中文摘要：

采用Avrami方程研究了纳米碳酸钙／聚丙烯／聚苯乙烯（nano CaCO3／PP／PS）复合材料的等温结晶动力学。研究结果表明，nanoCaCO3填充PP／PS增容共混物复合材料的结晶速率明显高于nanoCaCO3／PP／PS共混物复合材料的，而且结晶速率对结晶温度的依赖性显著降低，大分子相容剂对PP等温结晶行为的影响大于nanoCaCO3。

英文摘要：

The Avrami equation is used to investigate the isothermal crystallization behavior of composites of polypropylene/polystyrene （PP/PS） blend and compatibilized blend filled with nano CaCO3. results show that the crystallization rate of composites of compatibilized PP/PS blend filled with nano CaCO3 is higher than that of PP/PS blend filled with nano CaCO3. The dependence of crystallization rate of composites of compatibilized PP/PS blend filled with nano CaCO3 on crystallization temperatures is remarkably lower than that of composites of PP/ PS blend filled with nano CaCO3. The effect of macromolecular compatibilizers on isothermal crystallization behavior of PP is larger than that of nano CaCO3.