Transactions on Electrical and Electronic Materials

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Improvement of Electrical and Thermal Characteristics of Nano-Micro Epoxy Composite

  • Cho, Sung-Hoon (School of Electrical Engineering, Chungbuk National University) ;
  • Kim, Yu-Min (School of Electrical Engineering, Chungbuk National University) ;
  • Kwon, Jung-Hun (School of Electrical Engineering, Chungbuk National University) ;
  • Lim, Kee-Joe (School of Electrical Engineering, Chungbuk National University) ;
  • Jung, Eui-Hwan (LS Cable Corporation) ;
  • Lee, Hung-Kyu (Department of Electrical Engineering, Chungju National University) ;
  • Shin, Pan-Seok (Department of Electrical Engineering, Hongik University)
  • Received : 2011.04.11
  • Accepted : 2011.07.04
  • Published : 2011.08.25
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Abstract

Polymer nanocomposite has been attracting more attention as a new insulation material because homogeneous dispersion of nano-sized inorganic fillers can improve various properties significantly. In this paper, various kinds of epoxy-based nanocomposites were made, and the AC breakdown strengths of Nano filler and micro-$SiO_2$ filler mixtures of epoxy-based composites were analyzed using sphere-to-sphere electrodes. Moreover, nano- and microfiller combinations were investigated as an approach to practical application of nanocomposite insulation materials. Its composition ratio was 100 (resin):82 (hardener):1.5 (accelerator). AC breakdown tests were performed at room temperature ($25^{\circ}C$), $80^{\circ}C$, and $100^{\circ}C$ in the vicinity of $T_g$ ($90^{\circ}C$). Thermal conductivity was measured using TC-30.

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References

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