CN106883746B - High-elongation rubber coating and preparation method thereof - Google Patents
High-elongation rubber coating and preparation method thereof Download PDFInfo
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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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
- C08K3/02—Elements
- C08K3/04—Carbon
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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
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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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing 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
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C08K2003/2237—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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
Abstract
The invention discloses a high-elongation rubber coating and a preparation method thereof, comprising A, B components; the component A mainly comprises 25-40 parts by mass of polyether modified polyaspartic acid ester resin, 10-20 parts by mass of adhesion promoting resin, 5-15 parts by mass of organic solvent, 20-30 parts by mass of pigment and filler and other functional auxiliaries; the component B is a curing agent; the mass ratio of the component A to the component B is 1: 0.5-2.0; the preparation method comprises the following steps: firstly, mixing polyether modified polyaspartic acid ester resin, adhesion promoting resin, a dispersing agent, a defoaming agent, pigment and filler and part of organic solvent in proportion, and then stirring at a high speed for dispersing; then grinding; stirring and dispersing the ground color paste and the leveling agent at high speed; mixing, adding organic solvent to adjust viscosity to obtain component A, and mixing component A and component B. The product of the invention has excellent adhesive force, excellent mechanical property and elongation at break.
Description
Technical Field
The invention belongs to the technical field of rubber coatings and preparation thereof, and particularly relates to a high-elongation rubber coating and a preparation method thereof.
Background
The rubber article is a flexible material. When the rubber product is used, the relative movement can be absorbed, and deformation is generated. When rubber deforms, the coating coated on a rubber product tends to deform, so that the rubber coating is required to have extremely high elongation at break and excellent adhesive force, otherwise, the rubber coating is easy to crack and fall off, and the decorative and protective properties of the rubber coating are seriously influenced.
Elongation at break, elongation, of the rubber coating refers to the percentage of the total elongation of the rubber coating after tensile break to the original gauge length. The existing rubber coating has low elongation, so that the rubber coating is easy to crack when the substrate is greatly deformed. Although the polyurea coating has high elongation, the adhesive force is poor when the polyurea coating is coated on a rubber substrate, the polyurea coating is easy to fall off, and the decorative and protective properties of the polyurea coating are seriously influenced. How to maximize the elongation of the rubber coating and have excellent adhesion has been a technical problem that is difficult to overcome by those skilled in the art.
Disclosure of Invention
The technical problem to be solved by the present invention is to overcome the disadvantages and drawbacks mentioned in the background art, and to provide a high elongation rubber coating with excellent adhesion, excellent mechanical properties and elongation at break, and a method for preparing the same.
In order to solve the technical problems, the technical scheme provided by the invention is a high-elongation rubber coating which comprises the following components A and B;
the component A is mainly prepared from the following components in parts by mass:
25-40 parts by mass of polyether modified polyaspartic acid ester resin;
10-20 parts by mass of an adhesion promoting resin;
5-15 parts by mass of an organic solvent;
20-30 parts of pigment and filler; and
0.8-3 parts of other functional additives;
the component B is a curing agent;
the mass ratio of the component A to the component B is 1: 0.5-2.0.
The high-elongation rubber coating is preferably as follows: the molecular weight of the polyether modified polyaspartic acid ester resin is 400-2000, and the NH equivalent is 220-1400.
The high-elongation rubber coating is preferably as follows: the adhesion promoting resin is one or more selected from acrylic resin, polyurethane resin, chlorinated rubber and chlorinated paraffin. More preferably: the adhesion promoting resin is compounded by two of acrylic resin, polyurethane resin, chlorinated rubber and chlorinated paraffin, and at least contains chlorinated rubber, wherein the mass part of the chlorinated rubber is not less than 10 parts. In order to better improve the adhesive force of the product on a rubber substrate, so that the product is not easy to fall off on rubber and the effect of protecting a coating is achieved, the adhesive force promoting resin is preferably added into the formula of the product, so that the coating can be better suitable for coating the rubber substrate and has very excellent adhesive force.
The high-elongation rubber coating is preferably as follows: the organic solvent is selected from one or more of xylene, ethyl acetate, butyl acetate, cyclohexanone, propylene glycol methyl ether acetate and 100# solvent.
