▎ 摘 要
NOVELTY - The preparation process of composite material involves adding graphene and carbon nanotube to a reaction tank and then uniformly mixing, grinding the mixture and then dehydrating, refining the mixture and then dehydrating, grinding the mixture and then processing, drying the mixture, and packaging. USE - The process is useful for preparation of composite material (claimed). ADVANTAGE - The process enables preparation of composite material with high purity.