Texture art paint based on amphoteric metal system as well as preparation method and application of texture art paint

Abstract

The invention discloses texture art paint based on an amphoteric metal system. The texture art paint comprises 20-30 parts of an aqueous solution containing an amphoteric metal compound with the mass concentration of 5-10%; 55-65 parts of a basic paint component; and 10-20 parts of a continuous phase component. The invention also discloses a preparation method and application of the compound. The texture art paint of the amphoteric metal system prepared by the invention can be effectively complexed with the polysaccharide-based polymer through the solubility and coordination of the amphoteric metal compound to form stable water dispersible color dots.

Description

Technical Field

[0001] The invention belongs to the field of coatings, and in particular relates to a textured artistic paint based on an amphoteric metal system and a preparation method and application thereof. Background Art

[0002] Artistic coatings integrate decoration, beauty and protection. They have been widely used in buildings and decorative walls and are favored by consumers. The two commonly used systems are texture coating systems and colorful coating systems. The texture coating system mainly uses colored sand and gravel base materials, uses film-forming acrylic emulsion as a connecting material, and combines different construction processes to prepare coatings with imitation stone effects and concave and convex textures; the colorful coating system mainly uses cellulose-containing paint and silicate protective glue to form color dots dispersed in water, and combines the dispersions of different colored dots together. These prepared color dot dispersions are also called dispersed phases, and then adds film-forming polyacrylic emulsion as a continuous phase. In the film-forming process, these color dots are combined together to form a colorful effect. This colorful effect also has a stone-like effect. After the color dots are formed and dried, they are basically a plane system. This method is usually called the "water-in-water" method; if you need to increase the texture effect, you need to add sand and gravel base materials to achieve the purpose. This method is usually called the "water-in-sand" method.

[0003] The existing technical solutions, whether through the "water-in-water" or "water-in-sand" method, require the use of a silicate called "protective glue" to achieve the effect that the color dots can be stably dispersed in water. This silicate has a flaky "house of cards" structure in the water phase. The preparation of this "protective glue" requires a lot of energy consumption. Many technicians in this field have been looking for a low-energy and easy-to-obtain method to achieve a similar effect.

[0004] In the process of preparing artistic coatings with texture effects, we see that if the texture effect is to be achieved, whether it is a pure texture effect or a colorful system texture effect, sand and gravel need to be added to provide it.

[0005] Patent CN117106345A discloses a water-based sand multi-color paint and its preparation method and application, including 10-20 parts of multi-color protective glue and 80-90 parts of color-tuning base paint; the multi-color protective glue used is organic silane-modified lithium magnesium silicate. Patent CN116355471A discloses a method for preparing a pure color water-based art paint and its construction process, which requires a large amount of sand and gravel to provide a textured artistic effect.

[0006] The sand and gravel needed to achieve the stone-like texture effect consumes a large amount of mineral resources, and the mineral reserves and uniformity of natural colored sand are not easy to control. Although this problem can be solved by dyeing, it still leads to the consumption of mineral resources. In addition, the textured paint prepared with sand and gravel is usually thicker, which brings more waste to the later renovation and increases the pressure on the environment.

[0007] Therefore, it is necessary to prepare artistic coatings with texture and avoiding the use of sand and stone through a feasible technical method, so as to achieve a more environmentally friendly and easy-to-renovate effect. Summary of the invention

[0008] The main purpose of the present invention is to provide a textured artistic paint based on an amphoteric metal system and a preparation method and application thereof.

[0009] By cross-linking amphoteric metal substances with bio-based sugar-based polymers, a stable color dot dispersion can be formed. By adding emulsion to these color dot dispersions as a "continuous phase", the coating prepared can show a colorful effect and have a bumpy texture after drying.

[0010] A textured art paint based on an amphoteric metal system, comprising:

[0011] 20-30 parts of an aqueous solution of an amphoteric metal compound having a mass concentration of 5-10%;

[0012] 55-65 parts of base paint component;

[0013] 10-20 parts of continuous phase components;

[0014] The base paint components are calculated by weight as follows:

[0015] 5-40 parts water;

[0016] 0.1-0.3 parts of ammonium polyacrylate dispersant;

[0017] 1.0-5.0 parts of titanium dioxide;

[0018] 2.5-5.0 parts of kaolin;

[0019] 0.5-1.5 parts of bio-based sugar-based polymers;

[0020] 0.1-0.3 parts of mineral oil defoamer;

[0021] 0.05-0.5 parts of amphoteric metal compounds;

[0022] 15-25 parts of polyacrylic acid emulsion;

[0023] 20-35 parts of calcium carbonate;

[0024] 0.2-0.3 parts of fungicide;

[0025] 0.3-1 part of film-forming aid;

[0026] 0.1-0.5 parts of pH adjuster;

[0027] The continuous phase components are calculated by weight as follows:

[0028] 55-65 parts of polyacrylic acid emulsion;

[0029] 0.2-0.3 parts of fungicide;

[0030] 30-40 parts water;

[0031] 2.5-3.5 parts of film-forming aid;

[0032] 1-2 parts of ethylene glycol or propylene glycol;

[0033] 0.1-0.2 parts of mineral oil defoamer;

[0034] 0.1-0.5 parts of thickener.

