Space charge formation in LDPE/MgO nano-composite film under ultra-high DC electric stress

被引：13

作者：

Musashi Institute of Technology, 1-28-1, Tamazutsumi, Setagaya-ku, Tokyo 158-5587 ^{[1
]}

不详 ^{[2
]}

不详 ^{[3
]}

不详 ^{[4
]}

机构：

[1] Musashi Institute of Technology, Setagaya-ku, Tokyo 158-5587, 1-28-1, Tamazutsumi

[2] J-power Systems Corp., Hitachi 319-1414, 5-1-1, Hitaka-cho

来源：

IEEJ Trans. Fundam. Mater. | 2006年 / 11卷 / 1084-1089期

关键词：

Low-density polyethylene (LDPE); Magnesium oxide (MgO); Nano-composite; Pulsed electro-acoustic (PEA) method; Space charge;

D O I：

10.1541/ieejfms.126.1084

中图分类号：

学科分类号：

摘要：

Space charge characteristics under high DC electric field of more than 100 kV/mm in a nano-composite film of the low density polyethylene (LDPE) mixed with a nano-size filler of MgO were studied using a pulsed electro-acoustic (PEA) method. To measure the space charge distribution using the PEA system under the high electric field in a thin film, a spatial resolution of the PEA system was improved. Using the improved system, the time dependence of space charge formation in LDPE and LDPE/MgO nano-composite under the high electric field was observed. It is found that a huge amount of packet-like charge generation in LDPE makes a local electric field in the bulk higher. On the other hand, there is almost no such huge packet-like charge observed in LDPE/MgO with MgO content of more than 0.5 phr, while it was observed in that of 0.2 phr. It is found that the generation of the packet-like charge under the high electric field strongly depends on the content of MgO in the LDPE/MgO nano-composite.

引用

页码：1084 / 1089

页数：5

共 8 条

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