Polyester wire enamel capable of realizing welding-slag-free direct welding and preparation method of polyester wire enamel

Abstract

The invention discloses polyester wire enamel capable of realizing welding-slag-free direct welding and a preparation method of the polyester wire enamel. The polyester wire enamel is characterized by comprising raw materials in parts by weight as follows: 20-24 parts of nylon 11, 12-15 parts of unsaturated polyester resin, 15-18 parts of polyester polyol, 14-18 parts of amino resin, 4-7 parts of triallyl isocyanurate, 3-4 parts of ferrocene, 1-2 parts of urotropine, 1-2 parts of 2-mercaptobenzimidazole, 12-14 parts of mica, 2-3 parts of titanium dioxide, 2-4 parts of isocyanate, 2-3 parts of zinc octoate, 1-2 parts of dibutyltin dilaurate, 7-9 parts of an additive, 120-140 parts of m,p-cresol and 140-160 parts of xylene. After enameled wires are coated with the obtained polyester wire enamel, welding slag is not produced during tin welding.

Description

technical field [0001] The invention relates to a wire enamel, in particular to a polyester wire enamel with no welding slag for direct welding and a preparation method thereof. Background technique [0002] Enameled wire is a kind of electrical material. It processes a thin layer of high-strength insulating layer on the surface of a round copper wire to insulate it from the outside world. According to the specifications, it can be processed into a wool thread thinner than a hair, and a yarn-covered thread as thick as a thumb. Enameled wire has good insulation effect and waterproof ability. It is widely used in electrical appliances, such as motors, generators, water pumps, electromagnets, electric welding machines, household appliances, wireless communications, speakers, telegraphs, transformers, etc. Enameled wire enamel is a necessary insulating material for the production of enameled wire. Enameled wire enamel requires good adhesion, mechanical strength, insulation per...

AI Technical Summary

Problems solved by technology

Enameled wire enamel is a necessary insulating material for the production of enameled wire. Enameled wire enamel requires good adhesion, mechanical strength, insulation performance, heat resistance, wear resistance, salt spray resistance and harsh environment resistance, etc., but ordinary wire enamel has resistance to It is difficult to meet the requirements of different environments due to problems such as thermal resistance, poor wear resistance, insufficient strength, and heat resistance below 120°C.