CN109666380B - Water-based amino sand grain baking paint for aluminum products and preparation method thereof - Google Patents
Water-based amino sand grain baking paint for aluminum products and preparation method thereof Download PDFInfo
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- CN109666380B CN109666380B CN201811602869.8A CN201811602869A CN109666380B CN 109666380 B CN109666380 B CN 109666380B CN 201811602869 A CN201811602869 A CN 201811602869A CN 109666380 B CN109666380 B CN 109666380B
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/10—Epoxy resins modified by unsaturated compounds
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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
- C09D5/08—Anti-corrosive paints
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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
- C09D5/28—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for wrinkle, crackle, orange-peel, or similar decorative effects
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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
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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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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/327—Aluminium phosphate
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/328—Phosphates of heavy metals
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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
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Abstract
The invention discloses a water-based amino sand-grained baking paint for aluminum products and a preparation method thereof. The water-based amino sand grain baking paint has excellent adhesive force, wear resistance, corrosion resistance and the like, and the method has simple process and wide raw material sources.
Description
Technical Field
The invention relates to the field of water-based amino paint, in particular to water-based amino sand grain baking paint for aluminum materials and a preparation method thereof, and belongs to the technical field of water-based paint production.
Background
With the development of industry, the industrial market for metal protection and decoration is getting bigger and bigger, and the baking paint as a common industrial paint is widely used in the industries of agricultural machinery, automobile parts, electromechanical equipment, hardware and the like, and the coating film is bright, strong in adhesive force, hard, good in protection and decoration on metal and occupies an important proportion in the paint. In order to meet different requirements of the light industrial market, a series of products are formed from primer, surfacer, surface paint, clear finishing and the like. Wherein the surface paint has the advantages of no light, semi-light and high gloss, and meets the requirements of different adhesive force, impact, elasticity, hardness, wear resistance and other physical properties of the paint film and the requirements of special purposes.
The sand textured paint is a paint with lower luster and better hand feeling, provides diversified coating effects for metal and furniture, but the oily amino sand textured paint has high VOC content, pollutes the environment and damages the physical health of painters. However, as environmental protection requirements of various countries become stricter, people pay more attention to the content of Volatile Organic Compounds (VOC) in the conventional coating. At present, the government of China puts forward industrial policies of protecting the environment, implementing a sustainable development strategy, improving the ecological environment and saving resources. Therefore, the water-based preparation of the oil-based amino sand-textured paint is imperative.
According to investigation, the surface of the aluminum profile has two construction modes, one mode is that the surface of the aluminum profile achieves good protective performance and decoration after two times of powder spraying, wherein due to spraying equipment, production environment and employee responsibility, the conditions of missed spraying, secondary powder spraying and the like frequently occur in a plurality of small-sized equipment for the aluminum profile; the second is to spray the amino sand paint after spraying to achieve the same effect as the powder paint, but the VOC content of the process is higher. The invention better avoids the problems of high energy consumption and spray leakage of powder coating equipment, solves the problem of VOC (volatile organic compounds) emission of the oily sand-textured paint, and can replace the coating for aluminum substrate equipment.
The Chinese patent publication No. 107418337A discloses a water-based sand textured paint and a preparation method thereof, the water-based sand textured paint is prepared by adopting transparent glass sand, barium sulfate and other raw materials, the adhesive force is 1 grade, and the standard requirements of some customers cannot be met; barium sulfate, talcum powder and the like are adopted as extinction fillers in an aqueous system, so that the abrasion resistance of the sand-textured paint is easily reduced, meanwhile, some influences on the adhesive force are caused, and meanwhile, the color paste dispersion efficiency is hindered to a certain extent.
Therefore, in order to meet the market demand, the water-based amino sand textured paint with excellent adhesion, excellent wear resistance and corrosion resistance needs to be developed to solve the existing problems.
Disclosure of Invention
The invention aims to solve the problems and the defects in the prior art, and provides the water-based amino sand grain baking paint and the preparation method thereof.
