CN105348502A - Aqueous insulating paint and preparation method thereof - Google Patents
Aqueous insulating paint and preparation method thereof Download PDFInfo
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- CN105348502A CN105348502A CN201510916946.7A CN201510916946A CN105348502A CN 105348502 A CN105348502 A CN 105348502A CN 201510916946 A CN201510916946 A CN 201510916946A CN 105348502 A CN105348502 A CN 105348502A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/91—Polymers modified by chemical after-treatment
- C08G63/914—Polymers modified by chemical after-treatment derived from polycarboxylic acids and polyhydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/29—Compounds containing one or more carbon-to-nitrogen double bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/307—Other macromolecular compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Chemical & Material Sciences (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to aqueous insulating paint and a preparation method thereof. The aqueous insulating paint is prepared from the following raw materials in percentage by weight: 5 to 20 percent of polyhydric alcohol; 10 to 25 percent of binary acid; 10 to 25 percent of unsaturated fatty acid; 5 to 20 percent of colopholic acid; 5 to 15 percent of cosolvent; 0.5 to 2 percent of modified amine neutralizer; 5 to 15 percent of waterborne curing agent; 30 to 50 percent of water. According to the preparation method provided by the invention, the polyhydric alcohol and binary acid are enabled to be subjected to a condensation reaction to generate OH-terminated hyperbranched polyester according to a certain ratio, then the unsaturated fatty acid and colopholic acid are used to perform terminal group modification on the hyperbranched polyester, then the cosolvent, modified amine neutralizer, waterborne curing agent and a large amount of water are added to prepare the aqueous insulating paint. The aqueous insulating paint has the advantages of being low in curing temperature, good in water solubility, high in degree of branching, good in stability and the like, and can be subjected to tin soldering for a second time.
Description
Technical field
The present invention relates to a kind of insulative water paint and preparation method thereof.
Background technology
Along with improving constantly of environmental requirement, the drawback of solvent-borne type insullac is day by day remarkable, and therefore the exploitation of insulative water paint is imperative.Current water-miscible paint kind mainly contains water-base epoxy, water soluble acrylic acid, waterborne polyester, but major part is all emulsion or bicomponent system, is mainly used in surface coatings art.Applicant is engaged in the R&D work of solvent-borne type and single-component water-based impregnating varnish.Current water-based impregnating varnish is all adopt in amine and carboxyl, generates salt, adds a large amount of alcohols or ethers solubility promoter and then obtains water soluble resin.This water soluble resin employs the material such as amine and ethers in synthesis, although relatively traditional solvent-borne reduces VOC, due to addition is comparatively large also can to environmental concerns, and such water-based impregnating varnish to bake temperature higher, generally all need more than 130 DEG C bakings, limit to Application Areas.
According to current water-miscible paint application market demand, need secondary scolding tin after high-frequency electronic transformer impregnation insullac, current insulative water paint both domestic and external all can not meet the requirement of secondary scolding tin.Water-soluble insulating varnish storing temperature is greatly about more than 135 DEG C in the market, and a lot of B-class insulation paint (130 DEG C) product cannot use because water-miscible paint storing temperature has exceeded product insulation level, in addition, there is long-term storage and produce the problem of hydrolysis in water-miscible paint.
Summary of the invention
Technical problem to be solved by this invention is to provide that a kind of solidification value is low, not facile hydrolysis and have insulative water paint of secondary soldering property and preparation method thereof.
For solving above technical problem, the present invention takes following technical scheme:
A kind of insulative water paint, by weight percentage, its composition of raw materials is:
Preferably, described polyvalent alcohol is for being selected from ethylene glycol, propylene glycol, Diethylene Glycol, neopentyl glycol, glycerol, TriMethylolPropane(TMP) or tetramethylolmethane.
Preferably, described diprotic acid is the combination of one or more be selected from Tetra hydro Phthalic anhydride, hexanodioic acid, SA, isophthalic anhydride, MALEIC ANHYDRIDE, methyl tetrahydro phthalic anhydride, methyl hexahydrophthalic anhydride.
Preferably, described unsaturated fatty acids is for being selected from oleic acid, linolic acid, linolenic acid, coco-nut oil fatty acid or ricinolic acid.
Preferably, described solubility promoter is for being selected from ethylene glycol ethyl ether, diethylene glycol ether, butyl glycol ether, propylene glycol monomethyl ether, propylene-glycol ethyl ether, propandiol butyl ether or dipropylene glycol methyl ether.
Preferably, described modified amine neutralizing agent is for being selected from dimethylethanolamine, diethylenetriamine or triethylene tetramine.