The high-elongation rubber coating is preferably as follows: the pigment and filler is selected from one or more of titanium dioxide, talcum powder, barium sulfate, phthalocyanine blue, calcium sulfate and carbon black.
The high-elongation rubber coating is preferably as follows: the other functional auxiliary agents comprise:
0.5-2.0 parts by mass of a dispersant;
0.1-0.5 parts by mass of a defoaming agent; and
0.2-1 part by mass of a leveling agent.
More preferably, the dispersant is selected from the group consisting of BYK163, BYK-180, EFKA4050, EFKA4010, hume 983;
the antifoaming agent is one or a combination of BYK141, HX-2000 and D.modest 2700;
the leveling agent is selected from one or more of BYK306, BYK358, EFKA-3030, ELEMENT432 and Dowcorn 235.
The high-elongation rubber coating is preferably as follows: the curing agent is polyether modified hexamethylene diisocyanate prepolymer. More preferably, the molecular weight of the polyether modified hexamethylene diisocyanate prepolymer is 500-1600, and the NCO value of the prepolymer is 2.8% -5.2%.
As a general technical concept, the invention also provides a preparation method of the high-elongation rubber coating, which comprises the steps of preparing the component A, preparing the component B and mixing the components A and B: the preparation method of the component A comprises the following steps:
mixing polyether modified polyaspartic acid ester resin, adhesion promoting resin, dispersant, defoamer, pigment and filler and part of organic solvent in proportion, and then stirring and dispersing at high speed in a high-speed dispersing machine; grinding with sand mill until the particle fineness is not greater than 15 μm; putting the ground color paste and the leveling agent into a high-speed disperser together to continuously stir and disperse at a high speed; and (3) after uniformly mixing, adding the rest part of organic solvent to adjust the viscosity of the component A (the viscosity of the component A is preferably controlled to be 100-120 s coated in a No. 4 cup), and continuously and uniformly stirring to obtain the component A.
In the above preparation method, the high-speed stirring dispersion is preferably stirring at 1200 to 1800rpm for 30 to 60 min.
In the preparation method, preferably, the mixing of the component A-B refers to mixing the component A and the component B according to the mass ratio of 1: 0.5-2.0, uniformly stirring, and adjusting the viscosity to be 20-30 s for coating 4# cup.
Compared with the prior art, the invention has the advantages that:
the coating disclosed by the invention adopts polyether modified polyaspartic acid ester resin and adhesion promoting resin as base materials of the rubber coating, preferably adopts polyether modified hexamethylene diisocyanate prepolymer as a curing agent, and a coating film structure of the coating film contains a large number of ether bonds and ester bonds and is very excellent in flexibility, so that the prepared coating film has excellent adhesion and excellent mechanical properties on flexible material rubber, and the elongation at break of the coating film can reach 400%, which is far higher than that of similar products in the market. In the coating, the adhesion promoting resin is added, so that the coating has excellent adhesion to a rubber substrate, and is beneficial to decoration and protection of the rubber substrate.
Detailed Description
In order to facilitate an understanding of the present invention, the present invention will be described more fully and in detail with reference to the preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
Example 1:
the high-elongation rubber coating comprises the following components A and B;
the component A is mainly prepared from the following components in parts by mass:
35 parts by mass of polyether modified polyaspartic acid ester resin (NH equivalent is about 240-420, molecular weight is 500-750);
10 parts by mass of chlorinated rubber;
4 parts by mass of organic solvent butyl acetate;
4 parts by mass of organic solvent propylene glycol monomethyl ether acetate;
30 parts of pigment and filler (titanium dioxide and barium sulfate);
dispersant BYK 1631.0 parts by mass;
defoaming agent BYK 1410.3; and
leveling agent ELEMENT 4320.5 parts by mass;
the component B is a curing agent polyether modified hexamethylene diisocyanate prepolymer (molecular weight 600-730, NCO value 4.5% -4.9%);
the mass ratio of the component A to the component B is 1: 1.8-2.0.
