【作者】 陈晓东； 周南桥； 张海； 欧阳伦炜； 魏国通；

【Author】 Chen Xiaodong~(1,2) Zhou Nanqiao~1 Zhang Hai~2 Ouyang Lunwei~2 Wei Guotong~2 (1.National Engineering Research Center of Novel Equipment for Polymer Processing,South China University of Technology,Guangzhou,Guangdong 510640,China;2.GuangZhou SCUT Bestry Technology Joint-stock Co.Ltd,Guangzhou,Guangdong 510640,China)

【机构】 华南理工大学聚合物新型装备国家工程研究中心聚合物成型加工工程教育部重点实验室； 华南理工大学广州华工百川科技股份有限公司；

【摘要】 聚氨酯中软硬段的热力学不相容性及分子链段的运动形成了独特的微相分离结构,从而赋予了材料较高的模量、高伸长率和回弹等性能。本文对聚氨酯微相分离结构的表征方法进行了归纳,重点介绍了热分析技术的应用,希望能够为聚氨酯弹性体微相结构的有效表征方式的选择提供参考。更多还原

【Abstract】 The thermodynamical incompatibility between hard and soft segments and mobility of molecule segments result in an unique micro-phase separated structure of polyurethane materials,which leads to good properties such as higher modulus,better elongation and resilience.Most of characterization methods for polyurethane micro-phase sepa- rated structure were presented,and the application of thermal analysis technique were mainly discussed.Maybe it is helpful for the choice of an available characterization method for micro-phase separated structure.更多还原