A facile method to modify bentonite nanoclay with silane

被引：16
作者：
Sujani B. Y. Abeywardena
Srimala Perera
K. M. Nalin de Silva
Nadeeka P. Tissera
机构：
[1] University of Moratuwa,Department of Chemical and Process Engineering, Faculty of Engineering
[2] University of Moratuwa,Division of Polymer, Textile and Chemical Engineering Technology, Institute of Technology
[3] Sri Lanka Institute of Nanotechnology (Pvt) Ltd,Department of Chemistry
[4] Nanotechnology and Science Park,undefined
[5] University of Colombo,undefined
来源：
International Nano Letters | 2017年 / 7卷 / 3期
关键词：
Bentonite nanoclay; Covalent modification; Nanospace; Silane; Surface; Spectroscopy;
D O I：
10.1007/s40089-017-0214-2
中图分类号：
学科分类号：
摘要：
Immobilization of smectite clay onto a desirable surface has received much attention, since its nanospace can be utilized for many applications in material science. Here, we present an efficient method to functionalize surface of bentonite nanoclay (BNC) through the grafting of 3-aminotriethoxysilane (APTES). Infrared spectroscopy and elemental analysis confirmed the presence of organic chains and amine groups in modified nanoclay. XRD analysis confirmed grafting of APTES on the surface of bentonite nanoclay without intercalation. The accomplishment of the surface modification was quantitatively proved by TGA analysis. Modified BNC can covalently couple with different material surfaces, allowing its nanospace to be utilized for intercalation of cations, bio-molecules, and polymeric materials, to be used in advanced military aerospace, pharmaceuticals, and many other commercial applications.
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页码：237 / 241
页数：4
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