CN103555023A - High-temperature yellowing resistant impregnating varnish and preparation method thereof - Google Patents
High-temperature yellowing resistant impregnating varnish and preparation method thereof Download PDFInfo
- Publication number
- CN103555023A CN103555023A CN201310510258.1A CN201310510258A CN103555023A CN 103555023 A CN103555023 A CN 103555023A CN 201310510258 A CN201310510258 A CN 201310510258A CN 103555023 A CN103555023 A CN 103555023A
- Authority
- CN
- China
- Prior art keywords
- parts
- impregnating varnish
- preparation
- temperature yellowing
- impregnating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Organic Insulating Materials (AREA)
Abstract
The invention discloses a high-temperature yellowing resistant impregnating varnish and a preparation method of the impregnating varnish. The impregnating varnish is characterized by comprising the following raw materials in parts by weight: 40-45 parts of thermosetting acrylic resin, 23-25 parts of organic silicon resin, 12-14 parts of phenolic resin, 6-10 parts of neopentyl glycol, 6-8 parts of propylene glycol, 4-6 parts of 582-2 amino resin, 4-5 parts of zinc naphthenate, 1-2 parts of tetrabutyltin, 2-3 parts of dibenzylamino ether, 4-5 parts of bidodecanol ester, 4-6 parts of 2-hydroxypropyl acrylate, 12-15 parts of xylene, and 4-5 parts of film forming agent. The impregnating varnish disclosed by the invention does not yellow or generate bubbles when used in a 200 DEG C high-temperature environment for a long time; the impact strength is higher than 50Kg/cm; the insulation heat endurance class is B; and therefore, the high temperature yellowing resistant impregnating varnish can be widely applied to the impregnating insulation of coils of electric appliances of small and medium-sized electric machines, transformers, rectifiers and the like.
Description
Technical field
The invention belongs to insulating material field, relate to a kind of impregnating varnish, especially a kind of capable of resisting high-temperature yellowing 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 capable of resisting high-temperature yellowing impregnating varnish and preparation method thereof.
Technical scheme of the present invention is as follows:
An impregnating varnish, is characterized in that being made by the raw material of following weight part:
Thermosetting acrylic resin 40-45, silicone resin 23-25, resol 12-14, neopentyl glycol 6-10, propylene glycol 6-8,582-2 aminoresin 4-6, zinc naphthenate 4-5, tetrabutyl tin 1-2,
phenoxybenzamine base ether 2-3,two Lauryl Alcohol ester 4-5, vinylformic acid-2-hydroxy propyl ester 4-6, dimethylbenzene 12-15, 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 capable of resisting high-temperature yellowing impregnating varnish, is characterized in that comprising the following steps: by each mixing of materials, be heated to 125-130 ℃, stirring reaction 3-4 hour, obtains.
The present invention is life-time service xanthochromia, non-foaming not under the hot environment of 200 ℃ of impregnating varnishes, and shock strength is greater than 50Kg/cm, and insulation temperature classification is B level, can be widely used in the varnished insulation of the electric apparatus coils such as middle and small motor coil, transformer, rectifier.
Embodiment
An impregnating varnish, by the raw material of following weight part (kilogram) make:
Thermosetting acrylic resin 45, silicone resin 25, resol 14, neopentyl glycol 10, propylene glycol 6,582-2 aminoresin 6, zinc naphthenate 5, tetrabutyl tin 1,
phenoxybenzamine base ether 3,two Lauryl Alcohol esters 5, vinylformic acid-2-hydroxy propyl ester 4, dimethylbenzene 15, 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 capable of resisting high-temperature yellowing impregnating varnish, comprises the following steps: by each mixing of materials, be heated to 125-130 ℃, stirring reaction 3-4 hour, obtains.
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 energy capable of resisting high-temperature yellowing of the present invention, 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.
