▎ 摘　　要

NOVELTY - Aqueous graphene conductive ink comprises 25-40 pts. wt. aqueous polymer resin, 20-40 pts. wt. composite graphene slurry, 1-3 pts. wt. dispersant, 1-5 pts. wt. first auxiliary agent and 80-140 pts. wt. solvent, the composite graphene slurry includes modified graphene slurry, conductive carbon black, carbon nanotube, diluent and second auxiliary agent, the mass ratio of the modified graphene, conductive carbon black and carbon nanotube is (4-8):(1-3):(0.5-2). USE - The aqueous graphene conductive ink used as printed conductive dot or conductive circuit for manufacturing flexible and coating circuit. ADVANTAGE - The aqueous graphene conductive ink: has improved electrical conductivity and improved stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the aqueous graphene conductive ink comprising (1) taking graphene for acidification treatment to obtain graphene oxide, adding γ-methacryloxypropyltrimethoxysilane to the obtained graphene oxide, stirring and reacting to obtain functionalized graphene oxide, obtaining modified graphene slurry under action of hydrazine hydrate; (2) taking modified graphene slurry obtained in step (1) and conductive carbon black, adding diluent and second auxiliary agent into the reaction kettle, using the reaction kettle to carry out initial stirring and mixing to obtain a premix, adding the weighed carbon nanotubes to the premix, and stirring the composite graphene slurry again; (3) adding the weighed aqueous polymer resin, dispersant, first auxiliary agent and solvent into the dispersing kettle, and dispersing under ultrasonic assisted dispersion to obtain aqueous polymer resin slurry; and (4) ultrasonically stirring and mixing the composite graphene slurry obtained in step (2) and the aqueous polymer slurry obtained in step (3) to obtain pre-ink mixture, transferring pre-ink mixture to three-roll mill for grinding 3-5 times, and grinding to a particle size of less than 1 µm to obtain an aqueous graphene conductive ink.