▎ 摘　　要

NOVELTY - Preparing high-strength conductive graphene composite material of silkworm-like silkworm, comprises: ultrasonically treating the above graphene oxide-chitosan-copper ion heterogeneous dispersion, and adding an alkali solution to adjust the pH to 8-12 to obtain a uniform graphene oxide-chitosan-copper ion dispersion on the basis of determining the optimal content of chitosan, repeating steps by changing the content of copper chloride, and obtaining a graphene oxide composite material with different copper ion content; vacuum-filtering the uniform graphene oxide-chitosan-copper ion dispersion, and obtaining a chemically crosslinked layered graphene oxide composite material by vacuum induced self-assembly; and reducing the layered graphene oxide composite with hydriodic acid (HI) to obtain a tough integrated silkworm high-strength conductive graphene composite material. USE - The composite material is useful in aerospace, supercapacitor, and flexible electronic devices. ADVANTAGE - The composite material has high-strength, tensile strength which is about 5 times that of pure graphene, and excellent electrical conductivity. DETAILED DESCRIPTION - Preparing high-strength conductive graphene composite material of silkworm-like silkworm, comprises: (i) mixing the chitosan solution and the copper chloride solution uniformly, and stirring to obtain a chitosan-copper ion solution; (ii) adding a chitosan-copper ion solution into the aqueous graphene oxide solution under stirring to obtain a gel-like precipitated graphene oxide-chitosan-copper ion heterogeneous dispersion; (iii) ultrasonically treating the above graphene oxide-chitosan-copper ion heterogeneous dispersion, and adding an alkali solution to adjust the pH to 8-12 to obtain a uniform graphene oxide-chitosan-copper ion dispersion; (iv) on the basis of determining the optimal content of chitosan, repeating steps (i)-(iii) by changing the content of copper chloride in step (i), and obtaining a graphene oxide composite material with different copper ion content; (v) vacuum-filtering the uniform graphene oxide-chitosan-copper ion dispersion obtained in the step (iii), and obtaining a chemically crosslinked layered graphene oxide composite material by vacuum induced self-assembly; and (vi) reducing the layered graphene oxide composite obtained in the step (v) with hydriodic acid (HI) to obtain a tough integrated silkworm high-strength conductive graphene composite material.