CN103409043A - Filling type heat conductive insulating impregnating varnish and preparation method thereof - Google Patents
Filling type heat conductive insulating impregnating varnish and preparation method thereof Download PDFInfo
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- CN103409043A CN103409043A CN2013102724291A CN201310272429A CN103409043A CN 103409043 A CN103409043 A CN 103409043A CN 2013102724291 A CN2013102724291 A CN 2013102724291A CN 201310272429 A CN201310272429 A CN 201310272429A CN 103409043 A CN103409043 A CN 103409043A
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Abstract
The invention relates to a filling type heat conductive insulating impregnating varnish and a preparation method thereof. The impregnating varnish is characterized by being prepared from the following raw materials in parts by weight: 2-3 parts of nanometer silicon carbide, 5-7 parts of aluminum nitride, 24-26 parts of E-12 epoxy resin, 12-14 parts of xylene, 5-6 parts of ethyl acetate, 2-3 parts of polyethylene glycol, 4-5 parts of ethyl acrylate, 1-2 parts of antioxidant 168, 4-5 parts of epoxidized soybean oil, 1-2 parts of tungsten boride, 3-4 parts of double fourteen carbon alcohol ester, 3-4 parts of silane coupling agent KH550, 1-2 parts of cross-linking agent TAC, 2-3 parts of alkylphenol polyoxyethylene ether phosphate, 2-3 parts of diethylaminopropylamine, 3-4 parts of zinc naphthenate, and 4-5 parts of film-forming agent. The impregnating varnish has good heat dissipation performance, is yellowing resistant, corrosion resistant, and high temperature and high humidity resistant, and has good electrical insulation property and high mechanical strength, the thermal conductivity is improved as the aluminum nitride is used for heat dissipation, and the impregnating varnish can work for a long term at 200 DEG C and for a short term at 220 DEG C, thus meeting the design requirement.
Description
Technical field
The invention belongs to the insulating material field, relate to a kind of impregnating varnish, especially a kind of filling-type thermal-conducting electric-insulating 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 filling-type thermal-conducting electric-insulating impregnating varnish and preparation method thereof.
Technical scheme of the present invention is as follows:
A kind of filling-type thermal-conducting electric-insulating impregnating varnish is characterized in that being made by the raw material of following weight part:
Nanometer silicon carbide 2-3, aluminium nitride 5-7, E-12 epoxy resin 24-26, dimethylbenzene 12-14, ethyl acetate 5-6, polyoxyethylene glycol 2-3, ethyl propenoate 4-5, irgasfos 168 1-2, epoxy soybean oil 4-5, boronation two tungsten 1-2, two ten four carbon alcohols ester 3-4, Silane coupling agent KH550 3-4, linking agent TAC1-2, alkylphenol polyoxyethylene phosphoric acid ester 2-3, diethyl amino propylamine 2-3, zinc naphthenate 3-4, 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 filling-type thermal-conducting electric-insulating impregnating varnish, it is characterized in that comprising the following steps: ethyl acetate, polyoxyethylene glycol, ethyl propenoate, irgasfos 168, epoxy soybean oil, boronation two tungsten, two ten four carbon alcohols esters, Silane coupling agent KH550 are mixed, be heated to 110-125 ℃, stirring reaction 2-3 hour, then, continue to add alkylphenol polyoxyethylene phosphoric acid ester, diethyl amino propylamine, zinc naphthenate, stirring reaction 40-50 minute, add again other remaining component, insulated and stirred 2-3 hour, obtain.
Impregnating varnish thermal diffusivity of the present invention is good, and anti-xanthochromia is corrosion-resistant, can high temperature resistant, high humidity, and electrical insulation capability is good, and physical strength is high, and the aluminium nitride heat radiation has improved thermal conductivity, but 200 ℃ of long term operations, 220 ℃ of short-terms, met design requirements.
Embodiment
A kind of filling-type thermal-conducting electric-insulating impregnating varnish, by the raw material (kilogram) of following weight part, made:
Nanometer silicon carbide 3, aluminium nitride 7, E-12 epoxy resin 26, dimethylbenzene 12, ethyl acetate 6, polyoxyethylene glycol 2, ethyl propenoate 5, irgasfos 168 2, epoxy soybean oil 5, boronation two tungsten 2, two ten four carbon alcohols esters 4, Silane coupling agent KH550 4, linking agent TAC2, alkylphenol polyoxyethylene phosphoric acid ester 3, diethyl amino propylamine 3, zinc naphthenate 3, 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 filling-type thermal-conducting electric-insulating impregnating varnish, comprise the following steps: ethyl acetate, polyoxyethylene glycol, ethyl propenoate, irgasfos 168, epoxy soybean oil, boronation two tungsten, two ten four carbon alcohols esters, Silane coupling agent KH550 are mixed, be heated to 110-125 ℃, stirring reaction 2-3 hour, then, continue to add alkylphenol polyoxyethylene phosphoric acid ester, diethyl amino propylamine, zinc naphthenate, stirring reaction 40-50 minute, add other remaining component, insulated and stirred 2-3 hour, obtain again.
