Real stone paint and its preparation method

Abstract

This invention provides a real stone paint and its preparation method, specifically relating to the field of coating technology. The real stone paint of this invention is composed of a base material and natural colored sand; the base material, by weight, includes 10-20 parts emulsion, 2.0-5.0 parts hydrophobically modified mesoporous silica, 3.0-6.0 parts nano-hollow ceramic microspheres, 1.0-3.0 parts polytetrafluoroethylene micropowder, 0.1-0.5 parts hydroxyethyl cellulose, 10-15 parts water, and 1.56-3.14 parts additives; the emulsion is an acrylic emulsion. This invention adds hydrophobically modified mesoporous silica to the base material, which has low hygroscopicity, preventing moisture from entering the interior of the real stone paint and improving its water resistance; moreover, its high specific surface area and high porosity can adsorb hydrophilic substances in the real stone paint, reducing the migration of hydrophilic substances to the surface of the real stone paint film and causing rain streaks. The various raw materials in the base material work together to improve the water resistance and weather resistance of the real stone paint.

Description

Technical Field

[0001] This invention relates to the field of coating technology, and in particular to a real stone paint and its preparation method. Background Technology

[0002] Stone-like paint is a synthetic resin emulsion sand-textured architectural coating made from natural colored sand as aggregate, synthetic resin emulsion as base material, and supplemented with various additives. Because it can relatively well mimic the texture and decorative effect of stone, and has advantages such as corrosion resistance, good acid and alkali resistance, and low price, it is highly favored by builders in the exterior wall decoration projects of high-rise buildings. Although stone-like paint has many advantages, its poor water resistance remains one of the most common paint film defects in current technology. Furthermore, after exposure to harsh natural conditions such as wind, sun, and rain, the coating may experience chalking and peeling, especially in areas with large temperature differences between day and night, where chalking and peeling will be accelerated.

[0003] In existing technologies, to improve the water resistance of stone-like paint, water-conducting substances, such as wood fibers, are added to the paint formulation along with carefully selected additives and hydrophobic materials. While wood fibers have good moisture-transfer capabilities, they also have a high water absorption capacity, capable of absorbing 6-8 times their own weight in water. During the slow release of this moisture, the initial water resistance of the stone-like paint is poor, resulting in severe whitening. Furthermore, the long-term high moisture content of the stone-like paint affects its bonding strength, accelerating powdering and peeling. Therefore, adding wood fibers is actually detrimental to improving the water resistance of the stone-like paint.

[0004] In view of this, the present invention is hereby proposed. Summary of the Invention

[0005] One of the objectives of this invention is to provide a real stone paint that aims to solve at least one of the aforementioned technical problems in the prior art.

[0006] The second objective of this invention is to provide a method for preparing real stone paint.

[0007] In order to achieve the above-mentioned objectives of the present invention, the following technical solution is adopted:

[0008] The first aspect of the present invention provides a real stone paint composed of a base material and natural colored sand;

[0009] The base material, by weight, comprises 10 to 20 parts emulsion, 2.0 to 5.0 parts hydrophobically modified mesoporous silica, 3.0 to 6.0 parts nano-hollow ceramic microspheres, 1.0 to 3.0 parts polytetrafluoroethylene micro powder, 0.1 to 0.5 parts hydroxyethyl cellulose, 10 to 15 parts water, and 1.56 to 3.14 parts additives.

[0010] The emulsion is an acrylic emulsion.

[0011] Further, the base material, by weight, comprises 12 to 15 parts emulsion, 2.0 to 4.0 parts hydrophobically modified mesoporous silica, 3.5 to 5.5 parts nano-hollow ceramic microspheres, 1.0 to 1.5 parts polytetrafluoroethylene micro powder, 0.1 to 0.3 parts hydroxyethyl cellulose, 10 to 15 parts water, and 1.56 to 3.14 parts additives.

[0012] Furthermore, the additives include at least one of bactericides, dispersants, wetting agents, pH adjusters, defoamers, antifreeze agents, film-forming aids, and thickeners.

[0013] Preferably, the additives include bactericides, dispersants, wetting agents, pH adjusters, defoamers, antifreeze agents, film-forming aids, and thickeners.

[0014] Preferably, the additives include, by weight, 0.1 to 0.3 parts of bactericide, 0.1 to 0.3 parts of dispersant, 0.05 to 0.15 parts of wetting agent, 0.08 to 0.15 parts of pH adjuster, 0.08 to 0.12 parts of defoamer, 0.5 to 1.0 parts of antifreeze, 0.6 to 1.0 parts of film-forming aid, and 0.08 to 0.16 parts of thickener.

