Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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A Study on the Flame Retardance and Electrical Properties of Silicone Composites

실리콘 복합체의 내화 및 전기 특성에 관한 연구

  • Published : 2003.09.30
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Abstract

Silicone composites for high voltage insulator (HVI SC) were prepared by adding aluminum trihydrate(ATH) treated by surface treatment agent to base silicone compound at the ratio oi 100:20, 100:40, 100:60, 100:80, and 100:100, respectively And also, ATH was treated by various surface treatment agents, such as stearic arid, acryl silane, and vinyl silane under compounding process. Mechanical properties and electrical properties were investigated for the various contents of ATH and surface-treatment agents. Mechanical properties such as tensile strength, elongation, and tear strength decreased as the load of ATH increased. Volume resistivity, AC break down strength, and tracking resistance for HVI SC containing ATH treated by vinyl silane were better than those for HVI SC containing ATH treated by other surface treatment agents, such as stearic acid and acryl silane. Polymer-filler interaction of silicone composites according to surface treatment agents was studied by measuring bound rubber contend(BR). From the experimental results, BR of silicone composite containing ATH treated with vinyl silane was higher than that of the others. The degree of rule for silicone composite was investigated using Rheometer. Maximum torque of silicone composites contaning ATH treated with vinyl silane was higher than that of silicone composite contaning ATH treated with other surface agents.

배합고무에 각종 표면처리제로 처리한 수산화 알루미늄을 무게비 100:20, 100:40, 100:60, 100:80 및 100:100으로 배합하여 고압애자용 실리콘 복합체(HVI SC)를 제조하였다. 배합 공정에서 지방산, 아크릴 실란 및 비닐 실란등의 표면처리제로 수산화 알루미늄을 표면처리하였다. 수산화알루미늄의 첨가량 및 표면처리제의 종류에 따른 기계적 특성 및 전기적 특성을 연구하였다. 수산화 알루미늄의 첨가량이 증가하면서 인장강도, 신장율 및 인열강도는 감소하였으며, 비닐 실란으로 표면처리한 수산화 알루미늄을 첨가한 HVI SC의 인장강도 및 탄성율은 지방산 및 아크릴 실란을 사용한 HVI SC 보다 우수하였다. 또한 비닐 실란을 사용한 HVI SC의 체적저항, 절연파괴강도 및 내트래킹 특성이 지방산 및 아크릴 실란을 사용한 HVI SC 보다 우수하였다. 표면처리제의 종류에 따른 실리콘 복합체의 고분자 충전작용은 결합고무 함량으로 검토하였다. 실험의 결과로는 비닐 실란을 표면처리제로 사용한 실리콘 복합체의 결합고무 함량이 다른 표면처리제를 사용한 것 보다 높았다 표면처리제의 종류에 따른 실리콘 복합체의 가교밀도는 Rheometer로 측정하였다 비닐 실란을 표면처리한 수산화 알루미늄을 충진한 실리콘복합체의 최대토크가 다른 표면처리제를 사용한 것들 중에 가장 높았다.

Keywords

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