CN108912318A - A kind of modified water-based alkyd resin and baking vanish prepared therefrom - Google Patents
A kind of modified water-based alkyd resin and baking vanish prepared therefrom Download PDFInfo
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- CN108912318A CN108912318A CN201810771026.4A CN201810771026A CN108912318A CN 108912318 A CN108912318 A CN 108912318A CN 201810771026 A CN201810771026 A CN 201810771026A CN 108912318 A CN108912318 A CN 108912318A
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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
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/46—Polyesters chemically modified by esterification
- C08G63/48—Polyesters chemically modified by esterification by unsaturated higher fatty oils or their acids; by resin acids
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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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- 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
- C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
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Abstract
The invention proposes a kind of modified water-based alkyd resins and baking vanish prepared therefrom.The invention is using castor oil cheap and easy to get, epoxy resin as modifying agent, with polyalcohol, polyacid and esterification catalyst, pass through dehydrating condensation, it is modified, the multi-steps end reaction synthesis modification aqueous alkide resin such as Water-borne modification, the water alcohol acid amino-stoving varnish being prepared into is compounded with this modified water-based alkyd resin and amino resins, levelling agent, defoaming agent and catalyst etc., the impregnated insulating paint that can be used as all kinds of H grades and following middle and small motor, electric appliance can also be used as the surface bottom baking vanish of metal product.The aqueous amino-stoving varnish of this modified water-based alkyd resin preparation has：(1) excellent storage stability and water-fast, weatherability；(2) rate of drying is fast, and hardness is high, and adhesive force is good, impact resistance, acid and alkali-resistance, scrubbing resistance；(3) with water as solvent, any benzene kind solvent, low VOC emission, energy conservation and environmental protection are free of；(4) excellent electric property and mechanical performance.
Description
Technical field
This application involves a kind of modified water-based alkyd resins and baking vanish prepared therefrom, belong to the technology neck of chemical engineering
Domain.
Background technique
With the continuous deterioration of current mankind living environment, the mankind have faced the serious challenge of severe environmental pollution.?
The common appealing of National Environmental Protection Agency and the whole people are under promotion, and people start environmental pollution zero tolerance, and refusal oil paint is
Slogan as each environmentalist.Compared with traditional oil paint, water paint is because being free of any first with water as solvent
Benzene, dimethylbenzene, styrene, solvent naphtha etc. be inflammable and explosive, poisonous and hazardous organic solvent and progress into people's production and living
Every field, replacing oil paint has been trend of the times, the desire of the people.
The water alcohol acid amino-stoving varnish for compounding preparation with amino resins with aqueous alkide resin is gradually new in current each field
It rises and, start to be received by people.But stability, water-fast weatherability, impact resistance, acid and alkali-resistance, scrubbing resistance, rate of drying,
Mechanical strength and adhesive force etc. performance still have certain gap compared with traditional oily paint, hinder its further expansion
Using.
Be modified to aqueous alkide resin is to solve the problems, such as above all effective ways.Epoxy resin has rate of drying
Fastly, the performances such as mechanical strength height, but also have hard and crisp birth defect；Castor oil is common crude vegetal, is had good
Water-fast weather-proof, acid-proof alkaline castor oil and asphalt mixtures modified by epoxy resin are combined with castor oil and epoxy resin modified aqueous alkyd resin
The advantages of rouge, obtained modified water-based alkyd resin have excellent stability, water-fast weatherability, impact resistance, acid and alkali-resistance, resistance to
Scouring, rate of drying, mechanical strength and adhesive force solve the shortcoming of water alcohol acid amino-stoving varnish, have broken current
The predicament that " oil turns water " is faced will lead the innovation situation of paint industry.
Summary of the invention
The application in order to overcome the above-mentioned defects in the prior art, proposes a kind of modified water-based alkyd resin and by its system
Standby baking vanish.
