CN110669419A - Water-based acrylic polyurethane coating and preparation method thereof - Google Patents
Water-based acrylic polyurethane coating and preparation method thereof Download PDFInfo
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- CN110669419A CN110669419A CN201911043797.2A CN201911043797A CN110669419A CN 110669419 A CN110669419 A CN 110669419A CN 201911043797 A CN201911043797 A CN 201911043797A CN 110669419 A CN110669419 A CN 110669419A
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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
- 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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Abstract
The invention relates to the technical field of coatings, and particularly discloses a water-based acrylic polyurethane coating and a preparation method thereof. The water-based acrylic polyurethane coating comprises the following components in percentage by mass: 50-60% of water-based hydroxyl acrylic resin; 15-25% of color paste; 0-1% of matting powder; 0.5-1% of polyurethane thickener; 0.3-1% of acrylic acid thickening agent; 10-15% of water-based isocyanate curing agent; 3-5% of a film-forming assistant; 0.5-1% of base material wetting agent; 0.2 to 0.5 percent of wetting and leveling agent; 0.1 to 0.3 percent of neutralizer; 0.2 to 0.4 percent of defoaming agent; 5-10% of deionized water. The paint provided by the invention has the advantages of good extinction performance, good gloss stability, and good flexibility, impact resistance, water resistance, acid and alkali resistance and weather resistance of a paint film.
Description
Technical Field
The invention relates to the technical field of coatings, and particularly relates to a water-based acrylic polyurethane coating and a preparation method thereof.
Background
The acrylic polyurethane finish paint is a bi-component acrylic polyurethane paint, has good decoration, excellent weather resistance, high paint film fullness and high hardness, is superior to common aromatic polyurethane, rubber and ethylene paints, and is widely applied to the fields of engineering machinery, industrial equipment and the like. However, most of the existing products are high-gloss products, the gloss is over 75(60 °), and it is difficult to meet the increasing demand of personalized coating (such as semi-gloss paint).
In the prior art, a filler and a matting powder are added on the basis of a high-gloss coating for matting treatment. The acrylic polyurethane coating delusted by the delustering powder has unstable gloss, and the addition of a large amount of the delustering powder and the filler increases the cost, influences the storage stability of the coating, and easily causes a paint film to become brittle, reduces the mechanical property, deteriorates the weather resistance, reduces the interlayer adhesive force between the paint film and the primer, and the like.
Disclosure of Invention
Aiming at the technical problems of the existing acrylic polyurethane coating, the invention provides a water-based acrylic polyurethane coating and a preparation method thereof.
In order to achieve the purpose of the invention, the embodiment of the invention adopts the following technical scheme:
the water-based acrylic polyurethane coating comprises the following components in percentage by mass: 50-60% of water-based hydroxyl acrylic resin; 15-25% of color paste; 0-1% of matting powder; 0.5-1% of polyurethane thickener; 0.3-1% of acrylic acid thickening agent; 10-15% of water-based isocyanate curing agent; 3-5% of a film-forming assistant; 0.5-1% of base material wetting agent; 0.2 to 0.5 percent of wetting and leveling agent; 0.1 to 0.3 percent of neutralizer; 0.2 to 0.4 percent of defoaming agent; 5-10% of deionized water.
Compared with the prior art, the waterborne acrylic polyurethane coating provided by the invention has the advantages that the waterborne hydroxyl acrylic resin is a main film forming substance, so that a paint film can obtain better adhesive force, chemical resistance, weather resistance, leveling property and crosslinking density. The polyurethane thickener and the acrylic thickener are used together, so that hydrophobic groups of the two thickeners are mutually adsorbed to form a large network structure together with a film forming substance, the polyurethane thickener and/or the acrylic thickener have a good adsorption stabilizing effect on fillers in the extinction powder and/or the color paste, the extinction efficiency is improved, meanwhile, the two thickeners, the base material wetting agent and the wetting and leveling agent have a synergistic effect, the anti-sagging performance of a paint film is improved, the leveling property and the fluidity of the paint are improved, the extinction powder and the fillers have certain freedom of movement, the arrangement orientation of the extinction powder and/or the fillers is facilitated, the extinction performance is further improved, and the gloss stability is improved. In addition, due to the sharing of the two thickeners, the using amount of the matting powder can be effectively reduced or no matting powder is added, the mechanical property and the chemical property of the paint film are ensured and improved, and the paint film has good flexibility, impact resistance, water resistance, acid and alkali resistance and weather resistance.
