CN103666251A - Organosilicone insulation impregnating varnish and preparation method thereof - Google Patents
Organosilicone insulation impregnating varnish and preparation method thereof Download PDFInfo
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- CN103666251A CN103666251A CN201310576575.3A CN201310576575A CN103666251A CN 103666251 A CN103666251 A CN 103666251A CN 201310576575 A CN201310576575 A CN 201310576575A CN 103666251 A CN103666251 A CN 103666251A
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Abstract
The invention discloses organosilicone insulation impregnating varnish and a preparation method thereof. The organosilicone insulation impregnating varnish is prepared from the following raw materials in parts by weight:12 to 14 of polymethyl phenyl vinyl siloxane, 4 to 6 of diethylene glycol benzoate, 3 to 4 of triethyl citrate, 2 to 3 of alkenyl succinic acid, 1 to 2 of dialkyl dithiophosphate, 1 to 2 of an antioxidant DSTP, 3 to 4 of distearoyl isopropoxy aluminate, 6 to 8 of polyisobutylene, 1 to 2 of cyclohexanone peroxide, 2 to 3 of methylene-dicyclohexyl amine, 3 to 4 of vinyl carboxylic ester, 5 to 6 of vinyl acetate, 1 to 2 of calcium naphthenate and 4 to 5 of film-forming agent. The impregnating varnish disclosed by the invention has no released low-molecular-weight byproduct when being cured so as not to affect the electrical properties of insulating materials, and has good whole-dip effect and high temperature resistance and is environmentally friendly.
Description
Technical field
The invention belongs to insulating material field, relate to a kind of impregnating varnish, especially a kind of organic silicon insulation impregnating varnish and preparation method thereof.
Background technology
The productions such as motor, transformer, wire generally adopt pressure impregnation technique.Go tide rear cooling workpiece preliminary drying, be placed in vacuum environment, get rid of inner air and volatile matter, rely in vacuum and paint liquid gravity, apply the effect of certain pressure, make to paint liquid rapid permeability and be full of 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 are not enough, need to carry out modification to epoxy anhydride impregnating varnish system, are the requirements that impregnating varnish system cured article meets temperature resistant grade and mechanical property simultaneously.
Summary of the invention
The object of this invention is to provide a kind of organic silicon insulation impregnating varnish and preparation method thereof.
Technical scheme of the present invention is as follows:
An organic silicon insulation impregnating varnish, is characterized in that being made by the raw material of following weight part:
Polyphenylmethyl base vinylsiloxane 12-14, glycol ether benzoic ether 4-6, triethyl citrate 3-4, alkenyl succinic acid 2-3, zinc dialkyl dithiophosphate 1-2, oxidation inhibitor DSTP1-2, sec.-propyl distearyl acyl-oxygen base Aluminate 3-4, polyisobutene 6-8, cyclohexanone peroxide 1-2, methylene-bis hexamethylene alkanamine 2-3, vinyl carboxylate 3-4, vinyl acetate 5-6, calcium naphthenate 1-2, 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;
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 organic silicon insulation impregnating varnish, is characterized in that comprising the following steps:
Glycol ether benzoic ether, triethyl citrate, alkenyl succinic acid, sec.-propyl distearyl acyl-oxygen base Aluminate, polyisobutene, vinyl acetate are mixed, be heated to 80-90 ℃, drip cyclohexanone peroxide, stirring reaction 1-2 hour, then, add polyphenylmethyl base vinylsiloxane, calcium naphthenate, membrane-forming agent, be warming up to 115-120 ℃, continue to stir 2-3 hour, insulation, continue to add other leftover materials, stir 1-2 hour and get final product.
The polyphenylmethyl base vinylsiloxane of synthesized of the present invention be take ethanol as solvent, nontoxic, harmless, when prepared impregnating varnish solidifies, without low molecule by product, emits, and does not affect the electric property of insulating material, and wholely soaks effective, high temperature resistant, environmental protection.
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, can long term operation 200 ℃, and 220 ℃ of short-terms, have met design requirements.
