中文摘要：

对新疆尉犁蛭石进行钠化改型后用系列烷基季铵盐进行了有机插层处理，利用XRD对样品进行表征。结合季铵盐阳离子的理论几何尺寸，研究了季铵盐阳离子在蛭石晶层的结构和排布方式。结果表明，不同链长烷基季铵盐阳离子在蛭石晶层排列方式的演化途径不同，季铵盐用量和季铵盐阳离子的性质能影响季铵盐阳离子在蛭石晶层的排布方式。当季铵盐用量较低时，季铵盐阳离子在蛭石晶层形成平卧排列，当季铵盐用量较高时，季铵盐阳离子在蛭石晶层形成倾斜排列，且直链烷基越长，季铵盐阳离子在蛭石晶层间越易形成倾斜排列。

英文摘要：

Vermiculite from Weili, Xinjiang, was modified by sodium and intercalated by N-trimethylammonium bro- mide （CnTAB）. The arrangement modeling patterns of CnTA＊ in organic pillared vermiculite were studied by XRD and geometry size. The results revealed the different evolution routes about the arrangement model of organic cations in the vermiculite layer. The factors that affect the arrangement model of organic cations in vermiculite layer are the dosage of quaternary ammonium and the character of quaternary ammonium. It is lateral with little ammonium. It is of paraffin type with mass ammonium. The paraffin-type forms easily, as the chains become longer.