聚氨酯弹性体的紫外线稳定性

刘凉冰

摘　要：指出影响聚氨酯(PU)弹性体紫外线稳定性的主要因素有软段(聚酯、聚醚)、二异氰酸酯、硬段质量分数及照射时间、样品厚度，同时讨论了这些因素对紫外线照射后的PU弹性体某些力学性能的影响，添加紫外线吸收剂和炭黑可改善PU弹性体紫外线稳定性。
关键词：聚氨酯；弹性体；降解；紫外线吸收剂；稳定性
分类号：TQ323.8　文献标识码：A
文章编号：1005-3174(2001)01-0013-05

Polyurethane elastomer ultraviolet stabilization

LIU Liang-bing（Shanxi Provincial Institute of Chemical Industry,Taiyuan　030021,China）　

Abstract：A review is cited with 15 references.Effects of soft segment(polyester and polyether),di-isocyanate,chain extenders,concentration of hard segment,exposure time on ultraviolet stabilization of polyurethane elastomer were discussed.
Keywords：polyurethane;elastomer;degradation;ultraviolet absorber;stabilization

参考文献：

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收稿日期：2000年10月26日

出版日期：2001年2月1日