The Effect of Solvent on Drying Shrinkage of Novolac Xerogels

被引：6

作者：

Naseri, Iman ^{[1
]}

Kazemi, Ali ^{[1
]}

Bahramian, Ahmad Reza ^{[1
]}

Kashani, Mehdi Razzaghi ^{[1
]}

机构：

[1] Tarbiat Modares Univ, Fac Chem Engn, Dept Polymer Engn, Tehran, Iran

来源：

ULTRAFINE GRAINED AND NANO-STRUCTURED MATERIALS IV | 2014年 / 829卷

关键词：

xerogel; solvent; shrinkage; drying; CARBON AEROGELS;

D O I：

10.4028/www.scientific.net/AMR.829.182

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Three sets of novolac xerogel prepared with various solvents and the effect of solvent on drying shrinkage investigated. The results show that the polarity of solvent has profound effect on microstructure of gel. As the polarity of solvent increases, the ultimate particle size and pore size decrease and consequently, the higher capillary pressure exerts on gel and hence, more shrinkage observed.

引用

页码：182 / 186

页数：5

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