Comparison of space charge behavior between polypropylene and polyethylene

被引：0
|
作者：
Nakane, E [1 ]
Kaneko, K [1 ]
Mizutani, T [1 ]
Takino, H [1 ]
Ishioka, M [1 ]
机构：
[1] Nagoya Univ, Dept Elect Engn & Comp Sci, Nagoya, Aichi 4648603, Japan
来源：
Proceedings of the 2005 International Symposium on Electrical Insulating Materials, Vols, 1-3 | 2005年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper we investigated space charge and electrical conduction in polypropylene (PP), H-PP and M-PP which are homopolymer and copolymer with 3-3.5 % ethylene, respectively. Both space charge distribution and charging current were affected by the copolymerization of ethylene which enhanced electrical conduction. The amount of space charge in Al/PP/SC was the largest around 40 C. The charge carriers injected from the semiconducting (SC) electrode became dominant with increasing temperature. Their results were compared with those of low-density polyethylene (LDPE). LDPE showed much higher current than PP. The difference in space charge distribution among H-PP, M-PP and LDPE was explained in terms of mobilities of charge carriers. The field dependence of charging currents was explained by Schottky injection.
引用
收藏
页码：568 / 571
页数：4
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