[0015] Furthermore, the base material accounts for 25 wt.% to 45 wt.% of the real stone paint, with the remainder being natural colored sand.

[0016] Furthermore, the particle size of the natural colored sand includes at least two of the following: 30 mesh, 50 mesh, 80 mesh, and 120 mesh.

[0017] Preferably, the mass ratio of 30 mesh, 50 mesh, 80 mesh and 120 mesh is 0-20:20-50:50-80:0-10.

[0018] Furthermore, the particle size of the hydrophobically modified mesoporous silica is 50 nm to 100 nm.

[0019] Preferably, the pore size of the mesoporous silica modified with hydrophobicity is 2nm to 30nm.

[0020] The second aspect of the present invention provides a method for preparing the real stone paint, wherein the natural colored sand is added to the base material and mixed evenly to obtain the real stone paint.

[0021] Furthermore, the mixing time is 5 min to 10 min.

[0022] Preferably, the mixing method is stirring.

[0023] Preferably, the stirring speed is 800 rpm to 1200 rpm.

[0024] Furthermore, the preparation method of the base material includes the following steps:

[0025] A. Under stirring conditions, water, optional bactericide, optional dispersant, optional wetting agent and optional defoamer are added to a container and mixed evenly by first stirring to obtain mixture a;

[0026] B. Add the hydroxyethyl cellulose to the mixture a and stir for a second time until completely dispersed. Then add an optional pH adjuster and stir for a third time until dispersed. Continue to add hydrophobically modified mesoporous silica, nano-hollow ceramic microspheres and polytetrafluoroethylene micro powder and stir for a fourth time until homogeneous to obtain mixture b.

[0027] C. Add the acrylic emulsion to mixture b and stir until homogeneous. Continue to add optional defoamer, optional antifreeze and optional film-forming aid and stir until homogeneous. Finally, add optional thickener and stir until homogeneous to obtain the base material.

[0028] Furthermore, the rotation speed of the first stirring is 800 rpm to 1200 rpm.

[0029] Preferably, the second stirring speed is 900 rpm to 1000 rpm.

[0030] Preferably, the rotation speed of the third stirring or the fifth stirring is independently 1000 rpm to 1200 rpm.

[0031] Preferably, the rotation speed of the fourth stirring is 1300 rpm to 1600 rpm.

[0032] Preferably, the viscosity of the base material is 90KU to 120KU.

[0033] Preferably, the fineness of the mixture b is ≤60μm.

[0034] Compared with the prior art, the present invention has at least the following beneficial effects:

[0035] The stone-like paint provided by this invention incorporates hydrophobically modified mesoporous silica into its base material. This silica has low hygroscopicity and prevents moisture from penetrating the interior of the stone-like paint, thus improving its water resistance. Furthermore, its high specific surface area and high porosity allow it to adsorb hydrophilic substances in the stone-like paint, reducing their migration to the coating surface and preventing rain streaks. Polytetrafluoroethylene (PTFE) micropowder possesses excellent chemical stability, corrosion resistance, and low permeability, further enhancing the water resistance and weather resistance of the stone-like paint. Both the nano-hollow ceramic microspheres and the hydrophobically modified mesoporous silica have hollow structures, improving the thermal insulation effect of the stone-like paint. The synergistic effect of the various raw materials in the base material enhances the water resistance and weather resistance of the stone-like paint.

[0036] The method for preparing real stone paint provided by this invention is simple, highly mechanized, and efficient, making it suitable for large-scale industrial production. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] In the following, the terms “comprising,” “having,” and their cognates, which may be used in various embodiments of the invention, are intended only to indicate a particular feature, number, step, operation, element, component, or combination thereof, and should not be construed as excluding, firstly, the presence of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, or adding the possibility of one or more features, numbers, steps, operations, elements, components, or combinations thereof.

[0039] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0040] The first aspect of the present invention provides a real stone paint composed of a base material and natural colored sand;

[0041] The base material, by weight, comprises 10 to 20 parts emulsion, 2.0 to 5.0 parts hydrophobically modified mesoporous silica, 3.0 to 6.0 parts nano-hollow ceramic microspheres, 1.0 to 3.0 parts polytetrafluoroethylene micro powder, 0.1 to 0.5 parts hydroxyethyl cellulose, 10 to 15 parts water, and 1.56 to 3.14 parts additives.

