CN103725054A - Amino resin wire enamel and preparation method thereof - Google Patents

Abstract

The invention discloses amino resin wire enamel which is prepared from raw materials in parts (kilogram) by weight as follows: 5-8 parts of trimellitic anhydride, 10-12 parts of maleic anhydride. 14-16 parts of hexamethylene diacrylate, 15-19 parts of E-12 epoxy resin, 6-8 parts of polyacrylamide, 12-15 parts of amino resin, 3-4 parts of sodium hexametaphosphate, 15-18 parts of polyvinylidene chloride, 6-10 parts of m-xylylenediamine, 15-20 parts of activated calcium carbonate, 12-15 parts of nylon 12, 7-9 parts of auxiliaries, 90-100 parts of cresol and 100-120 parts of dimethylbenzene. The preparation method is simple, the cost is low, and the prepared wire enamel has good heat resistance, refrigeration resistance, abrasion resistance and oil resistance.

Description

A kind of aminoresin enameled wire paint and preparation method thereof

Technical field

The present invention relates to a kind of wire enamel, especially a kind of aminoresin enameled wire paint and preparation method thereof.

Background technology

Enameled wire is a kind of electrical material, and it is the high-strength insulating layer of processing thin layer a circular copper line surface, plays the effect with external insulation.By specification, can be processed into than also thin lousiness line of hair, as thick cotton covered wire as thumb.Enameled wire has good insulation effect and waterproof ability.Aspect electrical equipment application very extensive, as electric motor, generator, water pump, electro-magnet, welding machine, household electrical appliance, cableless communication, loud speaker, tg, transformer etc.Wire enamel is the necessary insulating material of producing enameled wire, wire enamel requires to have good tack, physical strength, insulating property, resistance toheat, wear resisting property, salt spray resistance and adverse environment resistant performance etc., but there is thermotolerance, wear no resistance in common wire enamel, insufficient strength, heat-resisting level be lower than the problems such as 120 ℃, is difficult to meet the requirement of varying environment.Need to improve the formula of wire enamel and production technique, further improve the performance of enamel-cover paint, reduce its production cost.

Summary of the invention

Object of the present invention is just to provide a kind of aminoresin enameled wire paint and preparation method thereof, to overcome the deficiencies in the prior art.

The object of the present invention is achieved like this:

A kind of aminoresin enameled wire paint, it is characterized in that, by following weight part (kilogram) raw material make: trimellitic acid 1,2-anhydride 5-8, MALEIC ANHYDRIDE 10-12,1,6 hexanediyl ester 14-16, E-12 epoxy resin 15-19, polyacrylamide 6-8., aminoresin 12-15, Sodium hexametaphosphate 99 3-4, polyvinylidene dichloride 15-18, m-xylene diamine 6-10, activated Calcium carbonate 15-20, nylon 12 12-15, auxiliary agent 7-9, M-and P-cresols 90-100, dimethylbenzene 100-120;

Described auxiliary agent is made by following raw materials in part by weight: nano mica powder 0.2-0.3, polyacrylamide 1-2, methyltrimethoxy silane 3-4, silane coupling agent KH560 2-3, aminoresin 4-5, β-dimethyl-aminoethylmethacrylate 3-4, alcohol ester 12 film coalescence aid 1-2, acetone 5-7, triethyl citrate 5-10, Tenox PG 2-3, coix seed oil 1-2; Its preparation method is by each mixing of materials, is heated to 60-70 ℃, and stirring reaction 30-40 minute, obtains.

The preparation method of described aminoresin enameled wire paint, is characterized in that comprising the following steps:

(1), take dimethylbenzene, M-and P-cresols drops in the reactor with agitator and is uniformly mixed, be heated to 43-57 ℃, add nylon 12, stir and be heated to 135-190 ℃, after dissolving completely to nylon 12, add again trimellitic acid 1,2-anhydride, MALEIC ANHYDRIDE, polyacrylamide, activated Calcium carbonate, m-xylene diamine, insulation 5-5.5 hour;

(2), step (1) reaction mass is cooled to 75-80 ℃, add 1,6 hexanediyl ester, Sodium hexametaphosphate 99, polyvinylidene dichloride, auxiliary agent, keep temperature, stirring reaction 2-3 hour;

(3) add leftover materials, again, be warming up to 105-135 ℃, continue stirring reaction 2-3 hour;

(4), cooling material is to 40-45 ℃, is ground to 20-40 μ m slurry, filter and get final product.

The present invention has following beneficial effect: making method of the present invention is simple, cost is low, the wire enamel thermotolerance, solvent resistance, the deep freeze resistance that make are good, wear resistance and oil-proofness are good, solved that insulated wire is withstand voltage not up to standard all the time, the difficult problem that hot stamping is not up to standard, resistance to pressure is good, and pin hole is controlled well.

