阅读说明：本技术 一种水性丙烯酸面漆及其制备方法 (Water-based acrylic finish paint and preparation method thereof ) 是由 郭焱 郑同同 周莲洁 乔洪冰 常海燕 李永岗 于 2020-06-08 设计创作，主要内容包括：本发明提供的水性丙烯酸面漆的制备方法,将液体缓蚀防锈剂、DMEA与PM混合,调节PH为7.8-8.3,充分搅拌后变为均相淡黄色液体,再加入蒸馏水搅拌,静止得到液体缓蚀防锈剂混合溶液,按一定质量比将水、分散剂、消泡剂、膨润土及颜料混合搅拌研磨至细度≤10μm,得到水浆,按一定质量将树脂、所述水浆、常规助剂、成膜助剂、增稠剂、防沉剂、蒸馏水及所述液体缓蚀防锈剂混合溶液混合得到所述水性丙烯酸面漆,本发明提供的水性丙烯酸面漆的制备方法,将液体缓蚀防锈剂经过中和稀释水解,可适用于水性体系,并将液体缓释防锈剂运用到水性丙烯酸制备中,使用液体防锈剂代替粉末状防锈颜料,既可以保证防腐性能又能达到保光提光的目的。(The preparation method of the water-based acrylic finish paint provided by the invention comprises the steps of mixing a liquid corrosion inhibition antirust agent, DMEA and PM, adjusting the pH value to 7.8-8.3, fully stirring to obtain a homogeneous-phase light yellow liquid, adding distilled water, stirring, standing to obtain a liquid corrosion inhibition antirust agent mixed solution, mixing, stirring and grinding water, a dispersing agent, a defoaming agent, bentonite and a pigment according to a certain mass ratio until the fineness is less than or equal to 10 mu m to obtain a water slurry, mixing a resin, the water slurry, a conventional auxiliary agent, a film-forming auxiliary agent, a thickening agent, an anti-settling agent, distilled water and the liquid corrosion inhibition antirust agent mixed solution according to a certain mass ratio to obtain the water-based acrylic finish paint, neutralizing, diluting and hydrolyzing the liquid corrosion inhibition antirust agent, applying the liquid slow-release antirust agent to the preparation of water-based acrylic acid, and using the liquid antirust agent to replace a powdery antirust pigment, not only can ensure the corrosion resistance, but also can achieve the purposes of light preservation and light extraction.)

1. The preparation method of the water-based acrylic finish paint is characterized by comprising the following steps:

mixing the liquid corrosion inhibition antirust agent, DMEA and PM, adjusting the pH value to 7.8-8.3, fully stirring to obtain a homogeneous pale yellow liquid, adding distilled water, stirring, and standing to obtain a liquid corrosion inhibition antirust agent mixed solution;

the mass ratio of (10-20): (1-2): (0.1-0.5): (0.1-1): (20-30) mixing, stirring and grinding water, a dispersing agent, a defoaming agent, bentonite and a pigment until the fineness is less than or equal to 10 microns to obtain water slurry;

the mass ratio of (25-35): (40-60): (1-5): (1-15): (0.1-1): (0.1-1): (10-20): (3-10) mixing resin, the water slurry, a conventional auxiliary agent, a film forming auxiliary agent, a thickening agent, an anti-settling agent, distilled water and the liquid corrosion and rust inhibitor mixed solution to obtain the water-based acrylic finish paint.

2. The preparation method of the water-based acrylic finish paint according to claim 1, wherein in the step of mixing the liquid corrosion and rust inhibitor, DMEA and PM, adjusting the pH to 7.8-8.3, fully stirring the mixture to form a homogeneous pale yellow liquid, adding distilled water, stirring the mixture, and standing the mixture to obtain a liquid corrosion and rust inhibitor mixed solution, the mass ratio of the liquid corrosion and rust inhibitor, the DMEA, the PM and the distilled water is (50-70%): (20-40%): (10% -20%) and (10% -20%).

3. The method for preparing the water-based acrylic finish paint according to claim 1, wherein in the step of mixing, stirring and grinding water, a dispersing agent, a defoaming agent, bentonite and pigment and filler to the fineness of less than or equal to 10 μm to obtain the water slurry, the dispersing agent is one or more of BYK-190, Zhanxin 6208 and BYK-194.

