CN113956731A - Primer for aluminum plate curtain wall, preparation method of primer, composite paint for aluminum plate curtain wall and preparation method of aluminum plate curtain wall - Google Patents
Primer for aluminum plate curtain wall, preparation method of primer, composite paint for aluminum plate curtain wall and preparation method of aluminum plate curtain wall Download PDFInfo
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- CN113956731A CN113956731A CN202111385741.2A CN202111385741A CN113956731A CN 113956731 A CN113956731 A CN 113956731A CN 202111385741 A CN202111385741 A CN 202111385741A CN 113956731 A CN113956731 A CN 113956731A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/542—No clear coat specified the two layers being cured or baked together
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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
- C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- 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
- C09D5/002—Priming 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
- C09D5/08—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
- 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
- C09D7/61—Additives non-macromolecular inorganic
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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
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2502/00—Acrylic polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2506/00—Halogenated polymers
- B05D2506/10—Fluorinated polymers
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention belongs to the technical field of water-based industrial coatings, and provides a primer for an aluminum plate curtain wall and a preparation method thereof, a composite paint for the aluminum plate curtain wall and a preparation method of the aluminum plate curtain wall. The primer for the aluminum plate curtain wall disclosed by the invention uses the water-based hydroxyl acrylic emulsion HD-8102 combined with the FB12 aliphatic isocyanate water-based closed curing agent, so that the primer can quickly form a net-shaped cross-linked film on the surface of the substrate, the fluorocarbon finish paint sprayed on the primer cannot migrate, and a wet-wet process is helpful for promoting the adhesive force between the primer and the finish paint. Meanwhile, the use of the King 3525 acid drier greatly shortens the surface drying and drying time of the primer. In addition, the FB12 aliphatic isocyanate water-based blocked curing agent, the Zhanxin 303 amino resin, the cosolvent DPM, the 105A thickener and the 53L thickener greatly shorten the leveling time of the primer, so that the primer can be coated on the surface after being leveled, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of water-based industrial coatings, in particular to a primer for an aluminum plate curtain wall and a preparation method thereof, a composite paint for the aluminum plate curtain wall and a preparation method of the aluminum plate curtain wall.
Background
With the rapid development and the continuous improvement of living standard of cities, people have higher and higher requirements on the exterior of buildings. The earliest materials for exterior finishing of buildings were lime, ceramic tiles, mosaic and natural stone; the ceramic tiles and the mosaics often fall off and injure people due to expansion caused by heat and contraction caused by cold, and the lives of the people are endangered; the natural stone has the conditions of falling and smashing people, high price, non-regeneration, resource waste in mining and serious environmental pollution. Along with the promotion of environmental protection consciousness and safety meaning of people, ceramic tiles, mosaics and natural stones are gradually replaced by stone-like paint materials such as paint, real stone paint and the like.
Although the coating and the real stone paint are environment-friendly, the coating and the real stone paint are exposed in the air during construction, and the air pollution is serious. In addition, the outdoor construction period of the coating is not controlled, and the quality does not meet the standard. Therefore, aluminum curtain walls for exterior wall decoration have appeared in the market. Currently, aluminum curtain walls are obtained by sequentially coating a primer and a finish on an aluminum sheet. When the aluminum plate curtain wall is prepared, if the primer is not leveled or the surface drying time is not enough, the fluorocarbon finish paint is sprayed, so that the primer can directly migrate to the fluorocarbon finish paint, and the coating effect of the aluminum plate curtain wall is influenced; therefore, when the aluminum plate curtain wall is prepared, after the primer is coated, the leveling is carried out for 10-15 min or the baking is carried out for 5-6 min, and then the fluorocarbon finish paint is sprayed, so that the aluminum plate curtain wall is low in working efficiency and high in cost.
Disclosure of Invention
In view of the above, the present invention is directed to a primer for an aluminum panel curtain wall, a method for preparing the primer, a composite paint for an aluminum panel curtain wall, and a method for preparing an aluminum panel curtain wall. The primer for the aluminum plate curtain wall is coated on an aluminum plate and then directly coated with finish paint, so that excellent surface appearance of the aluminum plate curtain wall can be obtained.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a primer for an aluminum plate curtain wall, which comprises the following components in percentage by mass:
aqueous hydroxyl acrylic emulsion HD-810250%, neutralizer DMEA 0.3%, deionized water 8.4%, cosolvent PNB 2.0%, cosolvent DPM 5.0%, dispersant 760W 0.6%, 024 defoamer 0.3%, 346 wetting agent 0.3%, 902 defoamer 0.2%, 4100 wetting agent 0.2%, titanium pigment 706 22%, King 3525 acid drier 0.3%, 105A thickener 0.20%, 53L thickener 0.2%, FB12 aliphatic isocyanate aqueous closed type curing agent 3.0%, and Zhanxin 303 amino resin 7.0%;
the solid content of the aqueous hydroxy acrylic emulsion HD-8102 is 43 wt%;
the hydroxyl value of the water-based hydroxyl acrylic emulsion HD-8102 is 85 mg/mol.
The invention also provides a preparation method of the primer for the aluminum plate curtain wall, which comprises the following steps:
mixing and grinding aqueous hydroxyl acrylic emulsion HD-8102, a neutralizing agent, deionized water, a cosolvent PNB, a part of cosolvent DPM, a dispersing agent 760W, a 024 defoaming agent, a 346 wetting agent, a 902 defoaming agent, a 4100 wetting agent and 706 titanium dioxide to obtain emulsion pre-pulping;
mixing and grinding FB12 aliphatic isocyanate waterborne closed curing agent, Zhanxin 303 amino resin and the balance of cosolvent DPM to obtain a curing agent mixture;
and mixing the emulsion pre-pulping and the curing agent mixture, and then sequentially adding a King 3525 acid drier, a 105A thickener and a 53L thickener to obtain the primer for the aluminum plate curtain wall.