[0035] In a preferred embodiment of the present invention, the amphoteric metal compound is a metal salt, chloride, bromide or hydroxide of a metal having a certain solubility under both acidic and alkaline conditions.

[0036] The metal salt is sulfate, carbonate, nitrate, sodium salt or ammonium salt.

[0037] The metallic compound is preferably any one or more of sodium aluminate, sodium metaaluminate, zirconium oxychloride, zirconium sulfate, ammonium zinc carbonate, ammonium zirconium carbonate or ammonium aluminum sulfate.

[0038] Sodium aluminate and zirconium carbonate are most preferred.

[0039] In a preferred embodiment of the present invention, the bio-based sugar-based polymer is any one or more of xanthan gum, guar gum, dextran, cellulose or starch, preferably 0.3-1 part of xanthan gum or guar gum.

[0040] A method for preparing a textured artistic paint based on an amphoteric metal system comprises mixing various components to obtain the textured artistic paint based on the amphoteric metal system.

[0041] The preferred ratio of the three is 25:60:15.

[0042] The invention discloses an application of a textured artistic paint based on an amphoteric metal system, wherein the application is applied to a paint surface of a building or a decorative wall.

[0043] The beneficial effects of the present invention are:

[0044] First, the textured art paint of the amphoteric metal system prepared by the present invention can be effectively complexed with the polysaccharide-based polymer to form stable water-dispersible color dots through the solubility and coordination of the amphoteric metal compounds.

[0045] Second, the textured artistic paint of the amphoteric metal system prepared in the present invention can form a textured concave-convex colorful artistic effect after drying without adding sand and gravel.

[0046] Third, the textured art paint of the amphoteric metal system prepared in the present invention adopts readily available amphoteric metal compounds and utilizes the technical solution of their complexing effect. Without adding silicate "protective glue" and sand and gravel, it can obtain colorful artistic effects and its texture, and has excellent environmental protection and artistic effects. DETAILED DESCRIPTION

[0047] If not otherwise specified, as described in the present invention, each preferred solution is combined with other preferred solutions to form a new technical solution. Due to limited space, the combined technology is not described in detail, however, all technical solutions combined with each other should be considered to have been clearly described in the present invention.

[0048] The stabilization effect of the color dots is achieved by the complexation of amphoteric metals with water-soluble sugar-based polymers, and the concave and convex texture effect is maintained after the film is formed and dried.

[0049] In the technical solution of the present invention, a stable color dot dispersion can be obtained without using a silicate (such as lithium magnesium silicate, etc.) "protective glue", which is achieved through the complexation of amphoteric metals.

[0050] The following examples are used to illustrate the process and composition of the present invention. These examples are helpful for those skilled in the art to understand the present invention. However, the present invention is not limited to these examples.

[0051] Embodiment 1:

[0052] The water-based amphoteric metal system textured art paint in this example includes 25 parts of amphoteric metal aqueous solution component A; 60 parts of base paint component B; and 15 parts of continuous phase component C.

[0053] (1) Preparation of component A:

[0054] Dissolve 2.5 g of sodium aluminate in 97.5 g of deionized water to obtain component A of the amphoteric metal aqueous solution.

[0055] (2) Preparation of component B: base paint

[0056] Take 35 grams of deionized water, add 0.25 grams of ammonium polyacrylate dispersant, then add 0.5 grams of NN-dimethylethanolamine to adjust the pH to 9.5-11.0, add 1.0 grams of guar gum, and disperse at a high speed of 2000-300 rpm until the guar gum is completely dissolved; then add 5 grams of titanium dioxide, 28 grams of 800 mesh calcium carbonate, 4.5 grams of kaolin, and 0.2 grams of mineral oil defoamer, and disperse at a high speed of 2000-300 rpm for 30 minutes.

[0057] Then reduce the stirring speed to 400-600 rpm, add 24.5 g of polyacrylic acid emulsion 3728 (Puwei Company), 1 g of dodecanol ester film-forming aid, 0.2 g of Kathon fungicide (1.5% content), 0.3 g of 35% zirconium carbonate aqueous solution, and continue stirring for 45 minutes to obtain base paint component B.

