NDLI: Comparison of Dielectric Properties of Low-density Polyethylene/MgO Composites with Different Size Fillers

Content Provider	IEEE Xplore Digital Library
Author	Ishimoto, K. Tanaka, T. Ohki, Y. Sekiguchi, Y. Murata, Y. Gosyowaki, M.
Copyright Year	2008
Description	Author affiliation: Dept. of Electr. Eng. & Biosci., Waseda Univ., Shinjuku (Ishimoto, K.; Ohki, Y.) \|\| Grad. Sch. of Inf., Production & Syst., Waseda Univ., Kita-Kyushu (Tanaka, T.) \|\| J-Power Syst. Corp., Hitachi (Sekiguchi, Y.; Murata, Y.; Gosyowaki, M.)
Abstract	Two kinds of low-density polyethylene (LDPE) composites were prepared by adding semi-spherical MgO fillers different in diameter, one being around several ten nm and the other being several mum, and their dielectric properties were compared. At all the measurement temperatures, the conductivity is decreased and the permittivity is increased by the addition of fillers, irrespective of their sizes. However, the conductivity decrease is more significant and the permittivity increase is suppressed more in the case of the nm fillers. In addition, a drastic increase in dielectric loss factor at low frequencies is suppressed more significantly by the addition of the nm fillers. While the formation of packet-like charge observed in LDPE, which is assumed to appear at the front of the high-conductivity region that proceeds from one electrode toward the counter one, is suppressed significantly by both fillers, the effect is more significant in the nanocomposites. This means that the nanofillers suppress the increase in conductivity induced by the voltage application more effectively.
Starting Page	208
Ending Page	211
File Size	2204409
Page Count	4
File Format	PDF
ISBN	9781424425488
DOI	10.1109/CEIDP.2008.4772819
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-26
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Polyethylene Temperature measurement Dielectric losses Conductivity measurement Dielectric measurements Permittivity measurement Size measurement Frequency Electrodes Counting circuits
Content Type	Text
Resource Type	Article

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