4. The preparation method of the water-based acrylic finish paint as claimed in claim 1, wherein in the step of mixing, stirring and grinding water, a dispersing agent, a defoaming agent, bentonite and a pigment to the fineness of less than or equal to 10 μm to obtain a water slurry, the defoaming agent is one or more of BYK-011, BYK-015 and TEGO 901W.

5. The method for preparing the water-based acrylic finish paint according to claim 1, wherein in the step of mixing, stirring and grinding water, a dispersing agent, a defoaming agent, bentonite and a pigment to the fineness of less than or equal to 10 μm to obtain a water slurry, the pigment is titanium white, phthalocyanine green, phthalocyanine blue, ultramarine, ferrite yellow or lemon yellow.

6. The method of claim 1, wherein the step of mixing a resin, the water slurry, a conventional auxiliary, a film forming auxiliary, a thickener, an anti-settling agent, distilled water, and the liquid corrosion and rust inhibitor mixture solution to obtain the aqueous acrylic finish paint, the resin is one or more combinations of acrylic resins.

7. The method for preparing the water-based acrylic finish paint according to claim 1, wherein in the step of mixing the resin, the water slurry, the conventional additives, the film forming additives, the thickening agent, the anti-settling agent, the distilled water and the mixed solution of the liquid corrosion and rust inhibitor to obtain the water-based acrylic finish paint, the conventional additives are one or more of a water-based organic silicon defoamer, an amine neutralizer and a substrate wetting agent.

8. The method for preparing the water-based acrylic finish paint according to claim 1, wherein in the step of mixing the resin, the water slurry, the conventional auxiliary agent, the film forming auxiliary agent, the thickening agent, the anti-settling agent, the distilled water and the mixed solution of the liquid corrosion and rust inhibitor to obtain the water-based acrylic finish paint, the film forming auxiliary agent is one or more of ethers and alcohol ester film forming substances.

9. The method for preparing the water-based acrylic finish paint according to claim 1, wherein in the step of mixing the resin, the water slurry, the conventional auxiliary agent, the film forming auxiliary agent, the thickening agent, the anti-settling agent, the distilled water and the mixed solution of the liquid corrosion-inhibition antirust agent to obtain the water-based acrylic finish paint, the anti-settling agent is one or a combination of a plurality of gas-phase silica and organic bentonite, and the thickening agent is a polyurethane association type rheological auxiliary agent.

10. A water-based acrylic finish paint characterized by being prepared by the preparation method of the water-based acrylic finish paint according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of coatings, and particularly relates to a water-based acrylic finish and a preparation method thereof.

Background

Acrylic systems were the earliest application and a wide range of applications in water-borne coatings. The acrylic primer, the acrylic finish and the acrylic primer can be generally divided into a primer, a finish and an acrylic primer, and can be applied to different fields according to the requirements of customers. The primer is a coating that protects the substrate and provides corrosion protection, and the topcoat is a customer's desire for an appearance color. The general coating system needs the combination of a primer and a finish, but with the development of the technology, many customers want to abandon the mode of two coatings, want one coating to achieve the antirust capacity and provide color, the bottom surface is inoculated together, the bottom surface is combined together and grows, the bottom surface is combined together and has the antirust capacity, so that powder materials such as the antirust pigment are contained, the influence on the gloss is inevitable, the bottom surface combined system is generally 50-70 degrees (60 degrees) of gloss, and the invention replaces the antirust pigment by using the liquid corrosion and rust inhibitor, so that the gloss is not influenced, even the organic component in the liquid corrosion and rust inhibitor can improve the gloss of the coating, and the gloss can reach 80-95 degrees (60 degrees) and has better antirust capacity.

The bottom surface matching coating has the problems of complex working procedures, matching risk and the like, the requirements of customers cannot be completely met by using one coating layer alone, the finish paint cannot provide corrosion resistance, the primer cannot provide weather resistance and the like. Some coatings integrated with the bottom surface on the market are generally of a discarding gloss and cannot achieve a high light system, or do not have an anti-corrosion characteristic and cannot provide substrate protection.