According to a kind of modified water-based alkyd resin of the application, which is characterized in that mainly by the component system of following mass parts
At：
Preferably, the polyalcohol be neopentyl glycol, trimethylolpropane, triethylene-glycol, propoxylated bisphenol and
1,4-butanediol, mass parts are respectively 12-18 parts, 8-12 parts, 3-5 parts, 4-8 parts, 3-5 parts.The polyacid and/or acid anhydrides
For M-phthalic acid, terephthalic acid (TPA), phthalic anhydride, cis-butenedioic anhydride and tetrahydrophthalic anhydride, mass parts are respectively 10-14 parts, 0-5 parts, 2-5
Part, 0-5 parts, 15-20 parts.The cosolvent is isobutanol, in ethylene glycol monobutyl ether, butyl, propylene glycol monomethyl ether
It is at least one；The neutralizer is triethylamine, tetrahydro -1,4- oxazines, N, at least one of N- dimethylethanolamine.The ester
Change catalyst is organic tin esterification catalyst；The epoxy resin is at least one of E12, E20, E44, E51.
The preparation method of the modified water-based alkyd resin can be：Under nitrogen protection, by castor oil and polyalcohol, more
First acid and/or acid anhydrides and esterification catalyst obtain performed polymer through polycondensation reaction in 160-230 DEG C, are then cooled to 180-190 DEG C
Epoxy resin is added to be modified again, when insulation reaction to acid value is lower than 10mg KOH/g, cooling；It is added in 150-180 DEG C of grafting inclined
Benzenetricarboxylic anhydride Water-borne modification, insulation reaction to acid value is 45-55mg KOH/g, then is cooled to 100-120 DEG C, and cosolvent is added in
With agent to get arrive modified water-based alkyd resin.
It is highly preferred that the preparation method of the modified water-based alkyd resin is：Under nitrogen protection, by castor oil with it is polynary
In alcohol, polyacid and/or acid anhydrides and esterification catalyst investment reaction kettle, 160~230 DEG C of 2~5h of reaction are heated to, are then cooled down
To 180~190 DEG C, epoxy resin is added, heat preservation the reaction was continued 1~2h until system acid value is lower than 10mg KOH/g, then cools down
To 150~180 DEG C, trimellitic anhydride is added, in 160~180 DEG C of 1~2h of insulation reaction until acid value is 45~55mg KOH/
G, is cooled to 100-120 DEG C, and cosolvent, neutralizer is added, the reaction was continued 1~1.5h, obtains the modified waterborne alkyd tree
Rouge.
The another aspect of the application is related to a kind of modified waterborne alkyd tree prepared using above-mentioned modified water-based alkyd resin
Rouge amino-stoving varnish is mainly made of the component of following mass parts：
Preferably, the graining paste is made of the component of following mass parts：
Preferably, the pigment is one of talcum powder, white carbon black, titanium dioxide, aluminium oxide, iron oxide red, organic indigo plant or appoints
It anticipates the combinations of several arbitrary proportions；Preferably, the dispersing agent is lauryl sodium sulfate, polyacrylamide, guar gum, fat
At least one of acid polyethylene glycol ester.
Preferably, cosolvent can be isobutanol, ethylene glycol monobutyl ether, butyl, propylene glycol first at above-mentioned two
At least one of ether or ethyl alcohol；That is, its ingredient that can be not only used for baking vanish, can be also used for the ingredient of graining paste.
Preferably, the adhesion promoter can be three friend SY-5620, the peaceful DN-630, BYK-4510 of Nanjing product, Tag
At least one of Tech-7200.
Preferably, the amino resins is full methyl-etherified melamine resin or the amino resins is part methyl ether
Change melamine resin and/or high imines melamine resin.Preferably, the catalyst is enclosed type, type semienclosed sulfonic acid
At least one of salt compounds, the defoaming agent are polyether-modified class defoaming agent or organic silicon defoaming agent or acetylenic diols
At least one of defoaming agent, the levelling agent are alkyl-modified organosiloxane class levelling agent, polyether polyester modified organic silicon
At least one of oxygen alkanes levelling agent or polyacrylic levelling agent.
