CN103409062A - High-temperature-resistant organic silicon impregnating varnish and preparation method thereof - Google Patents
High-temperature-resistant organic silicon impregnating varnish and preparation method thereof Download PDFInfo
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- CN103409062A CN103409062A CN2013102724304A CN201310272430A CN103409062A CN 103409062 A CN103409062 A CN 103409062A CN 2013102724304 A CN2013102724304 A CN 2013102724304A CN 201310272430 A CN201310272430 A CN 201310272430A CN 103409062 A CN103409062 A CN 103409062A
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Abstract
The invention provides high-temperature-resistant organic silicon impregnating varnish and a preparation method thereof. The impregnating varnish is prepared from the following raw materials in parts by weight: 32-35 parts of organic silicon resin, 2-3 parts of ethylenetriamine, 6-8 parts of alkyd resin, 10-12 parts of ethyl acetate, 14-16 parts of E-12 epoxy resin, 4-6 parts of maleic anhydride, 6-7 parts of ethylene glycol, 2-3 parts of dibutyltin dilaurate, 1-2 parts of zinc pyrouric acid, 4-5 parts of polyisobutene, 2-3 parts of polyoxyethylene rosin ester, 3-4 parts of vinyl tri(beta-methoxyethoxy)-silicane, 35-38 parts of xylene, and 4-5 parts of film forming agent. The impregnating varnish is good in varnish toughness and high in impact strength, is compact, and can resist yellowing, high temperature, high humidity and corrosion, is good in electrical insulating performance and high in mechanical strength, can be used for improving the heat conductivity, and can work at a temperature of 200 DEG C for a long time and at a temperature of 220 DEG C for a short time to fulfill the designing requirement.
Description
Technical field
The invention belongs to the insulating material field, relate to a kind of impregnating varnish, especially a kind of high-temperature resistant silicone impregnating varnish and preparation method thereof.
Background technology
Pressure impregnation technique is generally adopted in the productions such as motor, transformer, wire.Go tide rear cooling the workpiece preliminary drying, be placed in vacuum environment, get rid of inner air and volatile matter, rely in vacuum the effect of painting liquid gravity, applying certain pressure, make to paint the 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 as matrix resin, acid anhydrides, to be solidifying agent by epoxy resin.But the temperature resistant grade of this system cured product and toughness deficiency, need to carry out modification to epoxy anhydride impregnating varnish system, is the requirement that impregnating varnish system cured article meets temperature resistant grade and mechanical property simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of high-temperature resistant silicone impregnating varnish and preparation method thereof.
Technical scheme of the present invention is as follows:
A kind of high-temperature resistant silicone impregnating varnish is characterized in that being made by the raw material of following weight part:
Silicone resin 32-35, vinyl triamine 2-3, Synolac 6-8, ethyl acetate 10-12, E-12 epoxy resin 14-16, MALEIC ANHYDRIDE 4-6, ethylene glycol 6-7, dibutyl tin laurate 2-3, cyanuric acid zinc 1-2, polyisobutene 4-5, sylvic acid polyoxyethylene ester 2-3, vinyl three ('beta '-methoxy oxyethyl group) silane 3-4, dimethylbenzene 35-38, 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: by each mixing of materials, be heated to 105-110 ℃, and stirring reaction 2-3 hour, grinding removes slag obtains.
The preparation method of described high-temperature resistant silicone impregnating varnish, it is characterized in that comprising the following steps: MALEIC ANHYDRIDE, ethylene glycol, dibutyl tin laurate, cyanuric acid zinc, polyisobutene, sylvic acid polyoxyethylene ester, vinyl three ('beta '-methoxy oxyethyl group) silane, dimethylbenzene are mixed, be heated to 120-130 ℃, stirring reaction 2-3 hour, then, add other remaining component, insulated and stirred reaction 3-4 hour, obtain.
Preparation technology of the present invention is simple, cost is low, be conducive to realize suitability for industrialized production; And the room temperature tensile shearing resistance of this high-temperature resistant silicone impregnating varnish is high, also has excellent thermotolerance, and hydrophobicity is strong, in fields such as superpower traction electric machine, high-power generator, drilling motor, mining motors, have broad application prospects.
Impregnating varnish paint film good toughness of the present invention, excellent in cushion effect, the paint film densification, anti-xanthochromia, can be high temperature resistant, high humidity, corrosion, and electrical insulation capability is good, and physical strength is high, has improved thermal conductivity, but 200 ℃ of long term operations, 220 ℃ of short-terms, met design requirements.
Embodiment
A kind of high-temperature resistant silicone impregnating varnish, by the raw material (kilogram) of following weight part, made:
Silicone resin 32, vinyl triamine 3, Synolac 8, ethyl acetate 12, E-12 epoxy resin 16, MALEIC ANHYDRIDE 6, ethylene glycol 7, dibutyl tin laurate 2, cyanuric acid zinc 2, polyisobutene 4, sylvic acid polyoxyethylene ester 2, vinyl three ('beta '-methoxy oxyethyl group) silane 4, dimethylbenzene 38, 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: by each mixing of materials, be heated to 105-110 ℃, and stirring reaction 2-3 hour, grinding removes slag obtains.
