EVA增容PP/HDPE共混体系的形态结构与性能  

MOPHOLOGY AND PROPERTIES OF EVA-COMPATIBILIZED PP/HDPE BLENDS

作　　者：张育英[1] 郝广杰[1] 郭天瑛[1] 张莹[1] 宋谋道[1] 张邦华[1] 

机构地区：[1]吸附分离功能高分子材料国家重点实验室

出　　处：《离子交换与吸附》2000年第5期449-453,共5页Ion Exchange and Adsorption

摘　　要：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。：EVA was used as a compatibilizer for polypropylene (PP)/high-density polyethylene (HDPE) blends. The relationships between properties and morphology of PP/HDPE/EVA blends were investigated by impact testing, stress-strain behavior, DSC and scanning electron microscopy (SEM). Experimental results indicate that EVA is a good compatibilizer for PP/HDPE blends. With the increase of EVA, the crystal structures of PP, HDPE are destroyed to a certain extent, the compatibility is improved and the impact strength of the blend is increased remarkably.

关 键 词：增容剂 EVA PP/HDPE共混物 形态结构 性能 

分 类 号：O631.1[理学—高分子化学]