The excellent effect that technical solution of the present invention has：
(1) preparation process of the invention is simple, low for equipment requirements, and general synthesis device, which can meet preparation, to be wanted
It asks.And selecting castor oil is raw material, gets rid of the dependence to petrochemical industry, is played an important role to production cost is reduced.
(2) present invention combines castor oil by castor oil and epoxy resin modification, the modified water-based alkyd resin of preparation
With the performance of epoxy resin, storage stability is good, rate of drying is fast, and hardness, mechanical strength greatly improve after film forming, water-fast resistance to
Hou Xing, impact resistance, acid and alkali-resistance, scrubbing resistance are very excellent.
(3) modified waterborne alkyd amino-stoving varnish prepared by the present invention can be applied to all kinds of H grades and following middle and small motor, electricity
The impregnated insulating paint of device has excellent electric property and mechanical performance；Graining paste, adhesion promoter is such as added, then may be used
The surface bottom baking vanish of metal product is made.Series modified aqueous alkide resin amino-stoving varnish product prepared by the present invention, can be big
Amplitude reduction use cost and VOC emission are a economic and environment-friendly type product.
Specific embodiment
According to the modified water-based alkyd resin of the application, mainly it is made of the component of following mass parts：
Preferably, the polyalcohol be neopentyl glycol, trimethylolpropane, triethylene-glycol, propoxylated bisphenol and
1,4-butanediol, mass parts are respectively 12-18 parts, 8-12 parts, 3-5 parts, 4-8 parts, 3-5 parts；The polyacid and/or acid anhydrides
For M-phthalic acid, terephthalic acid (TPA), phthalic anhydride, cis-butenedioic anhydride and tetrahydrophthalic anhydride, mass parts are respectively 10-14 parts, 0-5 parts, 2-5
Part, 0-5 parts, 15-20 parts；The esterification catalyst is organic tin esterification catalyst, such as Mono-n-butyltin；The asphalt mixtures modified by epoxy resin
Rouge is at least one of E12, E20, E44, E51, preferably E44；The cosolvent is isobutanol, ethylene glycol monobutyl ether, two
At least one of butyl glycol ether, propylene glycol monomethyl ether, preferably ethylene glycol monobutyl ether；The neutralizer is triethylamine, tetrahydro-
Isosorbide-5-Nitrae-oxazines, N, at least one of N- dimethylethanolamine, preferably triethylamine.
Preparation method is as follows：
The present invention is by making modifying agent with castor oil and epoxy resin, first under nitrogen protection, by castor oil with it is polynary
Alcohol, polyacid and/or acid anhydrides and esterification catalyst obtain performed polymer through polycondensation reaction in 160-230 DEG C, are then cooled to 180-
190 DEG C of addition epoxy resin are modified again, when insulation reaction to acid value is lower than 10mg KOH/g, cooling；Add in 150-180 DEG C of grafting
Enter trimellitic anhydride Water-borne modification, insulation reaction to acid value is 45-55mg KOH/g, then is cooled to 100-120 DEG C, and cosolvent is added
With neutralizer to get arrive modified water-based alkyd resin.
More specifically, under nitrogen protection, castor oil and polyalcohol, polyacid and/or acid anhydrides and esterification catalyst are thrown
Enter in reaction kettle, be heated to 160~230 DEG C of 2~5h of reaction, be then cooled to 180~190 DEG C, be added epoxy resin, heat preservation after
1~2h of continuous reaction, until system acid value is lower than 10mg KOH/g, then is cooled to 150~180 DEG C, and trimellitic anhydride is added,
160~180 DEG C of 1~2h of insulation reaction are cooled to 100-120 DEG C until acid value is 45~55mg KOH/g, be added cosolvent, in
And agent, the reaction was continued 1~1.5h, obtain the modified water-based alkyd resin.
