增容剂含量对PP/EVOH共混物流变性能的影响  

Effect of compatibilizer content on rheological behaviour of PP/EVOH blends

作　　者：吕妍妍[1] 胡国胜[1] 李迎春[1] 

机构地区：[1]中北大学高分子与生物工程研究所,山西太原030051

出　　处：《弹性体》2013年第2期57-60,共4页China Elastomerics

基　　金：校企合作项目

摘　　要：采用熔融共混法制备了聚丙烯/乙烯-乙烯醇共聚物(PP/EVOH)共混物,利用毛细管流变仪对共混物的流变行为进行了研究。结果表明:PP/EVOH共混物为假塑性流体,呈现出切力变稀的现象。马来酸酐接枝乙烯-辛烯共聚物(POE-g-MAH)的加入增大了PP/EVOH共混物的粘流活化能,说明共混物对温度的敏感性较强。The polypropylene/ethylene-sodium acrylate vinyl alcohol copolymer blends were prepared by melt blending. The rheological behavior of the blends was studied by capillary rheometer. The results showed that PP/ /EVOH blends are pseudo plastic fluid and all specimens exhibit shear thinning behavior. The viscous activation energy of PP/EVOH blends increased with the addition of POE-g-MAH, which proved that the blends are temperature-sensitive.

关 键 词：聚丙烯 马来酸酐接枝乙烯-辛烯共聚物 乙烯-乙烯醇共聚物 流变性能 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]