CN103725061A - Wire enamel with high thermal level and high abrasion resistance and preparation method of wire enamel - Google Patents

Abstract

The invention discloses wire enamel with a high thermal level and high abrasion resistance. The wire enamel is characterized by being prepared from raw materials in parts by weight (kilogram) as follows: 11-13 parts of phenolic resin, 11-15 parts of nylon 12, 3-6 parts of precipitated barium sulfate, 12-16 parts of polyurethane resin, 11-17 parts of E-12 epoxy resin, 1-2 parts of butyltin oxide, 2-3 parts of polyvinylpyrrolidone, 5-7 parts of phenyl glycidyl ether, 8-10 parts of neopentyl glycol, 2-4 parts of diphenylmethane diisocyanate, 1-3 parts of a silane coupling agent KH550, 7-9 parts of trimethylolpropane triacrylate, 1-2 parts of potassium acetate, 7-9 parts of an assistant, 95-115 parts of m, p-cresol and 100-120 parts of xylene. According to the wire enamel with the high thermal level and high abrasion resistance and a preparation method of the wire enamel, the preparation method is simple, the cost is low, a wire enamel film prepared with the preparation method has good adhesiveness and excellent scratch resistance, the temperature classification of the prepared wire enamel can be up to 200 DEG C, the oil resistance is good, the process redundancy is high, and steady technological production can be realized conveniently.

Description

A kind of high heat-stage high abrasion wire enamel and preparation method thereof

Technical field

The present invention relates to a kind of wire enamel, especially a kind of high heat-stage high abrasion wire enamel 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 high heat-stage high abrasion wire enamel 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 high heat-stage high abrasion wire enamel, it is characterized in that, by following weight part (kilogram) raw material make: resol 11-13, nylon 12 11-15, process white 3-6, urethane resin 12-16, E-12 epoxy resin 11-17, Mono-n-butyltin 1-2, polyvinylpyrrolidone 2-3, phenyl glycidyl ether 5-7, neopentyl glycol 8-10, '-diphenylmethane diisocyanate 2-4, silane resin acceptor kh-550 1-3, Viscoat 295 7-9, Potassium ethanoate 1-2, auxiliary agent 7-9, M-and P-cresols 95-115, 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 high heat-stage high abrasion wire enamel, 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 45-50 ℃, add nylon 12, stir and be heated to 145-180 ℃, after dissolving completely to nylon 12, add again polyvinylpyrrolidone, phenyl glycidyl ether, neopentyl glycol, process white, insulation 5-6 hour;

(2), step (1) reaction mass is cooled to 75-80 ℃, add '-diphenylmethane diisocyanate, silane resin acceptor kh-550, Viscoat 295, auxiliary agent, keep temperature, stirring reaction 2-3 hour;

(3) add leftover materials, again, be warming up to 115-125 ℃, 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, and cost is low, and the wire enamel paint film tack making with the present invention is good, enameled wire peel off twisting K value than at present conventional product up to two more than grade; Scratch resistance is good; The wire enamel temperature classification making can reach 200 grades; Technique remaining is wide, is convenient to realize sane explained hereafter.

Embodiment

Described high heat-stage high abrasion wire enamel, it is characterized in that, by following weight part (kilogram) raw material make: resol 11, nylon 12 11, process white 3, urethane resin 16, E-12 epoxy resin 11, Mono-n-butyltin 1, polyvinylpyrrolidone 2, phenyl glycidyl ether 7, neopentyl glycol 8, '-diphenylmethane diisocyanate 4, silane resin acceptor kh-550 3, Viscoat 295 7, Potassium ethanoate 1, auxiliary agent 9, M-and P-cresols 95, dimethylbenzene 100;

Described auxiliary agent by following weight part (kilogram) raw material makes: nano mica powder 0.2, polyacrylamide 1, methyltrimethoxy silane 3, silane coupling agent KH560 2, aminoresin 4, β-dimethyl-aminoethylmethacrylate 4, alcohol ester 12 film coalescence aid 2, acetone 5, triethyl citrate 5, Tenox PG 3, 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 45-50 ℃, add nylon 12, stir and be heated to 145-180 ℃, after dissolving completely to nylon 12, add again polyvinylpyrrolidone, phenyl glycidyl ether, neopentyl glycol, process white, insulation 5-6 hour;

(2), step (1) reaction mass is cooled to 75-80 ℃, add '-diphenylmethane diisocyanate, silane resin acceptor kh-550, Viscoat 295, auxiliary agent, keep temperature, stirring reaction 2-3 hour;

(3) add leftover materials, again, be warming up to 115-125 ℃, 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.

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

1, tack is good;

2, temperature classification >=200 ℃, thermal shocking reaches 240 ℃ of paint films and does not ftracture;

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

4, scratch resistance is good.

Claims (3)

1. a high heat-stage high abrasion wire enamel, it is characterized in that, by following weight part (kilogram) raw material make: resol 11-13, nylon 12 11-15, process white 3-6, urethane resin 12-16, E-12 epoxy resin 11-17, Mono-n-butyltin 1-2, polyvinylpyrrolidone 2-3, phenyl glycidyl ether 5-7, neopentyl glycol 8-10, '-diphenylmethane diisocyanate 2-4, silane resin acceptor kh-550 1-3, Viscoat 295 7-9, Potassium ethanoate 1-2, auxiliary agent 7-9, M-and P-cresols 95-115, 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 high heat-stage high abrasion wire enamel 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 45-50 ℃, add nylon 12, stir and be heated to 145-180 ℃, after dissolving completely to nylon 12, add again polyvinylpyrrolidone, phenyl glycidyl ether, neopentyl glycol, process white, insulation 5-6 hour;

(2), step (1) reaction mass is cooled to 75-80 ℃, add '-diphenylmethane diisocyanate, silane resin acceptor kh-550, Viscoat 295, auxiliary agent, keep temperature, stirring reaction 2-3 hour;

(3) add leftover materials, again, be warming up to 115-125 ℃, 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.