The invention discloses a
zinc-
alkene coating still having long-term protection capability after being damaged and a preparation method thereof.The
zinc-
alkene coating still having long-term protection capability after being damaged comprises a component A and a component B. The
mass ratio of the component A to the component B is 1: 2.5-4. The component A comprises an
epoxy resin
emulsion, a
thickening agent, a
wetting agent, a defoaming agent, an anti-flash-
rust agent, deionized water and a
graphene dispersion liquid, and the component B comprises a curing agent, an adhesion
promoter, a dispersing agent, a defoaming agent, a rheological additive,
mica powder, an active
pigment,
zinc powder and a
solvent. A
coating prepared from the coating has excellent
corrosion resistance, particularly has excellent
corrosion spreading resistance, and can still provide excellent protection capability after being damaged, the
service time of the coating is prolonged, the repair frequency of the coating is reduced, and the maintenance cost is greatly reduced.