Process and mechanism of surface modification of silica with silane coupling agent APTS

doi:10.3969/j.issn.0438-1157.2014.07.022

Abstract

Abstract: After modification using gamma aminopropyltriethoxysilane (APTS), the silica surface demonstrates unique performance in the applications to rubber, plastics, catalyst, chromatography column, adsorbent, biologicals and pharmaceuticals. A large number of literatures focus on APTS modification of silica in the specific application background for achieving ideal and controllable modification. Summarizing these scattered results and discoveries can effectively promote research further on a new stage. Based on an analysis of literatures, the mechanism of reaction, process of modification, kinetics of reaction, stability and structure of the modified layer are reviewed. The existing problems in the current state of the research and the directions for further research are proposed.

Key words: silica, surface, multiphase reaction, silane coupling agent, graft, modification

摘要： 二氧化硅表面经过硅烷偶联剂γ-氨丙基三乙氧基硅烷（APTS）修饰后，在橡胶、塑料、催化剂、色谱柱、吸附剂、生物和医药等领域中具有独特的应用性能，大量文献结合特定应用体系研究二氧化硅表面修饰APTS的基本规律，以实现理想可控的修饰效果。总结这些分散性研究结果，有利于在新的基础上有效地促进研究的深入。在分析文献的基础上，系统地阐述了二氧化硅表面修饰APTS的反应机理、修饰工艺、反应动力学、修饰层稳定性和结构形貌等方面的研究进展，提出了目前研究还存在的问题和进一步的研究方向。

关键词: 二氧化硅, 表面, 多相反应, 硅烷偶联剂, 接枝, 修饰

CLC Number:

TQ031

QIAO Bing, GAO Han, WANG Tingjie, JIN Yong. Process and mechanism of surface modification of silica with silane coupling agent APTS[J]. CIESC Journal, 2014, 65(7): 2629-2637.

乔冰, 高晗, 王亭杰, 金涌. 二氧化硅表面修饰硅烷偶联剂APTS的过程和机制[J]. 化工学报, 2014, 65(7): 2629-2637.

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