两亲性纳米SiO2复合材料的合成

doi:10.3724/SP.J.1077.2011.01085

无机材料学报 ›› 2011, Vol. 26 ›› Issue (10): 1085-1089.DOI: 10.3724/SP.J.1077.2011.01085 CSTR: 32189.14.SP.J.1077.2011.01085

两亲性纳米SiO₂复合材料的合成

贾忠琦, 李晓萱, 肖正辉, 王文平, 曹楠楠

(合肥工业大学化工学院, 合肥 230009)

收稿日期:2010-12-09 修回日期:2011-03-08 出版日期:2011-10-20 网络出版日期:2011-09-20
作者简介:贾忠琦(1984-), 女, 硕士研究生. E-mail: jiazhongqi1210@yahoo.cn
基金资助:
国家自然科学基金(50673023)

Synthesis of Amphiphilic Silica Nanocomposites

JIA Zhong-Qi, LI Xiao-Xuan, XIAO Zheng-Hui, WANG Wen-Ping, CAO Nan-Nan

(School of Chemical and Engineering, Hefei University of Technology, Hefei 230009, China)

Received:2010-12-09 Revised:2011-03-08 Published:2011-10-20 Online:2011-09-20
Supported by:
National Natural Science Foundation of China (50673023)

摘要/Abstract

摘要： 以3-缩水甘油醚氧丙基三甲氧基硅烷改性过的纳米SiO₂作为原料, 通过季铵化反应得到两亲性的纳米SiO₂复合材料. 利用傅里叶红外(FTIR)、热失重分析(TGA)、X射线光电子能谱(XPS)等检测手段研究了合成材料的结构; 通过透射电镜(TEM)对合成的尺寸及微观形貌进行了分析; 利用其在水/甲苯混合体系中的分散探讨了合成材料的两亲性. 结果表明, 合成的纳米SiO₂复合材料表面接枝的有机成分约为11wt%, 该纳米SiO₂复合材料具有很好的两亲性.

关键词: 纳米SiO₂, 两亲性, 纳米复合材料, 表面改性

Abstract: Silica modified by γ-glycidyloxypropyltrimethoxysilane was used as precursor to prepare amphiphilic silica nanocomposites by quaterisation. The structure of the as-prepared products was characterized by means of fourier transform infrared (FTIR), thermogravimetric analysis (TGA) and X-ray photoelectron spectroscope (XPS). Transmission electron microscopie (TEM) was used to characterize the morphology of the nanocomposites. The results showed that the content of the organic components at the silica surface calculated from TGA data was 11wt%. TEM provided direct evidence for the well amphiphilicity, and the same conclusion was confirmed by the photographs of the pristine SiO₂and surface-modified SiO₂ nanocomposites in water/toluene mixed layers.

Key words: nano-SiO₂, surface modification, nanocomposites, amphiphilicity

中图分类号:

TQ127
O613

贾忠琦, 李晓萱, 肖正辉, 王文平, 曹楠楠. 两亲性纳米SiO₂复合材料的合成[J]. 无机材料学报, 2011, 26(10): 1085-1089.

JIA Zhong-Qi, LI Xiao-Xuan, XIAO Zheng-Hui, WANG Wen-Ping, CAO Nan-Nan. Synthesis of Amphiphilic Silica Nanocomposites[J]. Journal of Inorganic Materials, 2011, 26(10): 1085-1089.

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两亲性纳米SiO₂复合材料的合成

Synthesis of Amphiphilic Silica Nanocomposites

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