Using the above-mentioned modified water-based alkyd resin of the application, it can be used for preparing modified water-soluble amino-stoving varnish, this kind roasting
Paint can be applied to the impregnated insulating paint of all kinds of H grades and middle and small motor below, electric appliance, can also be used as the surface bottom of metal product
Layer baking vanish.Specifically, it is mainly made of the component of following mass parts according to the modified water-based alkyd resin amino-stoving varnish of the application：
Preferably, when the amino resins is full methyl-etherified melamine resin, middle warm type modified water-soluble can be prepared
Alkyd amino-baking coatings.It, can when the amino resins is part methyl-etherified melamine resin and/or high imines melamine resin
Low form modified water-based alkyd resin amino-stoving varnish is prepared.The middle warm type aqueous alkide resin amino-stoving varnish can meet
Solidifying requirements at 130-150 DEG C, the solidification that the low form aqueous alkide resin amino-stoving varnish can meet at 90-120 DEG C are wanted
It asks.
The catalyst can be at least one of enclosed type, type semienclosed Sulfonates compound, it is preferably semiclosed
Type sulfonate catalysts.The defoaming agent can be polyether-modified class defoaming agent or organic silicon defoaming agent or acetylenic diols defoaming
At least one of agent, preferably acetylenic diols defoaming agent.The levelling agent is alkyl-modified organosiloxane class levelling agent, polyethers
At least one of polyester modified organic siloxane class levelling agent or polyacrylic levelling agent, preferred, polyethers polyester modification are organic
Type siloxane levelling agent.
Embodiment 1
(1) castor oil, epoxy modified water-based alkyd resin are prepared：
By weight, 15 parts of castor oil, 12 parts of neopentyl glycol, 12 parts of trimethylolpropane, triethylene-glycol 5 are taken
Part, 8 parts of propoxylated bisphenol, 5 parts of 1,4- butanediol, 10 parts of M-phthalic acid, 5 parts of phthalic anhydride, 15 parts of tetrahydrophthalic anhydride, esterification are urged
0.05 part of addition synthesis reaction vessel of agent, is warming up to 160 DEG C, opens stirring, keeps the temperature 1h.Then it is warming up to 15-20 DEG C/1h speed
230 DEG C, up to the transparent clarification of system, are cooled to 180 DEG C, and 10 parts of E44 are added, and insulation reaction to acid value is lower than 10mg KOH/g, drop
Temperature is added 12 parts of trimellitic anhydride to 160 DEG C, and insulation reaction to acid value is 45-55mg KOH/g, is cooled to 100 DEG C, and second is added
25 parts of glycol monobutyl ether, 7 parts of triethylamine stir evenly to get modified water-based alkyd resin is arrived.
(2) modified water-based alkyd resin made from step (1) synthesize in warm type modified waterborne alkyd amino-stoving varnish：
Take 60 parts of above-mentioned modified water-based alkyd resin, 20 parts of full methyl-etherified melamine resin (for example, it may be
Cymel303), 2 parts of catalyst (for example, it may be Cycat 4040), 0.2 part of defoaming agent (for example, it may be Surfynol
104), 0.1 part of levelling agent (for example, it may be BYK333), paint reaction kettle is added, is warming up to 50 DEG C, starts stirring, react
1h cools down, and terminates.
(3) modified water-based alkyd resin made from step (1) synthesizes low form modified waterborne alkyd amino-stoving varnish：
Take 60 parts of above-mentioned modified water-based alkyd resin, 10 parts of high imines melamine resin (for example, it may be
Cymel385), 20 parts of part methyl-etherified melamine resin (for example, it may be Cymel325), 2 parts of catalyst is (for example, can be with
Cycat4045), 0.2 part of defoaming agent (for example, it may be Surfynol 104), 0.1 part of levelling agent (for example, it may be
BYK333), paint reaction kettle is added, is warming up to 50 DEG C, starts stirring, reacts 1h, cools down, terminates.