The invention also provides a composite paint for the aluminum plate curtain wall, which comprises the primer for the aluminum plate curtain wall and the amino fluorocarbon finish paint which are independently packaged;
the primer for the aluminum plate curtain wall is the primer for the aluminum plate curtain wall in the technical scheme or the primer for the aluminum plate curtain wall obtained by the preparation method in the technical scheme;
the amino fluorocarbon finish paint comprises the following components in percentage by mass:
55-65% of water-based fluorocarbon emulsion resin, 0.1-0.3% of odor-free neutralizer, 3.0-10.0% of water-based amino resin, 1.0-3.0% of ethylene glycol tert-butyl ether, 1.0-3.0% of isopropanol, 0.5-0.7% of dispersing agent, 0.1-0.3% of wetting agent, 0.1-0.5% of defoaming agent, 0.2-0.5% of adhesion promoter, 0.1-0.5% of light stabilizer, 8-20% of nano zirconium oxide, 1-5% of leveling agent, 0.1-0.5% of ultraviolet absorbent, 1.0-3.0% of film-forming additive, 0.5-1.0% of thickening agent and the balance of water.
Preferably, the aqueous fluorocarbon emulsion resin comprises aqueous fluorocarbon emulsion resin 827 and/or aqueous fluorocarbon emulsion resin M15A.
Preferably, the aqueous amino resin comprises aqueous amino resin 303.
Preferably, the adhesion promoter comprises adhesion promoter 8877.
Preferably, the preparation method of the amino fluorocarbon finish paint comprises the following steps:
sequentially mixing the aqueous fluorocarbon emulsion resin with a smell-purifying neutralizer, ethylene glycol tertiary ether, isopropanol, a dispersing agent, a wetting agent, a defoaming agent, a film-forming aid and a light stabilizer to obtain a primary mixed material;
mixing the primary mixed material with titanium dioxide, nano zirconia and water-based amino resin in sequence to obtain a middle mixed material;
and mixing the mixed material with a flatting agent, an adhesion promoter, an ultraviolet absorbent, a thickening agent and water in sequence to obtain the amino fluorocarbon coating.
The invention also provides a preparation method of the aluminum plate curtain wall, which comprises the following steps:
pretreating an aluminum plate to obtain a pretreated aluminum plate;
coating a primer for an aluminum plate curtain wall on the pre-treated aluminum plate, coating an amino fluorocarbon finish on the next step, and baking to obtain the aluminum plate curtain wall;
the primer for the aluminum plate curtain wall and the amino fluorocarbon finish paint are respectively the primer for the aluminum plate curtain wall and the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall.
Preferably, the coating thickness of the primer for the aluminum plate curtain wall is 14-16 mu m, and the coating thickness of the amino fluorocarbon finish paint is 25-30 mu m.
Preferably, the baking temperature is 180-200 ℃, and the baking time is 5-7 min.
The invention provides a primer for an aluminum plate curtain wall, which comprises the following components in percentage by mass: aqueous hydroxyl acrylic emulsion HD-810250%, neutralizer DMEA 0.3%, deionized water 8.4%, cosolvent PNB 2.0%, cosolvent DPM 5.0%, dispersant 760W 0.6%, 024 defoamer 0.3%, 346 wetting agent 0.3%, 902 defoamer 0.2%, 4100 wetting agent 0.2%, titanium pigment 706 22%, King 3525 acid drier 0.3%, 105A thickener 0.20%, 53L thickener 0.2%, FB12 aliphatic isocyanate aqueous closed type curing agent 3.0%, and Zhanxin 303 amino resin 7.0%; the solid content of the aqueous hydroxy acrylic emulsion HD-8102 is 43 wt%; the hydroxyl value of the hydroxyl acrylic emulsion HD-8102 is 85 mg/mol. According to the invention, the waterborne hydroxyl acrylic emulsion HD-8102 is combined with the FB12 aliphatic isocyanate waterborne closed curing agent, so that the primer can quickly form a net-shaped cross-linked film on the surface of the substrate, the fluorocarbon finish paint does not migrate during spraying, and the wet-to-wet process is helpful for promoting the adhesive force between the primer and the finish paint. Meanwhile, the use of the King 3525 acid drier greatly shortens the surface drying and drying time of the primer. In addition, the FB12 aliphatic isocyanate water-based blocked curing agent, the Zhanxin 303 amino resin, the cosolvent DPM, the 105A thickener and the 53L thickener greatly shorten the leveling time of the primer, so that the primer can be coated on the surface after being leveled, and the working efficiency is improved.
The invention provides a composite paint for an aluminum plate curtain wall, which comprises a primer and an amino fluorocarbon finish, wherein the primer and the amino fluorocarbon finish are independently packaged; the primer for the aluminum plate curtain wall is the primer for the aluminum plate curtain wall in the technical scheme or the primer for the aluminum plate curtain wall obtained by the preparation method in the technical scheme; the amino fluorocarbon finish paint comprises the following components in percentage by mass: 55-65% of water-based fluorocarbon emulsion resin, 0.1-0.3% of odor-free neutralizer, 3.0-10.0% of water-based amino resin, 1.0-3.0% of ethylene glycol tert-butyl ether, 1.0-3.0% of isopropanol, 0.5-0.7% of dispersing agent, 0.1-0.3% of wetting agent, 0.1-0.5% of defoaming agent, 0.2-0.5% of adhesion promoter, 0.1-0.5% of light stabilizer, 8-20% of nano zirconium oxide, 1-5% of leveling agent, 0.1-0.5% of ultraviolet absorbent, 1.0-3.0% of film-forming additive, 0.5-1.0% of thickening agent and the balance of water. The primer for the aluminum plate curtain wall or the primer for the aluminum plate curtain wall obtained by the preparation method in the technical scheme is used in the composite paint for the aluminum plate curtain wall, so that when the curing material is used, the primer is directly coated with finish paint after the primer is coated, the construction time of the composite paint is saved, and the manufacturing efficiency of the aluminum plate curtain wall is improved. Meanwhile, the used amino fluorocarbon finish paint has the advantages of super weather resistance, excellent salt mist resistance, no color change, and excellent stain resistance and chemical resistance.
