石油化工高等学校学报

石油化工高等学校学报 ›› 2010, Vol. 23 ›› Issue (2): 34-36.

• 石油化工 • 上一篇    下一篇

溶胶-凝胶法制备二氧化硅无机膜的工艺研究

李小霞,江云波,张克铮*   

  1. 辽宁石油化工大学石油化工学院, 辽宁抚顺113001
  • 收稿日期:2010-01-25 出版日期:2010-06-25 发布日期:2010-06-25
  • 作者简介:李小霞(1985 -), 女, 河南新郑市, 在读硕士
  • 基金资助:
    辽宁省教育厅科技项目(2009A436)

Technology Study on SiO2 Inorganic Membranes Prepared by Sol-Gel Method

  1. School of Petrochemical Technology, Liaoning Shihua University, Fushun Liaoning 113001, P.R.China
  • Received:2010-01-25 Published:2010-06-25 Online:2010-06-25

摘要: 以正硅酸乙酯为原料, 乙醇为溶剂, 盐酸为催化剂, N, N -二甲基酰胺为模板剂, 采用溶胶-凝胶工
艺在Al2O3 基体上制备SiO2 无机膜。考察了涂膜方式、溶胶的醇硅物质的量比及停放时间对膜性能的影响。结果
表明, 采用浓稀结合的方式涂膜可提高制膜效率及膜的性能;较大的醇硅物质的量比虽然可以获得较好的膜, 但制
膜周期较长;溶胶停放时间过长, 会使膜的性能下降。

关键词: 溶胶-凝胶法 , SiO2 , 制备 , 无机膜

Abstract:

SiO2 inorganic membranes were prepared on Al2O3 wafer substrates by Sol-Gel method using TEOS as raw material,alcohol as solvent,hydrochloric acid as catalyst and N,N-dimethylform amide as template.The effect of coating method,alcohol-silicon molar ratio of sol and retention time on performance of the sol were systematically analyzed. The results show that using combination of concentrated-dilute coating method can improve coating efficiency and performance of the membranes. Though larger alcohol-silicon molar ratio can get better membranes,the cycle of membranes preparation is longer. Retention time of the sol is too long, so that performance of the membranes will decrease.

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引用本文

李小霞,江云波,张克铮. 溶胶-凝胶法制备二氧化硅无机膜的工艺研究[J]. 石油化工高等学校学报, 2010, 23(2): 34-36.

LI Xiao-xia, JIANG Yun-bo, ZHANG Ke-zheng. Technology Study on SiO2 Inorganic Membranes Prepared by Sol-Gel Method[J]. Journal of Petrochemical Universities, 2010, 23(2): 34-36.

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