PP-g-MA对PP/纳米氢氧化镁复合材料流变性能的影响  

Effects of PP-g-MA on the Microstructure and Rheological Properties of Polyproplene/PP-g-MA/ Nano-Magnesium Hydroxide Composites

作　　者：许莉莉[1] 

机构地区：[1]武汉工程大学材料科学与工程学院,湖北武汉430073

出　　处：《上海塑料》2011年第3期46-50,共5页Shanghai Plastics

摘　　要：以马来酸酐接枝改性聚丙烯(PP-g-MA)作为界面改性剂制备了PP/PP-g-MA/纳米氢氧化镁(MH)复合材料。采用扫描电子显微镜(SEM)和毛细管流变仪研究了PP-g-MA对复合材料微观结构和流动性能的影响。结果表明:PP-g-MA的加入充当了MH粒子与PP基体的界面层,改善了两者的界面相互作用,提高了纳米MH粒子在PP中的均匀分散性,从而显著改善PP/MH复合体系的流动性能。Polypropylene/nano-magnesium hydroxide（PP/MH） composites with maleic anhydride grafted polypropylene（PP-g-MA） as an interfacial compatilizer were prepared by melt extrusion compounding and injection molding.The morphological structure and rheological behaviours were characterized by SEM and apillary rheometer.The results of SEM showed that the introduction of PP-g-MA could get more even distribution of the nano-MH in PP matrix.Compared to the PP/MH composites,the unnotched impact strength of PP/PP-g-MA/MH composites were significantly enhanced by introduction of PP-g-MA.Compared to the PP/MH composites,it exhibited significant improvement in melt flow for PP/PP-g-MA/MH ternary composites.

关 键 词：聚丙烯 氢氧化镁 微观结构 流变性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]