Preparation method of aminosilane-functionalized graphene reinforced silica gel

The invention provides a preparation method of aminosilane-functionalized graphene reinforced silica gel, which comprises the following steps: (1) preparation of aminosilane-functionalized graphene; and (2) preparation of aminosilane-functionalized graphene reinforced silica gel. The aminosilane-functionalized graphene has favorable dispersibility in water, ethanol, tetrahydrofuran, dimethyl sulfoxide, 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, N-aminoethyl-3-aminopropyltrimethoxysilane, N-aminoethyl-3-aminopropylmethyldiethoxysilane and N-aminoethyl-3-aminopropyltriethoxysilane. In addition, compared with common silica gel, the compression strength of the 3-aminopropyltriethoxysilane-functionalized graphene reinforced silica gel is increased by 20%, and the toughness thereof is increased by 92%.