| abstract |
A graphite composition is provided. The graphite composition of one embodiment of the present invention comprises: a graphite composite in which nanoparticles having a catecholamine layer on the surface are fixed to graphite; and at least one graphite selected from among graphite flakes, spherical graphite and expanded graphite. Accordingly, the graphite composition has high dispersibility in the base material which is a heterogeneous material, and therefore the composite material thus embodied exhibits uniform heat dissipation properties, and can prevent a decrease in mechanical strength at a specific position. In addition, the composite material has excellent compatibility with a base material made of a different material and excellent interface characteristics with the base material, and thus can exhibit further improved heat dissipation performance and mechanical strength. Further, when the resin composition is compounded with a base material and molded by injection molding, extrusion, or the like, the molding is very easy and a complicated shape can be formed. |