应用化学 ›› 1994, Vol. 0 ›› Issue (1): 96-98.

• 研究论文 • 上一篇    下一篇

担载多孔Al2O3膜的制备

王公应, 陈义均, 郭慎独   

  1. 中国科学院成都有机化学研究所 成都 610041
  • 收稿日期:1992-12-22 修回日期:1993-06-30 出版日期:1994-02-10 发布日期:1994-02-10

Preparation of Supported Poroux Alumina Membrane

Wang Gongying, Chen Yijun, Guo Shendu   

  1. Chengdu lnstitute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041
  • Received:1992-12-22 Revised:1993-06-30 Published:1994-02-10 Online:1994-02-10

摘要: 研究了溶胶-凝胶法在多孔陶瓷载体上制备多孔Al2O3膜的工艺条件。发现在孔直径为1.1和1.6um的多孔陶瓷载体上必须经过多次重复浸渍干燥-焙烧过程,才能制备出担载均匀的多孔Al2O3膜。对溶胶和多孔陶瓷载体进行适当的化学改性后,能够减少浸渍-干燥-焙烧过程重复的次数。对Al2O3膜的孔径大小和透气性能进行了表征。

关键词: 担载膜, 多孔Al2O3膜, 制备, 溶胶-凝胶法

Abstract: The porous alumina menbranes supported on porous ceramic of pore size 1.1~1. 6um were prepared by the sol-gel method,following repeated impregnating-drying-calcin-ing procedures. The number of repeating cycles could be reduced when the sols were modi-fied by PVA and La (NO3)3.

Key words: supported membrane, porous alumina membrane, preparation, sol-gel method