CN103725192A - Wire enamel and preparation method thereof - Google Patents

Abstract

The invention discloses wire enamel which is characterized by being prepared by raw materials in parts by weight (kilogram) as follows: 3-5 parts of isocyanate, 7-9 parts of di-tetradecyl carbon alcohol ester, 12-15 parts of epoxy phenolic resin, 8-12 parts of polyester acrylate, 1-2 parts of a cross-linking agent TAC, 2-3 parts of chlorotributylstannane tributyltin chloride, 14-18 parts of nylon 12, 6-9 parts of 582-2 amino resin, 0.5-1.0 part of simethicone, 3-4 parts of nano brick slag powder, 1-2 parts of potassium tetraborate, 7-9 parts of an auxiliary, 120-130 parts of cresol and 100-120 parts of xylene. A product is high in paint hardness and cannot turn yellow, a paint film is waterproof, chemically resistant, good in ageing resistant, firm in adhesion, not prone to spalling, convenient to use and small in adhesion pollution, the adherence is improved, and the problems that withstand voltage of a copper-clad aluminum electromagnetic wire does not reach the standard as well as wear resistance, salt mist resistance, severe environment resistance and the like do not reach the standard all the time are solved.

Description

Wire enamel and preparation method thereof

Technical field

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

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 a kind of 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 wire enamel, it is characterized in that, by following weight part (kilogram) raw material make: isocyanic ester 3-5, two ten four carbon alcohols ester 7-9, epoxy phenolics 12-15, polyester acrylate 8-12, linking agent TAC 1-2, tributyl tin trichloride 2-3, nylon 12 14-18,582-2 aminoresin 6-9, dimethyl silicone oil 0.5-1.0, nanometer brick ground-slag end 3-4, potassium tetraborate 1-2, auxiliary agent 7-9, M-and P-cresols 120-130, dimethylbenzene 100-120;

Described auxiliary agent is made by following raw materials in part by weight: nano mica powder 0.2-0.3, tetramethylolmethane 3-4, glycerine 3-4, sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester 2-3, linking agent TAC1-2, dipentaerythritol acrylate 5-7, triethyl citrate 7-10, Tenox PG 2-3, coix seed oil 3-4; 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 wire enamel, is characterized in that comprising the following steps:

(1), take dimethylbenzene, M-and P-cresols and drop in the reactor with agitator and be uniformly mixed, be heated to 45-50 ℃, add nylon 12, stir and be heated to 150-180 ℃, after dissolving completely to nylon 12, be incubated 2-3 hour;

(2), step (1) reaction mass is cooled to 80-90 ℃, add dimethyl silicone oil, two ten four carbon alcohols esters, polyester acrylate, auxiliary agent, isocyanic ester, keep temperature, stirring reaction 3-4 hour;

(3) add leftover materials, again, be warming up to 110-120 ℃, continue stirring reaction 2-3 hour;

(4), cooling material is to 45-50 ℃, is ground to 20-40 μ m slurry, filter and get final product.

Wire enamel has following beneficial effect: the performance of painting in copper cover aluminum insulated wire production process improves, hardness is high, not yellowing, paint film is water-fast, chemical-resistant resistance, ageing resistance are good, bonding firmly incrust, easy to use, bonding is polluted little, improved adherence, solved that copper cover aluminum insulated wire is withstand voltage not up to standard all the time, the difficult problems not up to standard such as wear resisting property, salt spray resistance and adverse environment resistant performance.

 

Embodiment

Described wire enamel be by following weight part (kilogram) raw material make: isocyanic ester 5, two ten four carbon alcohols esters 7, epoxy phenolics 12, polyester acrylate 8, linking agent TAC 2, tributyl tin trichloride 2, nylon 12 14,582-2 aminoresin 6, dimethyl silicone oil 0.5, nanometer brick ground-slag end 3, potassium tetraborate 2, auxiliary agent 7, M-and P-cresols 120, dimethylbenzene 100;

Described auxiliary agent by following weight part (kilogram) raw material makes: nano mica powder 0.2, tetramethylolmethane 3, glycerine 4, sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester 2, linking agent TAC2, dipentaerythritol acrylate 7, triethyl citrate 7, Tenox PG 2, coix seed oil 3; 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 and drop in the reactor with agitator and be uniformly mixed, be heated to 45-50 ℃, add nylon 12, stir and be heated to 150-180 ℃, after dissolving completely to nylon 12, be incubated 2-3 hour;

(2), step (1) reaction mass is cooled to 80-90 ℃, add dimethyl silicone oil, two ten four carbon alcohols esters, polyester acrylate, auxiliary agent, isocyanic ester, keep temperature, stirring reaction 3-4 hour;

(3) add leftover materials, again, be warming up to 110-120 ℃, continue stirring reaction 2-3 hour;

(4), cooling material is to 45-50 ℃, 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 >=155 ℃, thermal shocking reaches 180 ℃ of paint films and does not ftracture;

3, cohesive strength 15N/mm ²;

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

Claims (3)

1. a wire enamel, it is characterized in that, by following weight part (kilogram) raw material make: isocyanic ester 3-5, two ten four carbon alcohols ester 7-9, epoxy phenolics 12-15, polyester acrylate 8-12, linking agent TAC 1-2, tributyl tin trichloride 2-3, nylon 12 14-18,582-2 aminoresin 6-9, dimethyl silicone oil 0.5-1.0, nanometer brick ground-slag end 3-4, potassium tetraborate 1-2, auxiliary agent 7-9, M-and P-cresols 120-130, 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, tetramethylolmethane 3-4, glycerine 3-4, sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester 2-3, linking agent TAC1-2, dipentaerythritol acrylate 5-7, triethyl citrate 7-10, Tenox PG 2-3, coix seed oil 3-4; 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 wire enamel according to claim 1, is characterized in that comprising the following steps:

(1), take dimethylbenzene, M-and P-cresols and drop in the reactor with agitator and be uniformly mixed, be heated to 45-50 ℃, add nylon 12, stir and be heated to 150-180 ℃, after dissolving completely to nylon 12, be incubated 2-3 hour;

(2), step (1) reaction mass is cooled to 80-90 ℃, add dimethyl silicone oil, two ten four carbon alcohols esters, polyester acrylate, auxiliary agent, isocyanic ester, keep temperature, stirring reaction 3-4 hour;

(3) add leftover materials, again, be warming up to 110-120 ℃, continue stirring reaction 2-3 hour;

(4), cooling material is to 45-50 ℃, is ground to 20-40 μ m slurry, filter and get final product.