Glass-cloth/Polyester 복합 절연재료의 유전특성에 관한 연구

Abstract

폴리에스테르 수지의 물성특성, 유전특성 및 전기적 측면에서 최적의 경화 조건을 규명한 다음 이러한 폴리에스테르 수지의 최적 경화 조건을 적용한 유리섬유강화 복합재료(Glass-cloth/Polyester Composite Materials)의 최적 제작조건 및 계면 활성제의 효과에 대한 연구를 행하였다.

본 연구의 실험결과로부터 다음과 같은 사실을 추출할 수 있었다. (1) 폴리에스테르 수지의 경화조건은 물성특성 및 유전특성에 커다란 영향을 미치고 있음을 알수 있엇다. (2) 폴리에스테르 수지의 최적의 경화조건은 120℃에서 2시간 1차 경화를 행한 후, 200℃에서 13시간 2차경화를 행한 시료에서 얻어 졌다. (3) 복합 절연재료 제작에 있어 계면 결합제의 인장특성은 약 2배 정도의 효과가 나타남을 알 수 있었다. (4) 전기적 및 기계적특성의 관점에서, Glasscloth/Polyester 복합 절연재료의 최적 제작조건은 복합 절연재료를 120℃에서 2시간 1차 경화를 행한 후, 200℃에서 약 10시간 2차 경화를 행한 경우이다.

The optimum curing condition of polyester resin for good mechanical, dielectric and electrical properties was investigated. With the obtained curing condition applied, the optimum fabrication condition and the effect of silane coupling agent for Glass-cloth/polyester composite materials were also studied.

The following results were obtained. (1) it is found that curing condition of polyester resin affected physical and dielectric properties. (2) The optimum conditions for fabrication of polyester resin was obtained as post-curing at 200℃ for 13 hours after curing at 120℃ for 2 hours. (3) In the fabrication of composite insulating materials, electrical propreties were improved by about 10% and mechanical tensile properties about two times in the sample with 0.2% water solution of epoxy silane coupling agent treatment as compared eith the case without epoxy silane coupling agent treatment. (4) From the view point of electrical and mechanical properties, optimum conditions for fabrication of Glass-cloth/polyester composite insulating materials were found as post-curing at 200℃for about 10 hours after curing at 120℃ for 2 hours.

The optimum curing condition of polyester resin for good mechanical, dielectric and electrical properties was investigated. With the obtained curing condition applied, the optimum fabrication condition and the effect of silane coupling agent for Glass-cloth/polyester composite materials were also studied.

The following results were obtained. (1) it is found that curing condition of polyester resin affected physical and dielectric properties. (2) The optimum conditions for fabrication of polyester resin was obtained as post-curing at 200℃ for 13 hours after curing at 120℃ for 2 hours. (3) In the fabrication of composite insulating materials, electrical propreties were improved by about 10% and mechanical tensile properties about two times in the sample with 0.2% water solution of epoxy silane coupling agent treatment as compared eith the case without epoxy silane coupling agent treatment. (4) From the view point of electrical and mechanical properties, optimum conditions for fabrication of Glass-cloth/polyester composite insulating materials were found as post-curing at 200℃for about 10 hours after curing at 120℃ for 2 hours.