▎ 摘　　要

NOVELTY - A light-colored graphene electroconductive coating comprises 40-45 wt.% water-soluble resin and curing agent, 20-28 wt.% walnut shell-modified graphene polyaniline composite, 3-5 wt.% zinc oxide pigment, 0.5-2 wt.% thickener, 1.5-2.5 wt.% crosslinking coupling agent, 0.5-3 wt.% dispersing agent, 0.1-1 wt.% defoamer, 0.1-1 wt.% leveling agent and remainder of deionized water, and has a thickness of 70-90 mu m. The walnut shell-modified graphene polyaniline composite is prepared by mixing walnut shell, melamine and 0.8-1.5 mol/L sodium hydroxide solution in mass ratio of 1-1.3:0.9-1.2:50, diluting 2-3 times with water, stirring, leaving still, removing the bottom layer precipitate to obtain biomass dispersion, adding graphene oxide solution, mixing, obtaining mixed liquid containing 3-4 g/L biomass and 0.5-2 mg/mL, preferably 1 mg/mL graphene oxide, hydrothermally reacting at 180-200 degrees C, dialyzing, obtaining walnut shell-modified graphene dispersion, and performing aniline polymerization. USE - Light-colored graphene electroconductive coating. ADVANTAGE - The light-colored uniform and stable graphite coating has excellent electroconductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the coating, which involves mixing water-soluble resin, walnut shell-modified graphene polyaniline composite, zinc oxide pigment, thickener, crosslinking coupling agent, dispersing agent and water, adding defoamer and leveling agent, mixing uniformly, adding curing agent, mixing uniformly, and brush coating the resultant mixture on a non-conductive substrate, to form the coating.