▎ 摘　　要

NOVELTY - Preparing graphene high-strength thermal insulation composite material involves preparing graphene powder, using the graphene powder to prepare an aqueous graphene dispersion slurry, and adding the isocyanate compound to the first stirring tank, and then adding the graphene dispersion slurry into the first stirring tank. The heat preservation material is added to the first stirring tank and stirred uniformly to obtain the mixture A. The amino compound is added to the second stirred tank. The reinforcing agent and the toughening agent are added to second stirring tank in sequence, and stirred. The stabilizer is added to the second stirring tank, stirred continuously at a constant temperature to obtain a mixture B. The mixture A and the mixture B are put into the spray gun respectively for mixing to obtain graphene high-strength thermal insulation composite material. USE - Method for preparing graphene high-strength thermal insulation composite material. ADVANTAGE - The method enables to prepare graphene high-strength thermal insulation composite material with strong impact resistance, low thermal conductivity, high efficiency heat preservation function and long service life in a simple manner.