Furthermore, the aqueous hydroxyl acrylic resin consists of the medium-low hydroxyl value hydroxyl acrylic resin and the high hydroxyl value hydroxyl acrylic resin with the mass ratio of 1:0.5-0.8, the high hydroxyl value hydroxyl acrylic resin endows the paint film with mechanical properties such as good flexibility, fullness and the like, and the medium-low hydroxyl value hydroxyl acrylic resin provides the paint film with lower gloss and acts together with a thickening agent to improve the extinction property and gloss stability of the paint film.
Further, the hydroxyl content of the low-medium hydroxyl value hydroxyl acrylic resin is 2-3%; the hydroxyl content of the high hydroxyl value hydroxyl acrylic resin is 3.5-4.5%. When the cross-linking density of the paint film is ensured, the thickener, the color paste and the matting powder are matched, so that the matting performance is improved, the gloss stability is improved, and the paint film has good mechanical and chemical properties.
Furthermore, the color paste is titanium dioxide dispersion paste, is matched with the water-based hydroxyl acrylic resin for use, improves the weather resistance and the adhesive force of a paint film, is beneficial to improving the extinction performance, reduces the consumption of the extinction powder, and further ensures the mechanical property of the paint film.
Further, the titanium dioxide dispersion slurry comprises the following components in parts by weight: 20-25 parts of titanium dioxide; 3-6 parts of deionized water; 0.5-1 part of wetting dispersant (BYK-190); 0.1-0.2 part of defoaming agent (BYK-024) and 1-2 parts of environment-friendly solvent, and fully mixing the components, and grinding until the fineness is less than or equal to 20 mu m to obtain the titanium dioxide dispersion slurry.
Furthermore, the polyurethane thickener is a nonionic polyurethane associative thickener, is used together with an acrylic thickener, enhances the anti-sagging performance of a paint film, improves the flowing and leveling properties of the paint film under the action of other additives, and further improves the chemical performance of the paint film under the combined action of matting powder and color paste.
Furthermore, the acrylic acid thickener is an acrylic acid associative thickener, can react with a neutralizer in the paint, is used together with a polyurethane thickener while thickening a medium water phase, forms a network structure through hydrophobic group crosslinking association, enhances the viscosity at low shear rate, prevents the phenomena of sedimentation and sagging, and simultaneously weakens the adverse effect of the acrylic acid thickener on the water resistance of a paint film.
Further, the extinction powder is silicon dioxide extinction powder, and the extinction performance is improved, and meanwhile, the chemical resistance and the weather resistance of a paint film are further improved.
Further, the neutralizing agent is dimethylethanolamine; the film-forming assistant is dipropylene glycol methyl ether or dipropylene glycol butyl ether, and the film-forming assistant and other components act together to ensure the overall performance of a paint film.
The invention also provides a preparation method of the water-based acrylic polyurethane coating, which comprises the following steps:
s1: mixing the water-based hydroxyl acrylic resin with the color paste, the defoaming agent, the wetting and leveling agent, the base material wetting agent, the neutralizing agent, the flatting powder, the polyurethane thickener, the acrylic thickener and the deionized water, and stirring to obtain a first mixed material;
s2: mixing the water-based isocyanate curing agent with a film-forming auxiliary agent to obtain a second mixed material;
s3: and mixing the first mixed material with the second mixed material to obtain the water-based acrylic polyurethane coating.
Further, the stirring speed is 600-800r/min, and the stirring time is 15-25min, so that the components are fully mixed to form a uniform system, and the gloss stability of a paint film is improved.
