CN109337487A - A kind of water soluble acrylic acid amino-stoving varnish - Google Patents
A kind of water soluble acrylic acid amino-stoving varnish Download PDFInfo
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- CN109337487A CN109337487A CN201811110658.2A CN201811110658A CN109337487A CN 109337487 A CN109337487 A CN 109337487A CN 201811110658 A CN201811110658 A CN 201811110658A CN 109337487 A CN109337487 A CN 109337487A
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/062—Copolymers with monomers not covered by C09D133/06
- C09D133/066—Copolymers with monomers not covered by C09D133/06 containing -OH groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
- C09D5/1668—Vinyl-type polymers
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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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
- C09D7/20—Diluents or solvents
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a kind of water soluble acrylic acid amino-stoving varnish, the components including following parts by weight: resin-free color paste；Modified water-soluble hydroxyl acrylic aqueous dispersion；Water soluble amino resin；Ethylene glycol monobutyl ether；Water；Auxiliary agent；Defoaming agent；Deaeration agent；Adhesion promoter；Modified water-soluble hydroxyl acrylic aqueous dispersion be using dodecafluoroheptyl methacrylate and hydroxy acrylic acid esters monomer in organic solvent free crowd, neutralize the fluorine-containing aqueous hydroxyl acrylic aqueous dispersion obtained after emulsification and solvent removal；The adhesion promoter is epoxy acrylic modified carboxylic acid ester.Pass through above-mentioned setting, acrylic acid dispersion is set to become fluorine-containing acrylic acid dispersion using dodecafluoroheptyl methacrylate, significantly improve the water-fast, weather-proof of baking vanish, resistant, low temperature flexibility etc., it is aided with epoxy acrylic modified carboxylic acid ester again as adhesion promoter simultaneously, the further adhesive strength improved with substrate, it makes up mutually, performance is more excellent.
Description
Technical field
The present invention relates to baking vanish manufacture technology field, in particular to a kind of water soluble acrylic acid amino-stoving varnish.
Background technique
In today of rapid industrial development, manufacturer pays close attention to the part rate that how to improve out always, while also considering how
Guarantee the excellent painting effect of workpiece, thus dip painting lead to the problem of very good solution this.Dip-coating be it is a kind of it is easy to operate,
Utilization efficiency of coatings is high and the higher coating application mode of working efficiency, but traditional oiliness dip painting exist this VOC content height,
Many undesirable elements that pollution is big, irritation taste is strong, thus water paint gradually more by market approval and pursue,
So that water paint in the market has obtained unprecedented development space, but since development space is larger, development is more free, so that
Water paint quality in the market is very different, and water paint water resistance in use is generally reflected especially in market survey
Not enough, lead to many undesirable quality problems, hinder the further development of water paint in the market.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of water soluble acrylic acid amino-stoving varnish, tool
There is the good effect of water resistance.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of water soluble acrylic acid amino is roasting
Paint, the component including following parts by weight:
20-45 parts of resin-free color paste；
40-60 parts of modified water-soluble hydroxyl acrylic aqueous dispersion；
5-15 parts of water soluble amino resin；
1-5 parts of ethylene glycol monobutyl ether；
8-15 parts of water；
1-5 parts of auxiliary agent；
0.2-0.5 parts of defoaming agent；
0.2-0.5 parts of deaeration agent；
1-5 parts of adhesion promoter；
The modified water-soluble hydroxyl acrylic aqueous dispersion is using dodecafluoroheptyl methacrylate and hydroxy acrylic acid esters list
Body in organic solvent free crowd, neutralize obtained fluorine-containing aqueous hydroxyl acrylic aqueous dispersion after emulsification and solvent removal；Institute
Stating adhesion promoter is epoxy acrylic modified carboxylic acid ester.
