CN103642371A - Oil-resistant nonsaturated polyester imine solvent-free impregnating varnish and preparation method thereof - Google Patents
Oil-resistant nonsaturated polyester imine solvent-free impregnating varnish and preparation method thereof Download PDFInfo
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- CN103642371A CN103642371A CN201310568554.7A CN201310568554A CN103642371A CN 103642371 A CN103642371 A CN 103642371A CN 201310568554 A CN201310568554 A CN 201310568554A CN 103642371 A CN103642371 A CN 103642371A
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Abstract
The invention relates to an oil-resistant nonsaturated polyester imine solvent-free impregnating varnish and a preparation method, the solvent-free impregnating varnish comprises the following raw materials by weight: 32-35 parts of nonsaturated polyester imine resin, 12-14 parts of bimaleimide resin, 12-14 parts of dimethyl formamide, 2-3 parts of catechol, 6-8 parts of styrene, 1-2 parts of anti-oxidant 1010, 3-5 parts of vinyl propionate, 6-8 parts of acrylonitrile, 2-3 parts of trimethyl diamine, 5-7 parts of phenyltrichlorosilane, 2-3 parts of 2-amino-2-methyl-1-propanol, 25-28 parts of xylene and 4-5 parts of film forming agent. The oil-resistant nonsaturated polyester imine solvent-free impregnating varnish has the characteristics of heat resistance, moderate viscosity and long storage life, and can be used for vacuum pressure dipping according to a routine technology at normal temperature, the dipped coil has good comprehensive property, the technology capability of the coil dipping treatment is improved, and the heat resistance is greatly increased.
Description
Technical field
The invention belongs to insulating material field, relate to a kind of impregnating varnish, especially a kind of oil resistant unsaturated polyester-imide solvent-free immersion paint 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 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 oil resistant unsaturated polyester-imide solvent-free immersion paint and preparation method thereof.
Technical scheme of the present invention is as follows:
An oil resistant unsaturated polyester-imide solvent-free immersion paint, is characterized in that being made by the raw material of following weight part: unsaturated polyester-imide resin 32-35, bimaleimide resin 12-14, dimethyl formamide 12-14, catechol 2-3, vinylbenzene 6-8, antioxidant 1010 1-2, propionate 3-5, vinyl cyanide 6-8, trimethylammonium be diamines 2-3, phenyl-trichloro-silicane 5-7,2-amino-2-methyl isophthalic acid-propyl alcohol 2-3, dimethylbenzene 25-28, 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 described oil resistant unsaturated polyester-imide solvent-free immersion paint, it is characterized in that comprising the following steps: catechol, vinylbenzene, antioxidant 1010, propionate, vinyl cyanide, phenyl-trichloro-silicane, 2-amino-2-methyl isophthalic acid-propyl alcohol, dimethylbenzene are mixed, be heated to 110-120 ℃, stirring reaction 2-3 hour, add again other composition, continue stir 1-2 hour and get final product.
Thermotolerance of the present invention, viscosity ratio is more moderate, storage period is long, and under normal temperature, technique is as vacuum pressure impregnation routinely, and the coil over-all properties of institute's dip treating is good, improved the manufacturability of coil dip treating, and thermotolerance is greatly improved.
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 oil resistant unsaturated polyester-imide solvent-free immersion paint, by the raw material of following weight part (kilogram) make: unsaturated polyester-imide resin 35, bimaleimide resin 14, dimethyl formamide 12, catechol 3, vinylbenzene 8, antioxidant 1010 2, propionate 5, vinyl cyanide 8, trimethylammonium be diamines 3, phenyl-trichloro-silicane 7,2-amino-2-methyl isophthalic acid-propyl alcohol 3, dimethylbenzene 25, 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 oil resistant unsaturated polyester-imide solvent-free immersion paint, comprise the following steps: catechol, vinylbenzene, antioxidant 1010, propionate, vinyl cyanide, phenyl-trichloro-silicane, 2-amino-2-methyl isophthalic acid-propyl alcohol, dimethylbenzene are mixed, be heated to 110-120 ℃, stirring reaction 2-3 hour, add again other composition, continue 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 oil resistant unsaturated polyester-imide solvent-free immersion paint, is characterized in that being made by the raw material of following weight part: unsaturated polyester-imide resin 32-35, bimaleimide resin 12-14, dimethyl formamide 12-14, catechol 2-3, vinylbenzene 6-8, antioxidant 1010 1-2, propionate 3-5, vinyl cyanide 6-8, trimethylammonium be diamines 2-3, phenyl-trichloro-silicane 5-7,2-amino-2-methyl isophthalic acid-propyl alcohol 2-3, dimethylbenzene 25-28, 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 oil resistant unsaturated polyester-imide solvent-free immersion paint according to claim 1, it is characterized in that comprising the following steps: catechol, vinylbenzene, antioxidant 1010, propionate, vinyl cyanide, phenyl-trichloro-silicane, 2-amino-2-methyl isophthalic acid-propyl alcohol, dimethylbenzene are mixed, be heated to 110-120 ℃, stirring reaction 2-3 hour, add again other composition, continue stir 1-2 hour and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568554.7A CN103642371A (en) | 2013-11-15 | 2013-11-15 | Oil-resistant nonsaturated polyester imine solvent-free impregnating varnish and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568554.7A CN103642371A (en) | 2013-11-15 | 2013-11-15 | Oil-resistant nonsaturated polyester imine solvent-free impregnating varnish and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103642371A true CN103642371A (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310568554.7A Pending CN103642371A (en) | 2013-11-15 | 2013-11-15 | Oil-resistant nonsaturated polyester imine solvent-free impregnating varnish and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103642371A (en) |
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2013
- 2013-11-15 CN CN201310568554.7A patent/CN103642371A/en active Pending
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Application publication date: 20140319 |
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| RJ01 | Rejection of invention patent application after publication |