SLOW CRACK-GROWTH IN POLYETHYLENE - A REVIEW

被引：84

作者：

BROWN, N ^{[1
]}

LU, XC ^{[1
]}

HUANG, YL ^{[1
]}

QIAN, RZ ^{[1
]}

机构：

[1] UNIV PENN,DEPT MAT SCI & ENGN,PHILADELPHIA,PA 19104

来源：

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1991年 / 41卷

关键词：

D O I：

10.1002/masy.19910410107

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Slow crack growth in a wide variety of polyethylenes have been investigated. The quantitative relationship between: (1) the external variables such as stress, temperature, stress intensity and J-integral; (2) the morphological variable such as density and crystal size and (3) molecular variables such as molecular weight, branch density and branch distribution and the rate and time to failure for slow crack growth will be presented. The kinetics of slow crack growth is correlated with the microstructural changes. A fundamental description of slow crack growth is given in terms of tie molecules and the stress field on the boundary of the craze from which fracture initiates.

引用

页码：55 / 67

页数：13

共 16 条

[1]

BROWN N, 1988, KINETICS MICROSCOPIC

[2]

HUANG Y, IN PRESS J POLYM SCI

[3] THE EFFECT OF MOLECULAR-WEIGHT ON SLOW CRACK-GROWTH IN LINEAR POLYETHYLENE HOMOPOLYMERS [J].