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Preparation method for fire resistant environment-friendly varnished wire hot melt self-adhering paint

An environmentally friendly, enameled wire technology, used in epoxy resin coatings, coatings, plastic/resin/wax insulators, etc., it can solve the problem of solvent selection not fully considering environmental protection requirements, difficult to meet heat resistance requirements, and short storage periods. problems, to achieve the effects of good synthesis stability, good application adaptability, and high finished product qualification rate

Inactive Publication Date: 2009-01-14
深圳市广南电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Low heat resistance, generally used at 155°C heat resistance, it is difficult to meet the heat resistance requirements above 180°C;
[0006] 2. The solvent selection does not fully consider the environmental protection requirements, the odor is strong, and the product has a lot of solvent residues;
[0007] 3. The reaction process is complicated, the application process of the finished product is difficult to master, the performance stability is poor, the consistency is poor, and the storage period is short;
[0008] 4. Low bonding strength, especially worse under high temperature conditions;
[0009] 5. Failing to fully consider the application requirements of subsequent processes (such as demoulding, etc.), the product is easily deformed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] According to the molar ratio, in the reaction kettle with agitator and reflux pipe, add 526 parts of m-cresol, 263 parts of xylene, and 87 parts of butanol, start the agitator at the same time when feeding, and heat after the feeding is completed. When the temperature reaches 65°C, add 100 parts of nylon 12 gradually and evenly within 0.5 hours, stir and heat at the same time, and keep the temperature at 115°C for 2 hours to obtain a semi-finished product A; then cool the semi-finished product A, control the temperature at 75°C, and add epoxy resin 18 parts, keep the temperature at 75°C for 1.5 hours, then lower the temperature to 65°C, add 6 parts of silicone, keep the temperature at 65°C for 0.5 hours, add 0.3 parts of polyether modified polyoxymethylene siloxane, 0.5 parts of polymer wax and stir Evenly, product B was obtained; the temperature of product B was lowered to 55°C, and 1 part of acidification inhibitor dioctadecyl thiodipropionate was added, and the temper...

Embodiment 2

[0032] According to the molar ratio, in the reaction kettle with agitator and reflux pipe, add 500 parts of m-cresol, 345 parts of xylene, and 100 parts of butanol, start the agitator at the same time when starting to add materials, heat after feeding, wait until When the temperature reaches 70°C, add 80 parts of nylon 12 gradually and evenly within 0.4 hours, stir and heat at the same time, and keep the temperature at 120°C for 2 hours to obtain a semi-finished product A; then cool the semi-finished product A, control the temperature at 80°C, and add epoxy resin 15 parts, keep the temperature at 80°C for 1.8 hours, then lower the temperature to 70°C, add 8 parts of silicone, keep the temperature at 70°C for 0.6 hours, add 0.5 parts of polyether modified polyoxymethylene siloxane, 0.7 parts of polymer wax and stir Evenly, product B was obtained; the temperature of product B was lowered to 60 ° C, and 1.5 parts of acidification inhibitor didodecanol thiodipropionate was added, a...

Embodiment 3

[0034] According to the molar ratio, in the reaction kettle with agitator and reflux pipe, add 346 parts of m-cresol, 300 parts of xylene, and 174 parts of butanol. When starting to feed, open the agitator at the same time, and heat it after feeding. When the temperature reaches 75°C, add 120 parts of nylon 12 gradually and evenly within 0.6 hours, stir and heat at the same time, and keep the temperature at 125°C for 2 hours to obtain a semi-finished product A; then cool the semi-finished product A, control the temperature at 85°C, and add epoxy resin 20 parts, keep the temperature at 85°C for 2 hours, then lower the temperature to 75°C, add 12 parts of silicone, keep the temperature at 75°C for 1 hour, add 0.7 parts of polyether modified polyoxymethylene siloxane, 1 part of polymer wax and stir Evenly, product B was obtained; the temperature of product B was lowered to 65°C, and 2 parts of acidification inhibitor ditetradecyl thiodipropionate were added, and the temperature wa...

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PUM

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Abstract

The invention discloses a preparation method of a high temperature resistant environment-protecting type enamel insulated wire heat-melting self-adhered paint, in the mixed solvent taking dimethyl benzene, cresol and butanol as solvent, the the high temperature resistant environment-protecting type enamel insulated wire heat-melting self-adhered paint which meets the requirement of the heat resistant condition the temperature of which is over 180 DEG C is made by the reaction of raw materials such as nylon 12, epoxy resin, organic silicone resin and leveling agent, lubrication prescription and acidification preventing agent added in sequence, the manufactured product has the advantages of good application adaptability, smooth and clean product, easy mould release, heat resistance, even adhesive force and deformation resistance.

Description

technical field [0001] The invention relates to a preparation method of enameled wire varnish, in particular to a preparation method of enameled wire hot-melt self-adhesive varnish. Background technique [0002] Enameled wire self-adhesive varnish is a new type of enameled wire varnish. Due to its special functions, it is widely used in the manufacture of various frameless (or special-shaped) coil wires, such as: color TV deflection coil (DY coil), electronic watch coil , mobile phone vibration motors, various voice coils, electromagnetic cooker induction coils and various flat 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 material that meets the requirements of environmental protection and energy saving. It is mainly used to coat the outer layer of various types of enameled wires with different wire diameters. Genera...

Claims

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Application Information

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IPC IPC(8): C09D177/00C09D5/18H01B3/30H01B13/16C09D163/00C09D183/00
Inventor 王成宜
Owner 深圳市广南电子有限公司
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