▎ 摘　　要

NOVELTY - Preparing highly dispersed graphene thermally conductive masterbatch involves using mechanical stripping method, stripping graphite powder in the liquid, adding graphite stripping agent in stripping process, obtaining graphene dispersion liquid. The mechanical peeling method includes peeling by a screw extruder, a ball mill peeling, a peel mill peeling, a sand mill peeling, a vibration mill peeling, and an ultrasonic peeling. The liquid is water, methanol, ethanol and acetone. A silicon dioxide aerogel precursor solution is prepared by using a silicon source. USE - Method for preparing highly dispersed graphene thermally conductive masterbatch (claimed). ADVANTAGE - The method enables to prepare highly dispersed graphene thermally conductive masterbatch, which solves the problem of agglomeration of graphene, ensures uniform dispersion of graphene and has excellent thermal conductivity. DETAILED DESCRIPTION - Preparing highly dispersed graphene thermally conductive masterbatch involves using mechanical stripping method, stripping graphite powder in the liquid, adding graphite stripping agent in stripping process, obtaining graphene dispersion liquid. The mechanical peeling method includes peeling by a screw extruder, a ball mill peeling, a peel mill peeling, a sand mill peeling, a vibration mill peeling, and an ultrasonic peeling. The liquid is water, methanol, ethanol and acetone. A silicon dioxide aerogel precursor solution is prepared by using a silicon source. The graphene dispersion is added into the silica aerogel precursor solution, and stirred. After the silica aerogel precursor solution is allowed to stand at a temperature of 30-80 degrees C for 0.1-24 hours, temperature is adjusted to 60-70 degrees C to obtain a graphene composite silica aerogel precursor solution. The graphene composite silica aerogel precursor is allowed to stand for 0.5-10 hours, adding aluminum hydroxide colloid, adjusting the pH to 5-7 to obtain a graphene composite silica aerogel precipitate. Graphene composite silica aerogel is dried into a oven at a temperature of 60-70 degrees C for 13-20 hours to obtain graphene composite silica aerogel. The graphene composite silica aerogel is ground and dispersed in a carrier resin, and the surfactant is added and stirred uniformly to obtain highly dispersed graphene thermally conductive masterbatch by extrusion granulation.