▎ 摘　　要

NOVELTY - Graphene composite airgel preparation involves dispersing (1) graphene oxide in deionized water to form oxidized graphene dispersion, and then dispersing (2) an additive component in deionized water according to actual needs to form a dispersion of the added component. The obtained dispersions are mixed (3) and dispersed or stirred by ultrasonic to obtain a homogeneous dispersion of the added component and graphene oxide. USE - Method for preparing graphene composite airgel (claimed). ADVANTAGE - The method prepares the graphene composite airgel in a simple manner with multiple characteristics and functions. DETAILED DESCRIPTION - Graphene composite airgel preparation involves dispersing (1) graphene oxide in deionized water to form oxidized graphene dispersion, and then dispersing (2) an additive component in deionized water according to actual needs to form a dispersion of the added component. The obtained dispersions are mixed (3) and dispersed or stirred by ultrasonic to obtain a homogeneous dispersion of the added component and graphene oxide. The obtained homogeneous dispersion liquid is placed (4) in a reaction vessel and heated by adding a reducing agent to be reduced by chemical reduction to obtain graphene composite hydrogel. The process is repeated (5) to obtain graphene oxide homogeneous dispersion. The obtained graphene composite hydrogel is placed in the obtained graphene oxide homogeneous dispersion with reducing agent to obtain graphene composite hydrogel. The obtained coaxial cable type graphene composite hydrogel is placed in deionized water or aqueous ammonia for removing residual impurities. The graphene composite hydrogel after removing the residual impurities is freeze-dried or supercritically dried to obtain the dried coaxial type graphene composite hydrogel. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic flowchart of the graphene composite airgel preparation method. (Drawing includes non-English language text). Dispersing graphene oxide in deionized water (1) Dispersing additive component in deionized water (2) Mixing obtained dispersions (3) Placing obtained homogeneous dispersion liquid in reaction vessel (4) Repeating graphene oxide homogeneous dispersion process (5)