▎ 摘　　要

NOVELTY - The method for preparing chlorosilane-modified graphene oxide/silicon dioxide aerogel composite thermal insulation material involves (a) ultrasonically dispersing graphene oxide prepared by modified Hummer's method in 0.1-1 mg/ml organic solvent and centrifuging agglomerated graphite oxide and impurities to obtain uniformly-dispersed graphene oxide solution, (b) adding tetrachlorosilane to graphene oxide solution and carrying out modification reaction under nitrogen protection, (c) mixing tetraethyl orthosilicate, anhydrous ethanol and oxalic acid solution, adding chlorosilane-modified graphene oxide and ultrasonically stirring to obtain chlorosilane-modified graphene oxide/silicon source sol, (d) adding a pH adjuster to the sol, ultrasonically stirring, leaving, adding solvent to isopropanol, isopropanol/n-hexane solution and n-hexane solvent to obtain modified graphene oxide/silica aerogel, and (e) drying the aerogel to obtain the product. USE - Method is useful for preparing chlorosilane-modified graphene oxide/silicon dioxide aerogel composite thermal insulation material. ADVANTAGE - The method ensures effective preparation of chlorosilane-modified graphene oxide/silicon dioxide aerogel composite thermal insulation material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the chlorosilane-modified graphene oxide/silicon dioxide aerogel composite thermal insulation material prepared by the above method.