The results of solvent resistance tests showed that the solvent resistance property of PU elastomers is the best when the NCO mass fraction is 8%.
耐溶剂实验表明，聚氨酯弹性体在NCO质量分数为8%时耐溶剂性能最好。
The study on high performance PU elastomers was introduced in this paper. The properties of all kinds of PU elastomers prepared by high molecular weight polyether, PPDI, NDI, HTPB was discussed.
本文介绍了高性能聚氨酯弹性体的研究概况，讨论了高分子质量聚醚、PPDI、NDI、HTPB等为主要原料制备的各种聚氨酯弹性体的性能。
The results showed that PU elastomers with broad glass transition temperature and damping temperature could be prepared with three soft segments by semi-prepolymer method at appropriate conditions.
结果表明，选择适当的软段组分和制备条件，通过半预聚体方式制备三软段聚氨酯弹性体是可行的。
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