▎ 摘　　要

NOVELTY - Graphene-based conductive ink comprises 30 to 60 wt.% modified matrix resin, 30 to 60 wt.% carbon composite filler, 1 to 8 wt.% auxiliary agent, 1 to 10 wt.% solvent. The modified matrix resin includes matrix resin and high imino melamine formaldehyde, and the carbon-based composite filler includes graphene. USE - Graphene-based conductive ink. ADVANTAGE - The graphene-based conductive ink has high coating hardness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene-based conductive ink, which involves preparing a modified matrix resin, the modified matrix resin includes matrix resin and high imino melamine formaldehyde, weighing graphene composite conductive filler and modified matrix resin according to the set ratio, adding additives and solvents to pre-disperse the modified matrix resin and graphene composite conductive filler to obtain a carbon slurry, preferably, the set ratio is 1:1:1, grinding the carbon slurry and filtering the ground carbon slurry to obtain conductive ink.