Insulating coating for metal surface

Abstract

The invention provides an insulating coating for a metal surface. The insulating coating comprises, by mass, 5-11 parts of an insulating substrate, 10-22 parts of a coating substrate, 1-3 parts of a substrate assistant and 2-5 parts of a coating assistant; the insulating substrate includes a resin liquid, m,p-cresol and expandable graphite; the coating substrate includes silica sol, glue and a coating filler; the substrate assistant includes a dispersant, a coupling agent, an activator and a flame retardant; and the coating assistant includes a thickener, a corrosion inhibitor, a film formingagent, a conditioner and a stabilizer. fluences of cracking and shedding of the surface, caused by thermal expansion and cold contraction of the metal, on the flame retardation effect. The insulatingsubstrate and the coating substrate are combined to ensure the adhesion of the coating to the metal surface, improve the insulating effect and greatly improve the flame retardation effect, so the electrical safety is further ensured; and the coating also has a certain elastic effect, and avoids the influences of cracking and shedding of the surface, caused by thermal expansion and cold contractionof the metal, on the flame retardation effect.

Description

technical field [0001] The invention belongs to the field of functional coatings, in particular to an insulating coating for metal surfaces. Background technique [0002] In recent years, with the advancement and development of science and technology, the electronic information industry has developed rapidly, and the popularity of various electronic products has brought us great convenience. The lead wire metal, etc. also bring a great risk of leakage and combustion. At the same time, the insulation and flame retardancy of the existing surface coating is poor, which virtually increases the hidden danger of leakage and combustion. [0003] Therefore, in view of the above problems, it is an urgent problem for those skilled in the art to develop a coating that can effectively insulate and flame-retardant the inner metal surface of electrical appliances. Contents of the invention [0004] In order to solve the above problems, the invention discloses an insulating coating for ...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the advancement and development of science and technology, the electronic information industry has developed rapidly, and the popularity of various electronic products has brought us great convenience. The metal of the lead wire, etc. also brings a great risk of electric leakage and combustion. At the same time, the insulation and flame retardancy of the existing surface coating is poor, which virtually increases the hidden danger of electric leakage and combustion.