By using above-mentioned technical proposal, hydroxy acrylic acid is modified to obtain by dodecafluoroheptyl methacrylate
Fluorine-containing water-based hydroxyl acrylic acid dispersion has strongest electronegativity, minimum pole since fluorine is the maximum element of electronegativity
Rate, and atomic radius is merely greater than hydrogen, when fluorine atom replaces the H atom on c h bond, formation is that C-F key is extremely short, and bond energy
Up to 460KJ/mol is located on molecular side chain, in film forming procedure containing the full-fluorine group in fluorine modified aqueous acrylate monomers
In, it on the interface that the rich product of perfluoroalkyl meeting is contacted to monomer with air, and is stretched into air, since perfluorinated side chains tend to court
Outside, protection can be formed to main chain and interior molecules, while the radius ratio hydrogen atom of fluorine atom is larger, but than other elements atom
It is small, so C-C main chain can be wrapped up tightly, therefore the water soluble acrylic acid dispersion after fluorine richness has stronger chemistry lazy
Property, to have excellent waterproof, water resistance and good film forming.
Although substantially reducing the surface energy of polymer due to the modifying function of fluorine, and significantly increase baking vanish solution paint film
Water contact angle, water absorption rate reduce, so that water soluble acrylic acid amino-stoving varnish be made to have excellent water resistance, weatherability, resistance to soiling
And low temperature flexibility, but also just because of being increased by fluorine richness bring water contact angle, water absorption rate reduces, the spy of water-tolerant
Property, so that the adhesive force of water soluble acrylic acid baking vanish and substrate is decreased obviously, therefore by ethylene glycol monobutyl ether as excellent molten
Agent and surfactant, play the effect for removing metallic substrate surface dirt grease stain, and the contact for paint film with substrate provides well
Environment on the other hand then be provided with epoxy acrylic modified carboxylic acid ester as adhesion promoter, since epoxy acrylic changes
Property carboxylate contain a large amount of substrate reactive group, can easily with the hydroxyl cross-linking reaction in substrate system, greatly improve
The adhesive force of paint film in system, while also further improving the water resistance of paint film, with fluorine-containing aqueous hydroxy acrylic acid point
Granular media, which cooperates, reaches the combined effect of greatly improvement water resistance.
The further setting of the present invention are as follows: methacrylic acid 12 when prepared by the modified water-soluble hydroxyl acrylic aqueous dispersion
The weight ratio of fluorine heptyl ester and hydroxy acrylic acid esters monomer is 1-10:100.
By using above-mentioned technical proposal, reasonable fluorinated volume is set, be conducive to control enhancing water resistance and reduces attachment
Accomplish certain balance between power, can preferably cooperate with adhesion promoter.
The further setting of the present invention are as follows: the aqueous no resin that the resin-free color paste is titanium dioxide or concentration is 70% is white
Slurry.
By using above-mentioned technical proposal, the coating manufactured with titanium dioxide is bright in luster, and covering power is high, strong coloring force, uses
Amount saves, wide in variety, can play a protective role, and can enhance the mechanical strength and adhesive force of paint film, prevent to the stability of medium
Crackle prevents ultraviolet light and moisture from penetrating, extends the paint film service life.
The further setting of the present invention is the component including following parts by weight: 25-35 parts of resin-free color paste；Modified water
40-50 parts of hydroxyl acrylic aqueous dispersion of property；8-10 parts of water soluble amino resin；3-5 parts of ethylene glycol monobutyl ether；8-10 parts of water；It helps
1-5 parts of agent；0.2-0.5 parts of defoaming agent；0.2-0.5 parts of deaeration agent；1-5 parts of adhesion promoter.
The further setting of the present invention is that the auxiliary agent includes the component of following parts by weight: moistening flatting agent 0.2-0.8
Part；1-3 parts of pH adjusting agent；0.5-1 parts of water-based thickener；0.2-0.5 parts of film forming agent.
By using above-mentioned technical proposal, film forming agent can be such that each component is smoothly uniformly mixed and form a film, and pH is adjusted
Agent is even more indispensable.
