CN103694873A - Alcohol soluble self-adhesive wire enamel with heat resistant index of 155 DEG C (grade F) and preparation method thereof - Google Patents

Abstract

The invention discloses an alcohol soluble self-adhesive wire enamel with heat resistant index of 155 DEG C (grade F) and a preparation method thereof. The self-adhesive wire enamel consists of the following raw materials by weight (kg): 14-18 parts of E-12 epoxy resin, 10-12 parts of butanol, 7-9 parts of maleic anhydride, 2-3 parts of a crosslinking agent TAC, 2-3 parts of aluminum silicate, 15-19 parts of neopentyl glycol, 3-5 parts of isocyanate, 6-8 parts of trimellitic anhydride, 10-15 parts of magnesium carbonate, 6-9 parts of diamino diphenyl methane, 3-4 parts of zinc naphthenate, 13-16 parts of nylon 11, 7-9 parts of an auxiliary agent, 120-130 parts of N-methyl pyrrolidone and 100-110 parts of m,p-cresol. Compared with the prior art, the wire enamel has the characteristics of high bond strength and good alcohol solubility. The production process has the advantages of simpleness, easily available raw materials, low cost, low equipment requirement, little investment and quick effectiveness, etc.

Description

Spirit-soluble self-adhering enamel for enameled wire and the preparation method of heat-resistance index 155 ℃ (F levels)

Technical field

The present invention relates to a kind of wire enamel, spirit-soluble self-adhering enamel for enameled wire and the preparation method of especially a kind of heat-resistance index 155 ℃ (F levels).

Background technology

Enameled wire is a kind of electrical material, and it is at the high-strength insulating layer of a circular copper line surface processing thin layer, plays the effect with external insulation.By specification, can be processed into than hair thin lousiness line also, 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 spirit-soluble self-adhering enamel for enameled wire and the preparation method of 155 ℃ of a kind of heat-resistance indexs (F level), to overcome the deficiencies in the prior art.

The object of the present invention is achieved like this:

The spirit-soluble self-adhering enamel for enameled wire of a kind of heat-resistance index 155 ℃ (F levels), it is characterized in that, by following weight part (kilogram) raw material make: E-12 epoxy resin 14-18, butanols 10-12, cis-butenedioic anhydride 7-9, linking agent TAC2-3, pure aluminium silicate 2-3, neopentyl glycol 15-19, isocyanic ester 3-5, trimellitic acid 1,2-anhydride 6-8, magnesiumcarbonate 10-15, diaminodiphenylmethane 6-9, zinc naphthenate 3-4, nylon 11 13-16, auxiliary agent 7-9, N-Methyl pyrrolidone 120-130, M-and P-cresols 100-110;

Described auxiliary agent is made by following raw materials in part by weight: nano mica powder 0.2-0.3, trolamine 1.2-1.3, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2-3, hexamethylenetetramine 1-2, polyester acrylate 3-5, Viscoat 295 12-15, triethyl citrate 3-6, linking agent TAC1-2, Tenox PG 2-3, coix seed oil 1-2; Its preparation method is that polyester acrylate, Viscoat 295, triethyl citrate are mixed, be heated to 60-70 ℃, add linking agent TAC, Tenox PG, coix seed oil, stirring reaction 30-40 minute, add again other remaining component, continue stirring reaction 1-2 hour, obtain.

The preparation method of the spirit-soluble self-adhering enamel for enameled wire of described heat-resistance index 155 ℃ (F levels), is characterized in that comprising the following steps:

(1) take in butanols, the reactor of M-and P-cresols input with agitator and be uniformly mixed, be heated to 40-45 ℃, add nylon 11, stir and be heated to 150-190 ℃, after dissolving completely to nylon 11, then add trimellitic acid 1,2-anhydride, neopentyl glycol, magnesiumcarbonate, N-Methyl pyrrolidone, insulation 5-6 hour;

(2) reaction mass step (1) being obtained is cooled to 85-90 ℃, adds diaminodiphenylmethane, auxiliary agent, isocyanic ester, cis-butenedioic anhydride, keeps temperature, stirring reaction 2-3 hour;

(3) add leftover materials, intensification 100-120 ℃, continues stirring reaction 2-3 hour again;

(4) cooling material, to being less than 45 ℃, stirs 1 hour, filters and makes finished product.

The spirit-soluble self-adhering enamel for enameled wire of heat-resistance index of the present invention 155 ℃ (F levels) has following beneficial effect: the features such as it is large that the spirit-soluble self-adhering enamel for enameled wire that the present invention produces has cohesive strength, and alcohol dissolubility is good; This product processes is simple, and starting material are easy to get, cost is low, equipment requirements is not high, have less investment, the advantages such as instant effect.

