用溶胶－凝胶法原位生成SiO2增强橡胶

段先健　张立群　伍社毛　王一中

摘要:介绍了用溶胶－凝胶法原位生成SiO₂纳米粒子增强橡胶的技术，以及该技术的3种不同方法:(1)在硫化胶中生成原位SiO₂;(2)在非硫化胶中生成原位SiO₂;(3)在硫化反应中生成原位SiO₂。同时对溶胶－凝胶技术的反应原理和影响因素作了探讨。总结了原位SiO₂增强橡胶复合材料的结构特征(粒径及其分布、分散性、界面状态)及由此导致的物理机械性能。分析了这种技术的优缺点及其在橡胶工业中的应用前景。
关键词:溶胶－凝胶法；原位二氧化硅；增强橡胶；复合材料；述评
中图分类号:TQ330.1^＋5　文献标识码:A
文章编号:1000－1255(2000)03－0148－05

In－ situ silica reinforcing rubber by sol－ gel method

Duan Xianjian， Zhang Liqun， Wu Shemao and Wang Yizhong
(College of Materials Science and Engineering， Beijing University of Chemical Technology)

Abstract:A technique of in－ situ silica nanoparticles reinforcing rubber by sol－ gel method was reviewed with 27 references. There were three methods of the technique: (1) preparing in－ situ silica in rubber after curing; (2) preparing in－ situ silica in rubber before curing; (3) preparing in－ situ silica during curing. At the same time， the mechanism and the effect factors of this technique were discussed. And the structure features (sizes， size distributions， dispersion and interface conditions) of the in－ situ silica reinforced rubber composites and the mechanical properties they led to were summarized. Its advantages and disadvantages as well as the prospects in rubber industry were analyzed.
Keywords: sol－ gel method; in－ situ silica; reinforcing rubber; composite; review

作者简介：段先健，男，1974年生，硕士生。
段先健（北京化工大学材料科学与工程学院，100029）
张立群（北京化工大学材料科学与工程学院，100029）
伍社毛（北京化工大学材料科学与工程学院，100029）
王一中（北京化工大学材料科学与工程学院，100029）

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收稿日期：1999－05－31；修订日期：1999－12－30。