[0058] (3) Preparation of component C: continuous phase

[0059] 62 g of polyacrylic acid emulsion 3708 (Puwei Company), 33 g of deionized water, 2.0 g of lauryl ester film-forming aid, 2 g of propylene glycol, 0.3 g of kason fungicide (1.5% content), 0.3 g of mineral oil defoamer, and 0.3 g of H-350 thickener (Puwei Company) were stirred at 400-600 rotation speed to obtain continuous phase C.

[0060] (4) Preparation of textured art paint

[0061] 25 grams of component A and 60 grams of component B were mixed, and the cutting points were performed at a stirring rate of 200 revolutions. After stirring evenly, a water-based color dot dispersion was obtained. Then, 15 grams of component C was added and stirred evenly to obtain a textured art paint.

[0062] Embodiment 2:

[0063] The preparation of component A and component C is the same as in Example 1.

[0064] Component B: Preparation of black and red dots

[0065] Preparation of black dots: Add 0.5% of 40% carbon black paste to component B in Example 1.

[0066] Preparation of red dots: Add 2.5% of 75% iron red paste to component B in Example 1.

[0067] Then, a colorful textured artistic paint was prepared in the same manner as in Example 1.

[0068] Embodiment 3:

[0069] The preparation process is the same as that of Example 2, except that component A uses sodium metaaluminate instead of sodium aluminate.

[0070] Embodiment 4:

[0071] The preparation process is the same as that of Example 3, except that zirconium oxychloride aqueous solution is used in component B instead of zirconium carbonate.

[0072] Embodiment 5:

[0073] The preparation process is the same as that of Example 2, except that zinc carbonate is used in component B instead of zirconium carbonate.

[0074] Various tests were performed on the above-prepared Examples 1-5, and the results are shown in Table 1:

[0075] Hot storage color bleeding test: The prepared textured art paint Examples 1-5 were placed in a 50°C constant temperature box and left for 15 days to observe whether there was any color bleeding.

[0076] Water resistance test:

[0077] The prepared Examples 1-5 were sprayed on cement boards, and the spraying thickness of the dry film was controlled to be 150 um. Then, the boards were placed at room temperature for 7 days after the year, and soaked in water for 24 hours to observe whether the color dots collapsed.

[0078] Initial water whitening resistance:

[0079] The prepared Examples 1-5 were sprayed on cement boards, and the spraying thickness of the dry film was controlled to be 150 um. Then, the boards were placed at room temperature for 24 hours, and then soaked in water for 24 hours to observe whether the colored dots turned white.

[0080] Table 1: Test results of textured art paint in Examples 1-5

[0081]

[0082] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in the field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A textured art paint based on an amphoteric metal system, characterized in that: include: 20-30 parts of an aqueous solution of an amphoteric metal compound having a mass concentration of 5-10%; 55-65 parts of base paint component; 10-20 parts of continuous phase components; The base paint components are calculated by weight as follows: 5-40 parts water; 0.1-0.3 parts of ammonium polyacrylate dispersant; 1.0-5.0 parts of titanium dioxide; 2.5-5.0 parts of kaolin; 0.5-1.5 parts of bio-based sugar-based polymers; 0.1-0.3 parts of mineral oil defoamer; 0.05-0.5 parts of amphoteric metal compounds; 15-25 parts of polyacrylic acid emulsion; 20-35 parts of calcium carbonate; 0.2-0.3 parts of fungicide; 0.3-1 part of film-forming aid; 0.1-0.5 parts of pH adjuster; The continuous phase components are calculated by weight as follows: 55-65 parts of polyacrylic acid emulsion; 0.2-0.3 parts of fungicide; 30-40 parts water; 2.5-3.5 parts of film-forming aid; 1-2 parts of ethylene glycol or propylene glycol; 0.1-0.2 parts of mineral oil defoamer; 0.1-0.5 parts of thickener.

2. The textured art paint based on an amphoteric metal system as claimed in claim 1, characterized in that: The amphoteric metal compound is a metal salt, chloride, bromide or hydroxide of a metal that has a certain solubility under both acidic and alkaline conditions.

3. The textured art paint based on an amphoteric metal system as claimed in claim 1, characterized in that: The bio-based sugar-based polymer is any one or more of xanthan gum, guar gum, dextran, cellulose or starch.

4. A method for preparing a textured art paint based on an amphoteric metal system as described in any one of claims 1 to 3, characterized in that: The invention comprises mixing the components uniformly to obtain the textured artistic paint based on the amphoteric metal system.

5. An application of a textured art paint based on an amphoteric metal system as described in any one of claims 1 to 3, characterized in that: The application is paint application on building or decorative wall.

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