Detailed Description
The invention provides a primer for an aluminum plate curtain wall, which comprises the following components in percentage by mass:
aqueous hydroxyl acrylic emulsion HD-810250%, neutralizer DMEA 0.3%, deionized water 8.4%, cosolvent PNB 2.0%, cosolvent DPM 5.0%, dispersant 760W 0.6%, 024 defoamer 0.3%, 346 wetting agent 0.3%, 902 defoamer 0.2%, 4100 wetting agent 0.2%, titanium pigment 706 22%, King 3525 acid drier 0.3%, 105A thickener 0.20%, 53L thickener 0.2%, FB12 aliphatic isocyanate aqueous closed type curing agent 3.0%, and Zhanxin 303 amino resin 7.0%;
the solid content of the aqueous hydroxy acrylic emulsion HD-8102 is 43 wt%;
the hydroxyl value of the hydroxyl acrylic emulsion HD-8102 is 85 mg/mol.
In the present invention, the starting materials used in the present invention are preferably commercially available products unless otherwise specified.
The primer for the aluminum plate curtain wall comprises 50 mass percent of water-based hydroxyl acrylic emulsion HD-8102. In the invention, the solid content of the aqueous hydroxy acrylic emulsion HD-8102 is 43 wt%; the hydroxyl value of the hydroxyl acrylic emulsion HD-8102 is 85 mg/mol.
Based on the mass percentage of the aqueous hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 0.3 mass percent of neutralizing agent DMEA.
Based on the mass percentage of the aqueous hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 8.4% of deionized water.
Based on the mass percentage of the aqueous hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 2.0 mass percent of cosolvent PNB.
Based on the mass percentage of the aqueous hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 5.0% of cosolvent DPM.
Based on the mass percentage of the aqueous hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 0.6% of dispersant 760W.
Based on the mass percent of the water-based hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 024 defoaming agent with the mass percent of 0.3%.
Based on the mass percentage of the aqueous hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 0.3 mass percent of 346 wetting agent.
Based on the mass percentage of the aqueous hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 0.2 mass percent of 902 antifoaming agent.
Based on the mass percentage of the aqueous hydroxy acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 0.2% of 4100 wetting agent.
Based on the mass percentage of the aqueous hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 706 titanium dioxide with the mass percentage of 22%.
Based on the mass percentage of the aqueous hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 0.3 mass% of King 3525 acid drier.
Based on the mass percentage of the aqueous hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 0.20 mass% of 105A thickening agent.
Based on the mass percentage of the aqueous hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 0.2% of 53L thickening agent.
Based on the mass percentage of the aqueous hydroxyl acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 3.0% of FB12 aliphatic isocyanate aqueous closed curing agent.
Based on the mass percentage of the water-based hydroxy acrylic emulsion HD-8102, the primer for the aluminum plate curtain wall provided by the invention comprises 7.0 mass% of the brand new 303 amino resin.
The invention also provides a preparation method of the primer for the aluminum plate curtain wall, which comprises the following steps:
mixing and grinding aqueous hydroxyl acrylic emulsion HD-8102, a neutralizing agent, deionized water, a cosolvent PNB, a part of cosolvent DPM, a dispersing agent 760W, a 024 defoaming agent, a 346 wetting agent, a 902 defoaming agent, a 4100 wetting agent and 706 titanium dioxide to obtain emulsion pre-pulping;
mixing FB12 aliphatic isocyanate waterborne closed curing agent, Zhanxin 303 amino resin and the balance of cosolvent DPM to obtain a curing agent mixture;
and mixing the emulsion pre-pulping and the curing agent mixture, and then sequentially adding a King 3525 acid drier, a 105A thickener and a 53L thickener to obtain the primer for the aluminum plate curtain wall.
The invention mixes and grinds water-based hydroxyl acrylic emulsion HD-8102, neutralizer, deionized water, cosolvent PNB, partial cosolvent DPM 2.0%, dispersant 760W, 024 defoamer, 346 wetting agent, 902 defoamer, 4100 wetting agent and 706 titanium dioxide to obtain emulsion pre-pulping.
In the invention, the mixing mode of the aqueous hydroxyl acrylic emulsion HD-8102, a neutralizing agent, deionized water, a cosolvent PNB, a part of cosolvent DPM 2.0%, a dispersant 760W, a 024 defoamer, a 346 wetting agent, a 902 defoamer, a 4100 wetting agent and 706 titanium dioxide is preferably as follows: under the condition of stirring, sequentially adding aqueous hydroxy acrylic emulsion HD-8102, a neutralizing agent, deionized water, a cosolvent PNB, 2.0% of a part of cosolvent DPM, 760W of a dispersing agent, 024 defoaming agent, 346 wetting agent, 902 defoaming agent, 4100 wetting agent and 706 titanium dioxide. In the present invention, the rotation speed of the stirring is preferably 600 rpm.
In the present invention, the mixing is preferably performed under stirring conditions, the rotation speed of the stirring is preferably 1200rpm, and the time is preferably 20 min.
In the invention, the grinding temperature is preferably 40-50 ℃; the time for the grinding is not particularly limited in the present invention as long as the fineness of the resulting emulsion pre-pulping is preferably 10 μm.
According to the invention, FB12 aliphatic isocyanate water-based blocked curing agent, Zhanxin 303 amino resin and the balance of cosolvent DPM are mixed and ground to obtain a curing agent mixture.
The invention is not particularly limited to the form in which the FB12 aliphatic isocyanate water-based blocked curing agent, the Zhanxin 303 amino resin, and the remaining cosolvent DPM are mixed, provided that the FB12 aliphatic isocyanate water-based blocked curing agent, the Zhanxin 303 amino resin, and the remaining cosolvent DPM can be uniformly mixed.
In the invention, the mass ratio of the partial cosolvent DPM to the residual auxiliary agent DPM is 2: 3.
after the emulsion pre-pulping and curing agent mixture is obtained, the emulsion pre-pulping and curing agent mixture is mixed, and then the King 3525 acid drier, the 105A thickener and the 53L thickener are sequentially added to obtain the primer for the aluminum plate curtain wall.
In the invention, the rotation speed of mixing the emulsion pre-pulping and the curing agent mixture is preferably 800rpm, and the time is preferably 20 min.