Preferably, described waterborne curing agent is for being selected from methyl-etherified terpolycyantoamino-formaldehyde resin, full-enclosed type HDI isocyanic ester or totally-enclosed property TDI isocyanic ester.
Preferably, the preparation method of described insulative water paint is:
Described polyvalent alcohol and described diprotic acid are carried out polycondensation to acid number≤10mgKOH/g at 180 ~ 200 DEG C; Then add described unsaturated fatty acids and described sylvic acid, react to acid number≤40mgKOH/g at 200 ~ 220 DEG C; Be cooled to 120 ~ 140 DEG C, add described solubility promoter, after mixing, be cooled to less than 90 DEG C, add described modified amine neutralizing agent and described water, the pH controlling reaction system is 7.5 ~ 8, then add described waterborne curing agent, mix and obtain described insulative water paint.
A preparation method for described insulative water paint, carries out polycondensation to acid number≤10mgKOH/g by described polyvalent alcohol and described diprotic acid at 180 ~ 200 DEG C; Then add described unsaturated fatty acids and described sylvic acid, react to acid number≤40mgKOH/g at 200 ~ 220 DEG C; Be cooled to 120 ~ 140 DEG C, add described solubility promoter, after mixing, be cooled to less than 90 DEG C, add described modified amine neutralizing agent and described water, the pH controlling reaction system is 7.5 ~ 8, then add described waterborne curing agent, mix and obtain described insulative water paint.
Due to the enforcement of above technical scheme, the present invention compared with prior art tool has the following advantages:
The present invention adopt polyvalent alcohol and diprotic acid according to a certain percentage gather reaction generate superbrnaching end-hydroxy polyester, then unsaturated fatty acids and sylvic acid is used to carry out terminal groups modification to hyper-branched polyester, then solubility promoter, modified amine neutralizing agent is added, waterborne curing agent and a large amount of water, configure insulative water paint.Dissaving structure is introduced by formula, can reduce the cross-linking density of storing temperature and raising cured article, solve the drawback that existing water-miscible paint needs high bake, design end group molecular chain is hydrophilic radical, increase water-soluble, solve water-miscible paint and the miscible problem of water arbitrary proportion; Access rosin in molecular chain, giving water-miscible paint can soldering property, and solving existing water-miscible paint can not a secondary scolding tin difficult problem; Because the water-miscible paint of preparation has dissaving structure, so the degree of branching is enhanced.The minimum solidification value of the insulative water paint that the present invention obtains only needs 105 DEG C, not only widen the Application Areas of water-miscible paint, also save the energy simultaneously, in addition, the insulative water paint that the present invention obtains not only overcomes water-miscible paint long-term storage and produces a difficult problem for hydrolysis but also improve mechanical property and the electrical property of water-miscible paint.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described in detail, but the invention is not restricted to following examples.The all commercially available acquisition of following raw material.
Embodiment 1
In there-necked flask, add 92g glycerol, 133.2g Tetra hydro Phthalic anhydride, temperature control 180 DEG C of polycondensations are about 10mgKOH/g to acid number, add 141g oleic acid and 90g sylvic acid, be warming up to 200 DEG C of continuation reactions and be about 40mgKOH/g to acid number, be cooled to 140 DEG C and add 70g butyl glycol ether, stir, be cooled to 90 DEG C and add about 10g modified amine neutralizing agent dimethylethanolamine and 290g water, control ph 7.5 ~ 8 finally adds 80g waterborne curing agent methyl-etherified terpolycyantoamino-formaldehyde resin, stirs, prepares high-performance water-based insullac.The performance of insulative water paint is see table 1.
Embodiment 2
In there-necked flask, add 92g glycerol, 88.8g Tetra hydro Phthalic anhydride, 43.8g hexanodioic acid, temperature control 200 DEG C of polycondensations are about 10mgKOH/g to acid number, add 140g linolic acid and 90g sylvic acid, be warming up to 220 DEG C of continuation reactions and be about 40mgKOH/g to acid number, be cooled to 140 DEG C and add 80g propylene glycol monomethyl ether, stir, be cooled to 90 DEG C and add about 8g modified amine neutralizing agent diethylenetriamine and 300g water, control ph 7.5 ~ 8 finally adds 60g waterborne curing agent totally-enclosed property TDI isocyanic ester, stir, prepare high-performance water-based insullac.The performance of insulative water paint is see table 1.
