Water-based sodium borosilicate sols and their gelation-characterisation by viscosimetry, UV/VIS- and infrared spectroscopy

被引：18

作者：

Böschel, D ^{[1
]}

Roggendorf, H ^{[1
]}

机构：

[1] Univ Halle Wittenberg, Dept Engn Sci, D-06099 Halle Saale, Germany

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2002年 / 25卷 / 03期

关键词：

sol gel process; sodium silicate solutions; rheology; optical spectroscopy; boric acid;

D O I：

10.1023/A:1020283206199

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：

Sodium silicate solutions were mixed with boric acid in order to form sodium borosilicate gels. The gelation process was observed by dynamic oscillatory experiments. The effects of composition and temperature on the gel point are discussed. Furthermore, an indicator of the gel point for the water-based sodium borosilicate gels was found. The turbidity was investigated by UV/VIS spectroscopy and optical microscopy. Infrared spectroscopic measurements were applied to characterise the gelation process, too.

引用

页码：191 / 200

页数：10

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