Characteristics of Gel Time and Dielectric Strength of Epoxy Composite According to the Mixing Ratio of Micro-Fillers

Dong-Hun Oh, Ho-Seung Kim, Jae-Hun Shim, Young-Ho Jeon, Da-Won Kang and Bang-Wook Lee
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Dong-Hun Oh: Department of Electronic Engineering, Hanyang University, Hanyangdaehak-ro 55, Ansan 15588, Korea
Ho-Seung Kim: Department of Electronic Engineering, Hanyang University, Hanyangdaehak-ro 55, Ansan 15588, Korea
Jae-Hun Shim: Advanced Materials System Team 2, KUKDO Chemial, Gasan digital 2-ro, 61, Seoul 08588, Korea
Young-Ho Jeon: Advanced Materials System Team 2, KUKDO Chemial, Gasan digital 2-ro, 61, Seoul 08588, Korea
Da-Won Kang: Advanced Materials System Team 2, KUKDO Chemial, Gasan digital 2-ro, 61, Seoul 08588, Korea
Bang-Wook Lee: Department of Electronic Engineering, Hanyang University, Hanyangdaehak-ro 55, Ansan 15588, Korea

Energies, 2020, vol. 13, issue 19, 1-13

Abstract: The dielectric strength and gel time of epoxy composites vary with the mixing ratio of epoxy resin, hardener, additives, filler, etc., and especially the gel time affects the productivity and economics of ultra-high-voltage (UHV) equipment. However, previous studies focused only on the dielectric strength of epoxy composites for the reliability of UHV equipment. Therefore, a study considering both the dielectric strength and gel time of the epoxy composite is required. In this paper, the characteristics of the gel time and dielectric strength of the epoxy micro-composites according to the mixing ratio of silica (SiO 2 ) and alumina (Al 2 O 3 ) micro-fillers without changing the mixing ratio of epoxy resin and hardener are analyzed. Experimental results show that the gel time decreased and the dielectric strength increased as the mixing ratio of the SiO 2 micro-filler increased. Therefore, it is concluded that the gel time can be controlled by changing the mixing ratio of micro-fillers without changing the mixing ratio of the epoxy resin and hardener. In addition, experimental data can be used as basic data for economical production considering both the reliability and productivity of UHV power equipment.

Keywords: epoxy composite; MICRO-filler; SiO 2; Al 2 O 3; mixing ratio; gel time; dielectric strength (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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