纳米凹凸棒土的表面修饰及表征  

The Surface Modification and Characterization of Nano-Attapulgite

作　　者：宋仁峰[1] 杨利营[1] 盛京[1] 沈宁祥[1] 康文韬[1] 

机构地区：[1]天津大学材料科学与工程学院,天津300072

出　　处：《硅酸盐通报》2003年第3期36-39,48,共5页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金项目 ( 2 0 0 740 2 4)

摘　　要：在超声分散的条件下 ,通过溶胶 -凝胶法制备了表面硅烷修饰的凹凸棒土纳米粒子(nano -attapulgite)。红外光谱 (FTIR)、X射线光电子能谱 (XPS)、透射电镜 (TEM)、热失重 (TGA)等研究方法表明 ,硅烷偶联剂 (VTES)与凹凸棒土纳米微粒表面的残余羟基反应 ,形成了硅烷包覆的凹凸棒土纳米微粒 ,大约有 12 %的VTES包覆在纳米凹凸棒土的表面。最后给出了硅烷表面修饰凹凸棒土纳米微粒的结构模型。Under the condition of ultrasound dispersion,nano attapulgite was modified by silane coupling gent.By means of TEM,XPS and FTIR,it was found that 12% silane coupling agent was coupled on the surface of nano attapulgite.At last,the mechanism of reaction and the structural model of the silane capped nano attapulgite were proposed

关 键 词：纳米凹凸棒土 表面修饰 表征 超声分散 溶胶—凝胶 硅烷偶联剂 

分 类 号：TQ170.7[化学工程—硅酸盐工业]