CN114163887A - Environment-friendly single-component floor paint and preparation method thereof - Google Patents

Abstract

The invention relates to the technical field of water-based paint, and provides environment-friendly single-component floor paint which comprises 45-65% of base material, 2-6% of film-forming agent, 0.1-1% of neutralizing agent, 12-15% of water, 0.2-1% of dispersing agent, 0.2-1% of defoaming agent, 0.5-1% of thickening agent, 0.2-1% of wetting agent, 0.2-1% of anti-scratch auxiliary agent, 0.2-1% of anti-blocking agent, 0.2-1% of thixotropic agent and 16-30% of pigment and filler; the base material is self-crosslinking acrylic copolymer dispersion. Through the technical scheme, the problems of complex floor paint construction process, poor environment protection and low adhesive force in the prior art are solved.

Description

Environment-friendly single-component floor paint and preparation method thereof

Technical Field

The invention relates to the technical field of water-based coatings, in particular to an environment-friendly single-component floor paint and a preparation method thereof.

Background

The floor paint was invented in 1934 by Germany, mainly prepared from oil, tree materials, colors, solvents and the like, and mainly comprises decorative floor paint, heavy-duty anticorrosive floor paint, heavy-duty floor paint and the like. The floor paint is prepared by mixing, dissolving, dispersing and other production processes of various different substances. The floor paint has the characteristics of being bright, real, attractive, wear-resistant, waterproof, anticorrosive and the like.

At present, about 80 percent of domestic floor paint is solvent, and the proportion of low-pollution environment-friendly paint such as water-soluble, high-solid, solvent-free, powder paint and the like is very small. The low-pollution environment-friendly coating is the trend of the development of the current floor paint. With the increasing awareness of environmental protection, environmental regulations restricting Volatile Organic Compounds (VOCs) are issued in succession by many countries, and environmental protection coatings with water-based, solvent-free and high solid differentiation have become a necessary trend for coating development. With the environmental protection consciousness and the deep mind of the low-carbon life concept, the national economy is transformed to the low-carbon, environment-friendly and economical economy, the 'green' wind tide is blown and scraped to various industries of various departments of the national economy, the low-carbon, environment-friendly and healthy become a new direction for development and a new standard for measurement, and the green wind tide of the current coating industry is continuously upgraded. The oily floor paint takes an organic solvent as a dispersion medium, has high toxicity, is flammable and has strong pungent smell.

In addition, most floor paints on the market adopt bi-component epoxy, the paint preparation is carried out according to the proportion of A, B components, the construction difficulty of workers is increased, the epoxy floor paints are easy to yellow and discolor in places with serious sunshine exposure, the whole construction process is complex, the weather resistance is poor, and the epoxy floor paints are not suitable for outdoor use.

Disclosure of Invention

The invention provides an environment-friendly single-component floor paint and a preparation method thereof, and solves the problems of complex process, poor environment-friendly property and low adhesive force of the floor paint in the prior art.

The technical scheme of the invention is as follows:

an environment-friendly single-component floor paint comprises 45-65% of base material, 2-6% of film-forming agent, 0.1-1% of neutralizing agent, 12-15% of water, 0.2-1% of dispersing agent, 0.2-1% of defoaming agent, 0.5-1% of thickening agent, 0.2-1% of wetting agent, 0.2-1% of anti-scratch auxiliary agent, 0.2-1% of anti-blocking agent, 0.2-1% of thixotropic agent and 16-30% of pigment and filler; the base material is self-crosslinking acrylic copolymer dispersion.

As a further technical scheme, the antifoaming agent comprises an antifoaming agent 1NOPTAM 2154 and an antifoaming agent 2ST 2424.

As a further technical scheme, the scratch-resistant auxiliary agent is an aqueous wax dispersion 1197.

As a further technical scheme, the anti-blocking agent is Tego492 Digao.

As a further technical scheme, the film forming agent comprises a film forming agent 1 alcohol ester-12 and a film forming agent 2 dipropylene glycol butyl ether, and the mass ratio of the two is 1: 1-3.

As a further technical scheme, the neutralizing agent is a multifunctional amine assistant AMP-95.

As a further technical scheme, the dispersant is BYK-190.

As a further technical scheme, the thickening agent is a nonionic synergistic thickening agent RM-8W.

As a further technical scheme, the wetting agent is an organosilicon surfactant BYK-346.

As a further technical scheme, the thixotropic agent is magnesium aluminum silicate SHV.

As a further technical scheme, the pigment and filler comprise high-white barium sulfate and rutile titanium dioxide.

The invention also provides a preparation method of the environment-friendly single-component floor paint, which comprises the following steps:

s1, preparing materials according to the formula;

s2, adding a dispersing agent, a neutralizing agent, a defoaming agent 1, a pigment filler and a thixotropic agent into water, and uniformly dispersing to form a paint paste;

s3, grinding the paint paste;

s4, dispersing the ground paint paste, the base material, the scratch-resistant auxiliary agent, the anti-blocking agent, the film-forming auxiliary agent, the wetting agent and the defoaming agent 2, and adding the thickening agent to obtain the floor paint.

