MODELS OF SHEAR-THICKENING BEHAVIOR IN PHYSICALLY CROSS-LINKED NETWORKS

被引：161

作者：

MARRUCCI, G ^{[1
]}

BHARGAVA, S ^{[1
]}

COOPER, SL ^{[1
]}

机构：

[1] UNIV DELAWARE,DEPT CHEM ENGN,NEWARK,DE 19718

来源：

MACROMOLECULES | 1993年 / 26卷 / 24期

关键词：

D O I：

10.1021/ma00076a027

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Shear-thickening effects are often observed in physically cross-linked networks formed by polymeric chains having a few localized, energetically favored interactions. We find that a possible explanation for these effects is the non-Gaussian behavior of the chains stretched by the shear flow. Two network models for unentangled telechelic chains are proposed, which differ in the way unattached chains relax after deformation. One of the models correctly portrays the qualitative shear-thickening features commonly observed.

引用

页码：6483 / 6488

页数：6

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