A CONSTITUTIVE THEORY FOR POLYOLEFINS IN LARGE-AMPLITUDE OSCILLATORY SHEAR

被引:29
作者
GIACOMIN, AJ [1 ]
JEYASEELAN, RS [1 ]
机构
[1] TEXAS A&M UNIV,DEPT MECH ENGN,RHEOL RES LAB,COLLEGE STN,TX 77843
关键词
D O I
10.1002/pen.760350906
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A versatile transient network theory has been used as a framework for the interpretation of large amplitude oscillatory behavior of polyolefin melts in terms of their entanglement kinetics. The model reasonably describes all previously published measurements of the large amplitude oscillatory shear behavior on melts. Seven polyolefins are examined, three new materials and four previously studied. A qualitative difference in the nonlinear behavior in large amplitude oscillatory shear has been identified between the polyethylenes examined and the two other polyolefins, polystyrene and polyisobutylene.
引用
收藏
页码:768 / 777
页数:10
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