CN103382347A - High-temperature resistance impregnating varnish and preparation method thereof - Google Patents
High-temperature resistance impregnating varnish and preparation method thereof Download PDFInfo
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- CN103382347A CN103382347A CN2013102618042A CN201310261804A CN103382347A CN 103382347 A CN103382347 A CN 103382347A CN 2013102618042 A CN2013102618042 A CN 2013102618042A CN 201310261804 A CN201310261804 A CN 201310261804A CN 103382347 A CN103382347 A CN 103382347A
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Abstract
A high-temperature resistance impregnating varnish and a preparation method thereof are disclosed. The varnish is characterized by being composed of following components in parts by weight: 30 to 34 parts of aniline formaldehyde resin, 5 to 7 parts of dimethyl dichlorosilane, 4 to 5 parts of acrylonitrile, 2 to 3 parts of butadiene, 3 to 4 parts of phthalic anhydride, 1 to 2 parts of boric acid, 20 to 23 parts of xylene, 4 to 5 parts of cobaltous naphthenate, 2 to 3 parts of tetraethylenepentamine, 1 to 2 parts of tert butyl peroxypivalate, 3 to 4 parts of polyoxyethylene octylphenol ether, 1 to 2 parts of 2-heptadecenyl-N-aminoethylimidazoline, 4 to 5 parts of diatomite and 4 to 5 parts of film forming agent. The impregnating varnish has the advantages of high-temperature resistance, high dampness resistance, acid-alkali corrosion resistance, salt smog proof, good electric insulation property and high mechanic strength. The heat conductivity of the varnish is improved, and the varnish can work at the temperature of 200 DEG C for a long period and at the temperature of 220 DEG C for a short period. The design requirements are fulfilled.
Description
Technical field
The invention belongs to the insulating material field, relate to a kind of impregnating varnish, especially a kind of high temperature resisting dipping paint and preparation method thereof.
Background technology
Pressure impregnation technique is generally adopted in the productions such as motor, transformer, wire.The workpiece preliminary drying is gone after tide cooling, be placed in vacuum environment, get rid of inner air and volatile matter, rely on paint liquid gravity in vacuum, apply the effect of certain pressure, make paint liquid rapid permeability and be full of the insulation system internal layer.This technique can obtain the paint film of continuous densification, free of pinholes.
Existing impregnating varnish is to be solidifying agent by epoxy resin as matrix resin, acid anhydrides.But the temperature resistant grade of this system cured product and toughness are not enough, need to carry out modification to epoxy anhydride impregnating varnish system, are the requirements that impregnating varnish system cured article satisfies temperature resistant grade and mechanical property simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of high temperature resisting dipping paint and preparation method thereof.
Technical scheme of the present invention is as follows:
A kind of high temperature resisting dipping paint is characterized in that being made by the raw material of following weight part:
Aniline formaldehyde resin 30-34, dimethyldichlorosilane(DMCS) 5-7, vinyl cyanide 4-5, divinyl 2-3, Tetra hydro Phthalic anhydride 3-4, boric acid 1-2, dimethylbenzene 20-23, cobalt naphthenate 4-5, tetraethylene pentamine 2-3, peroxidation trimethylacetic acid tert-butyl ester 1-2, polyoxyethylene octylphenol ether 3-4,2-aminoethyl 17 alkenyl imidazoline 1-2, diatomite 4-5, membrane-forming agent 4-5.
Described membrane-forming agent is made by the raw material of following weight part: Silane coupling agent KH550 2-4,582-2 aminoresin 16-21, polyisobutene 3-4, cobalt naphthenate 1-2, sec.-propyl distearyl acyl-oxygen base Aluminate 1-2, two ten four carbon alcohols ester 4-5, aluminium nitride 1-2, nano-attapulgite 1-2, epoxy soybean oil 4-5, morpholine 1-2;
The preparation method is: with each mixing of materials, be heated to 105-110 ℃, stirring reaction 2-3 hour, grinding removes slag obtained.
