Research progress on preparation of silica aerogel and its composite using ethanol/water as solvent system

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  • School of Materials Science and Engineering,Jilin Jianzhu University,Changchun 130118

Received date: 2020-05-28

  Revised date: 2020-10-21

  Online published: 2021-01-27

Abstract

Ethanol/water is a solvent system for preparing silica aerogel and its composite materials under normal pressure,which replaces the complicated solvent replacement and surface modification processes in the traditional preparation process,shortening the preparation cycle and reducing production costs.Starting from the silica source for the aerogel preparation,under normal pressure conditions,TEOS,silica sol,water glass,MTMS/MTES,etc.Research progress on the preparation of the silica aerogel and its composite materials with single silica source and composite silica source using ethanol/water as solvent.The silica aerogel and its composite materials prepared by this process have lower density and thermal conductivity,higher specific surface area,and excellent mechanical properties.

Cite this article

Zhao Hongkai, Liu Ming, Liu Yifu . Research progress on preparation of silica aerogel and its composite using ethanol/water as solvent system[J]. New Chemical Materials, 2021 , 49(1) : 218 -222 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.01.048

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