As a further technical scheme, in the step S3, grinding is carried out until the fineness is less than or equal to 20 mu m.

The invention has the beneficial effects that:

1. the base material adopted by the invention is high-hardness self-crosslinking acrylic copolymer dispersoid setaqa 6754 which is a single-component coating, the construction is simple and convenient, the weather resistance is excellent, and the prepared solid paint or varnish has high hardness, good gloss, chemical resistance and blocking resistance; the air-drying solid-color coating for the concrete floor has excellent chemical resistance and heat resistance, and the prepared floor paint can reach the physical and chemical properties of the oily bi-component epoxy floor paint such as hardness, wear resistance and the like under the addition of the auxiliary additive. In the system of the invention, the self-crosslinking acrylic copolymer dispersion also acts synergistically with the aqueous scratch-resistant auxiliary wax dispersion 1197, improving not only the abrasion resistance but also the impact resistance of the paint film. Compared with the constant water shinning XG-902 base material emulsion, when the addition amounts of the scratch resistance auxiliary agent and other auxiliary agents are the same, the constant water shinning XG-902 is adopted as the base material of the paint film, the hardness can only reach B to HB and is far lower than the 2H which can be reached by the paint film, the result of the wear resistance test is 0.8g, which is far lower than the wear resistance of the paint film prepared by adopting SETAQUA6754 as the base material.

2. The environment-friendly water-based floor paint disclosed by the invention uses water as a diluting solvent, and abandons the existing organic solvent as a dispersing medium.

3. The defoaming agent is NOPTAM 2154 and ST2424, wherein the NOPTAM 2154 is suitable for roller coating defoaming and ST2424 can rapidly break foam, the compatibility is good, and the two defoaming agents are added into a system step by step, so that the defoaming capability can be improved to the greatest extent, and the appearance, adhesive force and water resistance of a paint film are improved.

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 inventive step, are intended to be within the scope of the present invention.

Example 1

S1, batching: 45% of self-crosslinking acrylic copolymer dispersion (Zhanxin SETAQUA6754), 1% of alcohol ester-12 (American Istman), 3% of dipropylene glycol butyl ether, 950.1% of multifunctional amine assistant AMP-2, 12% of deionized water, 1% of dispersant BYK-190 (Germany bike), 1% of defoamer NOPTAM 21540.1, 2ST 24240.1% of defoamer, 1% of nonionic synergistic thickener RM-8W (Dow Rohm and Haas), 1% of silicone surfactant BYK-346 (Germany bike), 1% of aqueous wax dispersion 11971%, 1% of Tego492 (digao), 0.2% of aluminum magnesium polysilicate SHV, 15% of high barium sulfate, and 15% of rutile titanium dioxide;

s2, adding a dispersing agent, a multifunctional amine assistant, a defoaming agent 1, high-white barium sulfate, rutile titanium dioxide and magnesium aluminum polysilicate into water, and uniformly dispersing to form paint slurry;

s3, grinding the paint paste until the fineness is less than or equal to 20 mu m;

s4, dispersing the ground paint paste, the self-crosslinking acrylic copolymer dispersion, the aqueous wax dispersion 1197, the Digao Tego492, the alcohol ester-12, the dipropylene glycol butyl ether, the organic silicon surfactant and the defoaming agent 2, adding the nonionic synergistic thickening agent, and uniformly stirring to obtain the floor paint.

Example 2

Preparing materials: 60% of self-crosslinking acrylic copolymer dispersion (Zhanxin SETAQUA6754), 2.5% of alcohol ester-12 (American Istman), 2.5% of dipropylene glycol butyl ether, 0.5% of multifunctional amine assistant AMP-950.5%, 13% of deionized water, 0.4% of dispersant BYK-190 (Germany bike), 1% of defoamer NOPTAM 21540.2%, 2% of defoamer 2ST 24240.2%, 0.6% of nonionic synergistic thickener RM-8W (Dow Rohm and Haas), 0.3% of silicone surfactant BYK-346 (Germany bike), 0.25% of aqueous wax dispersion 11970.5%, 0.3% of Tego492 (Digao), 0.5% of aluminum magnesium polysilicate SHV, 10% of high-whiteness barium sulfate, 10% of rutile titanium dioxide

The preparation method is the same as that of example 1.

Example 3

Preparing materials: self-crosslinking acrylic copolymer dispersion (Zhanxin SETAQUA6754) 65%, alcohol ester-12 (Istman USA) 3%, dipropylene glycol butyl ether 1%, multifunctional amine adjuvant AMP-951, deionized water 15%, dispersant BYK-190 (bike Germany) 0.2%, defoamer 1NOPTAM 21540.5%, defoamer 2ST 24240.5%, nonionic synergistic thickener RM-8W (Dow Rohm and Haas) 0.5%, silicone surfactant BYK-346 (bike Germany) 0.2%, aqueous wax dispersion 11970.2%, Tego492 (diko) 0.1%, magnesium aluminum silicate SHV 1%, high-white barium sulfate 8%, rutile titanium dioxide 8%

The preparation method is the same as that of example 1.

