对苯二异氰酸酯型TPU的动态力学分析  

The dynamic mechanical analysis of TPU based on P-phenyl diisocyanate

作　　者：苏丽丽[1] 石雅琳[1] 张振江[1] 赵岩[1] 韦永继[1] 

机构地区：[1]黎明化工研究院,洛阳471000

出　　处：《化工新型材料》2011年第11期80-81,84,共3页New Chemical Materials

基　　金：国家科技支撑计划课题(课题编号:2009BAE77B02)

摘　　要：考察了异氰酸酯、多元醇和扩链剂种类对对苯二异氰酸酯(PPDI)型热塑性聚氨酯弹性体(TPU)机械性能和动态力学性能的影响。结果表明,PPDI型TPU的耐热和内生热性能均优于MDI体系,软段分子结构的不同会影响TPU的热稳定性,HQEE可提高材料的耐热性能。The effects of the kinds of isocyanate, polyols and chain extender on the mechanical and dynamic me- chanical properties of TPU based on PPDI were studied simply. The results indicated that TPU based on PPDI perform better than TPU based on MDI on the property Of themal resistance; the thermal stability of TPU can be affected by the difference of the structure of soft segment molecule; HQEE can enhance the heat resistance of TPU.

关 键 词：热塑性聚氨酯弹性体(TPU) 对苯二异氰酸酯(PPDI) 动态力学分析(DMA) 

分 类 号：TQ334[化学工程—橡胶工业]