分子结构规整的有机硅树脂致密膜,经控制裂解可制得具有较高选择透过性的气体分离膜.这种膜是一种多孔膜,其最可几孔径为0.6 nm,具有极窄的孔径分布,对气体分离机理为分子筛分.膜对H2/N2分离因子可达90,对O2/N2分离因子可达17,比常规裂解膜高3～5倍.本文着重讨论了有机硅致密膜制备条件对其裂解膜性能的影响.
参考文献
| [1] | Bhave R R.Inorganic membranes:Synthysis,characteristics and applications[M].New York:Van Nostrand Reinhold,1991:1-9. |
| [2] | Okubu T;Watanabe M;Kusakabe K et al.Preparation of γ-alumina thin membrane by sol-gel processing and its characterization by gas permeation[J].Journal of Materials Science,1990,25:4822-4835. |
| [3] | Ha H Y;Nam S W .Chemical vapor desposition of hydro-gen-permselective silica films on porous glass supports from tetraethylorthosilicate[J].Journal of Membrane Science,1993,85:279-290. |
| [4] | Koresh J E;Soffer A .The molecular sieve permselective membrane (I). Presentation of a new device for gas mixture seperation[J].Separation Science and Technology,1983,18:723. |
| [5] | Shusen Wang... .A selective silicon-based membrane formed by pyrolysis of silicon resin[J].Separation Science and Technology,1997(9):1603-1613. |
| [6] | 王树森;曾美云;王志忠.硅基裂解膜的制备及其孔径的控制[A].北京,1999 |
| [7] | Lee K H;Khang S J .Gas seperation by silicon based inorganic membrane at high temperature[J].Journal of Membrane Science,1992,66:119. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%