COMPOSITE RESIN COMPOSITION AND MOLDING HAVING AN EXCELLENT HEAT DIFFUSIBILITY

摘要

PROBLEM TO BE SOLVED: To provide a composite resin composition superior to metallic materials in terms of moldability and weight reduction potential and superior to resin materials in terms of heat conductivity and mechanical strength.SOLUTION: The provided composite resin composition is a composite resin composition including (A) a carbon fiber and (B) a resin as constituent materials and having the following characteristics: the heat conductivity of a molding obtained by molding the resin composition along the plane direction thereof as measured based on the laser flash method is 5 W/mK or above; the heat conductivity thereof along the thickness direction is no more than a half of the heat conductivity along the plane direction; the flexural strength and flexural modulus of elasticity thereof measured in compliance with JIS K 6911 are respectively 100 MPa or above and 10 GPa or above; the specific gravity thereof measured in compliance with JIS K 6911 is 1.0 or above and 2.5 or below; the linear expansion coefficient thereof along the plane direction measured in compliance with JIS K 7197 is 0.1 ppm/°C or above and 50 ppm/°C or below; a molding excellent in terms of heat conductivity using the composite resin composition is also provided.