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Investigation of electrical phenomena of inorganic-filler/LDPE nanocomposite material

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4 Author(s)
Murata, Y. ; J-Power Syst. Corp., Ibaraki, Japan ; Sekiguchi, Y. ; Inoue, Y. ; Kanaoka, M.

A nanocomposite material, composed of nano-size inorganic-filler added to a low-density polyethylene (LDPE), was subjected to electrical property investigations. The volume resistibility of LDPE, under 80 kV/mm DC field at 90 C, increases by the power of 10 due to the addition of only a few percent of nano-filler. On the other hand, lightning impulse breakdown strength was estimated by using a sphere-plate electrode system not dependent on MgO content in the area of 5 phr or less. From these results, it can be considered that the addition of nano-size inorganic-filler drastically raises the volume resistibility of LDPE without reducing the LDPE's original impulse breakdown strength.

Published in:

Electrical Insulating Materials, 2005. (ISEIM 2005). Proceedings of 2005 International Symposium on  (Volume:3 )

Date of Conference:

5-9 June 2005