Compared with the prior art, the preparation method of the water-based acrylic polyurethane coating provided by the invention is simple in process and convenient to operate, the water-based hydroxy acrylic resin is mixed with the components such as the matting powder, the polyurethane thickener and the acrylic thickener to fully contact and disperse the components to form a uniform system to obtain a first component, the curing agent is mixed with the film-forming assistant to obtain a second component, and the two components are mixed to obtain the water-based acrylic polyurethane coating, so that the 60-degree gloss of a dry film of a paint film is mainly 30-70, and the water-based acrylic polyurethane coating has good mechanical and chemical properties.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The water-based acrylic polyurethane coating comprises the following components in percentage by mass: 50% of water-based hydroxyl acrylic resin PT-2042; 25% of titanium dioxide dispersing pulp; extinction powder OK520 is 0.4%; the nonionic polyurethane associative thickener Rheolate 299 is 0.5 percent; acrylic acid associative thickener THIXOL 53L is 0.3%; 11.5 percent of water-based isocyanate curing agent W20-100; 4% of dipropylene glycol methyl ether; the substrate wetting agent Tego510 is 0.5%; the wetting leveling agent BYK346 accounts for 0.5 percent; dimethylethanolamine 0.1%; 0.2 percent of defoaming agent BYK-028; 7 percent of deionized water,
the titanium dioxide dispersion slurry comprises the following components in parts by weight: 25 parts of titanium dioxide; 3 parts of deionized water; 1 part of wetting dispersant BYK-190; 0.1 part of defoaming agent BYK-024 and 1 part of butyl acetate, fully mixing and grinding until the fineness is less than or equal to 20 mu m to obtain the titanium dioxide dispersing pulp.
The preparation method of the water-based acrylic polyurethane coating comprises the following steps:
s1: mixing the water-based hydroxyl acrylic resin PT-2042 with titanium dioxide dispersion slurry, a defoaming agent BYK-028, a wetting leveling agent BYK346, a substrate wetting agent Tego510, dimethylethanolamine, matting powder OK520, a thickening agent Rheolate 299, a thickening agent THIXOL 53L and deionized water, and stirring at 600r/min for 25min to obtain a first mixed material;
s2: mixing the curing agent W20-100 with dipropylene glycol methyl ether to obtain a second mixed material;
s3: and mixing the first mixed material and the second mixed material to obtain the water-based acrylic polyurethane coating.
Example 2
The water-based acrylic polyurethane coating comprises the following components in percentage by mass: the content of high hydroxyl value hydroxyl acrylic resin PT-2042 (carboxyl content is 4.2%) is 22%; the content of the medium-low hydroxyl value hydroxyl acrylic resin HD-8426 (the content of carboxyl is 2.8 percent) is 28 percent; 21% of titanium dioxide dispersing pulp; extinction powder OK520 is 1%; the nonionic polyurethane associated thickener Rheolate 299 is 0.6 percent; acrylic acid associative thickener THIXOL 53L is 0.3%; 10% of water-based isocyanate curing agent W20-100; 5% of dipropylene glycol butyl ether; the substrate wetting agent Tego510 is 1%; the wetting leveling agent BYK346 accounts for 0.5 percent; dimethylethanolamine 0.2%; 0.4 percent of defoaming agent BYK-028; 10 percent of deionized water,
the titanium dioxide dispersion slurry comprises the following components in parts by weight: 23 parts of titanium dioxide; 3 parts of deionized water; 0.5 part of wetting dispersant BYK-190; 0.2 part of defoaming agent BYK-024 and 2 parts of ethyl acetate, fully mixing and grinding until the fineness is less than or equal to 20 mu m to obtain the titanium dioxide dispersing pulp.