The preparation method of high-temperature resistant silicone impregnating varnish, comprise the following steps: MALEIC ANHYDRIDE, ethylene glycol, dibutyl tin laurate, cyanuric acid zinc, polyisobutene, sylvic acid polyoxyethylene ester, vinyl three ('beta '-methoxy oxyethyl group) silane, dimethylbenzene are mixed, be heated to 120-130 ℃, stirring reaction 2-3 hour, then, add other remaining component, insulated and stirred reaction 3-4 hour, obtain.
Curing process: smoke 3-5 hour under 110 ~ 150 ℃;
It solidifies rear cohesive strength and 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 200 ℃ of long term operations, and 220 ℃ of short-terms, met design requirements.
Claims (2)
1. high-temperature resistant silicone impregnating varnish is characterized in that being made by the raw material of following weight part:
Silicone resin 32-35, vinyl triamine 2-3, Synolac 6-8, ethyl acetate 10-12, E-12 epoxy resin 14-16, MALEIC ANHYDRIDE 4-6, ethylene glycol 6-7, dibutyl tin laurate 2-3, cyanuric acid zinc 1-2, polyisobutene 4-5, sylvic acid polyoxyethylene ester 2-3, vinyl three ('beta '-methoxy oxyethyl group) silane 3-4, dimethylbenzene 35-38, 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: by each mixing of materials, be heated to 105-110 ℃, and stirring reaction 2-3 hour, grinding removes slag obtains.
2. the preparation method of high-temperature resistant silicone impregnating varnish according to claim 1, it is characterized in that comprising the following steps: MALEIC ANHYDRIDE, ethylene glycol, dibutyl tin laurate, cyanuric acid zinc, polyisobutene, sylvic acid polyoxyethylene ester, vinyl three ('beta '-methoxy oxyethyl group) silane, dimethylbenzene are mixed, be heated to 120-130 ℃, stirring reaction 2-3 hour, then, add other remaining component, insulated and stirred reaction 3-4 hour, obtain.
Priority Applications (1)
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| CN2013102724304A CN103409062A (en) | 2013-07-02 | 2013-07-02 | High-temperature-resistant organic silicon impregnating varnish and preparation method thereof |
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| CN2013102724304A CN103409062A (en) | 2013-07-02 | 2013-07-02 | High-temperature-resistant organic silicon impregnating varnish and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073158A (en) * | 2014-06-04 | 2014-10-01 | 乐凯特科技铜陵有限公司 | Not-easy-to-yellow conformal coating for printed circuit board |
| CN104194571A (en) * | 2014-09-25 | 2014-12-10 | 芜湖县双宝建材有限公司 | Anti-corrosion and anti-impact coating |
| CN105086549A (en) * | 2015-08-12 | 2015-11-25 | 无锡阳工机械制造有限公司 | Epoxy insulating impregnating varnish for electric generator |
| CN105295720A (en) * | 2015-11-03 | 2016-02-03 | 株洲时代新材料科技股份有限公司 | Preparation method for organic silicon impregnating varnish |
| CN105504823A (en) * | 2016-01-28 | 2016-04-20 | 天津凯华绝缘材料股份有限公司 | High-temperature-resistant organosilicone powder encapsulating material and preparation method thereof |
| CN107570391A (en) * | 2016-07-04 | 2018-01-12 | 北京宝景泰克汽车零部件有限公司 | Stem surface sprays production technology |
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| 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 |
| CN101921529A (en) * | 2010-08-18 | 2010-12-22 | 东华大学 | Heat-resistant solvent-free immersion paint and preparation method thereof |
| CN103382366A (en) * | 2013-06-27 | 2013-11-06 | 马鞍山采石矶涂料有限公司 | High-temperature resistance organic silicon impregnating varnish and preparation method thereof |
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| 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 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073158A (en) * | 2014-06-04 | 2014-10-01 | 乐凯特科技铜陵有限公司 | Not-easy-to-yellow conformal coating for printed circuit board |
| CN104194571A (en) * | 2014-09-25 | 2014-12-10 | 芜湖县双宝建材有限公司 | Anti-corrosion and anti-impact coating |
| CN104194571B (en) * | 2014-09-25 | 2016-07-20 | 芜湖县双宝建材有限公司 | A kind of corrosion-resistant stamping enamel |
| CN105086549A (en) * | 2015-08-12 | 2015-11-25 | 无锡阳工机械制造有限公司 | Epoxy insulating impregnating varnish for electric generator |
| CN105295720A (en) * | 2015-11-03 | 2016-02-03 | 株洲时代新材料科技股份有限公司 | Preparation method for organic silicon impregnating varnish |
| CN105295720B (en) * | 2015-11-03 | 2018-03-30 | 株洲时代新材料科技股份有限公司 | A kind of preparation method of silicone impregnating varnish |
| CN105504823A (en) * | 2016-01-28 | 2016-04-20 | 天津凯华绝缘材料股份有限公司 | High-temperature-resistant organosilicone powder encapsulating material and preparation method thereof |
| CN107570391A (en) * | 2016-07-04 | 2018-01-12 | 北京宝景泰克汽车零部件有限公司 | Stem surface sprays production technology |
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Application publication date: 20131127 |