Preparation and preliminary characteristic evaluation of epoxy/alumina nanocomposites

Masahiro Kozako*, Shunichi Yamano, Ryoichi Kido, Yoshimichi Ohki, Masanori Kohtoh, Shigemitsu Okabe, Toshikatsu Tanaka

*この研究の対応する著者

研究成果: Paper査読

50 被引用数 (Scopus)

抄録

Epoxy/ alumina nanocomposites were newly prepared by dispersing 3, 5, and 7 weight % nano-scale boehmite alumina particles in a bisphenol-A epoxy resin. Dispersion of alumina particles in the nanocomposite specimen was observed by scanning electron microscopy (SEM). Flexural properties, dynamic viscoelasticity, permittivity, partial discharge (PD) resistance, and electrical breakdown time were investigated for the nanocomposite specimens in comparison with those of an epoxy resin without nanofillers. The following results were obtained. The nanocomposite specimens keep high transparency similar to the pure resin. Alumina particles with a size below about 50 nm are homogeneously dispersed in the epoxy matrix. Due to dispersion of the nanofillers in the specimens, flexural properties, PD resistance, and electrical breakdown time are improved. The nanocomposites exhibit almost no change in glass transition temperature and permittivity.

本文言語English
ページ231-234
ページ数4
出版ステータスPublished - 2005 10 7
イベント2005 International Symposium on Electrical Insulating Materials, ISEIM 2005 - Kitakyushu, Japan
継続期間: 2005 6 52005 6 9

Conference

Conference2005 International Symposium on Electrical Insulating Materials, ISEIM 2005
国/地域Japan
CityKitakyushu
Period05/6/505/6/9

ASJC Scopus subject areas

  • 工学(全般)
  • 材料科学(全般)

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