After the King 3525 acid drier is added in the invention, the mixture is stirred for 5min at 900rpm, and then 105A thickener and 53L thickener are added.
The invention also provides a composite paint for the aluminum plate curtain wall, which comprises the primer for the aluminum plate curtain wall and the amino fluorocarbon finish paint which are independently packaged;
the primer for the aluminum plate curtain wall is the primer for the aluminum plate curtain wall in the technical scheme or the primer for the aluminum plate curtain wall obtained by the preparation method in the technical scheme;
the amino fluorocarbon finish paint comprises the following components in percentage by mass:
55-65% of water-based fluorocarbon emulsion resin, 0.1-0.3% of odor-free neutralizer, 3.0-10.0% of water-based amino resin, 1.0-3.0% of ethylene glycol tert-butyl ether, 1.0-3.0% of isopropanol, 0.5-0.7% of dispersing agent, 0.1-0.3% of wetting agent, 0.1-0.5% of defoaming agent, 0.2-0.5% of adhesion promoter, 0.1-0.5% of light stabilizer, 8-20% of nano zirconium oxide, 1-5% of leveling agent, 0.1-0.5% of ultraviolet absorbent, 1.0-3.0% of film-forming additive, 0.5-1.0% of thickening agent and the balance of water.
The amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall comprises 55-65% of water-based fluorocarbon emulsion resin by mass, preferably 56-63%, further preferably 57-62%, and more preferably 58-60%. In the present invention, the aqueous fluorocarbon emulsion resin preferably comprises aqueous fluorocarbon emulsion resin 827 and/or aqueous fluorocarbon emulsion resin M15A; when the aqueous fluorocarbon emulsion resin is preferably an emulsion resin mixture of aqueous fluorocarbon emulsion resin 827 and aqueous fluorocarbon emulsion resin M15A; the mass ratio of the aqueous fluorocarbon emulsion resin 827 to the aqueous fluorocarbon emulsion resin M15A in the emulsion resin mixture is preferably 30.6: 25.4. in the present invention, the aqueous fluorocarbon emulsion resin functions as a film-forming substance.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises 0.1-0.3% of a net odor neutralizer, preferably 0.15-0.25%, and more preferably 0.2%. In the present invention, the odor neutralizer is preferably an odor neutralizer AMP-95. In the present invention, the odor-eliminating neutralizer functions to neutralize the resin and adjust the pH.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises 3.0-10.0% of aqueous amino resin, preferably 4.0-9.0%, more preferably 5.0-8.0%, and even more preferably 6.0-7.0%. In the present invention, the aqueous amino resin is preferably an aqueous amino resin 303. In the present invention, the aqueous amino resin is catalytically crosslinked at high temperature.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises 1.0-3.0% of ethylene glycol tert-butyl ether, preferably 1.5-2.5%, and more preferably 2.0%. In the present invention, the ethylene glycol tertiary butyl ether functions as a synergistic film.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises 1.0-3.0% of isopropanol by mass percentage, preferably 1.5-2.5%, and more preferably 2.0%. In the present invention, the isopropyl alcohol functions as a film-forming agent.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises 0.5-0.7% of dispersant by mass percentage, preferably 0.55-0.65%, and further preferably 0.60%. In the present invention, the dispersant is preferably a dispersant 190 and/or a dispersant 181.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises a wetting agent with the mass percentage of 0.1-0.3%, preferably 0.15-0.25%, and further preferably 0.20%. In the present invention, the wetting agent is preferably a wetting agent 4100.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises an antifoaming agent with the mass percentage of 0.1-0.5%, preferably 0.2-0.4%, and more preferably 0.3%. In the present invention, the antifoaming agent preferably comprises antifoaming agent 902 and/or digao 902w antifoaming agent.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises 0.2-0.5% of adhesion promoter, preferably 0.25-0.45%, and more preferably 0.3-0.4%. In the present invention, the adhesion promoter preferably includes adhesion promoter 8877.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises a light stabilizer with the mass percentage of 0.1-0.5%, preferably 0.2-0.4%, and more preferably 0.3%. In the present invention, the light stabilizer preferably comprises the light stabilizer 010WB and/or the light stabilizer 5400 WB. In the present invention, the light stabilizer functions to shield ultraviolet rays.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises 8-20% of titanium dioxide, preferably 10-18%, and further preferably 12-16%. In the invention, the particle size of the titanium dioxide is preferably 0.3-0.5 nm. In the present invention, the titanium dioxide preferably includes titanium dioxide 996. In the invention, the titanium dioxide has the functions of increasing covering and weather resistance.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises 1-5% of nano zirconia by mass percentage, and preferably 2-5.0% by mass. In the invention, the particle size of the nano zirconia is preferably 2-5 nm. In the present invention, the nano zirconia preferably includes a mixture of nano zirconia Z3103, nano zirconia Z3103 and modified nano zirconia Z3100, and more preferably a mixture of nano zirconia Z3103 and modified nano zirconia Z3100. In the present invention, the nano zirconia Z3103 is used in the form of powder. In the present invention, the modified nano zirconia Z3100 is preferably used in the form of a modified nano zirconia Z3100 dispersion; in the invention, the solid content of the modified nano-zirconia Z3100 dispersion is preferably 30-50%. In the present invention, the preparation method of the modified nano zirconia Z3100 dispersion preferably comprises the following steps: mixing nano-zirconia Z3100 dispersion liquid with silicon dioxide, and coating to obtain the modified nano-zirconia Z3100 dispersion liquid; the solid content of the nano zirconia Z3100 dispersion is preferably 30-40%; the weight ratio of the nano-zirconia Z3100 dispersion to the silicon dioxide is preferably 95: 5; the temperature of the wrapping is preferably 200-300 ℃, and the time is preferably 30 min. In the invention, the nano zirconia can improve the salt spray resistance, weather resistance, scrubbing resistance, wear resistance, water resistance and high temperature resistance of the coating. Particularly, the modified nano-zirconia Z3100 has a silicon-zirconium bond, has charge and steric hindrance stability, and has good freeze-thaw stability, and does not deteriorate for five times at 18 ℃ below zero.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises a leveling agent with the mass percentage of 0.1-0.5%, preferably 0.2-0.4%, and more preferably 0.3%. In the present invention, the leveling agent preferably includes a leveling agent 333.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises 0.1-0.3% of ultraviolet absorbent, preferably 0.15-0.25%, and more preferably 0.2%. In the present invention, the ultraviolet absorber preferably includes an ultraviolet absorber 5400WB and/or an ultraviolet absorber 010 WB.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises 1.0-3.0% of film-forming additive, preferably 1.5-2.5%, and more preferably 2.0%. In the present invention, the coalescent preferably includes coalescent DPNB.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall provided by the invention comprises 0.5-1.0% of a thickening agent, preferably 0.6-0.9%, and more preferably 0.7-0.8%. In the present invention, the thickener preferably comprises thickener WT-105A and/or thickener xs 83.
