CN103642375A - Yellow stain resistant impregnating varnish and preparation method thereof - Google Patents
Yellow stain resistant impregnating varnish and preparation method thereof Download PDFInfo
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- CN103642375A CN103642375A CN201310568513.8A CN201310568513A CN103642375A CN 103642375 A CN103642375 A CN 103642375A CN 201310568513 A CN201310568513 A CN 201310568513A CN 103642375 A CN103642375 A CN 103642375A
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Abstract
The invention relates to a yellow stain resistant impregnating varnish and a preparation method, and the impregnating varnish comprises the following raw materials by weight: 45-48 parts of long oil length alkyd resins, 12-14 partsof E-12 epoxy resin, 4-6 parts of triphenyl phosphate, 23-26 parts of xylene, 4-6 parts of propylene glycol, 4-5 parts of zinc naphthenate, 2-3 parts of methylene double cyclohexane amine, 1-2 parts of hydroquinone, 6-9 parts of phenyltrichlorosilane, 2-3 parts of vinyl propionate, 4-6 parts of acrylonitrile and 4-5 parts of film forming agent. The impregnating varnish has the characteristics that the yellow stain resistant performance is provided, long term usage makes invariant color, triphenyl phosphite has antioxidation performance and has the advantages of high temperature resistance, high moisture resistance, good electrical isolation performance and high mechanical strength, the thermal conductivity is improved, long-term work can be carried out at 200 DEG C, and the short period work can be carried out at 220 DEG C, so that the design requirement can be satisfied.
Description
Technical field
The invention belongs to insulating material field, relate to a kind of impregnating varnish, especially a kind of impregnating varnish of resistance to xanthochromia 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 impregnating varnish of resistance to xanthochromia and preparation method thereof.
Technical scheme of the present invention is as follows:
A kind of impregnating varnish of resistance to xanthochromia, is characterized in that being made by the raw material of following weight part:
Long oil alkyd 45-48, E-12 epoxy resin 12-14, triphenyl phosphite 4-6, dimethylbenzene 23-26, propylene glycol 4-6, zinc naphthenate 4-5, methylene-bis hexamethylene alkanamine 2-3, Resorcinol 1-2, phenyl-trichloro-silicane 6-9, propionate 2-3, vinyl cyanide 4-6, membrane-forming agent 4-5.
Described membrane-forming agent is made by the raw material of following weight part: phenyl triethoxysilane 1-2, anilinomethyl triethoxysilane 1-2, ferrocene 2-3, aluminium nitride 1-2, nano-attapulgite 1-2, epoxy soybean oil 4-5, morpholine 1-2, polyisobutene 3-4;
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 the described impregnating varnish of resistance to xanthochromia, it is characterized in that comprising the following steps: zinc naphthenate, Resorcinol, phenyl-trichloro-silicane, propionate, vinyl cyanide, triphenyl phosphite are mixed, be heated to 120-130 ℃, stirring reaction 3-4 hour, then, add other remaining component, stir 1-2 hour and get final product.
The present invention mainly designs with the formula of the impregnating varnish of resistance to xanthochromia electrical machine insulation dipping, selects Resorcinol to improve product storage property, selects E-12 epoxy resin to increase hardness of paint film; Utilize formula of the present invention can make temperature classification reach H level.And can access excellent electrical properties, physical strength is high, moistureproofness good, solidification value is low, cohesiveness is high, the impregnating varnish of resistance to xanthochromia of excellent storage stability.
The resistance to xanthochromia of impregnating varnish of the present invention, life-time service nondiscoloration, triphenyl phosphite is anti-oxidant, can high temperature resistant, high humidity, electrical insulation capability is good, and physical strength is high, has improved thermal conductivity, can long term operation 200 ℃, 220 ℃ of short-terms, have met design requirements.The present invention has excellent electrical properties, physical strength is high, moistureproofness good, solidification value is low, cohesiveness is high, the feature of excellent storage stability.
Embodiment
A kind of impregnating varnish of resistance to xanthochromia, by the raw material of following weight part (kilogram) make:
Long oil alkyd 48, E-12 epoxy resin 14, triphenyl phosphite 6, dimethylbenzene 26, propylene glycol 4, zinc naphthenate 5, methylene-bis hexamethylene alkanamine 3, Resorcinol 1, phenyl-trichloro-silicane 9, propionate 2, vinyl cyanide 6, membrane-forming agent 5.
