Abstract: C a-montomrillonite was intercalation modified with cationic surfactant hexadecyl trimethyl ammonium bromide (CTAB) and nonionic surfactant alkylphenol ethoxylates (OP -10) in aqueous suspension. The performances of Ca-montomrillonite-CTAB-OP-10 samples were characterized by XRD, FTIR, SEM and TG. The mechanism of modification was discussed. The results show that CTAB and OP -10 can successfully intercalate into Ca -montomrillonite. The expansion degree of layer and modified effect of organic montmorillonite are better than those of Ca -montomrillonite -CTAB, and Ca -montomrillonite -CTAB -OP -10 samples exhibit better thermal stability. The order of adding surfactant has no effect on modification of Ca-montomrillonite.

Keywords： organic montmorillonite; cationic surfactant; nonionic surfactant; modification; thermal stability

中图分类号：TD97          文献标志码：A

文章编号：1008-5548（2014）04-0056-04

DOI:10.13732/j.issn.1008-5548.2014.04.013

收稿日期：2014-03-25， 修回日期：2014-04-09，在线出版时间：2014-08-28。

基金项目：大学生创新创业训练计划项目（北京市级），编号 ：2013AB017。

第一作者简介：尹琦璕（1993—），女，本科生，研究方向为材料化学。E-mail:446596467@qq.com。

通信作者简介：张泽朋（1960—），女，博士，教授，研究方向为矿物材料改性及应用、复合材料制备及应用。电话: 13051601122，E-mail:zhangzp@cugb.edu.cn。