The preparation method of the high-elongation rubber coating specifically includes the steps of preparing the component a, preparing the component B, and mixing the components a to B:
the preparation method of the component A comprises the following steps: mixing the polyether modified polyaspartic acid ester resin, chlorinated rubber, a dispersing agent, a defoaming agent, a pigment and a filler and part of an organic solvent (3 parts by mass of butyl acetate and 3 parts by mass of propylene glycol methyl ether acetate) in parts by mass according to a ratio, and then stirring and dispersing at a high speed (1200-1800 rpm) in a high-speed dispersing machine; grinding with sand mill until the particle fineness is not greater than 15 μm; putting the ground color paste and the leveling agent into a high-speed disperser together, and continuously stirring and dispersing for 1 hour at a high speed; after uniformly mixing, adding the rest part of organic solvent (1 part by mass of butyl acetate and 1 part by mass of propylene glycol methyl ether acetate) to adjust the viscosity of the mixture, and continuously stirring the mixture uniformly by using a dispersion machine to obtain a component A; the viscosity of the A component is controlled to be 109s coated on a No. 4 cup;
preparing the component B polyether modified hexamethylene diisocyanate prepolymer;
and finally, mixing the component A and the component B according to the mass ratio of 1: 1.8-2.0 when in use, uniformly stirring, adjusting the viscosity to coat No. 4 cup 26s, and finally constructing by a spraying method.
Example 2:
the high-elongation rubber coating comprises the following components A and B;
the component A is mainly prepared from the following components in parts by mass:
30 parts by mass of polyether modified polyaspartic acid ester resin (NH equivalent is about 320-560, molecular weight is 620-950);
10 parts by mass of chlorinated rubber;
2 parts by mass of acrylic resin;
2 parts by mass of organic solvent ethyl acetate;
2 parts by mass of organic solvent propylene glycol monomethyl ether acetate;
3 parts by mass of an organic solvent 100# solvent;
25 parts of pigment and filler (titanium dioxide and talcum powder);
dispersant EFKA 40100.8 parts by mass;
defoaming agent HX-20000.2 weight portions; and
flatting agents BYK306 and BYK 3580.5 in parts by mass;
the component B is a curing agent polyether modified hexamethylene diisocyanate prepolymer (the molecular weight is 1100-1260, and the NCO value is 3.2-3.6%);
the mass ratio of the component A to the component B is 1: 1.4-1.6.
The preparation method of the high-elongation rubber coating specifically includes the steps of preparing the component a, preparing the component B, and mixing the components a to B:
the preparation method of the component A comprises the following steps: mixing the polyether modified polyaspartic acid ester resin, chlorinated rubber, acrylic resin, a dispersing agent, a defoaming agent, pigments and fillers and part of organic solvent (2 parts by mass of ethyl acetate, 1 part by mass of propylene glycol methyl ether acetate and 2 parts by mass of 100# solvent) in parts by mass according to a ratio, and then stirring and dispersing at a high speed (1200-1800 rpm) in a high-speed dispersing machine; grinding with sand mill until the particle fineness is not greater than 15 μm; putting the ground color paste and the leveling agent into a high-speed disperser together, and continuously stirring and dispersing for 0.5 hour at a high speed; after uniformly mixing, adding the rest part of organic solvent (1 part by mass of propylene glycol monomethyl ether acetate and 1 part by mass of 100# solvent) to adjust the viscosity of the mixture, and continuously and uniformly stirring the mixture by using a dispersion machine to obtain a component A; the viscosity of the A component is controlled to coat No. 4 cup 106 s;
preparing the component B polyether modified hexamethylene diisocyanate prepolymer;
and finally, mixing the component A and the component B according to the mass ratio of 1: 1.4-1.6 when in use, uniformly stirring, adjusting the viscosity to coat a No. 4 cup for 24s, and finally constructing by using a spraying method.
Example 3:
the high-elongation rubber coating comprises the following components A and B;
the component A is mainly prepared from the following components in parts by mass:
40 parts by mass of polyether modified polyaspartic acid ester resin (NH equivalent is about 950-1250, molecular weight is 1150-1500);
10 parts by mass of chlorinated rubber;
2 parts of chlorinated paraffin;
3 parts by mass of organic solvent xylene;
4 parts by mass of organic solvent butyl acetate;
3 parts by mass of organic solvent cyclohexanone;
28 parts of pigment and filler (titanium dioxide and calcium sulfate);
dispersing agent, modesty 9830.9 parts by mass;
defoaming agent D27000.4 weight portions; and
flatting agent Dowcorning2350.5 mass portion;
the component B is a curing agent polyether modified hexamethylene diisocyanate prepolymer (the molecular weight is 800-1000, and the NCO value is 3.8-4.2%);
the mass ratio of the component A to the component B is 1: 0.9-1.1.
