TPU (thermoplastic polyurethane) is a new type of organic polymer synthetic material, belonging to compounds. Its English trademark is flexible polyurethane. It has excellent properties and can replace rubber and soft PVC. Its excellent physical properties, such as wear resistance and resilience, are better than ordinary polyurethane and PVC, and its aging resistance is better than rubber. It can be said that it is the most ideal material to replace PVC and PU. It is called a new polymer material internationally.
application area
A. Footwear: sports shoes Logo, sports shoes air cushion, hiking shoes, snow shoes, golf shoes, roller skates, fabrics and internal bonding materials.
B clothing: snow coat, raincoat, windbreaker, cold jacket, field suit, diaper, trousers and other composite fabrics (waterproof and moisture permeable).
Medicines: surgical gowns, hats, shoes, hospital mattresses, ice packs, bandages, plasma bags, surgical bandages, masks and other surfaces.
Materials and lining materials, operating bed airbag.
Defense articles: fabric and lining fabric of aircraft fuel tank and airbag, weapon sealing film, tent window, military water bag, life jacket, inflatable boat, etc.
Sporting goods: football surface and liner, inflatable bed, drinking bag, ski gloves (waterproof bag), diving suit, snow coat, swimsuit, snowboard, trademark, airbag, undershirt, slimming clothes and other fabrics and lining materials.
Industrial supplies: rubber edges of trumpet drum paper, waterproof strips, sound insulation materials, fireproof materials, fireproof clothing, fireproof clothing, fireproof cloth and other fabrics, inner composite materials and outer sheath materials of wires and cables.
Other uses: mobile phone keys, plastic inflatable toys, sheets, tablecloths, shower curtains, furniture cloth, aprons, pianos, computer keyboards, film covering and other fabrics and lining materials.
Final result
TPU characteristics: 1. Good elasticity (elongation 300%-600% without deformation) 2. Wear resistance 3. Cold tolerance (-40~-70'C).
Antibacterial resistance 6. Environmental protection (recyclable and decomposable)
classify
Polyurethane thermoplastic elastomer is divided into polyester type and polyether type, with white irregular spherical or columnar particles, and the relative density is 1. 10- 1.25. The relative density of polyether type is less than that of polyester type. The glass transition temperature of polyether type is100.6-106.1℃, and that of polyester type is 108.9- 122.8℃. The brittleness temperature of polyether and polyester is lower than -62℃, and the low temperature resistance of hard ether is worse than that of polyester.
trait
The outstanding characteristics of polyurethane thermoplastic elastomer are excellent wear resistance, excellent ozone resistance, high hardness, high strength, good elasticity, low temperature resistance, good oil resistance, chemical resistance and environmental resistance. The hydrolytic stability of polyether ester is far better than that of polyester ester in wet environment.