アルミナ/エポキシ樹脂複合材料の熱伝導率と粘度に及ぼす反応希釈剤の影響

抄録

Thermal management is more and more challenge since the development of modern electronic devices. This object of this paper is to investigate the thermal conductivity and viscosity of polymer composites with high packing ratios of alumina particles. Alumina/epoxy composites were fabricated by using planetary centrifugal mixer. Thermal conductivity of alumina/epoxy composites was measured by steady state method and the viscosity was evaluated by using tuning fork vibro viscometer. The effects of alumina volume fraction and addition of reactive diluent on the thermal conductivity and viscosity of the composites were discussed. As a result, the thermal conductivity and viscosity of alumina/epoxy composites increased since the alumina volume fraction increased. Moreover, the thermal conductivity of alumina / epoxy composites was affected by types and amounts of reaction diluent. 75vol% alumina/epoxy composites with 30wt% SR-8EGS reaction diluent in the matrix showed the highest thermal conductivity.