The preparation method of described high temperature resisting dipping paint, it is characterized in that comprising the following steps: dimethyldichlorosilane(DMCS), vinyl cyanide, divinyl, Tetra hydro Phthalic anhydride, boric acid, dimethylbenzene are mixed, be heated to 80-90 ℃, drip the peroxidation trimethylacetic acid tert-butyl ester, stirring reaction 1-2 hour, then, add other remaining component, be heated to 125-130 ℃, continue stirred 2-3 hour, cooling after and get final product.
Impregnating varnish of the present invention can be high temperature resistant, high humidity, corrosion-resistant soda acid, anti-salt fog, and diatomite has heat-absorbing action, and electrical insulation capability is good, and physical strength is high, has improved thermal conductivity, but 220 ℃ of long term operations, and 240 ℃ of short-terms have satisfied design requirements.
Embodiment
A kind of high temperature resisting dipping paint, made by the raw material (kilogram) of following weight part:
Aniline formaldehyde resin 34, dimethyldichlorosilane(DMCS) 7, vinyl cyanide 5, divinyl 3, Tetra hydro Phthalic anhydride 4, boric acid 1, dimethylbenzene 23, cobalt naphthenate 5, tetraethylene pentamine 3, the peroxidation trimethylacetic acid tert-butyl ester 2, polyoxyethylene octylphenol ether 3,2-aminoethyl 17 alkenyl imidazolines 2, diatomite 4, membrane-forming agent 5.
Described membrane-forming agent is made by the raw material of following weight part: Silane coupling agent KH550 4,582-2 aminoresin 16, polyisobutene 4, cobalt naphthenate 2, sec.-propyl distearyl acyl-oxygen base Aluminate 2, two ten four carbon alcohols esters 5, aluminium nitride 2, nano-attapulgite 2, epoxy soybean oil 4, morpholine 2;
The preparation method is: with each mixing of materials, be heated to 105-110 ℃, stirring reaction 2-3 hour, grinding removes slag obtained.
The preparation method of high temperature resisting dipping paint, comprise the following steps: dimethyldichlorosilane(DMCS), vinyl cyanide, divinyl, Tetra hydro Phthalic anhydride, boric acid, dimethylbenzene are mixed, be heated to 80-90 ℃, drip the peroxidation trimethylacetic acid tert-butyl ester, stirring reaction 1-2 hour, then, add other remaining component, be heated to 125-130 ℃, continue stirred 2-3 hour, cooling after and get final product.
Curing process: smoked under 110 ~ 150 ℃ 3-5 hour;
After it solidifies, cohesive strength is greater than 25N, and temperature classification is the H level, and volume specific resistance is not less than 1 * 1014 Ω m, and surface resistivity is not less than 1 * 1014 Ω, and after immersion, volume specific resistance is not less than 1 * 1012 Ω m, and surface resistivity is not less than 1 * 1012 Ω.Impregnating varnish of the present invention can high temperature resistant, high humidity, and electrical insulation capability is good, and physical strength is high, has improved thermal conductivity, but 220 ℃ of long term operations, and 240 ℃ of short-terms have satisfied design requirements.
Claims (2)
1. a high temperature resisting dipping paints, and it is characterized in that being made by the raw material of following weight part:
Aniline formaldehyde resin 30-34, dimethyldichlorosilane(DMCS) 5-7, vinyl cyanide 4-5, divinyl 2-3, Tetra hydro Phthalic anhydride 3-4, boric acid 1-2, dimethylbenzene 20-23, cobalt naphthenate 4-5, tetraethylene pentamine 2-3, peroxidation trimethylacetic acid tert-butyl ester 1-2, polyoxyethylene octylphenol ether 3-4,2-aminoethyl 17 alkenyl imidazoline 1-2, diatomite 4-5, membrane-forming agent 4-5;
Described membrane-forming agent is made by the raw material of following weight part: Silane coupling agent KH550 2-4,582-2 aminoresin 16-21, polyisobutene 3-4, cobalt naphthenate 1-2, sec.-propyl distearyl acyl-oxygen base Aluminate 1-2, two ten four carbon alcohols ester 4-5, aluminium nitride 1-2, nano-attapulgite 1-2, epoxy soybean oil 4-5, morpholine 1-2;
The preparation method is: with each mixing of materials, be heated to 105-110 ℃, stirring reaction 2-3 hour, grinding removes slag obtained.
