摘要
聚酰亚胺/无机杂化膜比纯聚酰亚胺膜具有更好的热稳定性、力学性能和透气性能。介绍了影响溶胶-凝胶法制备聚酰亚胺/无机杂化膜的7个主要因素,包括成膜聚合物形式、催化剂、成膜基底、热处理及亚胺化、无机相前体、无机组分含量及相容性。分析了聚酰亚胺结构特性与气体分离性能之间的关系,认为无机纳米粒子的引入使聚酰亚胺在热稳定性、机械性能及透气性能等方面均有明显的改善和提高。指出今后在无机粒子形态、粒径的控制以及无机组分对透气性改善的作用方面还需要继续研究。
Polyimide/inorganics hybrid membranes have more excellent thermal stability, mechanical property and gas permeability than pure polyimide membranes. Seven major factors influencing preparation of polyimide/inorganics hybrid membranes with sol-gel method are introduced. They are types of the polymers, catalysts, substrates, heat treatment and imidization, precursors of the inorganic phase, content of the inorganic compositions and compatibility. The relationships between the structure characters of the polyi...
出处
《现代化工》
CAS
CSCD
北大核心
2002年第S1期13-17,共5页
Modern Chemical Industry