[0042] The emulsion is an acrylic emulsion.

[0043] The stone-like paint provided by this invention incorporates hydrophobically modified mesoporous silica into its base material. This silica has low hygroscopicity and prevents moisture from penetrating the interior of the stone-like paint, thus improving its water resistance. Furthermore, its high specific surface area and high porosity allow it to adsorb hydrophilic substances in the stone-like paint, reducing their migration to the coating surface and preventing rain streaks. Polytetrafluoroethylene (PTFE) micropowder possesses excellent chemical stability, corrosion resistance, and low permeability, further enhancing the water resistance and weather resistance of the stone-like paint. Both the nano-hollow ceramic microspheres and the hydrophobically modified mesoporous silica have hollow structures, improving the thermal insulation effect of the stone-like paint. The synergistic effect of the various raw materials in the base material enhances the water resistance and weather resistance of the stone-like paint.

[0044] Hydrophobic mesoporous silica is prepared by a chemical reaction between hydrophilic mesoporous silica and active silanes. Unlike the original hydrophilic silica, hydrophobic fumed silica cannot be wetted by water, and the amount of water absorbed is significantly lower than that of the original hydrophilic fumed silica. When added to stone paint, the hydrophobic mesoporous silica can effectively prevent water from entering the stone paint on the film surface, thereby improving the water resistance of the stone paint.

[0045] Hydrophobic mesoporous silica consists of spherical particles with a standard ordered porosity. Its highly ordered mesoporous structure gives it excellent chemical and thermal stability. Adding it to stone-like paint can effectively improve its weather resistance, mainly through enhanced resistance to artificial weathering and improved bonding strength with the wall.

[0046] The polytetrafluoroethylene (PTFE) micropowder described in this invention is a highly dispersed granular material with excellent chemical corrosion resistance, high and low temperature resistance, and outstanding lubricity. In stone-like paint, it can further enhance the water resistance and weather resistance of the paint, while also improving its application properties.

[0047] Nano-hollow ceramic microspheres have a small particle size and low oil absorption, making them an ideal filler for stone paint and improving its hiding power. Moreover, both nano-hollow ceramic microspheres and hydrophobically modified mesoporous silica have hollow structures, which reduces the thermal conductivity of the stone paint, giving it excellent thermal insulation properties.

[0048] Nano-hollow ceramic microspheres are inorganic metal oxides with a melting point greater than 1450 degrees Celsius. They do not decompose at high temperatures and are not easily deformed. Adding them to stone paint can improve the flame retardant properties of the stone paint.

[0049] It should be noted that the natural colored sand mentioned in this invention includes white sand.

[0050] Further, the base material, by weight, comprises 12 to 15 parts emulsion, 2.0 to 4.0 parts hydrophobically modified mesoporous silica, 3.5 to 5.5 parts nano-hollow ceramic microspheres, 1.0 to 1.5 parts polytetrafluoroethylene micro powder, 0.1 to 0.3 parts hydroxyethyl cellulose, 10 to 15 parts water, and 1.56 to 3.14 parts additives.

[0051] Typical, but not limiting, in stone-like paint, the weight percentage of acrylic emulsion can be, for example, 10 parts, 12 parts, 14 parts, 16 parts, 18 parts, or 20 parts, or any value within the range of 10 to 20 parts; the weight percentage of hydrophobically modified mesoporous silica can be, for example, 2.0 parts, 2.5 parts, 3.0 parts, 3.5 parts, 4.0 parts, 4.5 parts, or 5.0 parts, or any value within the range of 2.0 to 5.0 parts; the weight percentage of nano-hollow ceramic microspheres can be, for example, 3 parts, 4 parts, 5 parts, or 6 parts, or any value within the range of 3.0 to 6.0 parts; and the weight percentage of polytetrafluoroethylene micropowder can be, for example, 1.0 part, 1.5 parts, etc. The weight percentages of hydroxyethyl cellulose can be, for example, 0.1, 0.2, 0.3, 0.4, or 0.5 parts, or any value within the range of 0.1 to 0.5 parts; the weight percentages of water can be, for example, 10, 11, 12, 13, 14, or 15 parts, or any value within the range of 10 to 15 parts; the weight percentages of additives can be, for example, 1.56, 2.01, 2.26, 2.89, 3.04, or 3.14 parts, or any value within the range of 1.56 to 3.14 parts.

