▎ 摘　　要

NOVELTY - Preparing graphene-filler composite thermally conductive material involves generating a graphite intercalation compound (GIC) by performing an electrochemical reaction on a graphite sheet, preparing a first dispersion solution by dispersing the graphite interlayer material in an organic solvent, injecting the first dispersion solution into a Taylor induction reactor to prepare a second dispersion solution in which graphene nano platelets (GNP) are dispersed (C) and adding a heat dissipating filler to the second dispersion solution and then stirring (D). The heat dissipation filler is silver-coated copper, the graphene nanoplatelets are non-oxidized graphene, stirred solution containing the heat dissipation filler is introduced into a Taylor induction reactor Shearing stage. USE - Method for preparing graphene-filler composite thermally conductive material. ADVANTAGE - The method enables to prepare graphene-filler composite thermally conductive material minimizes structural defects and exhibit excellent conductivity, secures stable thermal conductivity in vertical and horizontal directions by homogeneously coating graphene on the heat dissipating filler and exhibit excellent thermal conductivity by minimizing damage to the heat dissipating material during graphene coating. DETAILED DESCRIPTION - Preparing graphene-filler composite thermally conductive material involves generating a graphite intercalation compound (GIC) by performing an electrochemical reaction on a graphite sheet, preparing a first dispersion solution by dispersing the graphite interlayer material in an organic solvent, injecting the first dispersion solution into a Taylor induction reactor to prepare a second dispersion solution in which graphene nano platelets (GNP) are dispersed (C) and adding a heat dissipating filler to the second dispersion solution and then stirring (D). The heat dissipation filler is silver-coated copper, the graphene nanoplatelets are non-oxidized graphene, stirred solution containing the heat dissipation filler is introduced into a Taylor induction reactor Shearing stage or injected the stirred solution containing the heat dissipation filler into a high pressure homogenizer and dispersing the high pressure at a pressure of 1000-2000 bar. The non-oxidized graphene is coated on the surface of the heat dissipation filler.