Graphene-based high-conductivity acid-containing ink and preparation method thereof

The invention relates to the technical field of conductive ink, and discloses graphene-based high-conductivity acid-containing ink and a preparation method thereof.The graphene-based high-conductivity acid-containing ink is prepared from, by mass, 1-20 parts of graphene, 60-90 parts of water, 2-30 parts of organic solvent, 5-20 parts of water-based resin mixed liquor, 0.01-0.5 part of surfactant, 0.1-2 parts of auxiliaries and 0.01-2 parts of acid; the acid is non-volatile strong acid. By regulating and controlling the raw material components and the component proportion, dispersion of graphene in a water-based system can be effectively promoted, and agglomeration is avoided; and the non-volatile strong acid added into the ink can exist between graphene sheet layers in a monomer form after the conductive ink is dried, and gaps between connecting layers are filled, so that the electron passing efficiency between the graphene sheet layers is enhanced, and the conductivity of the ink is greatly improved. 本发明涉及导电