Environmental-friendly polyaniline modified micaceous iron oxide anticorrosive coating and preparation method thereof

Abstract

The invention relates to coating technology, in particular to an environmental-friendly polyaniline modified micaceous iron oxide anticorrosive coating and preparation method thereof, which solves theproblem that the prior micaceous iron oxide coating has poor anticorrosion performance, and needs to be matched with pigments containing lead and chromate during manufacturing. The environmental-friendly polyaniline modified micaceous iron oxide anticorrosive coating comprises film-forming material, polyaniline modified micaceous iron oxide, and the like. As polyaniline coating layers are formedon the surfaces of the micaceous iron oxide by an oxidative polymerization method, the treated micaceous iron oxide has the effect of passivating metal, and phytic-acid coating layers on the surfacesof the micaceous iron oxide play a role in inhibiting corrosion of metal. The environmental-friendly polyaniline modified micaceous iron oxide anticorrosive coating has strong corrosion resistance andpermeation resistance, can be applied to heavy-duty engineering of petrochemical equipment, pipelines, offshore oil platforms, wharf facilities, ships and the like.

Description

technical field

[0001] The invention relates to paint technology, in particular to an environment-friendly polyaniline modified mica iron oxide anticorrosion paint and a preparation method thereof. Background technique

[0002] Mica iron oxide is a flaky physical anti-rust pigment with excellent chemical resistance. In anti-rust coatings, mica iron oxide has good resistance to water and air penetration due to overlapping and stacking flakes, and has a certain ability to reflect ultraviolet rays. Anti-rust coatings made of micaceous iron oxide are widely used as anti-corrosion protection for bridges, power towers, oil storage tanks, tank cars and construction machinery.

[0003] Chinese patent CN86104711 discloses epoxy-chlorinated chloroprene rubber dry and wet dual-purpose coating, is to be main adhesive with epoxy-modified chlorinated chloroprene rubber, cyclohexanone-butyl acetate is made solvent, micaceous iron oxide, Red lead powder, etc. are used as anti-rust pigment...