▎ 摘　　要

NOVELTY - High thermal conductivity thermoplastic material comprises 60-72 wt.% thermoplastic resin, 12-21 wt.% tackifying resin, 2-6 wt.% metal filler, 2.3-4 wt.% ceramic filler, 1.2-2.4 wt.% graphene microplates, 2.5-4.7 wt.% flame retardant and 9-11 wt.% elastic filler. USE - Used as high thermal conductivity thermoplastic material. ADVANTAGE - The method increases thermal conductivity of the material, reduces required manufacturing cost of the material by reducing the amount of graphene microplates, and avoids problem of uneven thermal conductivity of the material by sieving the particles with similar particle diameters. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing high thermal conductivity thermoplastic material, comprising (i) providing raw materials, (ii) drying at high temperature, (iii) preparing mixture, (iv) preparing thermoplastic material particles, and (v) sieving and storing. Specifically comprises providing 60-72 wt.% thermoplastic resin, 12-21 wt.% tackifying resin, 2-6 wt.% metal filler, 2.3-4 wt.% ceramic filler, 1.2-2.4 wt.% graphene microplates, 2.5-4.7 wt.% flame retardant and 9-11 wt.% elastic filler, adding into drying oven, adjusting the temperature of the drying oven to 90-100degrees Celsius, the drying time is 10-12 hours, adding into high-speed mixer for full mixing, obtaining mixture, where the rotating speed of the high-speed mixer is 700 revolutions/minute, the mixing time is 6-7 minutes, preheating the screw extruder, adding the mixture into the screw extruder, performing extrusion granulation, obtaining thermoplastic material granules, passing the particles through 10-40 mesh sieve, sieving and classifying, and storing the particles separately.