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聚氨酯橡胶是集橡胶和塑料之优点为一体的新型高分子合成材料。它既具有塑料的高强度,又具有橡胶的高弹性和韧性,其综合性能更为突出,兼备了橡胶和塑料的许多宝贵特性,它们是:〈1〉硬度范围宽,而且在高硬度下仍具有橡胶的伸长率和回弹性。〈2〉强度高,在橡胶硬度下它的扯断强度、撕裂强度和承载能力比通用橡胶高得多。在高强度下它们的冲击强度和弯曲强度又比硬塑料高得多。〈3〉耐磨,聚氨酯橡胶的耐磨性能非常突出,约为天然橡胶的3～5倍,享有“耐磨橡胶”的美称。
Polyurethane rubber is a set of advantages of rubber and plastic as one of the new polymer materials. It combines the high strength of plastic with the high elasticity and toughness of rubber. Its comprehensive performance is more outstanding. It combines many valuable properties of rubber and plastic. They are: <1> Wide range of hardness and high hardness With rubber elongation and resilience. <2> High strength, its tear strength, tear strength and load carrying capacity are much higher than those of general-purpose rubber under rubber hardness. Their impact strength and flexural strength are much higher than hard plastics at high strength. <3> Wear-resistant, polyurethane rubber wear performance is very prominent, about 3 to 5 times the natural rubber, enjoy the “wear-resistant rubber” reputation.