主要研究了加工工艺对PP/弹性体/纳米CaCO3三元复合材料的力学性能的影响。发现经二阶共混后材料的力学性能明显优于一阶共混。在二阶共混时,分别以PP和弹性体为载体,制备两种不同核-壳结构的CaCO3母粒。结果表明:相同纳米CaCO3质量含量时,以PP为载体的母粒所制得的材料的冲击强度明显高于以弹性体为载体的母粒所制得的材料;以极性弹性体为母粒载体所制得的材料的冲击强度优于以非极性弹性体母粒载体所制得的材料。 The effects of processing technology on the mechanical properties of PP / elastomer / nano-CaCO3 ternary composites were mainly studied. It is found that the mechanical properties of the material after the second-order blending are obviously better than the first-order blending. In the second-order blending, two kinds of CaCO3 masterbatches with different core-shell structure were prepared by using PP and elastomer as carrier respectively. The results show that when the same nano-CaCO3 mass content, the impact strength of the material prepared with PP as carrier is obviously higher than that of the elastomer with carrier. The impact strength of the resulting material is better than that of the non-polar elastomeric masterbatch carrier.