The preparation method of the high-elongation rubber coating specifically includes the steps of preparing the component a, preparing the component B, and mixing the components a to B:
the preparation method of the component A comprises the following steps: mixing the polyether modified polyaspartic acid ester resin, chlorinated rubber, chlorinated paraffin, a dispersing agent, a defoaming agent, pigments and fillers and part of organic solvent (2 parts by mass of butyl acetate and 3 parts by mass of cyclohexanone) in parts by mass according to a proportion, and then stirring and dispersing at a high speed (1200-1800 rpm) in a high-speed dispersing machine; grinding with sand mill until the particle fineness is not greater than 15 μm; putting the ground color paste and the leveling agent into a high-speed disperser together, and continuously stirring and dispersing for 0.5 hour at a high speed; after uniformly mixing, adding the rest part of organic solvent (3 parts by mass of dimethylbenzene and 2 parts by mass of butyl acetate) to adjust the viscosity of the mixture, and continuously stirring the mixture uniformly by using a dispersion machine to obtain a component A; the viscosity of the A component is controlled to coat the No. 4 cup 112 s;
preparing the component B polyether modified hexamethylene diisocyanate prepolymer;
and finally, mixing the component A and the component B according to the mass ratio of 1: 0.9-1.1 when in use, uniformly stirring, adjusting the viscosity to a 4# cup for 25s, and finally constructing by using a spraying method.
Example 4:
the high-elongation rubber coating comprises the following components A and B;
the component A is mainly prepared from the following components in parts by mass:
35 parts by mass of polyether modified polyaspartic acid ester resin (NH equivalent is about 1100-1350, molecular weight is 1370-1800);
12 parts by mass of chlorinated rubber;
8 parts by mass of a polyurethane resin;
3 parts by mass of organic solvent butyl acetate;
3 parts by mass of an organic solvent propylene glycol methyl ether acetate;
3 parts by mass of an organic solvent 100# solvent;
20 parts of pigment and filler (titanium dioxide, barium sulfate, phthalocyanine blue and carbon black);
dispersant EFKA 40501.5 parts by mass;
defoaming agent HX-20000.2 weight portions; and
leveling agent EFKA-30301 weight portions;
the component B is a curing agent polyether modified hexamethylene diisocyanate prepolymer (molecular weight is 600-800, NCO value is 4.5-5.0%);
the mass ratio of the component A to the component B is 1: 0.5-0.8.
The preparation method of the high-elongation rubber coating specifically includes the steps of preparing the component a, preparing the component B, and mixing the components a to B:
the preparation method of the component A comprises the following steps: mixing the polyether modified polyaspartic acid ester resin, chlorinated rubber, polyurethane resin, a dispersing agent, a defoaming agent, pigments and fillers and part of organic solvent (2 parts by mass of butyl acetate, 2 parts by mass of 100# solvent and 2 parts by mass of propylene glycol methyl ether acetate) in parts by mass according to a ratio, and then stirring and dispersing at a high speed (1200-1800 rpm) in a high-speed dispersing machine; grinding with sand mill until the particle fineness is not greater than 15 μm; putting the ground color paste and the leveling agent into a high-speed disperser together, and continuously stirring and dispersing for 1 hour at a high speed; after uniformly mixing, adding the rest part of organic solvent (1 part by mass of butyl acetate, 1 part by mass of 100# solvent and 1 part by mass of propylene glycol methyl ether acetate) to adjust the viscosity of the mixture, and continuously stirring the mixture uniformly by using a dispersion machine to obtain a component A; the viscosity of the A component is controlled to coat No. 4 cup 113 s;
preparing the component B polyether modified hexamethylene diisocyanate prepolymer;
and finally, mixing the component A and the component B according to the mass ratio of 1: 0.5-0.8 when in use, uniformly stirring, adjusting the viscosity to coat No. 4 cups for 26s, and finally constructing by using a spraying method.
