用于分离 N_2-H_2的聚砜平板膜性能和结构研究  

A Study on N_2-H_2 Separation Performance and Cross-section Structure of Flat-sheet Polysulfone Membrane

作　　者：刘桂香[1] 栗广勇[1] 徐仁贤[1] 

机构地区：[1]中国科学院大连化学物理研究所

出　　处：《膜科学与技术》1991年第1期63-72,共10页Membrane Science and Technology

摘　　要：本文讨论以N—甲基毗咯烷酮(NMP)和聚枫(PSF)体系制备的平板膜.采用硅橡胶涂敷膜表面微孔和缺陷,考察了聚砜浓度,凝胶剂中二甲基乙酰胺(DMAC)用量,混合溶剂,添加剂的种类,对N_2-H_2分离性能的影响,以及通过扫描电镜观察所得膜的形态结构的关系。In this paper,a study has been carried out on the flat-sheet membrane formation with polysulfone (PSF)/N-methyl-2-pyrrolidone (NMP).The membrane performance and the cross-section structurewas correlated by varying the composition of PSF/NMP,contents of DMAC in coagulation bath(?)mixed solvents and additives,etc.The membrane performances were tested by silico(?)e rubber surfacecoating method for gas separation.The membrane cross-section structures were obtained by usingscanning Electric Microscope.

关 键 词：聚砜 气体分离膜 NMP 性能 结构 

分 类 号：TQ326.55[化学工程—合成树脂塑料工业]