▎ 摘　　要

NOVELTY - Preparing graphene heat conducting film comprises transmitting the filter film from the outside to the vacuum box, spraying the graphene slurry to the surface of the filter film before the filter film enters the vacuum box, flattening the graphene slurry on the surface of the filter film, downwards filtering the filter film in the vacuum box to form graphene heat conducting film, introducing the graphene heat conducting film into a multiple roller pressing shaft assembly for rolling, the roller distance of the roller pressing shaft assembly is gradually reduced along the transmission direction of the graphene heat conducting film, in the process of rolling the graphene heat conducting film, heating the graphene heat conducting film, and rolling the graphene heat conducting film. USE - The method is useful for preparing graphene heat conducting film. ADVANTAGE - The method for preparing graphene heat conducting film of the technical solution can quickly discharge the water and bubbles in the graphene heat conducting film, which can improve the heat conducting performance of the graphene heat conducting film, and can continuously produce the graphene heat conducting film in large scale. DESCRIPTION OF DRAWING(S) - The drawing shows a connection diagram of a method for preparing graphene heat conducting film. (Drawing includes non-English language text). 2Conveying assembly 3Graphene heat conducting film 11Air pump 43Roller distance 61Dispersing machine 72Second leveling machine 632Second pipeline 711First leveling rod