Based on the mass percentage of the aqueous fluorocarbon emulsion resin, the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall comprises the balance of water. In the present invention, the water is preferably deionized water.
In the invention, the preparation method of the amino fluorocarbon coating comprises the following steps:
sequentially mixing the aqueous fluorocarbon emulsion resin with a net odor neutralizer, ethylene glycol tertiary butyl ether, isopropanol, a dispersant, a wetting agent, a defoaming agent, a film-forming aid and a light stabilizer to obtain a primary mixed material;
mixing the primary mixed material with titanium dioxide, nano zirconia and water-based amino resin in sequence to obtain a middle mixed material;
and mixing the mixed material with a flatting agent, an adhesion promoter, an ultraviolet absorbent, a thickening agent and water in sequence to obtain the amino fluorocarbon coating.
And sequentially mixing the aqueous fluorocarbon emulsion resin with a net odor neutralizer, ethylene glycol tertiary butyl ether, isopropanol, a dispersant, a wetting agent, a defoaming agent, a film-forming aid and a light stabilizer to obtain a primary mixed material.
In the invention, the dispersion rotation speed of the aqueous fluorocarbon emulsion resin is preferably 600 rpm; the time is preferably 5-8 min.
In the present invention, the neat neutralizer is preferably dispersed at 800rpm for 15min after addition.
In the present invention, the ethylene glycol tertiary-butyl ether is preferably dispersed at 800rpm for 5min after the addition.
In the present invention, the isopropanol is preferably dispersed at 800rpm for 5min after the addition.
In the present invention, the dispersant is preferably dispersed at 800rpm for 5min after the addition.
In the present invention, the wetting agent is preferably dispersed at 800rpm for 5min after addition.
In the present invention, the defoaming agent is preferably dispersed at 800rpm for 3min after addition.
In the present invention, the film-forming aid is preferably dispersed at 800rpm for 3min after the addition.
In the present invention, the light stabilizer is preferably dispersed at 900rpm for 3min after the addition.
After the primary mixed material is obtained, the primary mixed material is sequentially mixed with titanium dioxide, nano-zirconia and water-based amino resin to obtain a middle mixed material.
In the invention, the mixing mode of the primary mixed material, the titanium dioxide, the nano zirconia and the aqueous amino resin is as follows: dispersing at 1500rpm for 20min is preferred.
In the invention, the primary mixed material, the titanium dioxide, the nano zirconia and the aqueous amino resin are mixed and then preferably ground, and the grinding parameters are not particularly limited in the invention as long as the fineness of the intermediate mixed material can reach below 10 μm.
After the intermediate mixed material is obtained, the intermediate mixed material is sequentially mixed with the flatting agent, the adhesion promoter, the ultraviolet absorbent, the thickening agent and water to obtain the amino fluorocarbon coating.
In the invention, the mixing mode of the intermediate mixing material, the leveling agent, the adhesion promoter, the ultraviolet absorbent, the thickening agent and the water is preferably as follows: dispersion was carried out at 800rpm for 15 min.
In the invention, after the intermediate mixing material, the leveling agent, the adhesion promoter, the ultraviolet absorbent, the thickening agent and water are mixed, preferably, the detection and the packaging are further carried out.
The parameters of the detection and packaging are not particularly limited in the present invention, and may be according to the parameters of the detection and packaging known to those skilled in the art.
The invention also provides a preparation method of the aluminum plate curtain wall, which comprises the following steps:
pretreating an aluminum plate to obtain a pretreated aluminum plate;
and coating priming paint for the aluminum plate curtain wall on the pretreatment aluminum plate, coating amino fluorocarbon finish paint on the next step, and baking to obtain the aluminum plate curtain wall.
The method comprises the steps of pretreating an aluminum plate to obtain a pretreated aluminum plate;
the primer for the aluminum plate curtain wall and the amino fluorocarbon finish paint are respectively the primer for the aluminum plate curtain wall and the amino fluorocarbon finish paint in the composite paint for the aluminum plate curtain wall.
In the invention, the material of the aluminum plate preferably comprises pure aluminum, aluminum alloy and an anti-rust aluminum plate, and the thickness of the aluminum plate is preferably 4-5 mm.
In the invention, the pretreatment comprises chromic acid-free treatment, water washing and drying in sequence.
In the present invention, the chromate free treatment comprises the steps of: and cleaning the aluminum plate assembly line in a chromium-free passivation solution pool at 50-60 ℃. In the present invention, the chromic acid-free treatment can remove oil stains, fingerprints, and rust from the surface of the aluminum sheet. The frequency of the water washing is not particularly limited, and the chromium-free passivation solution on the surface of the aluminum plate can be removed completely. In the present invention, the temperature of the drying is preferably 100 ℃.
After the pre-treated aluminum plate is obtained, the pre-treated aluminum plate is coated with primer for the aluminum plate curtain wall, and after leveling, amino fluorocarbon finish paint is coated and baked to obtain the aluminum plate curtain wall.
In the invention, the coating thickness of the primer for the aluminum plate curtain wall is preferably 14-16 μm, and more preferably 15 μm. In the present invention, the primer for coating the aluminum curtain wall is preferably electrostatic sprayed, and the parameters of the electrostatic spraying preferably include: the flow rate was 19 seconds.
In the invention, the leveling time is preferably 3-5 s.
