Wire enamel with high thermal level and high abrasion resistance and preparation method of wire enamel

Abstract

The invention discloses wire enamel with a high thermal level and high abrasion resistance. The wire enamel is characterized by being prepared from raw materials in parts by weight (kilogram) as follows: 11-13 parts of phenolic resin, 11-15 parts of nylon 12, 3-6 parts of precipitated barium sulfate, 12-16 parts of polyurethane resin, 11-17 parts of E-12 epoxy resin, 1-2 parts of butyltin oxide, 2-3 parts of polyvinylpyrrolidone, 5-7 parts of phenyl glycidyl ether, 8-10 parts of neopentyl glycol, 2-4 parts of diphenylmethane diisocyanate, 1-3 parts of a silane coupling agent KH550, 7-9 parts of trimethylolpropane triacrylate, 1-2 parts of potassium acetate, 7-9 parts of an assistant, 95-115 parts of m, p-cresol and 100-120 parts of xylene. According to the wire enamel with the high thermal level and high abrasion resistance and a preparation method of the wire enamel, the preparation method is simple, the cost is low, a wire enamel film prepared with the preparation method has good adhesiveness and excellent scratch resistance, the temperature classification of the prepared wire enamel can be up to 200 DEG C, the oil resistance is good, the process redundancy is high, and steady technological production can be realized conveniently.

Description

technical field [0001] The invention relates to an enameled wire varnish, in particular to a high-heat-grade high-abrasion-resistant wire enamel 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 pe...

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.