The purpose of the invention can be realized by the following technical scheme:
the water-based amino sand grain baking paint for the aluminum material takes water-based epoxy modified acrylic resin as matrix resin, sand grain wax as a sand grain auxiliary agent and amino resin as a crosslinking curing agent.
In some embodiments: the baking varnish comprises the following components:
50-70 parts of waterborne epoxy modified acrylic resin, 4-8 parts of sand grain wax, 5-15 parts of amino resin and 10-25 parts of water;
and the baking varnish further comprises one or more of the following components in parts by mass: 0.1-15 parts of an auxiliary agent and 5-15 parts of water-based black filler slurry.
In some more preferred embodiments: the baking varnish comprises the following components in parts by mass:
50-60 parts of waterborne epoxy modified acrylic resin, 4-8 parts of sand grain wax, 5-15 parts of amino resin and 10-25 parts of water;
and the baking varnish further comprises one or more of the following components in parts by mass: 1-3 parts of adhesion promoter, 0.5-1 part of dispersant, 0.2-0.5 part of defoamer, 1-3 parts of cosolvent, 0.5-1 part of pH regulator, 0.2-0.5 part of flatting agent, 0.2-0.5 part of base material wetting agent, 0.5-1 part of rheological additive and 6-13 parts of water-based black filler slurry.
The technical scheme of the invention is as follows: the waterborne epoxy modified acrylic resin is YG-GR202 waterborne epoxy modified acrylic resin; the amino resin is one or more of amino resin 303, amino resin 325, amino resin 327, amino resin MR-603, amino resin 625 and amino resin MR-627.
The technical scheme of the invention is as follows: the dispersant is a hyper dispersant 27000 and a dispersant BYK-192; the defoaming agent is BYK-024 or TEGO-904W; the cosolvent is diethylene glycol monobutyl ether;
the technical scheme of the invention is as follows: the pH regulator is one or more of dimethylethanolamine, triethylamine and AMP-95.
The technical scheme of the invention is as follows: the water-based black filler slurry comprises the following components: 3-5 parts of 27000 hyperdispersant, 5-15 parts of carbon black, 10-20 parts of zinc phosphate, 7-15 parts of aluminum tripolyphosphate and 55-75 parts of deionized water.
The technical scheme of the invention is as follows: the adhesion promoter is one or more of SN-7535 and SN-7592; the sand grain wax is Tmax-4000, and the particle size distribution is one or more of 40, 50, 60 and 80 um; the flatting agent is one or more of BYK-333 and Digao TEGO-450; the base material wetting agent is one or more of BYK-346, BYK-345 and Digao TEGO-KL 245.
The technical scheme of the invention is as follows: the rheological additive is RHEOLATE 299.
A preparation method of the water-based amino sand grain baking paint for the aluminum material comprises the following steps:
s1: preparation of water-based black filler slurry: and sequentially adding the dispersant, the carbon black, the zinc phosphate and the aluminum tripolyphosphate according to the formula ratio into deionized water, stirring at 1500r/min for 15min-30min, and dispersing until no powder agglomerates or lumps exist. Then, transferring the slurry to a sanding device, and grinding the slurry until the fineness of the slurry is less than or equal to 35 mu m.
S2: preparation of the water-based amino sand textured paint: mixing and stirring the waterborne epoxy modified acrylic resin, the amino resin, the sand grain wax, the dispersing agent and the cosolvent at 1500rpm/min for 10-15min, then sequentially adding the waterborne black filler slurry, the pH regulator, the defoamer, the cosolvent, the adhesion promoter, the base material wetting agent, the flatting agent and the deionized water, stirring at 2000rpm/min for 15-20 min, and finally adding the rheological additive to regulate the viscosity to prepare the waterborne amino sand grain baking paint.
The invention has the beneficial effects that:
compared with the prior amino sand textured paint, the invention has the following beneficial effects:
(1) the synthetic method has the advantages of simple process, easy control of the reaction process, mild reaction conditions, good dispersion of the sand grain wax in the resin and excellent wear resistance of the selected sand grain wax.
(2) According to the water-based amino sand grain baking paint provided by the invention, the water-based epoxy modified acrylic resin is selected as the matrix resin, and the adhesion promoter is added, so that on one hand, the adhesion to a base material is improved, and on the other hand, good interlayer adhesion can be ensured on the surface of a defective coating film.
