CHEMICALLY CROSSLINKED POLYETHYLENE - MODULUS-TEMPERATURE RELATIONS AND HEAT STABILITY

被引:27
作者
NARKIS, M
TOBOLSKY, AV
机构
[1] Frick Chemical Laboratory, Princeton University, Princeton, New Jersey
关键词
D O I
10.1002/app.1969.070131101
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 MT black concentration on the shear modulus of low‐density crosslinked polyethylene can be approximated by the Guth–Gold equation, at temperatures below the crystalline melting zone. Above the melting zone shear modulus does not depend practically on the carbon black level. At high temperatures both degradation and crosslinking reactions are taking place. The variation of the shear modulus with temperature due to these reactions is shown for various carbon black loadings. A preliminary chemical stress‐relaxation study at 250°C is presented. Copyright © 1969 John Wiley & Sons, Inc.
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页码:2257 / &
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