摘要
介绍了聚氨酯的组成、结构及微相分离特性。综述了软段的种类、质量分数、相对分子质量 ,以及硬段的组成、结构、质量分数对聚氨酯微相分离程度的影响。聚氨酯的微相分离是一个松弛过程 ,不仅与热力学因素有关 。
The composition,structure,and microphase separation characterization of polyurethanes are introduced.The influence factors on microphase separation of polyurethane are reviewed,including type,concentration,and molecular weight of soft segment as well as composition structure,concentration and length of hard segment.Microphase separation of polyurethane is a relaxation process,affected by not only thermodynamics factors but also kinetics process.
出处
《聚氨酯工业》
2001年第1期4-8,共5页
Polyurethane Industry
关键词
聚氨酯
微相分离
软段
硬段
动力学
结构
polyurethane
microphase separation
soft segment
hard segment
kinetics