(3) Wide process redundancy, convenient realization of steady production and wide product prospect.
(4) The water-based amino sand-grained paint prepared by the invention has the advantages of excellent adhesive force, high hardness, excellent solvent resistance, simple spraying and use, uniform sand-grained formation, environmental protection and higher safety.
Detailed Description
The present invention is further illustrated by the following examples, but the scope of the invention is not limited thereto. The preparation methods of examples 1-4 and comparative examples 1-4 are as follows (the material ratio is shown in tables 1-1 and 1-2):
s1: preparation of water-based black filler slurry: and sequentially adding the dispersant, the carbon black, the zinc phosphate and the aluminum tripolyphosphate according to the formula ratio into deionized water, stirring at 1500r/min for 15min-30min, and dispersing until no powder agglomerates or lumps exist. Then, transferring the slurry to a sanding device, and grinding the slurry until the fineness of the slurry is less than or equal to 35 mu m.
S2: preparation of the water-based amino sand textured paint: mixing and stirring the waterborne epoxy modified acrylic resin, the amino resin, the sand grain wax, the dispersing agent and the cosolvent at 1500rpm/min for 10-15min, then sequentially adding the waterborne black filler slurry, the pH regulator, the defoamer, the cosolvent, the adhesion promoter, the base material wetting agent, the flatting agent and the deionized water, stirring at 2000rpm/min for 15-20 min, and finally adding the rheological additive to regulate the viscosity to prepare the waterborne amino sand grain baking paint.
TABLE 1-1 EXAMPLES 1 TO 4
TABLE 1-2 COMPARATIVE EXAMPLES 1 TO 4 FOR USE OF THE COMPONENTS
Table 2-1: test report of performance of water-based amino sand grain baking varnish for aluminum material prepared by the invention
Tables 2 to 2: test report of performance of water-based amino sand grain baking varnish for aluminum material prepared by the invention
Comparative example 1
Through the performance table 2-1 and the agent 2-2, it can be seen that the adhesion promoter has obvious influence on the adhesion of the waterborne amino sand textured paint in the embodiment of the invention compared with the comparative example 1 and the embodiment 1.
Comparative example 2
Through the performance tables 2-1 and 2-2, the proportion of the amino resin can be obtained to have important influence on the adhesion, hardness, wear resistance, alcohol scrubbing resistance, salt mist resistance, acid resistance, water resistance and the like of the water-based amino sand textured paint disclosed by the embodiment of the invention.
Comparative example 3
Through the performance tables 2-1 and 2-2, the fact that the selection of the water-based black pulp filler has important influences on the adhesive force, hardness, wear resistance, alcohol scrubbing resistance, salt fog resistance, water resistance and the like of the water-based amino sand textured paint in the embodiment 3 of the invention can be obtained, and in the embodiment 3, aluminum tripolyphosphate and zinc phosphate are selected as the filler to be ground into the pulp, so that the adhesive force, the alcohol scrubbing resistance, the salt fog resistance, the water resistance and the wear resistance of a paint film are obviously improved.
Comparative example 4
Through the performance tables 2-1 and 2-2, the sand grain wax has important influence on the adhesion, hardness, wear resistance, alcohol scrubbing resistance, salt fog resistance and the like of the aqueous amino sand grain paint of the embodiment of the invention, while the comparative example 4 has excessive addition, so that the sand grain forming of the paint film appearance is uneven and the storage performance is reduced.