Claims (2)
1. a capable of resisting high-temperature yellowing impregnating varnish, is characterized in that being made by the raw material of following weight part:
Thermosetting acrylic resin 40-45, silicone resin 23-25, resol 12-14, neopentyl glycol 6-10, propylene glycol 6-8,582-2 aminoresin 4-6, zinc naphthenate 4-5, tetrabutyl tin 1-2,
phenoxybenzamine base ether 2-3,two Lauryl Alcohol ester 4-5, vinylformic acid-2-hydroxy propyl ester 4-6, dimethylbenzene 12-15, 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 capable of resisting high-temperature yellowing impregnating varnish according to claim 1, is characterized in that comprising the following steps: by each mixing of materials, be heated to 125-130 ℃, stirring reaction 3-4 hour, obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310510258.1A CN103555023A (en) | 2013-10-25 | 2013-10-25 | High-temperature yellowing resistant impregnating varnish and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310510258.1A CN103555023A (en) | 2013-10-25 | 2013-10-25 | High-temperature yellowing resistant impregnating varnish and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103555023A true CN103555023A (en) | 2014-02-05 |
Family
ID=50009396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310510258.1A Pending CN103555023A (en) | 2013-10-25 | 2013-10-25 | High-temperature yellowing resistant impregnating varnish and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103555023A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01261467A (en) * | 1988-04-13 | 1989-10-18 | Kansai Paint Co Ltd | Paint for dip coating |
| CN1800283A (en) * | 2005-01-05 | 2006-07-12 | 中国科学院过程工程研究所 | Insulating mold coating and its uses |
| CN101121861A (en) * | 2007-08-01 | 2008-02-13 | 株洲时代新材料科技股份有限公司 | Low-viscosity solvent-free organic silicon insulation impregnating varnish and preparation method thereof |
| CN101381583A (en) * | 2008-10-20 | 2009-03-11 | 株洲时代新材料科技股份有限公司 | High heat conduction organosilicon dip varnish |
| CN101921529A (en) * | 2010-08-18 | 2010-12-22 | 东华大学 | Heat-resistant solvent-free immersion paint and preparation method thereof |
-
2013
- 2013-10-25 CN CN201310510258.1A patent/CN103555023A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01261467A (en) * | 1988-04-13 | 1989-10-18 | Kansai Paint Co Ltd | Paint for dip coating |
| CN1800283A (en) * | 2005-01-05 | 2006-07-12 | 中国科学院过程工程研究所 | Insulating mold coating and its uses |
| CN101121861A (en) * | 2007-08-01 | 2008-02-13 | 株洲时代新材料科技股份有限公司 | Low-viscosity solvent-free organic silicon insulation impregnating varnish and preparation method thereof |
| CN101381583A (en) * | 2008-10-20 | 2009-03-11 | 株洲时代新材料科技股份有限公司 | High heat conduction organosilicon dip varnish |
| CN101921529A (en) * | 2010-08-18 | 2010-12-22 | 东华大学 | Heat-resistant solvent-free immersion paint and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103382366B (en) | A kind of high-temperature resistant silicone impregnating varnish and preparation method thereof | |
| CN103409062A (en) | High-temperature-resistant organic silicon impregnating varnish and preparation method thereof | |
| CN103382319A (en) | Epoxy impregnated resin and preparation method thereof | |
| CN103382352A (en) | Filling type heat-conductive insulating impregnating varnish and preparation method thereof | |
| CN106811023B (en) | A kind of environment-friendly type wind-driven generator VPI impregnating resin and preparation method thereof | |
| CN100420715C (en) | Solventless immersion resin used for high voltage electric machine vacuum pressure immersion | |
| CN103409030B (en) | A kind of high temperature resistant aminoresin impregnating varnish and preparation method thereof | |
| CN107227133A (en) | A kind of High-Voltage Electrical Appliances Heat Conductive Insulation Adhesive and preparation method thereof | |
| CN105086822A (en) | High-performance heat conducting coating | |
| CN106118164A (en) | A kind of coatings of power equipment | |
| CN100564466C (en) | Resin emulsion paint special for epoxy pnenolic aldehyde stalloy and preparation method thereof | |
| CN108831740A (en) | A kind of dry-type transformer dipping paint method | |
| CN103555023A (en) | High-temperature yellowing resistant impregnating varnish and preparation method thereof | |
| CN106800864A (en) | Water-based insulating paint | |
| CN105694249A (en) | Multifunctional cable for high-speed rail construction and installation | |
| CN106065281B (en) | Porcelain core used in composite insulator room temperature vulcanized silicone rubber and preparation method thereof | |
| CN105838203A (en) | Preparing method for high-temperature-resistant heat conducting water-based insulating paint | |
| CN103382347B (en) | A kind of high temperature resisting dipping paint and preparation method thereof | |
| CN103382367B (en) | A kind of organic silicon insulation impregnating varnish and preparation method thereof | |
| CN103555136A (en) | Epoxy impregnating varnish and preparation method thereof | |
| CN103122200A (en) | Expoxy self-adhesion paint with heat dissipation function and preparation method thereof | |
| CN103642358A (en) | Epoxy dipping resin and preparation method | |
| CN104962167A (en) | High-temperature-resistant insulating paint and preparation method thereof | |
| CN103773198B (en) | A kind of high and low frequency electronic transformer impregnating resin | |
| CN103382318A (en) | Compound impregnating varnish and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140205 |