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

Journal of Petrochemical Universities ›› 2010, Vol. 23 ›› Issue (2): 34-36.

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

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

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^*

辽宁石油化工大学石油化工学院, 辽宁抚顺113001

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)

Abstract

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.

Key words:

Sol-gel method, , SiO₂, , Preparation, , Inorganic membrane

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

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.

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.

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

溶胶-凝胶法制备二氧化硅无机膜的工艺研究

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