A kind of anti-corrosion conductive dirt-repellent paint for catenary components

Abstract

The invention discloses an anti-corrosion conductive dirt-repellent paint for catenary components, which is characterized in that it is used for corrosion and dirt-repellent protection of catenary components in tunnels, and the anti-corrosion conductive dirt-repellent paint comprises the following components in mass parts Parts: 10-20 parts of film-forming resin, 55-65 parts of silicone monomer, 0.5-2.5 parts of crosslinking agent, 5-10 parts of interface adhesive, 0.1-0.3 parts of catalyst, 30-60 parts of conductive filler, slow 1-3 parts of corrosion passivator, 0.2-0.4 parts of orientation agent, 3-6 parts of anti-sedimentation agent, 10-20 parts of solvent, 0.3-0.8 parts of defoamer, 5-20 parts of pigment and filler; among them, The film-forming resin is silicone-modified bisphenol A epoxy resin. After the dirt-repellent coating is formed into a film, the coating film is dense, high in hardness, and low in surface energy. It has excellent salt spray corrosion resistance, moisture and heat corrosion resistance, electrical conductivity and dirt-repelling properties, which can meet the requirements of dirt-repelling and anti-corrosion in the tunnel of high-speed rail catenary components. and electrical needs.

Description

technical field [0001] The invention belongs to the field of catenary component coatings, in particular to an anti-corrosion, conductive and dirt-repellent coating for catenary components, which is applied to electrified railway catenary projects. Background technique [0002] The high-speed rail catenary components in offshore tunnels have been serving in very harsh and special corrosive environments for a long time, and there are obvious corrosion problems. At present, anti-corrosion coating processes such as hot-dip galvanized coating and thermal spraying zinc-aluminum coating are used. Due to the semi-enclosed environment of the tunnel, there are a large amount of corrosive dust pollutants containing soluble salts inside. These corrosive pollutants are easily dispersed in the air under the action of the airflow when the high-speed rail passes, and gradually deposit on the high-speed rail catenary components On the surface, compared with the conventional atmospheric state...

AI Technical Summary

Problems solved by technology

[0004] At present, conventional dirt-repellent coatings are mainly organic silicon, organic fluorosilicon, and fluorocarbon coatings, which have certain insulation properties. The use of these coatings in catenary components will affect the electrical conductivity of the catenary, and are suitable for high-speed rail contact The dirt-repellent coating required for the use of grid components must also have electrical conductivity, and there is no related coating technology and product at present