(4) modified water-based alkyd resin made from step (1) synthesizes surface of metal product bottom amino-stoving varnish：
Take 62 parts of above-mentioned modified water-based alkyd resin, 16 parts of full methyl-etherified melamine resin (for example, it may be
Cymel303), 18 parts of part methyl-etherified melamine resin (for example, it may be Cymel327), 2 parts of catalyst is (for example, can be with
Cycat4040), 0.2 part of defoaming agent (for example, it may be Surfynol 104), 0.1 part of levelling agent (for example, it may be
BYK354), 35 parts of graining paste, 5 parts of cosolvent (for example, it may be ethyl alcohol), 2 parts of adhesion promoter (for example, it may be BYK-
4510) dispersion grinding pot, is added, is warming up to 50 DEG C, 0.5-1h is stirred under the revolving speed of 800~2000r/min, is then added 38 parts
Deionized water disperses 0.5-1h, cools down, and terminates.
It see the table below 1 using the performance indicator that modified waterborne alkyd amino-stoving varnish made from aforesaid way is applied to insulated paint：
Table 1
It is applied to the property of surface of metal product bottom baking vanish using modified waterborne alkyd amino-stoving varnish made from aforesaid way
Energy index see the table below 2：
Table 2
Embodiment 2
(1) castor oil, epoxy modified water-based alkyd resin are prepared：
By weight, 12 parts of castor oil, 18 parts of neopentyl glycol, 11 parts of trimethylolpropane, triethylene-glycol 4 are taken
Part, 5 parts of propoxylated bisphenol, 3 parts of 1,4- butanediol, 12 parts of M-phthalic acid, 3 parts of phthalic anhydride, 15 parts of tetrahydrophthalic anhydride, E44 14
0.05 part of part, esterification catalyst addition synthesis reaction vessel, are warming up to 160 DEG C, open stirring, keep the temperature 1h.Then with 15-20 DEG C/1h
Speed is warming up to 230 DEG C up to the transparent clarification of system, continues insulation reaction to acid value and is lower than 10mgKOH/g, is cooled to 160 DEG C,
11 parts of trimellitic anhydride are added, insulation reaction to acid value is 45-55mgKOH/g, is cooled to 100 DEG C, and ethylene glycol monobutyl ether is added
28 parts, 6 parts of triethylamine stir evenly to get modified water-based alkyd resin is arrived.
(2) modified water-based alkyd resin made from step (1) synthesize in warm type modified waterborne alkyd amino-stoving varnish：
Take 65 parts of above-mentioned modified water-based alkyd resin, 24 parts of full methyl-etherified melamine resin (for example, it may be
Cymel303), 1 part of catalyst (for example, it may be Cycat 4040), 0.3 part of defoaming agent (for example, it may be Surfynol
104), 0.2 part of levelling agent (for example, it may be BYK333), paint reaction kettle is added, is warming up to 50 DEG C, starts stirring, react
1h cools down, and terminates.
(3) modified water-based alkyd resin made from step (1) synthesizes low form modified waterborne alkyd amino-stoving varnish：
Take 65 parts of above-mentioned modified water-based alkyd resin, 10 parts of high imines melamine resin (for example, it may be
Cymel385), 25 parts of part methyl-etherified melamine resin (for example, it may be cymel325), 1 part of catalyst is (for example, can be with
Cycat4045), 0.3 part of defoaming agent (for example, it may be Surfynol 104), 0.1 part of levelling agent (for example, it may be
BYK333), paint reaction kettle is added, is warming up to 50 DEG C, starts stirring, reacts 1h, cools down, terminates.
(4) modified water-based alkyd resin made from step (1) synthesizes surface of metal product bottom amino-stoving varnish：
Take 68 parts of above-mentioned modified water-based alkyd resin, 15 parts of full methyl-etherified melamine resin (for example, it may be
Cymel303), 20 parts of part methyl-etherified melamine resin (for example, it may be Cymel327), 2 parts of catalyst is (for example, can be with
Cycat4040), 0.5 part of defoaming agent (for example, it may be Surfynol 104), 0.2 part of levelling agent (for example, it may be BYK-
354), 32 parts of graining paste, 8 parts of cosolvent (for example, it may be propylene glycol monomethyl ether), 2 parts of adhesion promoter (for example, it may be
The peaceful DN-630 of Nanjing product), dispersion grinding pot is added, is warming up to 50 DEG C, 0.5-1h is stirred under the revolving speed of 800~2000r/min, so
40 parts of deionized waters are added afterwards and disperse 0.5-1h, cools down, terminates.
