TPU (Thermoplastic polyurethanes) is a thermoplastic polyurethane elastomer rubber. (60HA-85HD), wear-resistant, oil-resistant, transparent, good elasticity, in the daily necessities, sporting goods, toys, decorative materials and other fields have been widely used in the field of polyester and polyester, Halogen-free flame retardant TPU can also replace the soft PVC to meet more and more areas of environmental requirements.
The so-called elastomer refers to the glass transition temperature is lower than the room temperature, elongation at break> 50%, external recovery after recovery is better polymer materials. Polyurethane elastomers are a special category of elastomers. The polyurethane elastomers have a wide range of hardness and a wide range of properties. Therefore, polyurethane elastomers are a kind of polymer material between rubber and plastic.Can be heated plasticized, chemical structure is not or rarely cross-linked, the molecules are basically linear, but there is a certain physical cross-linking. This type of polyurethane is called TPU.
The main features of TPU are:
Hardness
range: by changing the TPU reaction components of the ratio, you can
get different hardness of the product, and with the increase in
hardness, its products still maintain good flexibility and wear
resistance.
High mechanical strength: TPU products carrying capacity, impact resistance and shock absorption performance.
Cold
resistance highlights: TPU glass transition temperature is relatively
low, at minus 35 degrees still maintain good flexibility, flexibility
and other physical properties.
Good processing
performance: TPU can be a common thermoplastic materials processing
methods, such as injection molding, extrusion, rolling and so on. At the same time, TPU and some polymer materials can be co-processing performance of complementary polymer alloy.
Oil, water, resistant to mold.
Good recycling efficiency.
TPU is a
thermoplastic polyurethane, polyester and polyether type, it is a wide
range of hardness (60A-85D), wear, oil, transparent, good elasticity, in
daily necessities, sporting goods, toys, decorative materials and other
fields are widely Application, halogen-free flame
retardant TPU can also replace the soft PVC to meet the environmental
requirements of more and more areas.
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