氟橡胶接枝马来酸酐增容氟橡胶/热塑性聚氨酯共混物的性能

董丽杰　 王颖　 杨剑　 熊传溪　

摘　要：研究了氟橡胶(FKM)接枝马来酸酐(FKM-g-MAH)增容FKM/热塑性聚氨酯(TPU)共混物的物理机械性能及动态力学性能.结果表明,当FKM-g-MAH质量分数为15%时,FKM/TPU共混物的物理机械性能最佳;添加增容剂FKM-g-MAH后,FKM/TPU共混物中FKM和TPU两相的相容性得到改善,且其阻尼性能优于纯FKM.
关键词：氟橡胶;接枝;马来酸酐;热塑性聚氨酯;共混;增容;物理机械性能;动态力学性能
分类号：TQ333.93 　文献标识码：B
文章编号：1000-1255(2009)03-0223-04

Properties of fluoroelastomer-graft-maleic anhydride compatibilized fluoroelastomer/thermoplastic polyurethane blends

Dong Lijie（College of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China）　 Wang Ying（College of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China）　 Yang Jian（College of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China）　 Xiong Chuanxi （College of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China）　

Abstract：The mechanical properties and dynamic mechanical properties of fluoroelastomer (FKM)/ thermoplastic polyurethane (TPU) blend compatibilited by FKM-graft-maleic anhydride (FKM-g-MAH) were experimentally investigated.The results showed that the comprehensive mechanical properties reached the best when the mass fraction of FKM-g-MAH was 15%.After adding FKM-g-MAH,the compatibility between FKM and TPU in FKM/TPU blend was improved,and the damping capacity was superior to FKM.
Keywords：fluoroelastomer;grafting;maleic anhydride;thermoplastic polyurethane;blend;com-patibilization;mechanical property;dynamic mechanical property