Gel formation during sol–gel synthesis of silicon dioxide

被引：0
|
作者：
E. P. Simonenko
A. V. Derbenev
N. P. Simonenko
V. G. Sevastyanov
N. T. Kuznetsov
机构：
[1] Russian Academy of Sciences,Kurnakov Institute of General and Inorganic Chemistry
[2] Samara State Aerospace University (National Research University),undefined
来源：
Russian Journal of Inorganic Chemistry | 2015年 / 60卷
关键词：
Dynamic Viscosity; Tetraethoxysilane; Lower Wave Number; Hydrolysis Catalyst; Ultrafine Silica;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effects of water and catalyst (formic acid) concentrations and temperature on tetraethoxysilane hydrolysis, followed by gel formation, have been studied. The catalyst concentration is found to have a stronger effect on the variation rate of dynamic viscosity of the system compared to the effect of water concentration. The thermal behavior of the thus-prepared xerogels has been studied in an air flow; distinctions have been noticed for samples whose initial dispersion-bound systems were formed at room temperature.
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页码：1444 / 1451
页数：7
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