Safe, stable and high-performance wire enamel and preparation method thereof

Abstract

The invention discloses safe, stable and high-performance wire enamel. The wire enamel is prepared from the following raw materials in parts by weight: 25-35 parts of a mixed high molecular compound, 15-25 parts of composite resin, 8-14 parts of an insulating filler, 7-11 parts of a fire-retardant additive, 5-7 parts of a nano additive, 4-6 parts of a processing agent, 30-40 parts of a compound solvent, 3-5 parts of a coupling agent, 1-2 parts of m-cresol and p-cresol, 1-3 parts of epoxy acrylate, 1-2 parts of triethyl citrate, 1-2 parts of propyl gallate, 4-6 parts of glycerin and 2-4 parts of paraffin. The wire enamel has a relatively low water absorption rate and excellent mechanical and electrical properties, the temperature of the knee of a curve of medium loss is relatively high, the wire enamel can be directly used for coating an enamelled wire, the wire enamel is superior in the indexes of intermiscibility, precipitation and lacquer liquid viscosity, meanwhile, the costs of raw materials are relatively low, the preparation process is concise, the application method is quick and convenient, and the wire enamel has a relatively high practical value and an excellent application prospect.

Description

technical field [0001] The invention relates to the technical field of enameled wire materials, in particular to a safe, stable and high-performance enameled wire varnish and a preparation method thereof. Background technique [0002] Enameled wire is the most representative product among electronic wires. Enameled wire is a main variety of winding wire, including the core wire and the paint layer coated on the outside of the core wire. After the bare wire is annealed and softened, it is painted and baked many times. It has four major properties: mechanical properties, chemical properties, electrical properties, and thermal properties. Copper-clad aluminum enameled wire and copper-clad aluminum-magnesium enameled wire are new electromagnetic wires that use copper-clad aluminum or copper-clad aluminum-magnesium material as the inner conductor. Its characteristics are between copper and aluminum, combining the excellent conductivity of copper and the light weight of aluminum. ...

AI Technical Summary

Problems solved by technology

[0004] On the other hand, in the prior art, the enameled wire enamel is generally simply sprayed, and when the paint film is cured and the enameled wire is subjected to stress annealing, the heating and cooling rate is not effectively controlled, so that the low paint film appears during the curing process. There are some bulges, which seriously affect the performance of the enameled wire, so it is necessary to improve the use of enameled wire paint