The further setting of the present invention is to be made using following steps:
Adhesion promoter, a part of water, a part of pH adjusting agent are added into modified water-soluble hydroxyl acrylic aqueous dispersion by S1,
The first paint vehicle is uniformly mixing to obtain under the mixing speed of 300-600r/min；
S2 mixes the water of remaining weight, defoaming agent, deaeration agent, resin-free color paste, film forming agent, and 500-800r/min's
The second paint vehicle is uniformly mixing to obtain under mixing speed；
First paint vehicle and the second paint vehicle, are mixed and continue to keep the mixing speed stirring of 500-800r/min by S3, and are added simultaneously
Enter water soluble amino resin, ethylene glycol monobutyl ether and moistening flatting agent, obtains third paint vehicle；
S4 the pH adjusting agent of water-based thickener and remaining weight is added into the third paint vehicle, by the viscosity tune of third paint vehicle
Section is adjusted to 7.0-8.0 to 70-80S, pH, obtains water soluble acrylic acid amino-stoving varnish.
The further setting of the present invention are as follows: stirred in S1 and continue 10-15min.
The further setting of the present invention are as follows: stirred in S2 and continue 20-25min.
The further setting of the present invention are as follows: stirred in S3 and continue 10-20min.
The further setting of the present invention are as follows: the weight ratio that the water being added in S1 accounts for whole moisture is 3-4:10, pH adjusting agent
Weight account for whole pH adjusting agents weight ratio be 6-7:10.
By using above-mentioned technical proposal, pH adjusting agent is divided into front and back two parts and is added in production, it can be more accurate
Adjusting, reach 7.0-8.0.
In conclusion the invention has the following advantages: being carried out using modified water-soluble hydroxyl acrylic aqueous dispersion fluorine-containing
It is modified, the water resistance of whole paint film is improved, while being provided with adhesion promoter and compensating for the hypodynamic disadvantage of attachment, simultaneously
It mutually promotes and further reinforces water resistance.
Specific embodiment
Embodiment 1: a kind of production method of modified water-soluble hydroxyl acrylic aqueous dispersion mainly includes the following steps:
The first step, free crowd: by 60 parts of propandiol butyl ethers and 41 parts of tertiary carbonic acid glycidyl esters be added equipped with agitating device,
In the four-hole boiling flask of spherical condensation tube, constant temperature electric heating furnace and Dropping feeder, it is passed through nitrogen, is stirred and heated to 135 DEG C, starts to add
Add 13 parts of acrylic acid, 44 parts of methyl methacrylates, 43 parts of styrene, 18 parts of butyl acrylates, 14 parts of hydroxyethyl methacrylate second
The mixed solution of ester and 0.8 part of initiator, uniformly adding and keeping temperature is 135 DEG C, mixing speed maintenance 360r/min, and
Addition is completed in 3.5h.
40min is kept the temperature again, adds 5.5 parts of acrylic acid, 5 parts of dodecafluoroheptyl methacrylates and 0.15 part of initiator,
Addition is completed in 40min, then is rapidly added 0.1 part of initiator, keeps the temperature 2h, then add 6 parts of hydroxyl telechelic polyesters, and 180 DEG C of reactions are extremely
Acid value is 7.0-8.0, is cooled to 75 DEG C, 6 parts of dimethylethanolamines is added, after mixing evenly；
Second step neutralizes emulsification: adjusting pH value is 7.0, and is slowly added to 300 parts of water and is emulsified；
Solvent removal: third step through filtering and discharging, obtains milky containing fluorine modified aqueous hydroxyl acrylic aqueous dispersion.
Above-mentioned parts by weight are the ratio between the number under unified weight standard, g or kg can be scaled, by needed for actual production
Decision.
Embodiment 2-6: a kind of water soluble acrylic acid amino-stoving varnish, the component for including and its corresponding content are as shown in table 1,
Middle resin-free color paste is the aqueous no white slurry of resin that concentration is 70%, and modified water-soluble hydroxyl acrylic aqueous dispersion is in embodiment 1
What is be prepared contains fluorine modified aqueous hydroxyl acrylic aqueous dispersion, and water soluble amino resin uses high methylol group type amino resins,
Defoaming agent is Moussex 941PL, and deaeration agent is Moussex SF 561, and moistening flatting agent is Modarez PW 336, pH tune
The DMEA solution that agent is 10% is saved, water-based thickener RM-8W, film forming agent is Watery film-fomer.