It see the table below 3 using the performance indicator that modified waterborne alkyd amino-stoving varnish made from aforesaid way is applied to insulated paint：
Table 3
It is applied to the property of surface of metal product bottom baking vanish using modified waterborne alkyd amino-stoving varnish made from aforesaid way
Energy index see the table below 4：
Table 4
Above-described embodiment is more excellent embodiment of the invention, but embodiments of the present invention are not by above-described embodiment institute
Limitation, others are any not to be violated made change, combination, modification under the principle of the present invention and simplifies, and is regarded as the present invention
Protection scope within.
Claims (12)
1. a kind of modified water-based alkyd resin, which is characterized in that be mainly made of the component of following mass parts：
2. modified water-based alkyd resin according to claim 1, which is characterized in that the polyalcohol is neopentyl glycol, three
Hydroxymethyl-propane, triethylene-glycol, propoxylated bisphenol and 1,4-butanediol, mass parts are respectively 12-18 parts, 8-12
Part, 3-5 parts, 4-8 parts and 3-5 parts.
3. modified water-based alkyd resin according to claim 1, which is characterized in that between the polyacid and/or acid anhydrides are
Phthalic acid, terephthalic acid (TPA), phthalic anhydride, cis-butenedioic anhydride and tetrahydrophthalic anhydride, mass parts are respectively 10-14 parts, 0-5 parts, 2-5 parts, 0-5
Part and 15-20 parts.
4. modified water-based alkyd resin according to any one of claim 1-3, which is characterized in that the cosolvent is different
At least one of butanol, ethylene glycol monobutyl ether, butyl, propylene glycol monomethyl ether；The neutralizer is triethylamine, four
Hydrogen -1,4- oxazines, N, at least one of N- dimethylethanolamine.
5. modified water-based alkyd resin described in any one of -4 according to claim 1, which is characterized in that the esterification catalyst
For organic tin esterification catalyst；The epoxy resin is at least one of E12, E20, E44, E51.
6. modified water-based alkyd resin according to claim 1, which is characterized in that the system of the modified water-based alkyd resin
Preparation Method is：Under nitrogen protection, by castor oil and polyalcohol, polyacid and/or acid anhydrides and esterification catalyst in 160-230 DEG C
Performed polymer is obtained through polycondensation reaction, 180-190 DEG C of addition epoxy resin is then cooled to and is modified again, insulation reaction to acid value is lower than
When 10mg KOH/g, cooling；Trimellitic anhydride Water-borne modification is added in 150-180 DEG C of grafting, insulation reaction to acid value is 45-55mg
KOH/g, then it is cooled to 100-120 DEG C, cosolvent and neutralizer is added to get modified water-based alkyd resin is arrived.
7. modified water-based alkyd resin according to claim 6, which is characterized in that the system of the modified water-based alkyd resin
Preparation Method is：Under nitrogen protection, castor oil and polyalcohol, polyacid and/or acid anhydrides and esterification catalyst are put into reaction kettle
It is interior, 160~230 DEG C of 2~5h of reaction are heated to, are then cooled to 180~190 DEG C, are added epoxy resin, the reaction was continued 1 for heat preservation
~2h until system acid value is lower than 10mg KOH/g, then is cooled to 150~180 DEG C, trimellitic anhydride is added, 160~180
DEG C 1~2h of insulation reaction is cooled to 100-120 DEG C, cosolvent, neutralizer is added until acid value is 45~55mg KOH/g, after
1~1.5h of continuous reaction, obtains the modified water-based alkyd resin.
