Gel formation during sol-gel synthesis of silicon dioxide

被引：11
|
作者：
Simonenko, E. P. [1 ,2 ]
Derbenev, A. V. [1 ]
Simonenko, N. P. [1 ]
Sevastyanov, V. G. [1 ,2 ]
Kuznetsov, N. T. [1 ,2 ]
机构：
[1] Russian Acad Sci, NS Kurnakov Gen & Inorgan Chem Inst, Moscow 119991, Russia
[2] Natl Res Univ, Samara State Aerosp Univ, Samara, Russia
来源：
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2015年 / 60卷 / 12期
基金：
俄罗斯基础研究基金会;
关键词：
CERAMIC MATERIALS; COMPOSITES; COATINGS; NANOPARTICLES; ZIRCONIUM; LAYERS; WATER; SIO2;
D O I：
10.1134/S0036023615120220
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
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.
引用
收藏
页码：1444 / 1451
页数：8
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