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Preparation method of pollution-free environment-friendly epoxy self-adhesive paint for electromagnetic wire

A technology of electromagnetic wire and self-adhesive paint, applied in the direction of epoxy resin coating, coating, etc., can solve the problems of phenolic solvents such as corrosiveness, toxicity, carcinogenicity of xylene, occupational health hazards, etc., to achieve a clear and transparent appearance, Excellent oil and water resistance, no mechanical impurities

Pending Publication Date: 2022-06-17
江苏佳禾电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional commercially available epoxy self-adhesive electromagnetic wire paints are all processed and produced with phenol / benzene as the solvent system of epoxy resin, especially the combination of cresol / xylene is used in large quantities in the paint processing and coating process. , There is a large amount of cresol / xylene solvent volatilization in the workplace, due to the corrosiveness, toxicity, and strong irritation of phenolic solvents, and the carcinogenicity of xylene, it has extremely serious occupational health hazards

Method used

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  • Preparation method of pollution-free environment-friendly epoxy self-adhesive paint for electromagnetic wire
  • Preparation method of pollution-free environment-friendly epoxy self-adhesive paint for electromagnetic wire

Examples

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Embodiment 1

[0038] A method for preparing a pollution-free and environment-friendly epoxy self-adhesive paint for electromagnetic wires, comprising the following steps:

[0039] Step 1: In parts by mass, take 288 parts of diethylene glycol monobutyl ether, 288 parts of diethylene glycol dimethyl ether, and 144 parts of 2-hydroxypropyl methyl ether into a reaction kettle with a condensation reflux device, stir and mix evenly , heat up to 35 ℃, put in phenoxy epoxy resin PKHH / PKHC ratio of 150 / 50 parts in batches, after the addition, stir and heat up to 85 ℃, keep stirring for 2 hours until the resin is fully dissolved, and cool to 45 ℃ get semi-finished product A;

[0040] Step 2: In parts by mass, take 16 parts of diethylene glycol monobutyl ether, 16 parts of diethylene glycol dimethyl ether, and 8 parts of 2-hydroxypropyl methyl ether, put them into a reaction kettle with a condensation reflux tube, and stir evenly , heat up to 40°C, put in 40 parts of bisphenol A epoxy resin, stir eve...

Embodiment 2

[0044] A method for preparing a pollution-free and environment-friendly epoxy self-adhesive paint for electromagnetic wires, comprising the following steps:

[0045] Step 1: In parts by mass, take 238 parts of diethylene glycol monobutyl ether, 238 parts of diethylene glycol dimethyl ether, and 204 parts of 2-hydroxypropyl methyl ether into a reaction kettle with a condensation reflux device, stir and mix evenly , heat up to 40 ℃, put in the phenoxy epoxy resin PKHH / PKHC ratio of 120 / 80 parts in batches, after the addition is completed, stir and heat up to 90 ℃, keep stirring for 2h, until the resin is fully dissolved, cool down to 50 ℃ get semi-finished product A;

[0046] Step 2: In parts by mass, take 15 parts of diethylene glycol monobutyl ether, 15 parts of diethylene glycol dimethyl ether, and 14 parts of 2-hydroxypropyl methyl ether, put them into a reaction kettle with a condensation reflux tube, and stir evenly , heat up to 42°C, put in 44 parts of bisphenol A epoxy re...

Embodiment 3

[0050] A preparation method of pollution-free and environment-friendly epoxy self-adhesive paint for electromagnetic wire, comprising the following steps:

[0051] Step 1: In parts by mass, take 204 parts of diethylene glycol monobutyl ether, 204 parts of diethylene glycol dimethyl ether, and 272 parts of 2-hydroxypropyl methyl ether into a reaction kettle with a condensation reflux device, stir and mix evenly , heat up to 42°C, put in phenoxy epoxy resin PKHH / PKHC ratio of 100 / 100 parts in batches, after the addition is completed, stir and heat up to 90°C, keep stirring for 3h, until the resin is fully dissolved, cool down to 52°C get semi-finished product A;

[0052] Step 2: In parts by mass, take 15 parts of diethylene glycol monobutyl ether, 15 parts of diethylene glycol dimethyl ether, and 20 parts of 2-hydroxypropyl methyl ether, put them into a reaction kettle with a condensation reflux tube, and stir evenly , heat up to 45°C, put in 50 parts of bisphenol A epoxy resin...

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Abstract

The invention relates to the technical field of functional electronic chemicals, in particular to a pollution-free environment-friendly epoxy self-adhesive paint for electromagnetic wires, and solves the problems that in the prior art, in paint processing and coating procedures, a large amount of cresol / xylene solvent volatilizes in a workplace, phenol solvents are high in corrosivity and toxicity and strong in irritation, and the service life of the epoxy self-adhesive paint is prolonged. In order to overcome the defects of easy carcinogenicity of dimethylbenzene and extremely serious occupational health hazards, the paint is prepared from the following components: main film-forming epoxy resin, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, 2-hydroxypropyl methyl ether, butylated amino resin and a flatting agent. The pollution-free environment-friendly epoxy self-adhesive paint disclosed by the invention is clear and transparent in appearance, free of mechanical impurities, good in storage stability and relatively high in solid content (26 + / -1%, 180 DEG C / 1.5 g / 1h), can fully meet the standard requirements of 'JB / T7599.14-2013 enameled winding wire insulating paint 14 part-epoxy self-adhesive wire enamel', and meets the standard requirements of 'JB / T6758.1-2007 transposed conductor first part: general stipulation' through a coated wire test.

Description

technical field [0001] The invention relates to the technical field of functional electronic chemicals, in particular to a preparation method of an epoxy self-adhesive paint for a pollution-free and environment-friendly electromagnetic wire. Background technique [0002] Self-adhesive paint for self-adhesive magnet wire can endow the magnet wire with different types of self-adhesive curing functions, and is widely used in the processing and production of various skeletonless electrical coil windings. Deformation characteristics are widely used in the production of large-scale self-adhesive (no dipping process) electrical winding wires, such as CTC (transposition conductors for power transmission and transformation) winding wires, etc., which are E-B heat-resistant grades. [0003] The traditional commercially available epoxy self-adhesive electromagnetic wire paints are all processed and produced using phenols / benzenes as the solvent system of epoxy resins, especially the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D163/02C09D161/32C09D7/20
CPCC09D163/00C09D7/20C08L61/32C08L63/00
Inventor 王成宜陈永凤
Owner 江苏佳禾电子材料有限公司
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