Heavy-duty anticorrosion coating

Abstract

The invention relates to a heavy-duty anticorrosion coating. Raw materials of the coating comprise, by weight, 20-35 parts of an epoxy resin 618, 20-35 parts of an epoxy resin 828, 5-15 parts of butyl glycidyl ether, 1-5 parts of a tertiary amine curing accelerator, 1-5 parts of a polysiloxane, 8 parts of a polyamide, and 12 parts of a modified araliphatic amine epoxy curing agent. A method for preparing the coating comprises the following steps: mixing the epoxy resin 618 with the epoxy resin 828, adding a specific filler, an assistant and the curing agent to form the heavy-duty anticorrosion coating which does not contain an organic solvent, has a high solid content, has no solvents to volatile, and has no damages to constructors during construction. The coating which can be sprayed and brushed can form a film at normal temperature, and can be very conveniently constructed, so the environmental pollution is effectively reduced; and a coat of the coating has the advantages of strong adhesion and wear resistance, excellent anticorrosion performance, and very ideal water, salt spray, acid and alkali resistances.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a heavy-duty anti-corrosion coating. Background technique [0002] All metal and concrete facilities such as distant and offshore ships, ships, submarines, marine engineering, drilling platforms, port terminals, water conservancy facilities, petrochemical equipment, and bridge constructions are underwater or 100% humid for a long time, and their surfaces are corroded, The phenomenon of attached organisms, pollution and corrosion is very serious, and the maintenance period of ocean-going ships is usually once every two years. In actual working conditions, many metal equipment and concrete facilities that are difficult to move underwater have to be corroded and polluted. [0003] However, traditional heavy-duty anti-corrosion coatings have technical problems such as low solid content, high solvent content, thin film formation, low adhesion, strict surface treatment requirements, complex co...

AI Technical Summary

Problems solved by technology

[0003] However, traditional heavy-duty anti-corrosion coatings have technical problems such as low solid content, high solvent content, thin film formation, low adhesion, strict surface treatment requirements, complex construction technology, dew point restrictions, serious environmental pollution, and short life. When coating, the metal surface must be strictly derusted and the surface to be coated must be dry. These are the long-term problems faced by traditional heavy-duty anti-corrosion coatings.