Insulating varnish for cables and wires

Abstract

The invention discloses insulating paint for cables and wires, and belongs to the technical field of insulating paint. The problem that existing insulating paint is poor in mechanical performance is solved. The insulating paint is composed of, by weight, 30-40 parts of bismaleimide resin, 20-30 parts of organic silicon resin, 30-40 parts of polyethylene elastomer, 60-80 parts of cyclohexanone, 40-50 parts of aluminum hydroxide, 3-8 parts of zinc oxide, 3-8 parts of p-hydroxybenzenesulfonic acid, 1-3 parts of dibutyltin dilaurate, 5-10 parts of mica, 10-17 parts of light calcium carbonate, 1-3 parts of dioctyl phthalate, 1-3 parts of polyether polyester modified organic siloxane and 1-3 parts of amino resin. The insulating paint is excellent in mechanical performance, outstanding in electrical insulating performance and suitable for wires and cables of all types.

Description

technical field [0001] The invention relates to an insulating varnish for cables and wires, belonging to the technical field of insulating varnishes. Background technique [0002] Insulating varnish, also known as insulating paint, is a paint with excellent electrical insulation. It is an important insulating material based on high molecular polymer, which can be solidified into an insulating film or an insulating whole under certain conditions, and has good electrical, thermal, mechanical and chemical properties. With the development of science and technology, insulating materials such as insulating paint have become indispensable materials for various appliances in modern life. The existing insulating varnishes have poor mechanical properties such as impact resistance, tensile properties, bending properties, wear resistance, and tear resistance. A slight external force will cause the insulating varnish to wear, crack, or even fall off. When the insulating varnish is used...

AI Technical Summary

Problems solved by technology

The existing insulating varnishes have poor mechanical properties such as impact resistance, tensile properties, bending properties, wear resistance, and tear resistance. A slight external force will cause the insulating varnish to wear, crack, or even fall off. When the insulating varnish is used on cables and wires, once the insulating varnish film is damaged, it will cause electric leakage and short circuit of the cables and wires, and electricity accidents will easily occur