Preparation process of corrosion inhibition type anti-rust pigment

The invention relates to the technical field of coatings, in particular to a preparation process of a corrosion inhibition type anti-rust pigment, which comprises the following steps: sequentially adding a water-borne epoxy resin diluent and a water-borne epoxy curing agent diluent into metal slurry to obtain powder; pre-dispersing the prepared powder, water and propylene glycol monomethyl ether to obtain a pre-gel substance; and dropwise adding a sulfonate diluent into the pre-gel, carrying out adsorption treatment, and finally, carrying out drying and crushing treatment. The metal surface is coated to form a microgel coating film, and then sulfonate and other materials are adopted for adsorption modification on the surface of the metal surface, so that the dual-protection effect is achieved, on one hand, the property of an interface is changed, the energy state of the metal surface tends to be stable, and the corrosion rate is slowed down; and on the other hand, the lipophilic group forms a layer of hydroph