Embodiment
An organic silicon insulation impregnating varnish, by the raw material of following weight part (kilogram) make:
Polyphenylmethyl base vinylsiloxane 14, glycol ether benzoic ether 6, triethyl citrate 4, alkenyl succinic acid 2, zinc dialkyl dithiophosphate 2, oxidation inhibitor DSTP2, sec.-propyl distearyl acyl-oxygen base Aluminate 4, polyisobutene 6, cyclohexanone peroxide 2, methylene-bis hexamethylene alkanamine 3, vinyl carboxylate 4, vinyl acetate 5, calcium naphthenate 1, 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;
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 organic silicon insulation impregnating varnish, comprises the following steps:
Glycol ether benzoic ether, triethyl citrate, alkenyl succinic acid, sec.-propyl distearyl acyl-oxygen base Aluminate, polyisobutene, vinyl acetate are mixed, be heated to 80-90 ℃, drip cyclohexanone peroxide, stirring reaction 1-2 hour, then, add polyphenylmethyl base vinylsiloxane, calcium naphthenate, membrane-forming agent, be warming up to 115-120 ℃, continue to stir 2-3 hour, insulation, continue to add other leftover materials, stir 1-2 hour and get final product.
Curing process: smoke 3-5 hour at 110～150 ℃;
It solidifies rear cohesive strength and is greater than 25N, and temperature classification is 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, can long term operation 200 ℃, and 220 ℃ of short-terms, have met design requirements.
Claims (2)
1. an organic silicon insulation impregnating varnish, is characterized in that being made by the raw material of following weight part:
Polyphenylmethyl base vinylsiloxane 12-14, glycol ether benzoic ether 4-6, triethyl citrate 3-4, alkenyl succinic acid 2-3, zinc dialkyl dithiophosphate 1-2, oxidation inhibitor DSTP1-2, sec.-propyl distearyl acyl-oxygen base Aluminate 3-4, polyisobutene 6-8, cyclohexanone peroxide 1-2, methylene-bis hexamethylene alkanamine 2-3, vinyl carboxylate 3-4, vinyl acetate 5-6, calcium naphthenate 1-2, 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;
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 organic silicon insulation impregnating varnish according to claim 1, it is characterized in that comprising the following steps: by glycol ether benzoic ether, triethyl citrate, alkenyl succinic acid, sec.-propyl distearyl acyl-oxygen base Aluminate, polyisobutene, vinyl acetate mixes, be heated to 80-90 ℃, drip cyclohexanone peroxide, stirring reaction 1-2 hour, then, add polyphenylmethyl base vinylsiloxane, calcium naphthenate, membrane-forming agent, be warming up to 115-120 ℃, continue to stir 2-3 hour, insulation, continue to add other leftover materials, stir 1-2 hour and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576575.3A CN103666251A (en) | 2013-11-18 | 2013-11-18 | Organosilicone insulation impregnating varnish and preparation method thereof |
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| CN201310576575.3A CN103666251A (en) | 2013-11-18 | 2013-11-18 | Organosilicone insulation impregnating varnish and preparation method thereof |
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| CN103666251A true CN103666251A (en) | 2014-03-26 |
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| CN201310576575.3A Pending CN103666251A (en) | 2013-11-18 | 2013-11-18 | Organosilicone insulation impregnating varnish and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009091545A (en) * | 2007-09-20 | 2009-04-30 | Jgc Catalysts & Chemicals Ltd | Application liquid for forming silica-based coating film, preparation method for application liquid, and silica-based insulation film obtained from application liquid |
| CN101649158A (en) * | 2009-08-25 | 2010-02-17 | 苏州大学 | Organosilicon insulating impregnating varnish and preparation method thereof |
| CN103382367A (en) * | 2013-06-27 | 2013-11-06 | 马鞍山采石矶涂料有限公司 | Organic silicon insulating impregnating varnish and preparation method thereof |
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2013
- 2013-11-18 CN CN201310576575.3A patent/CN103666251A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009091545A (en) * | 2007-09-20 | 2009-04-30 | Jgc Catalysts & Chemicals Ltd | Application liquid for forming silica-based coating film, preparation method for application liquid, and silica-based insulation film obtained from application liquid |
| CN101649158A (en) * | 2009-08-25 | 2010-02-17 | 苏州大学 | Organosilicon insulating impregnating varnish and preparation method thereof |
| CN103382367A (en) * | 2013-06-27 | 2013-11-06 | 马鞍山采石矶涂料有限公司 | Organic silicon insulating impregnating varnish and preparation method thereof |
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Application publication date: 20140326 |