▎ 摘　　要

NOVELTY - High-conductivity graphene aqueous ink, is claimed, the preparation of high-conductivity of graphene aqueous ink comprises e.g. preparing ultra-fine copper powder by adding copper acetate to polyol, adding aqueous ammonia, and copper complex solution, carrying out complexation reaction at temperature of 60-70 degrees C, dropwise adding 5-10% hydrazine hydrate solution to copper ammonia solution with continuous stirring, centrifuging the reaction mixture, uniformly mixing copper powder, graphene, acrylic resin, alkyd resin, butyl acetate, deionized water, leveling agent, and aqueous thickener. USE - Used as high-conductivity graphene aqueous ink. ADVANTAGE - The high-conductivity graphene aqueous ink has oxidation resistance property; and is environmentally friendly, and non-toxic. DETAILED DESCRIPTION - High-conductivity graphene aqueous ink, is claimed, the preparation of high-conductivity of graphene aqueous ink comprises (i) preparing ultra-fine copper powder by adding copper acetate to polyol, adding aqueous ammonia, and copper complex solution, carrying out complexation reaction at temperature of 60-70 degrees C, dropwise adding 5-10% hydrazine hydrate solution to copper ammonia solution with continuous stirring, centrifuging the reaction mixture, to obtain copper purple powder, washing the copper powder, where the particle diameter of copper powder is 50-500 nm; (ii) uniformly mixing 5-8% copper powder, 55-62% graphene, 5-9% acrylic resin, 2-4% alkyd resin, 7-11% butyl acetate, 7-11% deionized water, 0.2-2% defoamer, 0.2-2% leveling agent, and 2-4% aqueous thickener; (iii) uniformly mixing alkyd resin, and acrylic resin with deionized water under stirring, adding ethanol into dispersion kettle, setting the temperature 30-40 degrees C, uniformly stirring at a stirring speed of 400-500 rotations/minute, adding graphene, copper powder, water-based thickeners, leveling agent, defoamer into dispersion kettle with stirring, maintaining the temperature to 30-40 degrees C, controlling the stirring speed to 400-500 rotations/minute; and (iv) grinding the dispersed material by transferring into grinding machine until the material fineness is upto 15 mu m, to obtain the final product.