Wherein, high methylol group type amino resins belongs to the partially alkylated amino resins of aggretion type, mainly contains alkoxy
Methyl and methylol, it contains minimal amount of imino group.Since alkoxy methyl is mainly the group of cross-linking reaction, need higher
Temperature can just crosslink reaction, and the reactivity of methylol is greater than alkoxy methyl, and in high methylol group type amino resins
Methylol group content is more, and curing reaction speed can be improved and reduce baking temperature, while it contains minimal amount of imino group, can
To reduce self-polymeric reaction.
Each component and its correspondence weight (kg) in 1 embodiment 2-6 of table
Embodiment 7: a kind of water soluble acrylic acid amino-stoving varnish, each component is as shown in Example 2, and uses following steps system
It is standby to obtain:
Adhesion promoter, 40% water, 60% pH adjusting agent are added into modified water-soluble hydroxyl acrylic aqueous dispersion by S1,
12min is stirred under the mixing speed of 500r/min obtains the first paint vehicle；
S2 mixes the water of remaining weight, defoaming agent, deaeration agent, resin-free color paste, film forming agent, and in the stirring of 800r/min
22min is stirred under speed obtains the second paint vehicle；
First paint vehicle and the second paint vehicle, are mixed and continue to keep the mixing speed stirring 15min of 800r/min by S3, and are added simultaneously
Enter water soluble amino resin, ethylene glycol monobutyl ether and moistening flatting agent, obtains third paint vehicle；
S4 the pH adjusting agent of water-based thickener and remaining weight is added into the third paint vehicle, by the viscosity tune of third paint vehicle
Section is adjusted to 7.0 to 70-80S, pH, obtains water soluble acrylic acid amino-stoving varnish.
Embodiment 8: a kind of water soluble acrylic acid amino-stoving varnish, the difference with embodiment 7 are that mixing speed is in S1
380r/min, when a length of 15min.
Embodiment 9: a kind of water soluble acrylic acid amino-stoving varnish, the difference with embodiment 7 are that mixing speed is in S2
600r/min, when a length of 25min.
Embodiment 10: a kind of water soluble acrylic acid amino-stoving varnish, the difference with embodiment 7 are that mixing speed is in S3
600r/min, when a length of 20min.
Embodiment 11: a kind of water soluble acrylic acid amino-stoving varnish, the difference from example 2 is that, resin-free color paste uses titanium
White powder.
Embodiment 12: a kind of production method of modified water-soluble hydroxyl acrylic aqueous dispersion, the difference from embodiment 1 is that adding
The dodecafluoroheptyl methacrylate added is 8 parts.
Comparative example 1-6: a kind of acrylic-amino baking vanish, the difference from example 2 is that, the component and its correspondence contained
Content it is as shown in table 2.
Each component and its corresponding content (kg) in 2 comparative example 1-6 of table
Wherein, resin-free color paste is the aqueous no white slurry of resin that concentration is 70%, modified water-soluble hydroxyl acrylic aqueous dispersion
To be prepared in embodiment 1 containing fluorine modified aqueous hydroxyl acrylic aqueous dispersion, water soluble amino resin uses high methylol group
The amino resins of type, defoaming agent are Moussex 941PL, and deaeration agent is Moussex SF 561, moistening flatting agent Modarez
PW 336, the DMEA solution that pH adjusting agent is 10%, water-based thickener RM-8W, film forming agent is Watery film-fomer.
Characterization test
Following each embodiment and comparative example is chosen as test component, is prepared under identical solidification temperature and curing time
Finished product acrylic-amino baking vanish, and following every test is carried out respectively, logging is entered in table 3, wherein adhesive force is surveyed
Cross-hatching is used, water resistance is 36h test class.
