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Preparation method of enamel conductor environment-friendly type hot melt self-adhesive paint

An environment-friendly, self-adhesive paint technology, which is applied to coatings, conductors, electrical components, etc., can solve problems such as strong adhesion between enameled wire paint and metal, peculiar smell in the production process, and improper solvent selection. The effect of less odor volatilization and high qualified rate of finished products

Inactive Publication Date: 2007-08-01
溧阳市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

[0006] 1. Due to improper selection of solvent, such as cyclohexanone, it will cause peculiar smell in the production process and endanger human health;
[0007] 2. The aniline resin used as the main raw material is a material that is easy to react with butyral resin or itself, and has high heat sensitivity, which makes the process range narrow and difficult to control when coating enameled wire;
[0008] 3. Due to the lack of proper additives, the enameled wire paint has strong adhesion to the metal, which affects the release of the film and causes deformation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In the reaction kettle with agitator, add 100kg of natural cresol, 60kg of xylene, and 40kg of butanol, turn on the agitator to stir, heat up after feeding, and when the temperature reaches 60°C, gradually homogenize within half an hour Add 20kg of nylon 12 and 15kg of copolymerized nylon, and stir and heat at the same time, keep at 100°C / 2h; then put 2kg of release agent and 4kg of leveling agent that have been mixed evenly into the reactor, keep at 95°C / 1h; then add phenol Oxygen resin 20kg, lubricant 2kg, keep at 120℃ / 3h, and filter to make finished product.

Embodiment 2

[0026] In the reaction kettle with agitator, add 85kg of natural cresol, 65kg of xylene, and 30kg of butanol, turn on the agitator to stir, heat up after feeding, and when the temperature reaches 65°C, it will be gradually uniform within half an hour. Add 20kg of nylon 12 and 18kg of copolymerized nylon, stir and heat at the same time, keep at 95°C / 1.5h; then put 3kg of release agent and 3.5kg of leveling agent that have been mixed evenly into the reactor, and keep at 100°C / 0.5h; Then add 22kg of phenolic resin and 3.5kg of lubricant, keep at 115°C / 2.5h, and filter to make a finished product.

Embodiment 3

[0028] In the reaction kettle with agitator, add 95kg of natural cresol, 57kg of xylene, and 42kg of butanol, start the agitator to stir, heat up after feeding, and when the temperature reaches 56°C, it will be gradually uniform within half an hour. Add 20kg of nylon 12 and 12kg of copolymerized nylon, and stir and heat at the same time, keep at 104°C / 1.8h; then put 3.5kg of release agent and 5kg of leveling agent that have been mixed evenly into the reactor, and keep at 98°C / 0.8h; Then add 18kg of phenolic resin and 3kg of lubricant, keep at 130°C / 2.8 hours, and filter to make a finished product.

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PUM

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Abstract

The invention discloses a method for preparing environment-friendly thermo-activatable self-adhesive paint. It takes dimethylbenzene, natural methyl phenol and butyl alcohol as solvent, takes nylon 12, coploymerized nylon and phenoxy resin as main raw material, takes parting compound, levelling agent and lubricating agent as addictive auxiliary, prepares intermediate product by adding nylon 12 and ploymerized nylon into solvent, then adds additive auxiliary agent and phenoxy resin into solvent to produce final product. The invention is characterized in that it takes dimethylbenzene, natural methyl phenol and butyl alcohol as solvent, which avoids peculiar smell generation, all raw material possess good thermal stability and volatize lttle smell, which meets environment- friendly RoHS standard promulgated by European Union; the solubility between phenoxy resin and nylon is pretty good, and it is convenient for japanning in enamelcovered wire preparation process; the added proper addictive auxiliary ensures excellent demoulding for wire shaping and metal.

Description

technical field [0001] The invention relates to a preparation method of enameled wire varnish, in particular to a preparation method of environment-friendly hot-melt self-adhesive varnish. Background technique [0002] Enameled wire self-adhesive paint is widely used in the manufacture of color TV deflection coils (DY coils), electronic watch coils, mobile phone vibration motors, various voice coils, and special motor coils. [0003] Enameled wire self-adhesive varnish is mainly divided into hot-melt self-adhesive varnish and alcohol-soluble self-adhesive varnish. It is an important electrical insulation coating and is mainly coated on the outer layer of various types of enameled wires with different wire diameters. Generally, it is made by repeatedly coating enamelled wire varnish on the conductor with an enamelling machine and baking at high temperature. The effect of enameled wire self-adhesive paint is: to make enameled wire have good thermal resistance bonding performa...

Claims

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Application Information

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IPC IPC(8): C09D177/00C09D7/12C09D5/25H01B7/17
Inventor 山崎雄三王成宜
Owner 溧阳市佳禾电子材料有限公司
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