatedly under certain heat, but it can keep its shape unchanged at normal temperature and play a supporting and protecting role. It is widely used in midsole.
Characteristics of TPU Materials:
1. High abrasion resistance: It can be seen from the comparison of Taber abrasion index between tpu and other materials.
2. Wide range of hardness: By changing the proportion of TPU reaction components, products with different hardness can be obtained, and with the increase of hardness, the 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, calendering, etc. Meanwhile, TPU and some polymer materials can be processed together to obtain polymer alloy with complementary properties.
5. Outstanding cold resistance: tpu has a relatively low glass transition temperature and still maintains good elasticity, flexibility and other physical properties at minus 35 degrees.
6. Oil, water and mould resistance.
7. Good reusability.
TPU products are widely used:
A. Footwear: Logo of sports shoes, air cushion of sports shoes, mountaineering shoes, snowshoes, golf shoes, skates, fabrics and lining materials.
B. ready-to-wear clothing: snow coat, raincoat, windbreaker, winter jacket, field suit, paper diaper, biological pants, and other fabric composite materials (waterproof and moisture permeable).
C. pharmaceuticals: surgical gowns, caps, shoes, hospital mattresses, ice bags, bandages, plasma bags, surgical bandages, masks, other fabrics and lining materials, operating bed airbags.
D. national defense articles: aircraft fuel tank, fabric and lining materials for weapons storage, tent windows, military water bags, life jackets, motorboats, etc., and airbags.
E. sporting goods: football surface and inner container, inflatable bed, drinking bag, ski gloves (waterproof bag), diving suit, snowsuit, bathing suit, snowboard, trademark, air bag, sports shirt, slimming clothes and other fabrics and inner materials.
F. industrial products: horn drum paper rubber edge, waterproof strip, sound insulation material, fireproof material, fireproof clothing, finished fire fighting clothing, fireproof cloth and other fabrics and lining composite materials.
G. other uses: cell phone keys, plastic inflatable toys, bed sheets, tablecloths, shower curtains, furniture cloths, aprons, pianos, computer keyboards, laminating and other fabrics and lining materials.
德创化工 (edit：dechuang)
