板状・球状フィラーを用いたポリマー系複合材料の熱・力学特性

抄録

Polymer composites with high thermal conductivity offer new possibilities for thermal management in electric systems. The objective this paper is to study the synergetic effect of fillers with different shape and size on the thermal and mechanical properties of polymer composites. Representative volume element (RVE) models with a close-packed structure of plate-like and spherical fillers were obtained, and finite element analysis was performed to evaluate thermal conductivity of polymer composites by using Digimat-FE software. In addition, experimental measurements of the thermal conductivity, viscosity and flexural properties of the manufactured polymer composites were carried out. The results showed that polymer composites with the close-packed structure of plate-like and spherical fillers improved the viscosity and flexural properties while maintaining the thermal conductivity.