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. filling-type thermal-conducting electric-insulating impregnating varnish is characterized in that being made by the raw material of following weight part:
Nanometer silicon carbide 2-3, aluminium nitride 5-7, E-12 epoxy resin 24-26, dimethylbenzene 12-14, ethyl acetate 5-6, polyoxyethylene glycol 2-3, ethyl propenoate 4-5, irgasfos 168 1-2, epoxy soybean oil 4-5, boronation two tungsten 1-2, two ten four carbon alcohols ester 3-4, Silane coupling agent KH550 3-4, linking agent TAC1-2, alkylphenol polyoxyethylene phosphoric acid ester 2-3, diethyl amino propylamine 2-3, zinc naphthenate 3-4, 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 filling-type thermal-conducting electric-insulating impregnating varnish according to claim 1, it is characterized in that comprising the following steps: ethyl acetate, polyoxyethylene glycol, ethyl propenoate, irgasfos 168, epoxy soybean oil, boronation two tungsten, two ten four carbon alcohols esters, Silane coupling agent KH550 are mixed, be heated to 110-125 ℃, stirring reaction 2-3 hour, then, continue to add alkylphenol polyoxyethylene phosphoric acid ester, diethyl amino propylamine, zinc naphthenate, stirring reaction 40-50 minute, add again other remaining component, insulated and stirred 2-3 hour, obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102724291A CN103409043A (en) | 2013-07-02 | 2013-07-02 | Filling type heat conductive insulating impregnating varnish and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102724291A CN103409043A (en) | 2013-07-02 | 2013-07-02 | Filling type heat conductive insulating impregnating varnish and preparation method thereof |
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| CN103409043A true CN103409043A (en) | 2013-11-27 |
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| CN2013102724291A Pending CN103409043A (en) | 2013-07-02 | 2013-07-02 | Filling type heat conductive insulating impregnating varnish and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269642A (en) * | 2016-06-09 | 2018-07-10 | 苏州高精特专信息科技有限公司 | A kind of electric power low-loss dry-type transformer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05112631A (en) * | 1991-10-22 | 1993-05-07 | Hitachi Chem Co Ltd | Varnish for impregnating motor coil of refrigerator |
| CN1097785A (en) * | 1993-07-20 | 1995-01-25 | 哈尔滨绝缘材料厂 | The making method of electric insulation dip varnish without solvent |
| CN101157817A (en) * | 2007-10-22 | 2008-04-09 | 苏州巨峰绝缘材料有限公司 | B. F-grade general epoxy less-solvent insulating impregnating varnish and preparation method thereof |
| CN103382352A (en) * | 2013-06-27 | 2013-11-06 | 马鞍山采石矶涂料有限公司 | Filling type heat-conductive insulating impregnating varnish and preparation method thereof |
-
2013
- 2013-07-02 CN CN2013102724291A patent/CN103409043A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05112631A (en) * | 1991-10-22 | 1993-05-07 | Hitachi Chem Co Ltd | Varnish for impregnating motor coil of refrigerator |
| CN1097785A (en) * | 1993-07-20 | 1995-01-25 | 哈尔滨绝缘材料厂 | The making method of electric insulation dip varnish without solvent |
| CN101157817A (en) * | 2007-10-22 | 2008-04-09 | 苏州巨峰绝缘材料有限公司 | B. F-grade general epoxy less-solvent insulating impregnating varnish and preparation method thereof |
| CN103382352A (en) * | 2013-06-27 | 2013-11-06 | 马鞍山采石矶涂料有限公司 | Filling type heat-conductive insulating impregnating varnish and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269642A (en) * | 2016-06-09 | 2018-07-10 | 苏州高精特专信息科技有限公司 | A kind of electric power low-loss dry-type transformer |
| CN108269642B (en) * | 2016-06-09 | 2019-05-14 | 日照市鸿泰机电有限公司 | A kind of electric power low-loss dry-type transformer |
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Application publication date: 20131127 |