▎ 摘　　要

NOVELTY - A composite material containing graphene aerogel comprises a glass fiber surface felt layer, a graphene aerogel layer and a silicon dioxide aerogel layer which are sequentially arranged on one side or two sides of the glass fiber surface felt layer. The silicon dioxide aerogel layer is prepared by mixing silica aerogel and graphene oxide. USE - Composite material containing graphene aerogel for preparation of thermal insulation materials (all claimed). ADVANTAGE - The composite material has lower heat conductivity coefficient, and does not have dust adhesion on the surface of the composite material. The preparation method is simple, the materials are easy to obtain, and the mass production processability is strong. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of composite material, which involves (s1) adding water and mixing graphene oxide, water-soluble polymeric monomer, crosslinking agent, reducing agent, initiator and foaming agent and reacting to obtain reaction solution, coating the reaction solution on one side or two sides of the glass fiber surface felt, freezing, re-melting and heating to obtain the glass fiber surface felt with the hydrogel, dialyzing the glass fiber surface felt attached with the hydrogel with water, and removing water to obtain the glass fiber surface felt with the graphene aerogel layer, and (s2) mixing silica aerogel with graphene oxide, and coating the mixture on the graphene aerogel layer to prepare silicon dioxide aerogel layer.