▎ 摘　　要

NOVELTY - Preparing solid-phase polymerized graphene nylon heat conducting material comprises (i) adding 0.5-2 wt.% coupling agent into a graphene slurry, subjecting the graphene slurry to surface dispersion treatment in a high speed shear emulsifying machine with a shear speed of 2000-12000 revolutions/minute for 1-2 hours, performing vacuum drying to constant weight, and drying at 80-100 degrees C; (ii) adding nylon into a drying device, using nitrogen gas for drying nylon respectively in the upper and lower ends of the drying device, circulating nitrogen, controlling the nitrogen temperature at 120-200 degrees C, and drying for 6-112 hours; (iii) adding graphene and nylon into a solid-phase polymerization device, circulating nitrogen, heating for 10-24 hours to obtain a highly viscous graphite nylon material, controlling the polymerization temperature at 160-300 degrees C and controlling the aggregation stirring speed at 2000-6000 revolutions/minute; and (iv) cooling the graphene-nylon after polymerization. USE - The method is useful for preparing solid-phase polymerized graphene nylon heat conducting material. ADVANTAGE - The method utilizes graphene with large specific surface area as a central link between the nylon crystal region and the amorphous region, reduces thermal resistance of the interface of heat conduction, and improves the thermal conductivity and mechanical property of the material; and can be applied to parts with a certain heat conduction or heat dissipation function.