聚乙烯熔体流动速率的测定及有关参数的研究  

Measurement Of melt flow index and study Of related parameters in PE

作　　者：黄凤鸣 李加 

机构地区：[1]第五三研究所

出　　处：《工程塑料应用》1993年第1期33-36,共4页Engineering Plastics Application

摘　　要：通过聚乙烯多种牌号熔体流动速率MFR值的测定,根据高聚物熔体的流变行为和poiseuille方程,用MFR值对粘度η_切进行了定量计算;借助高分子理论,指出以MFR值表征分子量及分布的可行性;利用参数之间的依赖性,阐述了熔体流动速率对聚乙烯树脂在加工成型中的意义。The Melt Flow Rate(MFR) of sevsral kinds polythylene(PE)were measured. The viscosity(η_a)was calculated by means of flow characteristic in high molecular polymer. Poiseuille' s equation and MFR. According to the high molecular theory, the molecular weight and molecular weight distribution can be showed by MFR. The effect of MFR on the proeassing property in PE resin was described by the dependence from among the parameters.

关 键 词：聚乙烯 熔体粘度 熔体流动速率 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]