用广角Ｘ射线衍射（ＷＡＸＤ）、差示扫描量热仪（ＤＳＣ）、小角激光散射（ＳＡＬＳ）等手段研究了尼龙６／蒙脱土纳米复合材料的结晶行为．结果表明分散在尼龙６基体中的蒙脱土纳米粒子起成核剂的作用．蒙脱土的表面改性增加了蒙脱土和尼龙６分子之间的界面粘接，它具有阻碍尼龙６结晶的作用，使结晶活化能增加 The crystallization behavior of nylon 6 / montmorillonite nanocomposites was studied by means of wide angle X-ray diffraction (WAXD), differential scanning calorimeter (DSC) and small angle laser light scattering (SALS) The results show that montmorillonite nanoparticles dispersed in a nylon 6 matrix function as a nucleating agent. The surface modification of montmorillonite increases the interfacial adhesion between montmorillonite and nylon 6 molecules, which hinders the crystallization of nylon 6 and increases the activation energy of crystallization