Table 3 characterizes Experiment Data Records table
| Component | Pencil hardness | Adhesive force | Water resistance | Boiling water resistance | Glossiness/% | Alkali resistance |
| Embodiment 2 | 4H | 0 grade | It is without exception | It is without exception | 46 | It is without exception |
| Embodiment 6 | 5H | 0 grade | It is without exception | It is without exception | 44 | It is without exception |
| Embodiment 8 | 4H | 0 grade | It is without exception | It is without exception | 45 | It is without exception |
| Embodiment 12 | 4H | 0 grade | It is without exception | It is without exception | 46 | It is without exception |
| Comparative example 1 | 3H | 1 grade | A large amount of blisterings | A large amount of blisterings | 42 | A small amount of blistering |
| Comparative example 2 | 3H | 1 grade | A large amount of blisterings | A large amount of blisterings | 41 | A small amount of blistering |
| Comparative example 3 | 3H | 0 grade | A large amount of blisterings | A large amount of blisterings | 42 | It is without exception |
| Comparative example 4 | 3H | 2 grades | A small amount of blistering | A large amount of blisterings | 38 | A small amount of blistering |
| Comparative example 5 | 2H | 2 grades | A small amount of blistering | A large amount of blisterings | 39 | A small amount of blistering |
| Comparative example 6 | 2H | 2 grades | A small amount of blistering | A large amount of blisterings | 39 | A small amount of blistering |
Claims (10)
1. a kind of water soluble acrylic acid amino-stoving varnish, which is characterized in that the component including following parts by weight:
20-45 parts of resin-free color paste；
40-60 parts of modified water-soluble hydroxyl acrylic aqueous dispersion；
5-15 parts of water soluble amino resin；
1-5 parts of ethylene glycol monobutyl ether；
8-15 parts of water；
1-5 parts of auxiliary agent；
0.2-0.5 parts of defoaming agent；
0.2-0.5 parts of deaeration agent；
1-5 parts of adhesion promoter；
The modified water-soluble hydroxyl acrylic aqueous dispersion is using dodecafluoroheptyl methacrylate and hydroxy acrylic acid esters list
Body in organic solvent free crowd, neutralize obtained fluorine-containing aqueous hydroxyl acrylic aqueous dispersion after emulsification and solvent removal；Institute
Stating adhesion promoter is epoxy acrylic modified carboxylic acid ester.
2. a kind of water soluble acrylic acid amino-stoving varnish according to claim 1, it is characterised in that: the modified water-soluble hydroxyl third
The weight ratio of dodecafluoroheptyl methacrylate and hydroxy acrylic acid esters monomer is 1-10:100 when prepared by olefin(e) acid dispersion.
3. a kind of water soluble acrylic acid amino-stoving varnish according to claim 2, it is characterised in that: the resin-free color paste is titanium
The aqueous no white slurry of resin that white powder or concentration are 70%.
4. a kind of water soluble acrylic acid amino-stoving varnish according to claim 1, which is characterized in that including following parts by weight
Component:
25-35 parts of resin-free color paste；
40-50 parts of modified water-soluble hydroxyl acrylic aqueous dispersion；
8-10 parts of water soluble amino resin；
3-5 parts of ethylene glycol monobutyl ether；
8-10 parts of water；
1-5 parts of auxiliary agent；
0.2-0.5 parts of defoaming agent；
0.2-0.5 parts of deaeration agent；
1-5 parts of adhesion promoter.
5. a kind of water soluble acrylic acid amino-stoving varnish according to claim 4, which is characterized in that the auxiliary agent includes following weight
Measure the component of number:
0.2-0.8 parts of moistening flatting agent；
1-3 parts of pH adjusting agent；
0.5-1 parts of water-based thickener;
0.2-0.5 parts of film forming agent.