The rubber coatings of examples 1 to 4 above were sprayed on rubber and tested for elongation at break, the results of which are shown in Table 1 below.
Table 1: test results of elongation at break of rubber coating in examples
Claims (5)
1. A high-elongation rubber coating comprises the following components A and B; the method is characterized in that:
the component A is prepared from the following components in parts by mass:
25-40 parts by mass of polyether modified polyaspartic acid ester resin;
10-20 parts by mass of an adhesion promoting resin;
5-15 parts by mass of an organic solvent;
20-30 parts of pigment and filler; and
0.8-3 parts of other functional additives;
the component B is a curing agent; the curing agent is polyether modified hexamethylene diisocyanate prepolymer;
the mass ratio of the component A to the component B is 1: 0.5-2.0;
the molecular weight of the polyether modified polyaspartic acid ester resin is 400-2000, and the NH equivalent is 220-1400;
the adhesive force promoting resin is compounded by two of acrylic resin, polyurethane resin, chlorinated rubber and chlorinated paraffin, and at least comprises chlorinated rubber, wherein the mass part of the chlorinated rubber is not less than 10 parts;
the molecular weight of the polyether modified hexamethylene diisocyanate prepolymer is 500-1600, and the NCO value of the prepolymer is 2.8-5.2%.
2. The high elongation rubber coating according to claim 1, wherein: the organic solvent is selected from one or more of xylene, ethyl acetate, butyl acetate, cyclohexanone, propylene glycol monomethyl ether acetate and 100# solvent; the pigment and filler is selected from one or more of titanium dioxide, talcum powder, barium sulfate, phthalocyanine blue, calcium sulfate and carbon black.
3. The high elongation rubber coating of claim 1 wherein said other functional additives comprise:
0.5-2.0 parts by mass of a dispersant;
0.1-0.5 parts by mass of a defoaming agent; and
0.2-1 part by mass of a leveling agent;
the dispersant is selected from one or more of BYK163, BYK-180, EFKA4050, EFKA4010 and humble 983;
the antifoaming agent is one or a combination of BYK141, HX-2000 and D.modest 2700;
the leveling agent is selected from one or more of BYK306, BYK358, EFKA-3030, ELEMENT432 and Dowcorn 235.
4. A method for preparing the high-elongation rubber coating as claimed in claim 3, comprising the steps of preparing the A component, preparing the B component and mixing the A-B components: the method is characterized in that: the preparation method of the component A comprises the following steps:
mixing polyether modified polyaspartic acid ester resin, adhesion promoting resin, dispersant, defoamer, pigment and filler and part of organic solvent in proportion, and then stirring and dispersing at high speed in a high-speed dispersing machine; grinding with sand mill until the particle fineness is not greater than 15 μm; putting the ground color paste and the leveling agent into a high-speed disperser together to continuously stir and disperse at a high speed; after mixing evenly, adding the rest part of organic solvent to adjust the viscosity, and continuously stirring evenly to obtain the component A.
5. The method of claim 4, wherein: the high-speed stirring dispersion refers to stirring at the speed of 1200-1800 rpm for 30-60 min;
the viscosity of the component A is controlled to be 100-120 s of a coating 4# cup;
the mixing of the component A-B refers to mixing the component A and the component B according to the mass ratio of 1: 0.5-2.0, uniformly stirring, and adjusting the viscosity to coat No. 4 cups for 20-30 s.
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| US11820910B2 (en) | 2017-11-30 | 2023-11-21 | Axalta Coating Systems Ip Co., Llc | Coating compositions for application utilizing a high transfer efficiency applicator and methods and systems thereof |
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| CN115044288A (en) * | 2022-06-23 | 2022-09-13 | 常州回天新材料有限公司 | Preparation method of white backboard air layer coating |
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| US11820910B2 (en) | 2017-11-30 | 2023-11-21 | Axalta Coating Systems Ip Co., Llc | Coating compositions for application utilizing a high transfer efficiency applicator and methods and systems thereof |
| US11840639B2 (en) | 2017-11-30 | 2023-12-12 | Axalta Coating Systems Ip Co., Llc | Coating compositions for application utilizing a high transfer efficiency applicator and methods and systems thereof |
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| CN106883746A (en) | 2017-06-23 |
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