Embodiment 3
In there-necked flask, add 134g TriMethylolPropane(TMP), 87.6g hexanodioic acid, 60.6g SA, temperature control 200 DEG C of polycondensations are about 10mgKOH/g to acid number, add 140g linolic acid and 90g sylvic acid, be warming up to 220 DEG C of continuation reactions and be about 40mgKOH/g to acid number, be cooled to 140 DEG C and add 90g butyl glycol ether, stir, be cooled to 90 DEG C and add about 11g modified amine neutralizing agent dimethylethanolamine and 320g water, control ph 7.5 ~ 8 finally adds 65g waterborne curing agent totally-enclosed property HDI isocyanic ester, stir, prepare high-performance water-based insullac.The performance of insulative water paint is see table 1.
Comparative example 1
In there-necked flask, add 92g glycerol, 133.2g Tetra hydro Phthalic anhydride, 197g behenic acid and 30g sylvic acid, be warming up to 200 DEG C of reaction to acid numbers and be about 40mgKOH/g, be cooled to 140 DEG C and add 70g butyl glycol ether, about 10g modified amine neutralizing agent dimethylethanolamine, 290g water, 60g methyl-etherified terpolycyantoamino-formaldehyde resin solidifying agent, stir, prepare insulative water paint.The performance of insulative water paint is see table 1.
Comparative example 2
In there-necked flask, add 210g glycerol, 85g Tetra hydro Phthalic anhydride, temperature control 180 DEG C of polycondensations are about 10mgKOH/g to acid number, add 85g behenic acid and 210g sylvic acid, be warming up to 230 DEG C of continuation reactions and be about 40mgKOH/g to acid number, be cooled to 140 DEG C and add 42.5g butyl glycol ether, stir, be cooled to 90 DEG C and add about 8.5g modified amine neutralizing agent triethylene tetramine and 200g water, control ph 7.5 ~ 8 finally adds 70g waterborne curing agent totally-enclosed property HDI isocyanic ester, stirs, prepares insulative water paint.The performance of insulative water paint is see table 1.
Table 1
Above to invention has been detailed description; its object is to allow the personage being familiar with this art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; the equivalence change that all spirit according to the present invention are done or modification, all should be encompassed in protection scope of the present invention.
Claims (9)
1. an insulative water paint, is characterized in that: by weight percentage, and its composition of raw materials is:
Polyvalent alcohol 5 ~ 20%;
Diprotic acid 10 ~ 25%;
Unsaturated fatty acids 10 ~ 25%;
Sylvic acid 5 ~ 20%;
Solubility promoter 5 ~ 15%;
Modified amine neutralizing agent 0.5 ~ 2%;
Waterborne curing agent 5 ~ 15%;
Water 30 ~ 50%.
2. insulative water paint according to claim 1, is characterized in that: described polyvalent alcohol is for being selected from ethylene glycol, propylene glycol, Diethylene Glycol, neopentyl glycol, glycerol, TriMethylolPropane(TMP) or tetramethylolmethane.
3. insulative water paint according to claim 1, is characterized in that: described diprotic acid is the combination of one or more be selected from Tetra hydro Phthalic anhydride, hexanodioic acid, SA, isophthalic anhydride, MALEIC ANHYDRIDE, methyl tetrahydro phthalic anhydride, methyl hexahydrophthalic anhydride.
4. insulative water paint according to claim 1, is characterized in that: described unsaturated fatty acids is for being selected from oleic acid, linolic acid, linolenic acid, coco-nut oil fatty acid or ricinolic acid.
5. insulative water paint according to claim 1, is characterized in that: described solubility promoter is for being selected from ethylene glycol ethyl ether, diethylene glycol ether, butyl glycol ether, propylene glycol monomethyl ether, propylene-glycol ethyl ether, propandiol butyl ether or dipropylene glycol methyl ether.
6. insulative water paint according to claim 1, is characterized in that: described modified amine neutralizing agent is for being selected from dimethylethanolamine, diethylenetriamine or triethylene tetramine.
7. insulative water paint according to claim 1, is characterized in that: described waterborne curing agent is for being selected from methyl-etherified terpolycyantoamino-formaldehyde resin, full-enclosed type HDI isocyanic ester or totally-enclosed property TDI isocyanic ester.
8. insulative water paint according to claim 1, is characterized in that: the preparation method of described insulative water paint is:
Described polyvalent alcohol and described diprotic acid are carried out polycondensation to acid number≤10mgKOH/g at 180 ~ 200 DEG C; Then add described unsaturated fatty acids and described sylvic acid, react to acid number≤40mgKOH/g at 200 ~ 220 DEG C; Be cooled to 120 ~ 140 DEG C, add described solubility promoter, after mixing, be cooled to less than 90 DEG C, add described modified amine neutralizing agent and described water, the pH controlling reaction system is 7.5 ~ 8, then add described waterborne curing agent, mix and obtain described insulative water paint.