Described membrane-forming agent is made by the raw material of following weight part: phenyl triethoxysilane 2, anilinomethyl triethoxysilane 2, ferrocene 2, aluminium nitride 1, nano-attapulgite 2, epoxy soybean oil 5, morpholine 1, polyisobutene 4;
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 the impregnating varnish of resistance to xanthochromia, comprise the following steps: zinc naphthenate, Resorcinol, phenyl-trichloro-silicane, propionate, vinyl cyanide, triphenyl phosphite are mixed, be heated to 120-130 ℃, stirring reaction 3-4 hour, then, add other remaining component, 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. the impregnating varnish of resistance to xanthochromia, is characterized in that being made by the raw material of following weight part:
Long oil alkyd 45-48, E-12 epoxy resin 12-14, triphenyl phosphite 4-6, dimethylbenzene 23-26, propylene glycol 4-6, zinc naphthenate 4-5, methylene-bis hexamethylene alkanamine 2-3, Resorcinol 1-2, phenyl-trichloro-silicane 6-9, propionate 2-3, vinyl cyanide 4-6, membrane-forming agent 4-5;
Described membrane-forming agent is made by the raw material of following weight part: phenyl triethoxysilane 1-2, anilinomethyl triethoxysilane 1-2, ferrocene 2-3, aluminium nitride 1-2, nano-attapulgite 1-2, epoxy soybean oil 4-5, morpholine 1-2, polyisobutene 3-4;
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 the impregnating varnish of resistance to xanthochromia according to claim 1, is characterized in that comprising the following steps:
Zinc naphthenate, Resorcinol, phenyl-trichloro-silicane, propionate, vinyl cyanide, triphenyl phosphite are mixed, be heated to 120-130 ℃, stirring reaction 3-4 hour, then, adds other remaining component, stirs 1-2 hour and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568513.8A CN103642375A (en) | 2013-11-15 | 2013-11-15 | Yellow stain resistant impregnating varnish and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568513.8A CN103642375A (en) | 2013-11-15 | 2013-11-15 | Yellow stain resistant impregnating varnish and preparation method thereof |
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| CN103642375A true CN103642375A (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310568513.8A Pending CN103642375A (en) | 2013-11-15 | 2013-11-15 | Yellow stain resistant impregnating varnish and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098987A (en) * | 2014-07-28 | 2014-10-15 | 广西梧州龙鱼漆业有限公司 | Anti-yellowing epoxy resin coating and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270258A (en) * | 2008-03-14 | 2008-09-24 | 天津大田包装容器有限公司 | Steel drum paint special for baking type alcohol acid amido and method of preparing the same |
| CN101475767A (en) * | 2006-03-31 | 2009-07-08 | 中国科学院过程工程研究所 | Coating for collecting formaldehyde |
| CN101962508A (en) * | 2010-07-12 | 2011-02-02 | 深圳市天健涂料科技开发有限公司 | Imitation copper paint and preparation method and construction technology thereof |
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2013
- 2013-11-15 CN CN201310568513.8A patent/CN103642375A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475767A (en) * | 2006-03-31 | 2009-07-08 | 中国科学院过程工程研究所 | Coating for collecting formaldehyde |
| CN101270258A (en) * | 2008-03-14 | 2008-09-24 | 天津大田包装容器有限公司 | Steel drum paint special for baking type alcohol acid amido and method of preparing the same |
| CN101962508A (en) * | 2010-07-12 | 2011-02-02 | 深圳市天健涂料科技开发有限公司 | Imitation copper paint and preparation method and construction technology thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098987A (en) * | 2014-07-28 | 2014-10-15 | 广西梧州龙鱼漆业有限公司 | Anti-yellowing epoxy resin coating and preparation method thereof |
| CN104098987B (en) * | 2014-07-28 | 2016-06-22 | 广西梧州龙鱼漆业有限公司 | Color inhibition epoxy coating and preparation method thereof |
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Application publication date: 20140319 |