利用未改性蒙脱土和两种季胺盐改性蒙脱土与尼龙(PA)6混合,成功制备得到了不同结构的PA6/蒙脱土纳米复合材料.X射线衍射图谱和力学性能分析表明,季胺盐改性剂可以插入蒙脱土片层之间,使蒙脱土片层扩张,层间距增大.与PA6相比,制备得到的三种纳米复合材料的力学性能都有不同程度的提高.改性蒙脱土与PA6表现出良好的相容性,呈现出剥离型纳米复合结构.%Nanocomposites of nylon 6 with montmorillonite clay, untreated and treated with two different quaternary ammonium salts were obtained.The results of mechanical properties and X-ray diffraction of nanocomposites indicated that the quaternary ammonium salts were intercalated between the layers of clay, causing an expansion of the interlayer spacing.The obtained nanocomposites showed better mechanical properties when compared to nylon 6.Apparently the treated clay were compatible with the polymer matrix and presented an exfoliated nanocomposite structure.
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