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Frequency and temperature dependence of AC electrical properties of graphitized carbon-black filled rubbers
被引:0
|作者:
Jawad, SA
Alnajjar, A
机构:
关键词:
graphitized carbon-black;
impedance;
dielectric constant;
phase angle;
relaxation;
D O I:
暂无
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 a.c. electrical properties of graphitized carbon-black filled rubbers were investigated in the temperature range 25-85 degrees C and in the frequency range 10-10(6)Hz. The volume fraction of the filler varied from 15 to 60%. The a.c. impedance was found to decrease dramatically with increasing filler content for volume fractions higher than 30%. A relaxation transition with an activation energy of 26.4-50 kJ/mol was observed only in the samples containing 45% and 60% of the fillers.
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页码:208 / 212
页数:5
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