2. the preparation method of high temperature resisting dipping according to claim 1 paint is characterized in that comprising the following steps:
Dimethyldichlorosilane(DMCS), vinyl cyanide, divinyl, Tetra hydro Phthalic anhydride, boric acid, dimethylbenzene are mixed, be heated to 80-90 ℃, drip the peroxidation trimethylacetic acid tert-butyl ester, stirring reaction 1-2 hour, then, add other remaining component, be heated to 125-130 ℃, continue to stir 2-3 hour, cooling after and get final product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310261804.2A CN103382347B (en) | 2013-06-27 | 2013-06-27 | A kind of high temperature resisting dipping paint and preparation method thereof |
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| CN201310261804.2A CN103382347B (en) | 2013-06-27 | 2013-06-27 | A kind of high temperature resisting dipping paint and preparation method thereof |
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| CN103382347A true CN103382347A (en) | 2013-11-06 |
| CN103382347B CN103382347B (en) | 2016-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409031A (en) * | 2013-07-02 | 2013-11-27 | 安徽联硕实业有限公司 | High-temperature-resistant impregnating varnish and preparation method thereof |
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| CN1298185A (en) * | 2000-02-22 | 2001-06-06 | 株洲时代电器铸件有限公司 | Non-inflammable insulating material and its making process |
| JP2002284878A (en) * | 2001-03-27 | 2002-10-03 | National Institute Of Advanced Industrial & Technology | Heat-resistant resin composition containing silsesquioxane-based polymer, film formed using the same and film-forming method |
| CN101381584A (en) * | 2008-10-20 | 2009-03-11 | 株洲时代新材料科技股份有限公司 | Organosilicon solvent-free dip varnish by modification of nano material and preparation method thereof |
| CN101560351A (en) * | 2009-02-25 | 2009-10-21 | 河北晨阳工贸集团有限公司 | Corrosion proof impregnating varnish used for water-based metal components and manufacturing method thereof |
| CN101921529A (en) * | 2010-08-18 | 2010-12-22 | 东华大学 | Heat-resistant solvent-free immersion paint and preparation method thereof |
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2013
- 2013-06-27 CN CN201310261804.2A patent/CN103382347B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298185A (en) * | 2000-02-22 | 2001-06-06 | 株洲时代电器铸件有限公司 | Non-inflammable insulating material and its making process |
| JP2002284878A (en) * | 2001-03-27 | 2002-10-03 | National Institute Of Advanced Industrial & Technology | Heat-resistant resin composition containing silsesquioxane-based polymer, film formed using the same and film-forming method |
| CN101381584A (en) * | 2008-10-20 | 2009-03-11 | 株洲时代新材料科技股份有限公司 | Organosilicon solvent-free dip varnish by modification of nano material and preparation method thereof |
| CN101560351A (en) * | 2009-02-25 | 2009-10-21 | 河北晨阳工贸集团有限公司 | Corrosion proof impregnating varnish used for water-based metal components and manufacturing method thereof |
| CN101921529A (en) * | 2010-08-18 | 2010-12-22 | 东华大学 | Heat-resistant solvent-free immersion paint and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103409031A (en) * | 2013-07-02 | 2013-11-27 | 安徽联硕实业有限公司 | High-temperature-resistant impregnating varnish and preparation method thereof |
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| CN103382347B (en) | 2016-05-04 |
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