Preparation and preliminary characteristic evaluation of epoxy/alumina nanocomposites

被引：40
|
作者：
Kozako, M [1 ]
Yamano, S [1 ]
Kido, R [1 ]
Ohki, Y [1 ]
Kohtoh, M [1 ]
Okabe, S [1 ]
Tanaka, T [1 ]
机构：
[1] Waseda Univ, Grad Sch Informat Prod & Syst, Wakamatsu Ku, Kitakyushu, Fukuoka 8080135, Japan
来源：
PROCEEDINGS OF THE 2005 INTERNATIONAL SYMPOSIUM ON ELECTRICAL INSULATING MATERIALS, VOLS, 1-3 | 2005年
关键词：
D O I：
10.1109/ISEIM.2005.193385
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：
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 rim. 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.
引用
收藏
页码：231 / 234
页数：4
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