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The classification and characteristic of the ETPU material


Classification of the ETPU material
Polyurethane thermoplastic elastomers include polyester type and polyether type. They are white irregular spherical or columnar particles with a density of 1.10 ~ 1.25g/cm3. The relative density of polyether type is smaller than that of polyester type. The glass transition temperature of polyether type is 100.6 ~ 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 polyether is better than that of polyester.

Characteristic of the ETPU material
Polyurethane thermoplastic elastomer is characterized by excellent wear resistance, excellent ozone resistance, high hardness, high strength, good elasticity, low temperature resistance, good oil resistance, chemical resistance and environmental resistance. In humid environment, the hydrolysis stability of polyether ester is much higher than that of polyester ester.