聚氨酯, 通常缩写为PU, 是由氨基甲酸酯链连接的有机单元链组成的任何聚合物.
聚氨酯聚合物是由含有至少两个异氰酸酯官能团的单体与另一种含有至少两个醇基团的单体在催化剂存在下反应形成的.
聚氨酯配方涵盖极其广泛的刚度范围, 硬度, 和密度. 这些材料包括:
1.用于室内装潢和床上用品的低密度软质泡沫,
2.低密度硬质泡沫用于隔热等. 汽车仪表板,
3.用于凝胶垫和打印辊的软固体弹性体, 以及用作电子仪器边框和结构件的硬质固体塑料.
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