Preparation of "green" composites by the sol-gel process:: In situ silica filled natural rubber

被引：64

作者：

Ikeda, Y ^{[1
]}

Kameda, Y ^{[1
]}

机构：

[1] Kyoto Inst Technol, Fac Engn & Design, Kyoto 6068585, Japan

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2004年 / 31卷 / 1-3期

关键词：

nano-composites; natural rubber; silica; sol-gel reaction; reinforcement;

D O I：

10.1023/B:JSST.0000047975.48812.1b

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：

Green composites with different amounts of in situ silica nano-particles were prepared by a sol-gel reaction of tetraethoxysilane (TEOS) in natural rubber (NR). The control of swelling degree of TEOS in NR and concentration of n-butylamine in water was useful to change the amount of generated in situ silica in the uncured NR matrix. In situ silica up to 42 parts per hundred rubber by weight (phr) was successfully filled in the NR matrix. The particle size of in situ silica became larger with the increase of silica content from ca. 10 nm to ca. 40 nm for 10 phr - 40 phr loadings in the NR matrix, respectively. Even when the amount of in situ silica content was high, the dispersion of in situ silica particles was more homogeneous than that of commercial silica (VN-3). The reinforcement effect of the in situ silica for NR vulcanizates increased with increasing the in situ silica content.

引用

页码：137 / 142

页数：6

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