In the invention, the coating thickness of the amino fluorocarbon coating is preferably 25-30 μm, more preferably 26-29 μm, and even more preferably 27-28 μm.
In the invention, the baking temperature is preferably 180-200 ℃, and the baking time is preferably 5-7 min.
The primer for aluminum panel curtain wall and the method for preparing the same, the composite paint for aluminum panel curtain wall and the method for preparing aluminum panel curtain wall provided by the present invention will be described in detail with reference to the following examples, which should not be construed as limiting the scope of the present invention.
Example 1
The primer for the aluminum plate curtain wall comprises the following components in percentage by mass:
aqueous hydroxyl acrylic emulsion HD-810250%, neutralizer DMEA 0.3%, deionized water 8.4%, cosolvent PNB 2.0%, cosolvent DPM 5.0%, dispersant 760W 0.6%, 024 defoamer 0.3%, 346 wetting agent 0.3%, 902 defoamer 0.2%, 4100 wetting agent 0.2%, titanium pigment 706 22%, King 3525 acid drier 0.3%, 105A thickener 0.20%, 53L thickener 0.2%, FB12 aliphatic isocyanate aqueous closed type curing agent 3.0%, and Zhanxin 303 amino resin 7.0%;
the solid content of the aqueous hydroxy acrylic emulsion HD-8102 is 43 wt%;
the hydroxyl value of the water-based hydroxyl acrylic emulsion HD-8102 is 85 mg/mol.
The preparation method comprises the following steps:
adding water-based hydroxyl acrylic emulsion HD-810250%, neutralizing agent DMEA 0.3%, deionized water 8.4%, cosolvent PNB 2.0%, cosolvent DPM 2.0%, dispersing agent 760W 0.6%, 024 defoaming agent 0.3%, 346 wetting agent 0.3%, 902 defoaming agent 0.2%, 4100 wetting agent 0.2%, and 706 titanium dioxide 22% one by one according to the sequence of 600 r/min, dispersing for 20min at 1200 r/min, transferring to the next procedure for grinding, controlling the grinding temperature at 40-50 ℃ and controlling the fineness at 10 mu m, thus obtaining the emulsion pre-pulping.
3.0% of FB12 aliphatic isocyanate water-based blocked curing agent, 7.0% of Zhanxin 303 amino resin and 3.0% of cosolvent DPM are mixed in advance to obtain a curing agent mixture.
Mixing the emulsion pre-pulping and the curing agent mixture together, stirring for 20 minutes at 800 revolutions per minute, sequentially adding 0.3 percent of King 3525 acid drier, dispersing for 5 minutes and 900 revolutions per minute, and finally slowly adding 0.2 percent of 105A thickening agent and 0.2 percent of 53L thickening agent to obtain the primer for the aluminum plate curtain wall with the viscosity of 85KU at the temperature of 23 ℃.
The surface drying time of the primer for the aluminum plate curtain wall is measured by GB/T13493-1992, and the leveling time of the aluminum plate curtain wall is measured by GB/T1750-: the tack-free time was 3 minutes and the leveling time was 5 seconds.
Comparative example 1
The differences from example 1 are: the aqueous hydroxy acrylic emulsion HD-8102 was replaced by W D-551 hydroxy acrylic dispersion.
The surface drying time of the primer for the aluminum plate curtain wall is measured by GB/T13493-1992, and the leveling time of the aluminum plate curtain wall is measured by GB/T1750-: the tack-free time was 10 minutes and the leveling time was 30 seconds.
Comparative example 2
The differences from example 1 are: the FB12 aliphatic isocyanate water-based blocked curing agent is replaced by an FB15 water-based blocked aliphatic polyisocyanate crosslinking agent.
The surface drying time of the primer for the aluminum plate curtain wall is measured by GB/T13493-1992, and the leveling time of the aluminum plate curtain wall is measured by GB/T1750-: the tack-free time was 15 minutes and the leveling time was 60 seconds.
Comparative example 3
The differences from example 1 are: the Zhanxin 303 amino resin was replaced with: 325 amino resin.
The surface drying time of the primer for the aluminum plate curtain wall is measured by GB/T13493-1992, and the leveling time of the aluminum plate curtain wall is measured by GB/T1750-: the tack-free time was 20 minutes and the leveling time was 120 seconds.
Example 2
An aluminum plate curtain wall composite paint: the paint comprises the primer for the aluminum plate curtain wall and the amino fluorocarbon finish paint in the embodiment 1;
the amino fluorocarbon finish paint comprises the following components in percentage by mass:
30.6% aqueous fluorocarbon emulsion resin 827;
25.4% aqueous fluorocarbon emulsion resin M15A;
0.1% odor neutralizer AMP-95;
3.0% ethylene glycol tertiary butyl ether;
1.5% isopropyl alcohol;
0.7% of a dispersant 181;
0.2% humectant 4100;
0.2% antifoam 902 w;
2.0% of film-forming aid DPNB;
0.2% light stabilizer 5400 WB;
18.2% titanium dioxide 996;
8.2% aqueous amino resin 303;
3.0% nano zirconia Z3103;
4.5% of modified nano-zirconia Z3100 dispersion (obtained by mixing nano-zirconia Z3100 dispersion with a solid content of 40% and silica in a mass ratio of 95: 5 and coating the mixture at 200 ℃ for 30 min);
0.1% defoamer 902;
0.3% of a leveling agent 333;
0.3% adhesion promoter 8877;
0.2% of an ultraviolet absorber 010 WB;
0.35% thickener xs 83;
0.25% thickener WT-105A;
0.70% ionic water.