The preparation method of the water-based acrylic polyurethane coating comprises the following steps:
s1: mixing the high hydroxyl value hydroxyl acrylic resin PT-2042 and the medium and low hydroxyl value hydroxyl acrylic resin HD-8426 with titanium dioxide dispersing slurry, a defoaming agent BYK-028, a wetting leveling agent BYK346, a substrate wetting agent Tego510, dimethylethanolamine, matting powder OK520, a thickening agent Rheolate 299, a thickening agent THIXOL 53L and deionized water, and stirring at 800r/min for 15min to obtain a first mixed material;
s2: mixing the curing agent W20-100 with dipropylene glycol butyl ether to obtain a second mixed material;
s3: and mixing the first mixed material and the second mixed material to obtain the water-based acrylic polyurethane coating.
Example 3
The water-based acrylic polyurethane coating comprises the following components in percentage by mass: the hydroxyl acrylic resin KY-4960 with high hydroxyl value (carboxyl content is 3.6%) is 20%; the hydroxyl acrylic resin KY-4950 with medium and low hydroxyl value (carboxyl content is 2.0%) is 40%; 15% of titanium dioxide dispersing pulp; the nonionic polyurethane associative thickener Rheolate 299 is 1%; 1% of acrylic acid associative thickener THIXOL 53L; 14 percent of water-based isocyanate curing agent W20-100; 3% of dipropylene glycol methyl ether; the substrate wetting agent Tego510 is 0.5%; the wetting leveling agent BYK346 accounts for 0.2 percent; dimethylethanolamine 0.1%; 0.2 percent of defoaming agent BYK-028; 5 percent of deionized water,
the titanium dioxide dispersion slurry comprises the following components in parts by weight: 20 parts of titanium dioxide; 6 parts of deionized water; 0.6 part of wetting dispersant BYK-190; 0.2 part of defoaming agent BYK-024 and 1.5 parts of butyl acetate, fully mixing and grinding until the fineness is less than or equal to 20 mu m to obtain the titanium dioxide dispersing pulp.
The preparation method of the water-based acrylic polyurethane coating comprises the following steps:
s1: mixing the high hydroxyl value hydroxyl acrylic resin KY-4960 and the medium and low hydroxyl value hydroxyl acrylic resin KY-4950 with titanium dioxide dispersing slurry, a defoaming agent BYK-028, a wetting leveling agent BYK346, a substrate wetting agent Tego510, dimethyl ethanolamine, a thickening agent Rheolate 299, a thickening agent THIXOL 53L and deionized water, and stirring at 700r/min for 20min to obtain a first mixed material;
s2: mixing the curing agent W20-100 with dipropylene glycol methyl ether to obtain a second mixed material;
s3: and mixing the first mixed material and the second mixed material to obtain the water-based acrylic polyurethane coating.
Example 4
The water-based acrylic polyurethane coating comprises the following components in percentage by mass: the content of high hydroxyl value hydroxyl acrylic resin PT-2042 (carboxyl content is 4.2%) is 19.5%; the hydroxyl acrylic resin KY-4950 with medium and low hydroxyl value (carboxyl content is 2.0%) is 32.5%; 20% of titanium dioxide dispersing slurry; extinction powder OK520 is 0.4%; the nonionic polyurethane associative thickener Rheolate 299 is 0.5 percent; acrylic acid associative thickener THIXOL 53L is 0.5%; 15% of water-based isocyanate curing agent W20-100; 5% of dipropylene glycol butyl ether; the substrate wetting agent Tego510 is 0.7%; the wetting leveling agent BYK346 accounts for 0.3 percent; dimethylethanolamine 0.3%; 0.3 percent of defoaming agent BYK-028; 5 percent of deionized water,
the titanium dioxide dispersion slurry comprises the following components in parts by weight: 25 parts of titanium dioxide; 5 parts of deionized water; 1 part of wetting dispersant BYK-190; 0.1 part of defoaming agent BYK-024 and 2 parts of ethyl acetate, fully mixing and grinding until the fineness is less than or equal to 20 mu m to obtain the titanium dioxide dispersing pulp.
