▎ 摘　　要

NOVELTY - Preparing conductive mica powder doped with graphene comprises (a) dispersing graphene and non-ionic surfactants in water, performing high-speed emulsification treatment to obtain graphene dispersion liquid, (b) mixing mica powder, polymer surfactant and thickening agent to obtain mica powder suspension and (c) mixing the graphene dispersion liquid and the mica powder suspension, adjusting the pH to acidity, adding conductive metal salt solution drop wise, heating, filtering out the product, washing, drying and calcining to obtain conductive mica powder doped with graphene. USE - The method is useful for preparing conductive mica powder doped with graphene. ADVANTAGE - The conductive mica powder doped with graphene has very excellent conductivity, barrier property, durability and corrosion resistance. The coating has light color, easy dispersion, small specific gravity, heat resistance, high chemical stability, corrosion resistance, flame retardant, good wave permeability, good conductivity and low price. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a epoxy zinc-rich coating comprising A component and B component. The A component comprises 20-40 wt.% epoxy resin, 0.4-0.8 wt.% dispersant, 0.1-0.2 wt.% antifoaming agent, 0.5-1.2 wt.% anti-settling slurry, 0.4-0.6 wt.% gas phase silicon dioxide, 6-10 wt.% mixed solvent, 3-5 wt.% aluminum tripolyphosphate, 10-20 wt.% conductive mica powder doped with graphene, 40-55 wt.% zinc powder and 0.1-0.3 wt.% leveling agent. The B component comprises 40-60 wt.% amine curing agent and 40-60 wt.% solvent; and preparing epoxy zinc-rich coating comprising (1) adding epoxy resin to a production tank, (2) diluting the resin with a mixed solvent, slowly adding the dispersant and antifoaming agent for 5-10 minutes while stirring at 300-400revolutions/minute, (3) adding anti-settling slurry, gas phase silicon dioxide and zinc tripolyphosphate, stirring at 800-1000revolutions/minute for 15-20 minutes, using a sand mill to grind the fineness to 50 µm, (4) slowly adding conductive mica powder doped with graphene while stirring at 600-800revolutions/minute, stirring at a high speed of 1000-1200revolutions/minute for 20 minutes, detecting a fineness of 50 µm, (5) slowly adding zinc powder while stirring at 800-1000revolutions/minute, stirring at high speed at 1000-1200revolutions/minute for 20 minutes, and detecting a fineness of 50 µm, (6) adding leveling agent, stirring at 800-1000revolutions/minute for 5-10 minutes and (7) mixing the amine curing agent in component B with the solvent and stirring at 600-800 revolutions/minute for 5-10 minutes.