The preparation method of the amino fluorocarbon finish paint comprises the following steps:
dispersing the aqueous fluorocarbon emulsion resin at 600rpm, adding a smell-removing neutralizer, and dispersing at 800rpm for 15 min; adding ethylene glycol tertiary butyl ether, and dispersing at 800rpm for 5 min; adding isopropanol, dispersing at 800rpm for 5min, adding dispersant, and dispersing at 800rpm for 5 min; adding wetting agent, and dispersing at 800rpm for 3 min; adding wetting agent and dispersing for 3min at 800 rpm; dispersing at 800rpm for 3min after adding a defoaming agent, dispersing at 800rpm for 3min after adding a film-forming aid, and dispersing at 900rpm for 2min after adding a light stabilizer to obtain a primary mixed material;
adding titanium dioxide, nano zirconia and water-based amino resin into the primary mixed material, dispersing at 1500rpm for 20min, and grinding to obtain a middle mixed material, wherein the fineness of the middle mixed material is less than 10 mu m;
and adding a leveling agent, an adhesion promoter, an ultraviolet absorbent, a thickening agent and water into the mixed material, dispersing for 15min at 800rpm, detecting, and packaging to obtain the amino fluorocarbon coating.
Example 3
An aluminum plate curtain wall composite paint: the paint comprises the primer for the aluminum plate curtain wall and the amino fluorocarbon finish paint in the embodiment 1;
the amino fluorocarbon finish paint comprises the following components in percentage by mass:
56.0% aqueous fluorocarbon emulsion resin 827;
0.1% odor neutralizer AMP-95;
2.0% ethylene glycol tertiary butyl ether;
1.5% isopropyl alcohol;
0.7% of a dispersant 181;
0.2% humectant 4100;
0.2% antifoam 902 w;
3.0% film-forming aid DPNB;
0.2% light stabilizer 5400 WB;
18% titanium dioxide 996;
8.2% aqueous amino resin 303;
3.0% nano zirconia Z3103;
4.5% of modified nano-zirconia Z3100 dispersion (obtained by mixing the nano-zirconia Z3100 dispersion with a solid content of 40% and silica according to a mass ratio of 95: 5 and wrapping the mixture at 200 ℃ for 30 min));
0.1% defoamer 902;
0.3% of a leveling agent 333;
0.2% adhesion promoter 8877;
0.25% thickener Xs 83;
0.3% of thickener WT-105A;
0.2% of an ultraviolet absorber 010 WB;
1.05% deionized water.
The preparation method of the amino fluorocarbon finish paint is the same as that of example 2.
Example 4
An aluminum plate curtain wall composite paint: the paint comprises the primer for the aluminum plate curtain wall and the amino fluorocarbon finish paint in the embodiment 1;
the amino fluorocarbon finish paint comprises the following components in percentage by mass:
56.0% aqueous fluorocarbon emulsion resin M15A;
0.1% odor neutralizer AMP-95;
2.0% of ethylene glycol tertiary ether;
1.5% isopropyl alcohol;
0.7% of a dispersant 181;
0.2% humectant 4100;
0.2% antifoam 902 w;
3.0% film-forming aid DPNB;
0.2% of a light stabilizer;
18.0% titanium dioxide 996;
8.2% aqueous amino resin 303;
3.0% nano zirconia Z3103;
4.5% of modified nano-zirconia Z3100 dispersion (obtained by mixing nano-zirconia Z3100 dispersion with a solid content of 40% and silica in a mass ratio of 95: 5 and coating the mixture at 200 ℃ for 30 min);
0.1% defoamer 902;
0.3% of a leveling agent 333;
0.3% adhesion promoter 8877;
0.2% of an ultraviolet absorber 010 WB;
0.35% thickener xs 83;
0.2% thickener WT-105A;
0.95% deionized water.
The preparation method of the amino fluorocarbon finish paint is the same as that of example 2.
Example 5
An aluminum plate curtain wall composite paint: the paint comprises the primer for the aluminum plate curtain wall and the amino fluorocarbon finish paint in the embodiment 1;
the amino fluorocarbon finish paint comprises the following components in percentage by mass:
30.6% aqueous fluorocarbon emulsion resin 827;
25.4% aqueous fluorocarbon emulsion resin M15A;
0.1% odor neutralizer AMP-95;
2% ethylene glycol tertiary ether;
1.5% isopropyl alcohol;
0.7% of a dispersant 181;
0.2% humectant 4100;
0.2% antifoam 902 w;
3.0% film-forming aid DPNB;
0.2% light stabilizer 5400 WB;
18% titanium dioxide 996;
8.2% aqueous amino resin 303;
7.5% nano zirconia Z3103;
0.1% defoamer 902;
0.3% of a leveling agent 333;
0.3% adhesion promoter 8877;
0.25 thickener Xs 83;
0.25% thickener WT-105;
0.3% of an ultraviolet absorber 010 WB;
0.9% deionized water.
The preparation method of the amino fluorocarbon finish paint is the same as that of example 2.
Example 6
An aluminum plate curtain wall composite paint: the paint comprises the primer for the aluminum plate curtain wall and the amino fluorocarbon finish paint in the embodiment 1;
the amino fluorocarbon finish paint comprises the following components in percentage by mass:
30.6% aqueous fluorocarbon emulsion resin 827;
25.4% aqueous fluorocarbon emulsion M15A;
0.1% odor neutralizer AMP-95;
2.0% of ethylene glycol tertiary ether;
1.5% isopropyl alcohol;
0.7% of a dispersant 181;
0.2% humectant 4100;
0.2% antifoam 902 w;
3.0% film-forming aid DPNB;
0.2% light stabilizer 5400 WB;
16% titanium dioxide 996;
8.2% aqueous amino resin 303;
10% of modified nano-zirconia Z3100 dispersion (obtained by mixing nano-zirconia Z3100 dispersion with solid content of 40% and silicon dioxide according to a mass ratio of 95: 5 and wrapping the mixture at 200 ℃ for 30 min));
0.1% defoamer 902W;
0.2% of a leveling agent 333;
0.3% adhesion promoter 8877;
0.2% of an ultraviolet absorber 010 WB;
0.25% thickener xs 83;
0.3% thickener WT 105A;
0.55% deionized water.
The preparation of the amino fluorocarbons was the same as in example 2.
Comparative example 4
The primer for the aluminum plate curtain wall in the example 2 is replaced by the primer for the aluminum plate curtain wall in the comparative example 1, and the finish paint is not changed.
Comparative example 5
The primer for the aluminum plate curtain wall in the example 2 is replaced by the primer for the aluminum plate curtain wall in the comparative example 2, and the finish paint is not changed.
