无机材料学报

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反应结合制备增强氧化铝中空纤维膜

李健生; 郝艳霞; 王连军; 赵宝昌   

  1. 南京理工大学化工学院 南京 210094
  • 收稿日期:2000-12-21 修回日期:2001-02-26 出版日期:2002-01-20 网络出版日期:2002-01-20

Preparation of Strengthened Alumina Hollow Fiber Membrane by RBAO Technique

LI Jian-Sheng; HAO Yan-Xia; WANG Lian-Jun; ZHAO Bao-Chang   

  1. Chem. Eng. Sch.; Nanjing University of Science and Technology; Nanjing 210094; China
  • Received:2000-12-21 Revised:2001-02-26 Published:2002-01-20 Online:2002-01-20

摘要: 介绍了采用反应结合(RBAO)技术和干-湿法纺丝工艺相结合制备α-Al中空纤维陶瓷膜的方法.利用透射电镜、扫描电镜、热重分析、差热分析、X射线衍射等手段研究了膜的机械性能、微观结构,同时对反应结合过程及物相变化进行了分析.用该方法制备的中空纤维膜机械性能有显著的提高,抗压强度为90MPa,弯曲强度41MPa.

关键词: 反应结合, 氧化铝, 中空纤维陶瓷膜, 制备

Abstract: The preparation method of a-alumina hollow fiber membrane by Reaction Bonding of Aluminum Oxide (RBAO) technique combining with dry-wet spin process was introduced in this paper. The mechanical property, microstructure, reaction process and phase transform of membrane were investigated by transmission electron microscopy, scanning electron microscopy, thermogravimetric analysis, differential thermal analysis and X-ray diffraction. The mechanical property is improved remarkably. The compress and bend strength is 90 and 41MPa.

Key words: RBAO, alumina, hollow fiber ceramic membrane, preparation

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