Disclosure of Invention

Therefore, it is necessary to provide a method for preparing a water-based acrylic finish paint which can ensure the corrosion resistance and achieve the purpose of gloss retention and gloss improvement aiming at the defects in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a preparation method of water-based acrylic finish paint comprises the following steps:

mixing the liquid corrosion inhibition antirust agent, DMEA and PM, adjusting the pH value to 7.8-8.3, fully stirring to obtain a homogeneous pale yellow liquid, adding distilled water, stirring, and standing to obtain a liquid corrosion inhibition antirust agent mixed solution;

the mass ratio of (10-20): (1-2): (0.1-0.5): (0.1-1): (20-30) mixing, stirring and grinding water, a dispersing agent, a defoaming agent, bentonite and a pigment until the fineness is less than or equal to 10 microns to obtain water slurry;

the mass ratio of (25-35): (40-60): (1-5): (1-15): (0.1-1): (0.1-1): (10-20): (3-10) mixing resin, the water slurry, a conventional auxiliary agent, a film forming auxiliary agent, a thickening agent, an anti-settling agent, distilled water and the liquid corrosion and rust inhibitor mixed solution to obtain the water-based acrylic finish paint.

In some embodiments, in the step of mixing a liquid corrosion and rust inhibitor, DMEA and PM, adjusting the PH to 7.8-8.3, fully stirring the mixture to form a homogeneous pale yellow liquid, adding distilled water, stirring the mixture, and standing the mixture to obtain a mixed solution of the liquid corrosion and rust inhibitor, DMEA, PM and distilled water are in a mass ratio (50% -70%): (20-40%): (10% -20%) and (10% -20%).

In some embodiments, in the step of mixing, stirring and grinding water, a dispersing agent, an antifoaming agent, bentonite and a pigment to the fineness of less than or equal to 10 μm to obtain the water slurry, the dispersing agent is one or more of BYK-190, BYK 6208 and BYK-194.

In some embodiments, in the step of mixing, stirring and grinding water, a dispersing agent, an antifoaming agent, bentonite and a pigment to the fineness of less than or equal to 10 μm to obtain the water slurry, the antifoaming agent is one or more of BYK-011, BYK-015 and TEGO 901W.

In some embodiments, in the step of mixing, stirring and grinding water, a dispersing agent, a defoaming agent, bentonite and a pigment to the fineness of less than or equal to 10 μm to obtain the water slurry, the pigment is titanium white or phthalocyanine green or phthalocyanine blue or ultramarine blue or iron yellow or lemon yellow.

In some embodiments, in the step of mixing the resin, the water slurry, the conventional auxiliary agent, the film forming auxiliary agent, the thickening agent, the anti-settling agent, the distilled water and the mixed solution of the liquid corrosion and rust inhibitor to obtain the aqueous acrylic finish paint, the resin is one or more of acrylic resins.

In some embodiments, in the step of mixing resin, the water slurry, conventional additives, a film forming additive, a thickening agent, an anti-settling agent, distilled water and the mixed solution of the liquid corrosion and rust inhibitor to obtain the water-based acrylic finish paint, the conventional additives are one or more of a water-based silicone defoaming agent, an amine neutralizing agent and a substrate wetting agent.

In some embodiments, in the step of mixing resin, the water slurry, conventional additives, film forming additives, thickening agents, anti-settling agents, distilled water and the mixed solution of the liquid corrosion and rust inhibitor to obtain the aqueous acrylic finish paint, the film forming additives are one or more of ethers and alcohol ester film forming substances.

In some embodiments, in the step of mixing resin, the water slurry, conventional additives, a film forming additive, a thickening agent, an anti-settling agent, distilled water and the mixed solution of the liquid corrosion and rust inhibitor to obtain the water-based acrylic finish paint, the anti-settling agent is one or more of fumed silica and organic bentonite, and the thickening agent is a polyurethane associative rheological additive.

In addition, the invention also provides a water-based acrylic finish paint which is prepared by the preparation method of any one of the preparation methods of the water-based acrylic finish paint.

