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采用乙烯-醋酸乙烯酯共聚物（EVA）作为聚丙烯（PP）/高密度聚乙烯（HDPE）共混体系的增容剂，通过冲击实验、拉伸实验、示差量热扫描仪（DSC）和扫描电镜（SEM），系统地研究了共混体系的性能与其形态结构之间的关系。结果表明，EVA是PP/HDPE共混物较好的增容剂，EVA可以使PP、HDPE的晶相结构受到一定程度的破坏，增加PP和HDPE的相容性，同时共混物的冲击韧性明显提高。
Using ethylene-vinyl acetate copolymer (EVA) as compatibilizer for PP / HDPE blends, the impact strength, tensile test, differential scanning calorimeter (DSC) Scanning electron microscopy (SEM) was used to systematically study the relationship between the properties of the blends and their morphological structure. The results show that EVA is a good compatibilizer for PP / HDPE blends. EVA can damage the crystal structure of PP and HDPE to a certain degree, and increase the compatibility of PP and HDPE. Meanwhile, the impact toughness Significantly improved.