Charge trapping in gamma irradiated low-density polyethylene

被引：25
|
作者：
Suljovrujic, E
Kostoski, D
Dojcilovic, J
机构：
[1] Vinca Inst Nucl Sci, YU-11001 Belgrade, Yugoslavia
[2] Fac Phys, Belgrade, Yugoslavia
来源：
POLYMER DEGRADATION AND STABILITY | 2001年 / 74卷 / 01期
关键词：
charge trapping; gamma irradiation; dielectric properties; low density polyethylene;
D O I：
10.1016/S0141-3910(01)00150-1
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 influence of gamma irradiation in two different atmospheres, air and distilled water on charge trapping in LDPE has been studied through dielectric loss (tan delta) analysis in the temperature range from 25 to 325 K and using thermally stimulated discharge current (TSDC) measurements. The radiation induced oxidation was observed using IR spectroscopy. The intensity and the position of the gamma and beta dielectric relaxation maxima were correlated with maxima of TSDC measurements, and found to be strongly dependent upon the changes in the microstructure of the amorphous phase and on the surface of the crystallites induced by oxidation and crosslinking. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：167 / 170
页数：4
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