The invention adopts the technical scheme that the method has the advantages that:

the preparation method of the water-based acrylic finish paint provided by the invention comprises the steps of mixing a liquid corrosion inhibition antirust agent, DMEA and PM, adjusting the pH value to 7.8-8.3, fully stirring to obtain a homogeneous-phase light yellow liquid, adding distilled water, stirring, standing to obtain a liquid corrosion inhibition antirust agent mixed solution, mixing, stirring and grinding water, a dispersing agent, a defoaming agent, bentonite and a pigment according to a certain mass ratio until the fineness is less than or equal to 10 mu m to obtain a water slurry, mixing a resin, the water slurry, a conventional auxiliary agent, a film-forming auxiliary agent, a thickening agent, an anti-settling agent, distilled water and the liquid corrosion inhibition antirust agent mixed solution according to a certain mass ratio to obtain the water-based acrylic finish paint, neutralizing, diluting and hydrolyzing the liquid corrosion inhibition antirust agent, applying the liquid slow-release antirust agent to the preparation of water-based acrylic acid, and using the liquid antirust agent to replace a powdery antirust pigment, not only can ensure the corrosion resistance, but also can achieve the purposes of light preservation and light extraction.

In addition, the preparation method of the water-based acrylic finish paint provided by the invention can be used for preparing a bottom surface matching system into a bottom surface integrating system, so that the risks of construction procedures and adhesive force are reduced, and compared with bottom surface integrating on the market, the preparation method of the water-based acrylic finish paint not only ensures the corrosion resistance, but also ensures the appearance requirement of high gloss.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The preparation method of the water-based acrylic finish paint provided by the invention comprises the following steps:

step S110: mixing the liquid corrosion inhibition antirust agent, DMEA and PM, adjusting the pH value to 7.8-8.3, fully stirring to obtain a homogeneous pale yellow liquid, adding distilled water, stirring, and standing to obtain a liquid corrosion inhibition antirust agent mixed solution.

Specifically, the mass ratio of the liquid corrosion and rust inhibitor, the DMEA, the PM and the distilled water is (50% -70%): (20-40%): (10% -20%) and (10% -20%).

It is understood that the above examples of the present invention have been conducted by subjecting the liquid rust inhibitor to the treatment of hydration and the solvent and pH screening treatment. And the emulsion breaking agent is successfully applied to a water-based acrylic acid system, and the risks of emulsion breaking and the like cannot be caused in the using process.

Step S120: the mass ratio of (10-20): (1-2): (0.1-0.5): (0.1-1): (20-30) mixing, stirring and grinding water, a dispersing agent, a defoaming agent, bentonite and a pigment until the fineness is less than or equal to 10 microns to obtain water slurry;

specifically, the dispersant is one or more of BYK-190, Zhanxin 6208 and BYK-194; the defoaming agent is one or a combination of BYK-011, BYK-015 and TEGO 901W. The pigment is titanium white or phthalocyanine green or phthalocyanine blue or ultramarine or iron yellow or lemon yellow.

Step S130: the mass ratio of (25-35): (40-60): (1-5): (1-15): (0.1-1): (0.1-1): (10-20): (3-10) mixing resin, the water slurry, a conventional auxiliary agent, a film forming auxiliary agent, a thickening agent, an anti-settling agent, distilled water and the liquid corrosion and rust inhibitor mixed solution to obtain the water-based acrylic finish paint.

Specifically, the resin is one or more combinations of acrylic resins, and the conventional auxiliary agent is one or more combinations of a water-based organic silicon defoamer, an amine neutralizer and a substrate wetting agent. The film-forming auxiliary agent is one or a combination of ethers and alcohol ester film-forming substances. The anti-settling agent is one or a combination of a plurality of gas-phase silicon dioxide and organic bentonite, the gas-phase silicon dioxide is Yingchuang A200 or Yingchuang 3600, the organic bentonite is Haimins LT and SD-2, the thickening agent is a polyurethane associative rheological additive, and the polyurethane associative thickening agent is Haimins R-299 or OMG0625 and the like.

According to the preparation method of the water-based acrylic finish, the liquid corrosion-inhibition antirust agent is subjected to neutralization, dilution and hydrolysis, and can be applied to a water-based system, the liquid slow-release antirust agent is applied to the preparation of the water-based acrylic acid, and the liquid antirust agent is used for replacing a powdery antirust pigment, so that the corrosion resistance can be ensured, and the purposes of light protection and light enhancement can be achieved.

In addition, the preparation method of the water-based acrylic finish paint provided by the invention can be used for preparing a bottom surface matching system into a bottom surface integrating system, so that the risks of construction procedures and adhesive force are reduced, and compared with bottom surface integrating on the market, the preparation method of the water-based acrylic finish paint not only ensures the corrosion resistance, but also ensures the appearance requirement of high gloss.

The following detailed description is given in conjunction with specific examples: