Abstract: Different types of organic montmorillonite powders were made by mechanochemistry method with surfactants of cetyl trimethyl ammonium bromide, sodium dodecyl sulfate and sodium stearate alone or in combination. XRD, FTIR and surface contact angle were used to analyze and characterize the montmorillonite and obtained samples. The mechanism of preparing organic montmorillonite by mechanochemistry was researched. The results show that the mechanism of mechanochemistry is different from that of the wet modification. Under the action of mechanochemistry, the surfactant is combined with montmorillonite layer. Two montmorillonite layers and surfactant combine to form one new unit. The montmorillonite layers are stripped. The montmorillonite particles are finally modified.

Keywords: mechanochemistry; montmorillonite; organic intercalation; modification mechanism

中图分类号：TD985 文献标志码：A

文章编号：1008-5548（2014）01-0007-06

DOI:10.3969/j.issn.1008-5548.2014.01.002

收稿日期：2013-05-11， 修回日期：2013-06-07，在线出版时间：2014-02-24。

基金项目：国家“十二五”科技支撑计划项目，编号：2011BAB03B06。

第一作者简介：谢超 （1991—）， 男， 本科生， 研究方向为材料化学。E-mail：xiechao829@163.com。

通信作者简介：张泽朋（1960—），女，教授，研究方向为矿物材料改性与应用。 电话：18910770224，E-mail:zhangzp@cugb.edu.cn。