9. a preparation method for the insulative water paint according to any one of claim 1 to 7, is characterized in that: the preparation method of described insulative water paint is:
Described polyvalent alcohol and described diprotic acid are carried out polycondensation to acid number≤10mgKOH/g at 180 ~ 200 DEG C; Then add described unsaturated fatty acids and described sylvic acid, react to acid number≤40mgKOH/g at 200 ~ 220 DEG C; Be cooled to 120 ~ 140 DEG C, add described solubility promoter, after mixing, be cooled to less than 90 DEG C, add described modified amine neutralizing agent and described water, the pH controlling reaction system is 7.5 ~ 8, then add described waterborne curing agent, mix and obtain described insulative water paint.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510916946.7A CN105348502B (en) | 2015-12-10 | 2015-12-10 | A kind of water-based insulating paint and preparation method thereof |
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| CN201510916946.7A CN105348502B (en) | 2015-12-10 | 2015-12-10 | A kind of water-based insulating paint and preparation method thereof |
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| CN105348502B CN105348502B (en) | 2017-11-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085162A (en) * | 2016-07-19 | 2016-11-09 | 合肥英索莱特新材料科技有限公司 | The preparation method of the water-based insulating paint that the edible vegetable oil after using based on secondary or using for three times is modified |
| CN106811034A (en) * | 2016-12-15 | 2017-06-09 | 芜湖浩权建筑工程有限公司 | A kind of water-based insulating paint material and preparation method thereof |
| CN109468048A (en) * | 2018-10-29 | 2019-03-15 | 苏州太湖电工新材料股份有限公司 | A kind of water-based insulating paint of electronic transformer and its preparation method and application |
| CN109486378A (en) * | 2018-11-07 | 2019-03-19 | 苏州太湖电工新材料股份有限公司 | The flame retardant type insulated paint and its preparation method and application of resistance to ATF oil for electric vehicle |
| CN112812650A (en) * | 2021-02-06 | 2021-05-18 | 全通电缆股份有限公司 | Composite cable coating and preparation method thereof |
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| CN101338022A (en) * | 2008-08-12 | 2009-01-07 | 上海电动工具研究所 | Method for preparing synthesizing water-solubility insulating resin from vegetable fat |
| CN101880379A (en) * | 2009-05-05 | 2010-11-10 | 上海炼升化工有限公司 | Self-drying aqueous alkyd resin solution and preparation method thereof |
| CN102816498A (en) * | 2012-08-21 | 2012-12-12 | 上海电动工具研究所 | Method for preparing water-solubility insulated paint by using epoxy soybean oil |
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2015
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| CN101148497A (en) * | 2007-10-22 | 2008-03-26 | 苏州巨峰绝缘材料有限公司 | Self-drying type water-solubility alkyd resin and preparation method thereof |
| CN101338022A (en) * | 2008-08-12 | 2009-01-07 | 上海电动工具研究所 | Method for preparing synthesizing water-solubility insulating resin from vegetable fat |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085162A (en) * | 2016-07-19 | 2016-11-09 | 合肥英索莱特新材料科技有限公司 | The preparation method of the water-based insulating paint that the edible vegetable oil after using based on secondary or using for three times is modified |
| CN106811034A (en) * | 2016-12-15 | 2017-06-09 | 芜湖浩权建筑工程有限公司 | A kind of water-based insulating paint material and preparation method thereof |
| CN109468048A (en) * | 2018-10-29 | 2019-03-15 | 苏州太湖电工新材料股份有限公司 | A kind of water-based insulating paint of electronic transformer and its preparation method and application |
| CN109468048B (en) * | 2018-10-29 | 2020-01-14 | 苏州太湖电工新材料股份有限公司 | Water-based insulating paint for electronic transformer and preparation method and application thereof |
| WO2020088429A1 (en) * | 2018-10-29 | 2020-05-07 | 苏州太湖电工新材料股份有限公司 | Water-based insulating varnish for transformer, preparation method and application thereof |
| CN109486378A (en) * | 2018-11-07 | 2019-03-19 | 苏州太湖电工新材料股份有限公司 | The flame retardant type insulated paint and its preparation method and application of resistance to ATF oil for electric vehicle |
| CN109486378B (en) * | 2018-11-07 | 2020-08-04 | 苏州太湖电工新材料股份有限公司 | ATF oil-resistant flame-retardant insulating paint for electric automobile and preparation method and application thereof |
| CN112812650A (en) * | 2021-02-06 | 2021-05-18 | 全通电缆股份有限公司 | Composite cable coating and preparation method thereof |
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| CN105348502B (en) | 2017-11-10 |
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