PP/POE/纳米CaCO_3复合材料流变性能的研究  

Study on the Rheological Behavior of PP/POE/Nano CaCO_3 Composites

作　　者：张芳[1] 夏茹[1] 吴蕾[1] 杜春毅[1] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230039

出　　处：《中国塑料》2005年第2期26-30,共5页China Plastics

摘　　要：研究了聚丙烯/聚烯烃热塑性弹性体/纳米CaCO3(PP/POE/纳米CaCO3)复合材料的流变性能,探讨了纳米CaCO3、POE添加量、剪切速率和温度对复合材料黏度的影响。实验数据显示,在较低剪切速率下,随纳米CaCO3添加量的增加,体系熔体黏度增加;在较高剪切速率下,随纳米CaCO3添加量的增加,体系黏度降低;增加POE添加量,复合体系的熔体黏度增大;纳米CaCO3的加入使复合体系的非牛顿指数减小,非牛顿性增强。PP/POE/纳米CaCO3(100/10/10质量份数,下同)体系具有高流动性,熔体流动速率达19.58g/10min。The rheological behavior of the PP/POE/nano CaCO3 composites at different mass ratios was studied using a torque rheometer. With increasing nano CaCO3 content, the apparent viscosity of the melt increased at low shear rates and decreased at higher shear rates. The viscosity increased with increasing POE content. The composite melt exhibited shearing-thinning non-Newtonian behavior, with the nonNewtonian index decreased with the addition of nano CaCQ3.

关 键 词：聚丙烯 热塑性弹性体 纳米碳酸钙 流变学 高流动性 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]