PP/POE/表面接枝改性nano-SiO_2复合材料的制备及性能研究  

Preparation and Properties of PP/POE/Grafted nano-SiO_2 Composites

作　　者：何玲玲[1] 卢凯杰 宁洋[1] 曲敏杰[1] 

机构地区：[1]大连工业大学纺织与材料学院,辽宁大连116034

出　　处：《现代塑料加工应用》2014年第2期13-16,共4页Modern Plastics Processing and Applications

基　　金：大学生创新创业训练项目(2013003)资助

摘　　要：采用接枝改性的方法,通过熔融共混工艺分别制备聚丙烯(PP)/乙烯-1-辛烯共聚物(POE)/SiO2-g-聚甲基丙烯酸甲酯(PMMA),SiO2-g-聚丙烯酸丁酯(PBA)纳米复合材料,研究了纳米复合材料的结构与性能。结果表明:纳米SiO2接枝物的加入有利于PP异相成核,使PP球晶尺寸减小,晶界模糊,冲击性能显著提高。当SiO2-g-PMMA,SiO2-g-PBA的含量为2份时,纳米复合材料的冲击强度分别为39.3kJ/m2和60.0kJ/m2,加工性能得到改善。PP/POE/SiO2-g-PMMA and PP/POE/SiO2-g-PBA were prepared by the method of grafting and melt blending, the phase morphology and performance of nano composites were investigated. The results show that the addition of grafted polymers is propitious to shape of form PP,the spherulite size of PP decreases, the grain boundary is in- distinct, the impact properties of nano composites obviously improves. The impact strength of PP/POE/SiO2-g-PMMA and PP/POE/SiO2-g-PBA are 39. 3 kJ/m2 and 60.0 kJ/m2 re-spectively when the dosage of modified nano-SiO2 is 2 phr, the processing performances of nano composites are improved obviously.

关 键 词：聚丙烯 乙烯-1-辛烯共聚物 纳米二氧化硅 接枝 复合材料 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]