Rheology of EPR/PP blends

被引：41
|
作者：
Mighri, F [1 ]
Huneault, MA [1 ]
Ajji, A [1 ]
Ko, GH [1 ]
Watanabe, F [1 ]
机构：
[1] Natl Res Council Canada, Inst Ind Mat, Boucherville, PQ J4B 6Y4, Canada
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2001年 / 82卷 / 09期
关键词：
polymer blends; EPR; PP; molecular weight; rheology; viscoelasticity; Tsenoglou model;
D O I：
10.1002/app.2057
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The rheological behavior of polypropylene, PP, ethylene-propylene copolymer, EPR, and EPR/PP blends was studied. Zero-shear viscosity and elastic relaxation time were determined by least-squares fits by using a Carreau-Yasuda model with Arrhenius temperature dependency. The effect of PP and EPR molecular weight, ethylene ratio in EPR copolymer (E/EPR), and EPR concentration on the zero-shear viscosity and elasticity of EPR/PP blends was determined experimentally. Molecular weight effects are compared to theoretically expected relationships. EPR concentration effect and E/EPR ratio effects agree well with predictions made by using the Tsenoglou model. (C) 2001 John Wiley & Sons, Inc.
引用
收藏
页码：2113 / 2127
页数：15
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