The preparation method of the water-based acrylic polyurethane coating comprises the following steps:
s1: mixing the high hydroxyl value hydroxyl acrylic resin PT-2042 and the medium and low hydroxyl value hydroxyl acrylic resin KY-4950 with titanium dioxide dispersing slurry, a defoaming agent BYK-028, a wetting leveling agent BYK346, a substrate wetting agent Tego510, dimethylethanolamine, matting powder OK520, a thickening agent Rheolate 299, a thickening agent THIXOL 53L and deionized water, and stirring at 600r/min for 20min to obtain a first mixed material;
s2: mixing the curing agent W20-100 with dipropylene glycol butyl ether to obtain a second mixed material;
s3: and mixing the first mixed material and the second mixed material to obtain the water-based acrylic polyurethane coating.
In order to better illustrate the technical solution of the present invention, further comparison is made below by means of a comparative example and an example of the present invention.
Comparative example 1
An aqueous acrylic urethane paint was prepared by replacing the thickener THIXOL 53L in example 1 with the same amount of thickener Rcellulolate 299 and preparing the same as in example 1 except for the components.
Comparative example 2
An aqueous acrylic urethane paint was prepared by replacing the thickener rhelate 299 in example 1 with the same amount of thickener THIXOL 53L, and the other components and preparation method were the same as in example 1.
Comparative example 3
The thickener THIXOL 53L in example 1 was replaced with the same amount of the hydrophobically modified alkali-swellable associative thickener DR-1, and the other components and preparation method were the same as those in example 1 to obtain an aqueous acrylic urethane coating material.
Comparative example 4
The matting wax powder PEW-0202 with the same amount as that of the matting wax powder OK520 in example 1 was replaced with the matting wax powder OK520 in example 1, and the other components and the preparation method were the same as those in example 1, to obtain a water-based acrylic polyurethane coating.
To better illustrate the characteristics of the waterborne acrylic polyurethane coatings provided by the examples of the present invention, the waterborne acrylic polyurethane coatings prepared in examples 1-4 and comparative examples 1-4 were tested for their corresponding properties, and the results are shown in Table 1.
TABLE 1
Note: the test method for the 60 DEG gloss of the paint film is as follows: adjusting the paint to a proper viscosity (the viscosity is measured by coating a No. 4 cup for 20s at 23 ℃), spraying the paint on a clean glass plate, controlling the three thicknesses of a paint film to be 50-60 mu m, and testing the 60-degree gloss of the paint film by adopting a BGD 512 single-angle gloss instrument after the paint film is self-dried for 48 hours at room temperature.
The data show that the water-based acrylic polyurethane coating provided by the invention has better extinction performance, 60-degree gloss of about 55 and better gloss stability. In addition, the paint film has good flexibility, impact resistance, water resistance, acid and alkali resistance and weather resistance, and can meet the requirements of semi-gloss paint.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A water-based acrylic polyurethane coating is characterized in that: the composition comprises the following components in percentage by mass: 50-60% of water-based hydroxyl acrylic resin; 15-25% of color paste; 0-1% of matting powder; 0.5-1% of polyurethane thickener; 0.3-1% of acrylic acid thickening agent; 10-15% of water-based isocyanate curing agent; 3-5% of a film-forming assistant; 0.5-1% of base material wetting agent; 0.2 to 0.5 percent of wetting and leveling agent; 0.1 to 0.3 percent of neutralizer; 0.2 to 0.4 percent of defoaming agent; 5-10% of deionized water.
2. The aqueous acrylic polyurethane coating of claim 1, wherein: the water-based hydroxyl acrylic resin consists of a medium-low hydroxyl value hydroxyl acrylic resin and a high hydroxyl value hydroxyl acrylic resin with the mass ratio of 1: 0.5-0.8.
3. The aqueous acrylic polyurethane coating of claim 2, wherein: the hydroxyl content of the medium-low hydroxyl value hydroxyl acrylic resin is 2-3%; the hydroxyl content of the high hydroxyl value hydroxyl acrylic resin is 3.5-4.5%.