Comparative example 6
The primer for the aluminum plate curtain wall in the example 2 is replaced by the primer for the aluminum plate curtain wall in the comparative example 3, and the finish paint is not changed.
Comparative example 7
The difference from example 2 is the omission of the light stabilizer 5400WB in the amino fluorocarbon topcoat.
Application example
The method for preparing the aluminum plate curtain wall by using the composite paint for the aluminum plate curtain wall in the embodiments 2 to 5 and the comparative examples 4 to 7 comprises the following steps:
sequentially carrying out chromium-free acid treatment, washing and drying on the aluminum plate to obtain a pretreated aluminum plate;
and coating 15 micrometers of primer for the aluminum plate curtain wall on the pretreated aluminum plate, leveling for 5s, coating 28 micrometers of amino fluorocarbon finish, and drying at 180 ℃ for 5min to obtain the aluminum plate curtain wall.
The performance of the aluminum plate curtain wall was tested and the results are shown in table 1.
Table 1 performance test results of aluminum plate curtain wall of application example
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The primer for the aluminum plate curtain wall is characterized by comprising the following components in percentage by mass:
aqueous hydroxyl acrylic emulsion HD-810250%, neutralizer DMEA 0.3%, deionized water 8.4%, cosolvent PNB 2.0%, cosolvent DPM 5.0%, dispersant 760W 0.6%, 024 defoamer 0.3%, 346 wetting agent 0.3%, 902 defoamer 0.2%, 4100 wetting agent 0.2%, titanium pigment 706 22%, King 3525 acid drier 0.3%, 105A thickener 0.20%, 53L thickener 0.2%, FB12 aliphatic isocyanate aqueous closed type curing agent 3.0%, and Zhanxin 303 amino resin 7.0%;
the solid content of the aqueous hydroxy acrylic emulsion HD-8102 is 43 wt%;
the hydroxyl value of the water-based hydroxyl acrylic emulsion HD-8102 is 85 mg/mol.
2. The method for preparing the primer for the aluminum panel curtain wall as recited in claim 1, comprising the steps of:
mixing and grinding aqueous hydroxyl acrylic emulsion HD-8102, a neutralizing agent, deionized water, a cosolvent PNB, a part of cosolvent DPM, a dispersing agent 760W, a 024 defoaming agent, a 346 wetting agent, a 902 defoaming agent, a 4100 wetting agent and 706 titanium dioxide to obtain emulsion pre-pulping;
mixing and grinding FB12 aliphatic isocyanate waterborne closed curing agent, Zhanxin 303 amino resin and the balance of cosolvent DPM to obtain a curing agent mixture;
and mixing the emulsion pre-pulping and the curing agent mixture, and then sequentially adding a King 3525 acid drier, a 105A thickener and a 53L thickener to obtain the primer for the aluminum plate curtain wall.
3. A composite paint for an aluminum plate curtain wall comprises a primer and an amino fluorocarbon finish which are independently packaged for the aluminum plate curtain wall;
the primer for the aluminum plate curtain wall is the primer for the aluminum plate curtain wall in the claim 1 or the primer for the aluminum plate curtain wall obtained by the preparation method in the claim 2;
the amino fluorocarbon finish paint comprises the following components in percentage by mass:
55-65% of water-based fluorocarbon emulsion resin, 0.1-0.3% of odor-free neutralizer, 3.0-10.0% of water-based amino resin, 1.0-3.0% of ethylene glycol tert-butyl ether, 1.0-3.0% of isopropanol, 0.5-0.7% of dispersing agent, 0.1-0.3% of wetting agent, 0.1-0.5% of defoaming agent, 0.2-0.5% of adhesion promoter, 0.1-0.5% of light stabilizer, 8-20% of nano zirconium oxide, 1-5% of leveling agent, 0.1-0.5% of ultraviolet absorbent, 1.0-3.0% of film-forming additive, 0.5-1.0% of thickening agent and the balance of water.
4. The composite paint for the aluminum panel curtain wall as claimed in claim 3, wherein the waterborne fluorocarbon emulsion resin comprises waterborne fluorocarbon emulsion resin 827 and/or waterborne fluorocarbon emulsion resin M15A.
5. The composite paint for aluminum panel curtain walls as claimed in claim 3, wherein the water-based amino resin comprises a water-based amino resin 303.
6. The composite paint for aluminum panel curtain walls as claimed in claim 3, wherein the adhesion promoter comprises an adhesion promoter 8877.
7. The composite paint for the aluminum plate curtain wall as claimed in any one of claims 3 to 6, wherein the preparation method of the amino fluorocarbon finish paint comprises the following steps:
sequentially mixing the aqueous fluorocarbon emulsion resin with a smell-purifying neutralizer, ethylene glycol tertiary ether, isopropanol, a dispersing agent, a wetting agent, a defoaming agent, a film-forming aid and a light stabilizer to obtain a primary mixed material;
mixing the primary mixed material with titanium dioxide, nano zirconia and water-based amino resin in sequence to obtain a middle mixed material;
and mixing the mixed material with a flatting agent, an adhesion promoter, an ultraviolet absorbent, a thickening agent and water in sequence to obtain the amino fluorocarbon coating.
8. The preparation method of the aluminum plate curtain wall is characterized by comprising the following steps of:
pretreating an aluminum plate to obtain a pretreated aluminum plate;
coating a primer for an aluminum plate curtain wall on the pre-treated aluminum plate, coating an amino fluorocarbon finish on the next step, and baking to obtain the aluminum plate curtain wall;
the primer for the aluminum plate curtain wall and the amino fluorocarbon finish are respectively the primer for the aluminum plate curtain wall and the amino fluorocarbon finish in the composite paint for the aluminum plate curtain wall as claimed in any one of claims 3 to 6.
9. The preparation method of the aluminum plate curtain wall primer, according to the claim 8, is characterized in that the coating thickness of the primer for the aluminum plate curtain wall is 14-16 μm, and the coating thickness of the amino fluorocarbon finish is 25-30 μm.
10. The method for preparing the polyester film according to claim 8, wherein the baking temperature is 180-200 ℃ and the baking time is 5-7 min.
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