SiO2 aerogels prepared by ambient pressure drying with ternary azeotropes as components of pore fluid

被引：22

作者：

Guo, Yaqin ^{[1
]}

Wang, Hui ^{[1
]}

Zeng, Lingke ^{[1
]}

机构：

[1] S China Univ Technol, Coll Mat Sci & Engn, Guangzhou 510640, Peoples R China

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2015年 / 428卷

关键词：

Ternary azeotrope method; Silica aerogels; Hydrophobic; Surface modification; SILICA AEROGELS;

D O I：

10.1016/j.jnoncrysol.2015.07.030

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Silica aerogels were synthesized by two-step sol-gel polymerization of tetraethoxysilane (TEOS) in alcohol and using ambient pressure drying with ternary azeotropes as components of pore fluid. The structure and physical properties of these aerogels were investigated by several experimental methods, such as scanning electron microscopy (SEM), thermo-gravimetric and differential scanning calorimetry (TG-DSC), Fourier transform infrared spectroscopy (FTIR), specific surface area analyzer and pore size analyzer. The results indicated that silica aerogels are coherent, hydrophobic and nano-porous solid. The high specific surface was 838.6 m(2)/g. (c) 2015 Elsevier B.V. All rights reserved.

引用

页码：1 / 5

页数：5

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