应用化学 ›› 1992, Vol. 0 ›› Issue (3): 94-96.

• 研究简报 • 上一篇    下一篇

等离子体改性提高PTMSP膜氧氮选择性

林晓, 闻久绵, 陈捷, 徐纪平   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1991-07-02 修回日期:1991-09-04 出版日期:1992-06-10 发布日期:1992-06-10

ENHANCEMENT OF OXYGEN-NITROGEN PERMSELECTIVITY OF PTMSP MEMBRANES BY PLASMA TECHNIQUE

Lin Xiao, Wen Jiumian, Chen Jie, Xu Jiping   

  1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1991-07-02 Revised:1991-09-04 Published:1992-06-10 Online:1992-06-10

摘要: 膜材料中迄今以聚三甲基硅基丙炔(PTMSP)的透气速率最大[1],其氧透过速率比PDMS高一个数量级,但氧氮分离系数小,透气性不稳定。改性PTMSP,以提高其透气选择性和透气速率稳定性引起人们的极大关注[2-6]。本文报道,在外极管式电容耦合反应器中,用六甲基二硅氧烷(M2)等离子体改性PTMSP膜表面,可保持其较高的氧气透过速率的同时,显著提高氧氮选择性。

关键词: PTMSP, 等离子体改性, 氧氮选择性, 二硅氧烷

Abstract: PTMSP membranes were modified by plasma technigue in the presence of hexamethyldisiloxane.The oxygen permeation rate Po2 and oxygen-nitrogen separation coefficient αO2/N2 of the modified membranes were 1590 barrer and 3.16, respectively.

Key words: PTMSP, plasma modification, oxygen-nitrogen permselectivity, disiloxane