Claims (6)
1. The utility model provides an aqueous amino sand line baking finish for aluminum product which characterized in that: the baking varnish takes waterborne epoxy modified acrylic resin as matrix resin, sand grain wax as a sand grain auxiliary agent and amino resin as a crosslinking curing agent, and the specific dosage is as follows:
50-60 parts of waterborne epoxy modified acrylic resin, 4-6 parts of sand grain wax, 8-13 parts of amino resin and 10-25 parts of water; and the baking varnish further comprises the following components in parts by mass: 1-3 parts of adhesion promoter, 0.5-1 part of dispersant, 0.2-0.5 part of defoamer, 1-3 parts of cosolvent, 0.5-1 part of pH regulator, 0.2-0.5 part of flatting agent, 0.2-0.5 part of base material wetting agent, 0.5-1 part of rheological additive and 6-13 parts of water-based black filler slurry;
wherein: the water-based black filler slurry comprises the following components: 3-5 parts of 27000 hyperdispersant, 5-15 parts of carbon black, 10-20 parts of zinc phosphate, 7-15 parts of aluminum tripolyphosphate and 55-75 parts of deionized water;
the waterborne epoxy modified acrylic resin is YG-GR202 waterborne epoxy modified acrylic resin; the amino resin is one or more of amino resin 303, amino resin 325, amino resin 327, amino resin MR-603 and amino resin MR-627;
the sand grain wax is Tmax-4000, and the particle size distribution is one or more of 40, 50, 60 and 80 mu m.
2. The aqueous amino sand-grained baking paint for aluminum material as recited in claim 1, characterized in that the dispersant is super dispersant 27000 and dispersant BYK-192; the defoaming agent is BYK-024 or TEGO-904W; the cosolvent is diethylene glycol monobutyl ether.
3. The aqueous amino sand-grained baking paint for aluminum material as recited in claim 1, wherein the pH regulator is one or more of dimethylethanolamine, triethylamine and AMP-95.
4. The water-based amino sand-grain baking paint for aluminum materials as claimed in any one of claims 1 to 3, wherein the adhesion promoter is one or more of SN-7535 and SN-7592; the flatting agent is one or more of BYK-333 and Digao TEGO-450; the base material wetting agent is one or more of BYK-346, BYK-345 and Digao TEGO-KL 245.
5. The water-based amino sand grain baking paint for aluminum materials as claimed in any one of claims 1 to 3, wherein the rheological additive is RHEOLATE 299.
6. A preparation method of the aqueous amino sand grain baking paint for aluminum material as defined in claim 1, which is characterized in that: the method comprises the following steps:
s1: preparation of water-based black filler slurry: sequentially adding the dispersant, carbon black, zinc phosphate and aluminum tripolyphosphate according to the formula ratio into deionized water, stirring at 1500r/min for 15min-30min, and dispersing until no powder agglomerates or lumps exist;
then, transferring the slurry to a sanding device, and grinding the slurry until the fineness of the slurry is less than or equal to 35 mu m;
s2: preparation of the water-based amino sand textured paint: mixing and stirring the waterborne epoxy modified acrylic resin, the amino resin, the sand grain wax, the dispersant and the cosolvent at 1500-1500 r/min for 10-15min, then sequentially adding the waterborne black filler slurry, the pH regulator, the defoamer, the cosolvent, the adhesion promoter, the base material wetting agent, the flatting agent and the deionized water, stirring at 1500-2000 r/min for 15-20 min, and finally adding the rheological additive to adjust the viscosity to prepare the waterborne amino sand grain baking paint.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811602869.8A CN109666380B (en) | 2018-12-26 | 2018-12-26 | Water-based amino sand grain baking paint for aluminum products and preparation method thereof |
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| CN201811602869.8A CN109666380B (en) | 2018-12-26 | 2018-12-26 | Water-based amino sand grain baking paint for aluminum products and preparation method thereof |
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| CN109666380B true CN109666380B (en) | 2021-08-31 |
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| CN113637378B (en) * | 2021-08-01 | 2022-06-28 | 广州励宝新材料科技有限公司 | Preparation method for retreating cured polyurea waste into waterborne sand-textured paint |
| CN115873505A (en) * | 2022-12-27 | 2023-03-31 | 江苏扬瑞新材料有限公司 | Water-based environment-friendly coating and preparation method thereof |
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| CN103146278B (en) * | 2013-03-25 | 2015-01-07 | 扬州大学 | Preparation method of low-temperature curing water-based acrylic amino baking coating |
| CN107267055A (en) * | 2017-05-26 | 2017-10-20 | 吴永芬 | A kind of sand streak paint |
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