面向气体分离膜应用的多孔陶瓷基体研究  

Porous ceramic substrate for gas separation membranes

作　　者：张瑞 王红志[2] 帅菁[3] 

机构地区：[1]泰州中油燃气有限责任公司,江苏泰州225721 [2]江苏兴达钢帘线股份有限公司,江苏泰州225721 [3]南京理工大学泰州科技学院,江苏泰州225300

出　　处：《现代化工》2013年第7期81-84,共4页Modern Chemical Industry

摘　　要：在众多基体材料中,多孔陶瓷由于化学和热稳定性较好而成为气体分离膜基体材料的首选,但一般陶瓷基体表面粗糙并存在裂纹、针孔等缺陷,增加了气体分离膜的制备难度,并对分离膜的性能产生不利的影响。笔者采用溶胶—凝胶法对多孔陶瓷基体表面进行修饰,有效地降低了表面粗糙度,同时把基体渗透率调整到适宜值,以得到面向气体分离膜应用的多孔陶瓷基体。Among the various substrate materials,porous ceramics are the most popular because of their superior chemical and thermal stability.However,the commonly used porous ceramic substrate surfaces are usually rough and have many defects,such as crack,pinhole,which increase the preparation difficulty of gas separation membrane and result in a great adverse affect on performance of gas separation membrane.In this study,the sol-gel method is used to modify the surface of the commonly used porous ceramics.The results show that the surface roughness is reduced substantially meanwhile the permeability of porous ceramic substrate is adjusted to the appropriate value to meet the equirements of gas separation membranes.

关 键 词：气体分离膜 多孔陶瓷基体 溶胶—凝聚法 制备 

分 类 号：TB383[一般工业技术—材料科学与工程]