▎ 摘　　要

NOVELTY - Graphene-based conductive hydrogel comprises poly dopamine used to partially reduce graphene oxide to obtain a conductive nanofiller, and acrylamide and sodium alginate are mixed to prepare a flexible base liquid. USE - Graphene-based conductive hydrogel used for a flexible wearable sensor. ADVANTAGE - The graphene-based conductive hydrogel has excellent electrical and mechanical property, self-healing,self-adhesion property and biological compatibility. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene-based conductive hydrogel, which involves: (A) dispersing the graphene oxide powder uniformly in the aqueous solution; (B) adding dopamine monomer; (C) adjusting the pH to 9-12; (D) stirring at a temperature of 60-80 degrees C, so that the graphene oxide in the solution is partially reduced to obtain a reduced graphene oxide conductive nano-filler mixed solution; (E) preparing repare a sodium alginate solution for later use; (F) adding acrylamide monomer to the sodium alginate solution and mix to obtain a flexible base liquid; (G) adding reduced graphene oxide conductive nano-filler mixed liquid obtained to the flexible base liquid; (H) stirring the mixture; (I) adding initiator, cross-linking agent, and auxiliary agent under ice bath conditions; and (J) stirring the mixture to obtain a graphene-based conductive hydrogel.