Effects of gamma irradiation on the stress relaxation of drawn ultrahigh molecular weight polyethylene

被引：10
|
作者：
Djokovic, V [1 ]
Kostoski, D [1 ]
Dramicanin [1 ]
Dudic, D [1 ]
机构：
[1] Vinca Inst Nucl Sci, YU-11001 Belgrade, Yugoslavia
来源：
RADIATION PHYSICS AND CHEMISTRY | 1999年 / 55卷 / 5-6期
关键词：
D O I：
10.1016/S0969-806X(99)00255-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Effects of high energy radiation on stress relaxation behavior of unoriented (lambda = 1) and oriented (lambda = 9) ultrahigh molecular weight polyethylene (UHMWPE) were investigated. As in a previous study, the stress relaxation is interpreted in terms of a model that consists of two thermally activated processes acting parallel. The first process is related to crystal and the second to the amorphous fraction. Application of the two-process model enabled separate studying of the influence of irradiation on viscoelastic behavior of these two fractions. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：605 / 607
页数：3
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