8. a kind of modified water-based alkyd resin amino-stoving varnish, which is characterized in that be mainly made of the component of following mass parts：
The modified water-based alkyd resin is modified water-based alkyd resin described in any one of -7 according to claim 1.
9. modified water-based alkyd resin amino-stoving varnish according to claim 8, which is characterized in that the amino resins is complete
Methyl-etherified melamine resin or the amino resins are part methyl-etherified melamine resin and/or high imines melamine
Polyimide resin.
10. modified water-based alkyd resin amino-stoving varnish according to claim 8 or claim 9, which is characterized in that the catalyst is
At least one of enclosed type, type semienclosed Sulfonates compound, the defoaming agent are polyether-modified class defoaming agent or organic
At least one of silicon class defoaming agent or acetylenic diols defoaming agent, the levelling agent are alkyl-modified organosiloxane class levelling
At least one of agent, polyether polyester azo polyether polyeste class levelling agent or polyacrylic levelling agent.
11. modified water-based alkyd resin amino-stoving varnish according to claim 8 or claim 9, which is characterized in that the graining paste by
The component of following mass parts is made：
12. modified water-based alkyd resin amino-stoving varnish according to claim 11, which is characterized in that the pigment is talcum
The combination of one of powder, white carbon black, titanium dioxide, aluminium oxide, iron oxide red, organic indigo plant or any several arbitrary proportions；The dispersion
Agent is at least one of lauryl sodium sulfate, polyacrylamide, guar gum, fatty acid polyethylene glycol ester；The cosolvent
For at least one of isobutanol, ethylene glycol monobutyl ether, butyl, propylene glycol monomethyl ether or ethyl alcohol；The adhesive force
Promotor is at least one of three friend SY-5620, the peaceful DN-630, BYK-4510 of Nanjing product, Tag Tech-7200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810771026.4A CN108912318B (en) | 2018-07-13 | 2018-07-13 | Modified waterborne alkyd resin and baking varnish prepared from same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109897497A (en) * | 2019-01-29 | 2019-06-18 | 佛山市三水奥立得化工有限公司 | A kind of amino-stoving varnish and preparation method thereof |
| CN112266675A (en) * | 2020-11-22 | 2021-01-26 | 湖南省金海科技有限公司 | Acrylic acid modified water-based alkyd paint and preparation method thereof |
| CN113825780A (en) * | 2019-04-24 | 2021-12-21 | 阿科玛法国公司 | Reactive polyester resins based on hydroxylated and/or epoxidized fatty acid triglyceride polyols for high solids coatings |
| CN113980559A (en) * | 2021-11-08 | 2022-01-28 | 苏州太湖电工新材料股份有限公司 | Water-based insulating paint and preparation method and application thereof |
| CN115677991A (en) * | 2022-11-04 | 2023-02-03 | 江苏三木化工股份有限公司 | Water-based alkyd resin with high solid content and high flash point baking varnish and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109897497A (en) * | 2019-01-29 | 2019-06-18 | 佛山市三水奥立得化工有限公司 | A kind of amino-stoving varnish and preparation method thereof |
| CN113825780A (en) * | 2019-04-24 | 2021-12-21 | 阿科玛法国公司 | Reactive polyester resins based on hydroxylated and/or epoxidized fatty acid triglyceride polyols for high solids coatings |
| CN112266675A (en) * | 2020-11-22 | 2021-01-26 | 湖南省金海科技有限公司 | Acrylic acid modified water-based alkyd paint and preparation method thereof |
| CN113980559A (en) * | 2021-11-08 | 2022-01-28 | 苏州太湖电工新材料股份有限公司 | Water-based insulating paint and preparation method and application thereof |
| CN113980559B (en) * | 2021-11-08 | 2022-12-27 | 苏州太湖电工新材料股份有限公司 | Water-based insulating paint and preparation method and application thereof |
| CN115677991A (en) * | 2022-11-04 | 2023-02-03 | 江苏三木化工股份有限公司 | Water-based alkyd resin with high solid content and high flash point baking varnish and preparation method thereof |
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