| Title |
Study on Insulation Performance of Epoxy Micro Composites with Co-filled Fillers |
| Authors |
전영택(Youngtaek Jeon) ; 지용진(Youngjin Ji) ; 변영훈(Younghoon Byun) ; 김명진(Myungchin Kim) |
| DOI |
https://doi.org/10.5370/KIEE.2019.68.11.1375 |
| Keywords |
Micro composites; Dielectric constant; Dielectric loss; AC breakdown field |
| Abstract |
In this paper, essential properties that affect electrical insulation performance of epoxy micro composites were studied. In particular, the effect of adding co-filled micro sized fillers to epoxy composites were explored. The fillers considered in this study include 40 [um] BN, 22 [um] SiO2, 5 [um] Al2O3 and 5 [um] TiO2. For each composite, dielectric constant, dielectric loss, tracking resistance and breakdown field intensity were tested. When BN and SiO2 particles were added, the dielectric constant and the dielectric loss increased. By co-filling TiO2 and Al2O3 particles to the BN/Epoxy composite, a change in dielectric properties were observed.
Different performance among epoxy composites were observed depending on characteristics of the co-filled filler. Experiment results demonstrated the effectiveness of epoxy composites with co-filled micro particles. Results of this research could contribute to optimized design of epoxy composites for improved insulation performance. |