Embodiment

The spirit-soluble self-adhering enamel for enameled wire of described heat-resistance index 155 ℃ (F levels) be by following weight part (kilogram) raw material make: E-12 epoxy resin 14, butanols 10, cis-butenedioic anhydride 7, linking agent TAC3, pure aluminium silicate 3, neopentyl glycol 15, isocyanic ester 3, trimellitic acid 1,2-anhydride 8, magnesiumcarbonate 10, diaminodiphenylmethane 6, zinc naphthenate 3, nylon 11 13, auxiliary agent 9, N-Methyl pyrrolidone 120, M-and P-cresols 100;

Auxiliary agent is made by following raw materials in part by weight: nano mica powder 0.2, trolamine 1.2, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2, hexamethylenetetramine 1, polyester acrylate 5, Viscoat 295 12, triethyl citrate 3, linking agent TAC1, Tenox PG 3, coix seed oil 2; Its preparation method is that polyester acrylate, Viscoat 295, triethyl citrate are mixed, be heated to 60-70 ℃, add linking agent TAC, Tenox PG, coix seed oil, stirring reaction 30-40 minute, add again other remaining component, continue stirring reaction 1-2 hour, obtain.

Preparation method comprises the following steps:

(1) take in butanols, the reactor of M-and P-cresols input with agitator and be uniformly mixed, be heated to 40-45 ℃, add nylon 11, stir and be heated to 150-190 ℃, after dissolving completely to nylon 11, then add trimellitic acid 1,2-anhydride, neopentyl glycol, magnesiumcarbonate, N-Methyl pyrrolidone, insulation 5-6 hour;

(2) reaction mass step (1) being obtained is cooled to 85-90 ℃, adds diaminodiphenylmethane, auxiliary agent, isocyanic ester, cis-butenedioic anhydride, keeps temperature, stirring reaction 2-3 hour;

(3) add leftover materials, intensification 100-120 ℃, continues stirring reaction 2-3 hour again;

(4) cooling material, to being less than 45 ℃, stirs 1 hour, filters and makes finished product.

The features such as compared with prior art to have cohesive strength large for this paint, and alcohol dissolubility is good, its property indices all can reach the company standard of the Japan flower island electric wire strain ISBC-2HA of society heat curing-type self-adhesion enamel covered wire; This product processes is simple, and starting material are easy to get, cost is low, equipment requirements is not high, have less investment, the advantages such as instant effect, and the exoskeletal coil proof voltage that uses this winding wire to be shaped is high, high frequency performance is good, meets the development trend when information industry.

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 190 ℃ of paint films and does not ftracture;

3, cohesive strength: 1500 Mpa.s/30 ℃;

4, transformer oil resistant is 1200 hours/105 ℃, and paint film is without damage.

Claims (3)

1. the spirit-soluble self-adhering enamel for enameled wire of a heat-resistance index 155 ℃ (F levels), it is characterized in that, by following weight part (kilogram) raw material make: E-12 epoxy resin 14-18, butanols 10-12, cis-butenedioic anhydride 7-9, linking agent TAC2-3, pure aluminium silicate 2-3, neopentyl glycol 15-19, isocyanic ester 3-5, trimellitic acid 1,2-anhydride 6-8, magnesiumcarbonate 10-15, diaminodiphenylmethane 6-9, zinc naphthenate 3-4, nylon 11 13-16, auxiliary agent 7-9, N-Methyl pyrrolidone 120-130, M-and P-cresols 100-110.

2. auxiliary agent according to claim 1 is made by following raw materials in part by weight: nano mica powder 0.2-0.3, trolamine 1.2-1.3, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 2-3, hexamethylenetetramine 1-2, polyester acrylate 3-5, Viscoat 295 12-15, triethyl citrate 3-6, linking agent TAC1-2, Tenox PG 2-3, coix seed oil 1-2; Its preparation method is that polyester acrylate, Viscoat 295, triethyl citrate are mixed, be heated to 60-70 ℃, add linking agent TAC, Tenox PG, coix seed oil, stirring reaction 30-40 minute, add again other remaining component, continue stirring reaction 1-2 hour, obtain.

3. the preparation method of the spirit-soluble self-adhering enamel for enameled wire of heat-resistance index according to claim 1 155 ℃ (F levels), is characterized in that comprising the following steps:

(1) take in butanols, the reactor of M-and P-cresols input with agitator and be uniformly mixed, be heated to 40-45 ℃, add nylon 11, stir and be heated to 150-190 ℃, after dissolving completely to nylon 11, then add trimellitic acid 1,2-anhydride, neopentyl glycol, magnesiumcarbonate, N-Methyl pyrrolidone, insulation 5-6 hour;

(2) reaction mass step (1) being obtained is cooled to 85-90 ℃, adds diaminodiphenylmethane, auxiliary agent, isocyanic ester, cis-butenedioic anhydride, keeps temperature, stirring reaction 2-3 hour;

(3) add leftover materials, intensification 100-120 ℃, continues stirring reaction 2-3 hour again;

(4) cooling material, to being less than 45 ℃, stirs 1 hour, filters and makes finished product.