6. a kind of water soluble acrylic acid amino-stoving varnish according to claim 5, which is characterized in that be made using following steps:
Adhesion promoter, a part of water, a part of pH adjusting agent are added into modified water-soluble hydroxyl acrylic aqueous dispersion by S1,
The first paint vehicle is uniformly mixing to obtain under the mixing speed of 300-600r/min；
S2 mixes the water of remaining weight, defoaming agent, deaeration agent, resin-free color paste, film forming agent, and 500-800r/min's
The second paint vehicle is uniformly mixing to obtain under mixing speed；
First paint vehicle and the second paint vehicle, are mixed and continue to keep the mixing speed stirring of 500-800r/min by S3, and are added simultaneously
Enter water soluble amino resin, ethylene glycol monobutyl ether and moistening flatting agent, obtains third paint vehicle；
S4 the pH adjusting agent of water-based thickener and remaining weight is added into the third paint vehicle, by the viscosity tune of third paint vehicle
Section is adjusted to 7.0-8.0 to 70-80S, pH, obtains water soluble acrylic acid amino-stoving varnish.
7. a kind of water soluble acrylic acid amino-stoving varnish according to claim 6, it is characterised in that: stirred in S1 and continue 10-
15min。
8. a kind of water soluble acrylic acid amino-stoving varnish according to claim 7, it is characterised in that: stirred in S2 and continue 20-
25min。
9. a kind of water soluble acrylic acid amino-stoving varnish according to claim 8, it is characterised in that: stirred in S3 and continue 10-
20min。
10. a kind of water soluble acrylic acid amino-stoving varnish according to claim 9, it is characterised in that: the water being added in S1 accounts for entirely
The weight ratio of portion's moisture is 3-4:10, and the weight ratio that the weight of pH adjusting agent accounts for whole pH adjusting agents is 6-7:10.
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| CN201811110658.2A CN109337487B (en) | 2018-09-21 | 2018-09-21 | Water-based acrylic amino baking paint |
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| CN201811110658.2A CN109337487B (en) | 2018-09-21 | 2018-09-21 | Water-based acrylic amino baking paint |
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| CN110982371A (en) * | 2019-12-18 | 2020-04-10 | 万华化学集团股份有限公司 | Environment-friendly water-based high-gloss high-fullness high-temperature baking varnish |
| CN111117444A (en) * | 2019-12-30 | 2020-05-08 | 广东绿色大地化工有限公司 | Water-based polyester-acrylic amino resin hybrid baking paint and preparation method thereof |
| CN111363130A (en) * | 2020-04-29 | 2020-07-03 | 广东邦弗特新材料有限公司 | Epoxy acrylic fluorine-containing resin modified saturated polyester resin and preparation method thereof |
| CN111393622A (en) * | 2020-04-29 | 2020-07-10 | 广东邦弗特新材料有限公司 | Saturated polyester resin modified by hydroxyl acrylic fluorine-containing resin and preparation method thereof |
| CN111499851A (en) * | 2020-04-29 | 2020-08-07 | 广东邦弗特新材料有限公司 | Carboxyl acrylic fluorine-containing resin modified saturated polyester resin and preparation method thereof |
| CN113372511A (en) * | 2021-06-30 | 2021-09-10 | 湖南松井新材料股份有限公司 | Acrylic resin, water-based amino baking paint, and preparation method and application thereof |
| CN113621290A (en) * | 2021-09-02 | 2021-11-09 | 四川泰诺斯新材料科技有限公司 | Low-VOC high-gloss water-based steel drum outer wall coating and preparation method thereof |
| CN114292551A (en) * | 2021-12-13 | 2022-04-08 | 同享（苏州）电子材料科技股份有限公司 | High-gloss tin-free coating of black bus bar and preparation method of black bus bar |
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| CN111499851A (en) * | 2020-04-29 | 2020-08-07 | 广东邦弗特新材料有限公司 | Carboxyl acrylic fluorine-containing resin modified saturated polyester resin and preparation method thereof |
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| CN114292551A (en) * | 2021-12-13 | 2022-04-08 | 同享（苏州）电子材料科技股份有限公司 | High-gloss tin-free coating of black bus bar and preparation method of black bus bar |
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