STUDY OF RESPONSE THERMALLY STIMULATED OF LDPE/CB COMPOSITE BY OF THE TECHNIQUE OF THERMALLY STIMULATED DEPOLARIZATION CURRENT (TSDC).

被引:0
|
作者
Kowalski, Edemir Luiz [1 ]
Robert, Rene [2 ]
Ruvolo Filho, Ademar [3 ]
机构
[1] Univ Fed Parana, Ctr Politecn, Inst Tecnol Desenvolvimento, Dept Alta Tensao, BR-81531990 Curitiba, Parana, Brazil
[2] Univ Fed Parana, Ctr Politecn, Dept Eletricidade, BR-81531990 Curitiba, Parana, Brazil
[3] Univ Fed Sao Carlos, Dept Quim, BR-13560970 Sao Carlos, SP, Brazil
来源
QUIMICA NOVA | 2009年 / 32卷 / 05期
关键词
TSDC; LDPE; carbon black; LOW-DENSITY POLYETHYLENE; CARBON-BLACK; TEMPERATURE; RELAXATIONS; POLYMERS;
D O I
10.1590/S0100-40422009000500007
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
STUDY OF RESPONSE THERMALLY STIMULATED OF LDPE/CB COMPOSITE BY OF THE TECHNIQUE OF THERMALLY STIMULATED DEPOLARIZATION CURRENT (TSDC). The thermally stimulated depolarization current (TSDC) in a range of temperature from 84 to 373 K, has been applied to study the depolarization current of polyethylene and polyethylene composites in form of film and filled with commercial or oxidative surface treatment carbon black. The diagrams of TSDC obtained show that the composite in which the carbon black had received oxidative surface treatment reducing on an average depolarization current intensity in a magnitude order if compared to the composite with commercial carbon black. Therefore in the area between a and beta transitions the difference is accentuated by reaching a peak 55 times in a temperature of 240 K. The difference in results is explained in terms of molecular interactions neighboring of carbon black particles.
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页码:1115 / U44
页数:7
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