▎ 摘　　要

NOVELTY - Method for manufacturing a high-density heat dissipation composite includes: (i) melting and stirring an epoxy resin, a first phase change material, and a curing agent to form a mixture, and then firstly curing at a temperature equal to or higher than the curing temperature of the epoxy resin to form a matrix; and (ii) simultaneously performing secondary main curing and high-density compression processing on the product of step (i). USE - The method for manufacturing a high-density heat dissipation composite. The high-density heat dissipation composite is used for various components such as a housing material and an interface plate material of a component material that generates heat, and a heat control material of a battery system. ADVANTAGE - The method achieves hardening of a matrix and high-density compression processing simultaneously through an application of a hot press method, and produces a high-density heat dissipation composite which secures high latent heat, heat dissipation properties, and excellent leakage properties, and can be usefully applied under high temperature conditions. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a heat dissipation composite prepared by the above method, comprising a matrix formed by chemically bonding an epoxy resin and a first phase change material, and at least one of a second phase change material and a heat radiation filler dispersed in the matrix, and having a thickness of 0.1-5 mm and a density of 1 g/cm3or more.