Embodiment

Described aminoresin enameled wire paint be by following weight part (kilogram) raw material make: trimellitic acid 1,2-anhydride 8, MALEIC ANHYDRIDE 10,1,6 hexanediyl ester 14, E-12 epoxy resin 15, polyacrylamide 6, aminoresin 12, Sodium hexametaphosphate 99 3, polyvinylidene dichloride 15, m-xylene diamine 6, activated Calcium carbonate 15, nylon 12 12, auxiliary agent 7, M-and P-cresols 90, dimethylbenzene 100;

Described auxiliary agent by following weight part (kilogram) raw material makes: nano mica powder 0.2, polyacrylamide 1, methyltrimethoxy silane 4, silane coupling agent KH560 2, aminoresin 4, β-dimethyl-aminoethylmethacrylate 3, alcohol ester 12 film coalescence aid 1, acetone 5, triethyl citrate 5, Tenox PG 2, coix seed oil 1; Its preparation method is by each mixing of materials, is heated to 60-70 ℃, and stirring reaction 30-40 minute, obtains.

Preparation method comprises the following steps:

(1), take dimethylbenzene, M-and P-cresols drops in the reactor with agitator and is uniformly mixed, be heated to 43-57 ℃, add nylon 12, stir and be heated to 135-190 ℃, after dissolving completely to nylon 12, add again trimellitic acid 1,2-anhydride, MALEIC ANHYDRIDE, polyacrylamide, activated Calcium carbonate, m-xylene diamine, insulation 5-5.5 hour;

(2), step (1) reaction mass is cooled to 75-80 ℃, add 1,6 hexanediyl ester, Sodium hexametaphosphate 99, polyvinylidene dichloride, auxiliary agent, keep temperature, stirring reaction 2-3 hour;

(3) add leftover materials, again, be warming up to 105-135 ℃, continue stirring reaction 2-3 hour;

(4), cooling material is to 40-45 ℃, is ground to 20-40 μ m slurry, filter and get final product.

Compared with prior art, making method of the present invention is simple, and cost is low, and the wire enamel thermotolerance, solvent resistance, the deep freeze resistance that make are good.

 

Use paint of the present invention wire rod main performance index processed as follows:

1, tack is good;

2, temperature classification >=155 ℃, thermal shocking reaches 180 ℃ of paint films and does not ftracture;

3,1200 hours/105 ℃ of transformer oil resistants, paint film is without damage;

4, deep freeze resistance is good, and solvent resistance is strong.

Claims (3)

1. an aminoresin enameled wire paint, it is characterized in that, by following weight part (kilogram) raw material make: trimellitic acid 1,2-anhydride 5-8, MALEIC ANHYDRIDE 10-12,1,6 hexanediyl ester 14-16, E-12 epoxy resin 15-19, polyacrylamide 6-8., aminoresin 12-15, Sodium hexametaphosphate 99 3-4, polyvinylidene dichloride 15-18, m-xylene diamine 6-10, activated Calcium carbonate 15-20, nylon 12 12-15, auxiliary agent 7-9, M-and P-cresols 90-100, dimethylbenzene 100-120.

2. auxiliary agent according to claim 1 is made by following raw materials in part by weight: nano mica powder 0.2-0.3, polyacrylamide 1-2, methyltrimethoxy silane 3-4, silane coupling agent KH560 2-3, aminoresin 4-5, β-dimethyl-aminoethylmethacrylate 3-4, alcohol ester 12 film coalescence aid 1-2, acetone 5-7, triethyl citrate 5-10, Tenox PG 2-3, coix seed oil 1-2; Its preparation method is by each mixing of materials, is heated to 60-70 ℃, and stirring reaction 30-40 minute, obtains.

3. the preparation method of aminoresin enameled wire paint according to claim 1, is characterized in that comprising the following steps:

(1), take dimethylbenzene, M-and P-cresols drops in the reactor with agitator and is uniformly mixed, be heated to 43-57 ℃, add nylon 12, stir and be heated to 135-190 ℃, after dissolving completely to nylon 12, add again trimellitic acid 1,2-anhydride, MALEIC ANHYDRIDE, polyacrylamide, activated Calcium carbonate, m-xylene diamine, insulation 5-5.5 hour;

(2), step (1) reaction mass is cooled to 75-80 ℃, add 1,6 hexanediyl ester, Sodium hexametaphosphate 99, polyvinylidene dichloride, auxiliary agent, keep temperature, stirring reaction 2-3 hour;

(3) add leftover materials, again, be warming up to 105-135 ℃, continue stirring reaction 2-3 hour;

(4), cooling material is to 40-45 ℃, is ground to 20-40 μ m slurry, filter and get final product.