4. The aqueous acrylic polyurethane coating of claim 1, wherein: the color paste is titanium dioxide dispersion paste.
5. The aqueous acrylic polyurethane coating of claim 1, wherein: the polyurethane thickener is nonionic polyurethane associative thickener.
6. The aqueous acrylic polyurethane coating of claim 1, wherein: the acrylic acid thickener is an acrylic acid associative thickener.
7. The aqueous acrylic polyurethane coating of claim 1, wherein: the matting powder is silicon dioxide matting powder.
8. The aqueous acrylic polyurethane coating of claim 1, wherein: the neutralizing agent is dimethylethanolamine; the film-forming assistant is dipropylene glycol methyl ether or dipropylene glycol butyl ether.
9. A method for preparing the aqueous acrylic polyurethane coating according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
s1: mixing the water-based hydroxyl acrylic resin with the color paste, the defoaming agent, the wetting and leveling agent, the base material wetting agent, the neutralizing agent, the flatting powder, the polyurethane thickener, the acrylic thickener and the deionized water, and stirring to obtain a first mixed material;
s2: mixing the water-based isocyanate curing agent with a film-forming auxiliary agent to obtain a second mixed material;
s3: and mixing the first mixed material with the second mixed material to obtain the water-based acrylic polyurethane coating.
10. The method of preparing the aqueous acrylic polyurethane coating according to claim 9, wherein: the stirring speed is 600-800r/min, and the time is 15-25 min.
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| CN111440521A (en) * | 2020-05-12 | 2020-07-24 | 东莞真诚化工有限公司 | Recoating environment-friendly water-based plastic polyurethane paint and preparation method thereof |
| CN112063283A (en) * | 2020-08-10 | 2020-12-11 | 百通达科技（东台）有限公司 | Preparation method of powder-free water-based coating of polyvinyl chloride gloves |
| CN112662251A (en) * | 2020-12-18 | 2021-04-16 | 上海瀚岱化学有限公司 | Thick-coating type water-based acrylic polyurethane coating and preparation method thereof |
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| CN112063283A (en) * | 2020-08-10 | 2020-12-11 | 百通达科技（东台）有限公司 | Preparation method of powder-free water-based coating of polyvinyl chloride gloves |
| CN112662251A (en) * | 2020-12-18 | 2021-04-16 | 上海瀚岱化学有限公司 | Thick-coating type water-based acrylic polyurethane coating and preparation method thereof |
| CN112708337A (en) * | 2020-12-24 | 2021-04-27 | 浩力森涂料（上海）有限公司 | Water-based two-component polyurethane primer-topcoat coating and preparation method thereof |
| CN112852282A (en) * | 2021-01-25 | 2021-05-28 | 浙江菲达新材料有限公司 | Water-based double-component grease-sealing clear primer and preparation method thereof |
| CN113025181A (en) * | 2021-05-08 | 2021-06-25 | 福建省三棵树新材料有限公司 | Water-based environment-friendly double-component acrylic polyurethane coating composition with diffuse reflection and preparation method thereof |
| CN113527985A (en) * | 2021-06-17 | 2021-10-22 | 广东绿树环保涂料科技有限公司 | Heavy-duty anticorrosive coating environment-friendly water-based industrial coating and preparation method thereof |
| CN113502118A (en) * | 2021-07-23 | 2021-10-15 | 湖南松井新材料股份有限公司 | Waterborne polyurethane coating and preparation method and application thereof |
| CN114196255A (en) * | 2021-12-30 | 2022-03-18 | 浙江华宝油墨有限公司 | Water-based polyurethane ink for gravure printing |
| CN115197597A (en) * | 2022-07-15 | 2022-10-18 | 湖南松井新材料股份有限公司 | Coating and preparation method and application thereof |
| CN115197597B (en) * | 2022-07-15 | 2023-09-01 | 湖南松井新材料股份有限公司 | Coating and preparation method and application thereof |
| CN115678403A (en) * | 2022-11-02 | 2023-02-03 | 佛山阳光逸采涂料科技有限公司 | Water-based electronic component insulating coating and preparation method thereof |
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