Comparative example 1

In comparison with example 2, antifoam 1 was not added, but was replaced by an equivalent amount of antifoam 2, and antifoam 2 was added in two portions.

Comparative example 2

In contrast to example 2, the aqueous wax dispersion 1197 was not added, and an equivalent amount of water was used instead, and the corresponding preparation method was carried out without adding the aqueous wax dispersion 1197, and the rest was the same as in example 2.

Comparative example 3

Compared with the example 2, the addition amount of the defoaming agent 1 is 0.8%, the addition amount of the water is 12.4%, and the preparation method is the same as the example 2.

The paint films of the examples and comparative examples were tested as follows:

testing the appearance of the coating according to GB/T22374-2008 terrace coating materials;

testing the wear resistance according to a rotating rubber grinding wheel method for testing the wear resistance of GB/T1768-2006 color paint and varnish;

testing the hardness of the pencil according to GB/T6739;

impact properties were tested as specified in GB/T1732-1993;

carrying out artificial aging according to GB/T1865, and evaluating the result according to the GB/T1766;

performing adhesion test according to GB T8286;

water resistance was tested according to GB/T1733-1993.

TABLE 1 raw material composition of examples of the present invention and comparative examples

TABLE 2 examples and comparative examples Performance testing

In comparative example 1, no defoaming agent 1 is added, a large amount of bubbles are generated along with the back-and-forth rolling of the roller in the coating rolling process, and in comparative example 1 without defoaming agent 1, a large amount of bubbles are left on the surface of the paint film, so that the adhesion and the water resistance of the paint film are reduced, but in comparative example 3, the addition of too much defoaming agent 1 has no influence on the performance of the paint film, but causes the shrinkage cavity on the surface of the paint film, and influences the appearance effect. In the invention, the defoaming agent 1 and the defoaming agent 2 are required to be added respectively and used step by step, so that the performance of the paint film can meet the requirement.

The comparative example 2 is not added with the scratch resistant assistant aqueous wax dispersion 1197, the addition amount of the examples 1 and 2 is 0.5-1%, the test results show that the wear resistance is 0.03g, the addition amount of the example 3 is 0.2%, the wear resistance is reduced, but the comparative example 2 is not added with the scratch resistant assistant, the test result shows that the wear resistance is 0.50g, which is far lower than the requirement of the national standard of 0.05, the wear resistance of the paint film is reduced, the impact resistance of the paint film is reduced, the paint film does not crack or peel after impact, and the adhesive force is reduced. In the system of the invention, the self-crosslinking acrylic copolymer dispersion also serves as a new SETAQUA6754 and a scratch-resistant auxiliary aqueous wax dispersion 1197 to act synergistically, so that the abrasion resistance of a paint film is improved, and the impact resistance and the water resistance of the paint film are also improved.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An environment-friendly single-component floor paint is characterized by comprising 45-65% of base material, 2-6% of film forming agent, 0.1-1% of neutralizing agent, 12-15% of water, 0.2-1% of dispersing agent, 0.2-1% of defoaming agent, 0.5-1% of thickening agent, 0.2-1% of wetting agent, 0.2-1% of anti-scratch auxiliary agent, 0.2-1% of anti-blocking agent, 0.2-1% of thixotropic agent and 16-30% of pigment and filler; the base material is self-crosslinking acrylic copolymer dispersion.

2. The environment-friendly single-component floor paint according to claim 1, wherein the defoaming agent comprises defoaming agent 1NOPTAM 2154 and defoaming agent 2ST 2424.

3. The environment-friendly one-component floor paint according to claim 1, wherein the scratch resistant auxiliary agent is an aqueous wax dispersion 1197.

4. The environment-friendly single-component floor paint according to claim 1, wherein the anti-blocking agent is Digao Tego 492.

5. The environment-friendly single-component floor paint according to claim 1, wherein the film forming agent comprises a film forming agent 1 alcohol ester-12 and a film forming agent 2 dipropylene glycol butyl ether, and the mass ratio of the film forming agent 1 alcohol ester-12 to the film forming agent 2 dipropylene glycol butyl ether is 1: 1-3.

6. The environment-friendly one-component floor paint according to claim 1, wherein the neutralizing agent is multifunctional amine assistant AMP-95.

7. The environment-friendly single-component floor paint according to claim 1, wherein the dispersant is BYK-190.

8. The environment-friendly single-component floor paint according to claim 1, wherein the wetting agent is an organosilicon surfactant BYK-346.

9. The environment-friendly single-component floor paint according to claim 1, wherein the thixotropic agent is magnesium aluminum Silicate (SHV).

10. The preparation method of the environment-friendly single-component floor paint is characterized by comprising the following steps:

s1, preparing materials according to the formula;

s2, uniformly dispersing the dispersing agent, the neutralizing agent, the defoaming agent 1, the pigment and filler and the thixotropic agent to form a paint paste;

s3, grinding the paint paste;

s4, dispersing the ground paint paste, the base material, the scratch-resistant auxiliary agent, the anti-blocking agent, the film-forming auxiliary agent, the wetting agent and the defoaming agent 2, and adding the thickening agent to obtain the floor paint.