CN112662251A - Thick-coating type water-based acrylic polyurethane coating and preparation method thereof - Google Patents
Thick-coating type water-based acrylic polyurethane coating and preparation method thereof Download PDFInfo
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- CN112662251A CN112662251A CN202011503637.4A CN202011503637A CN112662251A CN 112662251 A CN112662251 A CN 112662251A CN 202011503637 A CN202011503637 A CN 202011503637A CN 112662251 A CN112662251 A CN 112662251A
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Abstract
The invention provides a thick coating type water-based acrylic polyurethane coating which comprises the following components in parts by weight: 418.5-823.5 parts of water-based hydroxyl acrylic resin, 2.5-10.5 parts of dispersant, 2.8-10.8 parts of defoaming agent, 1.6-2.6 parts of water-based anti-settling agent, 64.4-69 parts of titanium dioxide, 122.1-227 parts of superfine barium sulfate, 3.2-6.0 parts of thickener, 20.43-32.15 parts of film-forming assistant and 10.3-100.9 parts of water. The finish paint prepared by the paint provided by the invention does not need to add new equipment or independently bake, can improve the production efficiency and reduce the coating cost, and has good paint film appearance.
Description
Technical Field
The invention relates to the technical field of paint preparation, in particular to a thick-coating type water-based acrylic polyurethane paint and a preparation method thereof.
Background
Paint (paint), which is commonly referred to as paint, is one of the materials, and refers to a liquid or solid material that can form a film under certain conditions to protect, decorate or perform other special functions (insulation, rust prevention, mildew prevention, heat resistance, etc.) when applied to the surface of an object. Since the early coatings mostly used vegetable oil as the main raw material, they were also called paints; synthetic resins have now replaced vegetable oils and are known as coatings. The paint is not liquid, the powder paint is a large class of paint, the paint belongs to organic chemical high molecular materials, and a formed coating film belongs to a high molecular compound type. According to the modern popular classification of chemical products, the coating belongs to fine chemical products. Modern coatings are gradually becoming a multifunctional engineering material, and are an important industry in chemical industry, and the functions of the modern coatings are mainly four: protecting, decorating and masking the defects and other special functions of the product, and improving the value of the product.
Nowadays, the national environment protection situation is severe, the water-based paint tends to be, but the water-based paint has own limitations, for example, the water-based acrylic polyurethane finish paint is not easy to be thickly coated, thick coating is easy to sag, miliaria is caused, and even paint diseases such as poor distinctness of image are caused, which is a technical problem which always troubles the water-based paint industry.
Disclosure of Invention
The technical problem is as follows: in order to solve the defects of the prior art, the invention aims to provide a thick-coating type water-based acrylic polyurethane coating and a preparation method thereof.
The technical scheme is as follows: the invention provides a thick coating type water-based acrylic polyurethane coating which comprises the following components in parts by weight: 418.5-823.5 parts of water-based hydroxyl acrylic resin, 2.5-10.5 parts of dispersant, 2.8-10.8 parts of defoaming agent, 1.6-2.6 parts of water-based anti-settling agent, 64.4-69 parts of titanium dioxide, 122.1-227 parts of superfine barium sulfate, 3.2-6.0 parts of thickener, 20.43-32.15 parts of film-forming assistant and 10.3-100.9 parts of water.
Preferably, the thick coating type water-based acrylic polyurethane coating comprises the following components in parts by weight: 621.0 parts of water-based hydroxyl acrylic resin, 6.5 parts of dispersant, 6.8 parts of defoamer, 2.2 parts of water-based anti-settling agent, 66.8 parts of titanium dioxide, 174.5 parts of superfine barium sulfate, 4.6 parts of thickener, 26.29 parts of film-forming assistant and 55.6 parts of water.
The invention also provides a preparation method of the thick coating type water-based acrylic polyurethane coating, which comprises the following steps:
(1) uniformly stirring the aqueous hydroxyl acrylic resin, the titanium dioxide, the dispersing agent and the defoaming agent under a dispersion machine, sequentially adding the mixture into a grinding machine, and grinding the mixture until the fineness is below 20 mu m;
(2) sequentially adding a film forming aid, a thickening agent, a water-based anti-settling agent, superfine barium sulfate and water into the ground slurry, and uniformly stirring;
(3) adding color paste to obtain the color paste.
Wherein, in the step (1), the grinding machine is a three-roller grinding machine.
Has the advantages that: the finish paint prepared by the paint provided by the invention does not need to add new equipment or independently bake, can improve the production efficiency and reduce the coating cost, and has good paint film appearance.
The invention well solves the industrial problem that the water-based acrylic polyurethane finish paint can not be thickly coated, limits the film thickness, and is undoubtedly a good news for some paint users with high requirements on appearance and protective performance; the weather resistance of the finish paint can be better provided by thick coating of the water-based acrylic polyurethane finish paint, and the appearance of the paint film can be ensured to be attractive; for customers with heavy protection requirements such as drilling equipment, bridge equipment, wind power equipment and the like, the coating machine can be practical and attractive, the trouble of two coatings is eliminated, the time is saved, the coating efficiency is improved, the cost is saved, the waste is reduced, and the pollution to the environment is minimized.
Drawings
FIG. 1 shows the finished paint film produced by the present invention.
Detailed Description
The following examples are given to further describe the present invention in detail with reference to specific embodiments. The following examples are intended to illustrate the invention, but not to limit the scope of the invention.
The experimental procedures in the following examples are conventional, except for the specific illustrations. The raw materials and test reagents used in the examples were commercially available products except for those specifically mentioned.
Example 1
The thick coating type water-based acrylic polyurethane coating comprises the following components in parts by weight: 418.5 parts of water-based hydroxyl acrylic resin, 2.5 parts of dispersant, 2.8 parts of defoamer, 1.6 parts of water-based anti-settling agent, 64.4 parts of titanium dioxide, 122.1 parts of superfine barium sulfate, 3.2 parts of thickener, 20.43 parts of film-forming assistant and 10.3 parts of water.
The preparation method of the thick coating type water-based acrylic polyurethane coating comprises the following steps:
(1) uniformly stirring the aqueous hydroxyl acrylic resin, the titanium dioxide, the dispersing agent and the defoaming agent under a dispersion machine, sequentially adding the mixture into a grinding machine, and grinding the mixture until the fineness is below 20 mu m; the grinding machine is a three-roller grinding machine;
(2) sequentially adding a film forming aid, a thickening agent, a water-based anti-settling agent, superfine barium sulfate and water into the ground slurry, and uniformly stirring;
(3) adding color paste to obtain the color paste.
The thick coating type water-based acrylic polyurethane coating is coated to prepare a paint film, the thickness of the dry film reaches 114 mu m, the paint film has no paint defects and sagging phenomenon, and the distinctness of image is good.
Example 2
The thick coating type water-based acrylic polyurethane coating comprises the following components in parts by weight: 823.5 parts of water-based hydroxyl acrylic resin, 10.5 parts of dispersant, 10.8 parts of defoamer, 2.6 parts of water-based anti-settling agent, 69 parts of titanium dioxide, 227 parts of superfine barium sulfate, 6.0 parts of thickener, 32.15 parts of film-forming assistant and 100.9 parts of water.
The preparation method of the thick coating type water-based acrylic polyurethane coating comprises the following steps:
(1) uniformly stirring the aqueous hydroxyl acrylic resin, the titanium dioxide, the dispersing agent and the defoaming agent under a dispersion machine, sequentially adding the mixture into a grinding machine, and grinding the mixture until the fineness is below 20 mu m; the grinding machine is a three-roller grinding machine;
(2) sequentially adding a film forming aid, a thickening agent, a water-based anti-settling agent, superfine barium sulfate and water into the ground slurry, and uniformly stirring;
(3) adding color paste to obtain the color paste.
The thick coating type water-based acrylic polyurethane coating is coated to prepare a paint film, the thickness of a dry film reaches 116 mu m, the paint film has no paint defects and sagging phenomenon, and the distinctness of image is good.
Example 3
The thick-coating type water-based acrylic polyurethane coating comprises the following components in parts by weight: 621.0 parts of water-based hydroxyl acrylic resin, 6.5 parts of dispersant, 6.8 parts of defoamer, 2.2 parts of water-based anti-settling agent, 66.8 parts of titanium dioxide, 174.5 parts of superfine barium sulfate, 4.6 parts of thickener, 26.29 parts of film-forming assistant and 55.6 parts of water.
The preparation method of the thick coating type water-based acrylic polyurethane coating comprises the following steps:
(1) uniformly stirring the aqueous hydroxyl acrylic resin, the titanium dioxide, the dispersing agent and the defoaming agent under a dispersion machine, sequentially adding the mixture into a grinding machine, and grinding the mixture until the fineness is below 20 mu m; the grinding machine is a three-roller grinding machine;
(2) sequentially adding a film forming aid, a thickening agent, a water-based anti-settling agent, superfine barium sulfate and water into the ground slurry, and uniformly stirring;
(3) adding color paste to obtain the color paste.
The thick coating type water-based acrylic polyurethane coating is coated to prepare a paint film, the thickness of the dry film reaches 125 mu m, the paint film has no paint defects and sagging phenomenon, and the distinctness of image is good.
