Anti-corrosion conductive hydrophobic coating for overhead line system assembly

Abstract

The invention discloses an anti-corrosion, conductive and hydrophobic coating for an overhead line system component, which is characterized in that the anti-corrosion, conductive and hydrophobic coating is used for corrosion and hydrophobic protection of the overhead line system component in a tunnel, and the anti-corrosion, conductive and hydrophobic coating comprises the following components in parts by mass: 10-20 parts of film-forming resin, 55-65 parts of an organosilicon monomer, 0.5-2.5 parts of a cross-linking agent, 5-10 parts of an interface adhesive, 0.1-0.3 part of a catalyst, 30-60 parts of a conductive filler, 1-3 parts of a corrosion inhibition passivator, 0.2-0.4 part of a directional arrangement agent, 3-6 parts of a dust-proof agent, 10-20 parts of a solvent, 0.3-0.8 part of a defoaming agent and 5-20 parts of pigment and filler; The film-forming resin is organic silicon modified bisphenol A epoxy resin. After the pollution-repellent coating forms a film, the film is compact, high in hardness and low in surface energy, has excellent salt-spray corrosion resistance, damp-heat corrosion resistance, conductivity and pollution-repellent performance, and can meet the pollution-repellent, anti-corrosion and conductive requirements in a high-speed rail overhead line system assembly tunnel.

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