It will be apparent to those skilled in the art that the above description of specific embodiments of the invention is not intended to limit the application of the invention, and that various equivalents and modifications may be made thereto depending on the circumstances. All such substitutions and modifications are intended to be within the scope of the appended claims without departing from the spirit of the invention.
Claims (4)
1. A thick coating type water-based acrylic polyurethane coating is characterized in that: the paint comprises the following components in parts by weight: 418.5-823.5 parts of water-based hydroxyl acrylic resin, 2.5-10.5 parts of dispersant, 2.8-10.8 parts of defoaming agent, 1.6-2.6 parts of water-based anti-settling agent, 64.4-69 parts of titanium dioxide, 122.1-227 parts of superfine barium sulfate, 3.2-6.0 parts of thickener, 20.43-32.15 parts of film-forming assistant and 10.3-100.9 parts of water.
2. The thick-coating water-based acrylic polyurethane coating according to claim 1, wherein: the paint comprises the following components in parts by weight: 621.0 parts of water-based hydroxyl acrylic resin, 6.5 parts of dispersant, 6.8 parts of defoamer, 2.2 parts of water-based anti-settling agent, 66.8 parts of titanium dioxide, 174.5 parts of superfine barium sulfate, 4.6 parts of thickener, 26.29 parts of film-forming assistant and 55.6 parts of water.
3. The method for preparing a thick coating type aqueous acrylic urethane paint according to any one of claims 1 to 2, characterized in that: the method comprises the following steps:
(1) uniformly stirring the aqueous hydroxyl acrylic resin, the titanium dioxide, the dispersing agent and the defoaming agent under a dispersion machine, sequentially adding the mixture into a grinding machine, and grinding the mixture until the fineness is below 20 mu m;
(2) sequentially adding a film forming aid, a thickening agent, a water-based anti-settling agent, superfine barium sulfate and water into the ground slurry, and uniformly stirring;
(3) adding color paste to obtain the color paste.
4. The method for preparing a thick coating type aqueous acrylic urethane paint according to claim 3, characterized in that: in the step (1), the grinding machine is a three-roller grinding machine.
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| CN202011503637.4A CN112662251A (en) | 2020-12-18 | 2020-12-18 | Thick-coating type water-based acrylic polyurethane coating and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893527A (en) * | 2015-06-09 | 2015-09-09 | 浩力森涂料（上海）有限公司 | Aqueous polyurethane coating with increased limiting film thickness and preparation method of aqueous polyurethane coating |
| CN109401597A (en) * | 2018-09-27 | 2019-03-01 | 天津美士邦涂料化工有限公司 | A kind of aqueous polyurethane finishing coat |
| CN109439165A (en) * | 2018-09-27 | 2019-03-08 | 天津美士邦涂料化工有限公司 | A kind of preparation method of aqueous polyurethane finishing coat |
| CN110484087A (en) * | 2019-06-26 | 2019-11-22 | 河北晨阳工贸集团有限公司 | A kind of environment protecting water-based paint, its application and the method for applying Stuff (to) |
| CN110669419A (en) * | 2019-10-30 | 2020-01-10 | 河北晨阳工贸集团有限公司 | Water-based acrylic polyurethane coating and preparation method thereof |
| CN111393888A (en) * | 2020-02-26 | 2020-07-10 | 石家庄市油漆厂 | Water-based DTM polyurethane coating and preparation method thereof |
-
2020
- 2020-12-18 CN CN202011503637.4A patent/CN112662251A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893527A (en) * | 2015-06-09 | 2015-09-09 | 浩力森涂料（上海）有限公司 | Aqueous polyurethane coating with increased limiting film thickness and preparation method of aqueous polyurethane coating |
| CN109401597A (en) * | 2018-09-27 | 2019-03-01 | 天津美士邦涂料化工有限公司 | A kind of aqueous polyurethane finishing coat |
| CN109439165A (en) * | 2018-09-27 | 2019-03-08 | 天津美士邦涂料化工有限公司 | A kind of preparation method of aqueous polyurethane finishing coat |
| CN110484087A (en) * | 2019-06-26 | 2019-11-22 | 河北晨阳工贸集团有限公司 | A kind of environment protecting water-based paint, its application and the method for applying Stuff (to) |
| CN110669419A (en) * | 2019-10-30 | 2020-01-10 | 河北晨阳工贸集团有限公司 | Water-based acrylic polyurethane coating and preparation method thereof |
| CN111393888A (en) * | 2020-02-26 | 2020-07-10 | 石家庄市油漆厂 | Water-based DTM polyurethane coating and preparation method thereof |
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Application publication date: 20210416 |