[0052] Furthermore, the additives include at least one of bactericides, dispersants, wetting agents, pH adjusters, defoamers, antifreeze agents, film-forming aids, and thickeners.

[0053] Preferably, the additives include bactericides, dispersants, wetting agents, pH adjusters, defoamers, antifreeze agents, film-forming aids, and thickeners.

[0054] Preferably, the additives include, by weight, 0.1 to 0.3 parts of bactericide, 0.1 to 0.3 parts of dispersant, 0.05 to 0.15 parts of wetting agent, 0.08 to 0.15 parts of pH adjuster, 0.08 to 0.12 parts of defoamer, 0.5 to 1.0 parts of antifreeze, 0.6 to 1.0 parts of film-forming aid, and 0.08 to 0.16 parts of thickener.

[0055] Typically, but not limitingly, in the additives, the bactericide can be present in weight parts of, for example, 0.1 parts, 0.15 parts, 0.2 parts, 0.25 parts, or 0.3 parts, or any value within the range of 0.1 parts to 0.3 parts; the dispersant can be present in weight parts of, for example, 0.1 parts, 0.15 parts, 0.2 parts, 0.25 parts, or 0.3 parts, or any value within the range of 0.1 parts to 0.3 parts; the wetting agent can be present in weight parts of, for example, 0.05 parts, 0.10 parts, 0.12 parts, or 0.15 parts, or any value within the range of 0.05 parts to 0.15 parts; the pH adjuster can be present in weight parts of, for example, 0.08 parts, 0.1 parts, 0.12 parts, 0.13 parts, or 0.15 parts, or any value within the range of 0.08 parts to 0.15 parts. The weight percentages of the following components are allowed: Defoamer: 0.08, 0.09, 0.1, 0.11, or 0.12 parts, or any value within the range of 0.08 to 0.12 parts; Antifreeze: 0.5, 0.6, 0.7, 0.8, 0.9, or 1.0 parts, or any value within the range of 0.5 to 1.0 parts; Film-forming aid: 0.6, 0.7, 0.8, 0.9, or 1.0 parts, or any value within the range of 0.6 to 1.0 parts; Thickener: 0.08, 0.1, 0.12, 0.14, or 0.16 parts, or any value within the range of 0.08 to 0.16 parts.

[0056] Furthermore, the base material accounts for 25 wt.% to 45 wt.% of the real stone paint, with the remainder being natural colored sand.

[0057] Typical, but not limiting, the proportion of the base material in the stone-like paint can be, for example, 25 wt.%, 30 wt.%, 35 wt.%, 40 wt.%, or 45 wt.%, or any value within the range of 25 wt.% to 45 wt.%.

[0058] Furthermore, the particle size of the natural colored sand includes at least two of the following: 30 mesh, 50 mesh, 80 mesh, and 120 mesh.

[0059] Preferably, the mass ratio of 30 mesh, 50 mesh, 80 mesh and 120 mesh is 0-20:20-50:50-80:0-10.

[0060] Typical, but not limiting, mass ratios of 30 mesh, 50 mesh, 80 mesh, and 120 mesh can be, for example, 10:20:50:5, 20:20:50:5, 10:50:50:5, 20:50:50:5, 10:20:80:5, 20:20:80:5, 10:20:50:10, or 20:20:50:10, or any value within the range of 0 to 20:20 to 50:50 to 80:0 to 10. It should be noted that "0" refers to colored sand that does not include this particle size.

[0061] Furthermore, the particle size of the hydrophobically modified mesoporous silica is 50 nm to 100 nm.

[0062] Preferably, the pore size of the mesoporous silica modified with hydrophobicity is 2nm to 30nm.

[0063] Within the aforementioned particle size or pore size range, hydrophobically modified mesoporous silica, with its high specific surface area and high porosity, can adsorb hydrophilic substances precipitated in stone paint, reducing their migration to the surface of the stone paint film, thereby improving the rain streaks problem of stone paint.

[0064] The second aspect of the present invention provides a method for preparing the real stone paint, wherein the natural colored sand is added to the base material and mixed evenly to obtain the real stone paint.

[0065] Furthermore, the mixing time is 5 min to 10 min.

[0066] Preferably, the mixing method is stirring.

[0067] Preferably, the stirring speed is 800 rpm to 1200 rpm.

[0068] Furthermore, the preparation method of the base material includes the following steps:

[0069] A. Under stirring conditions, water, optional bactericide, optional dispersant, optional wetting agent and optional defoamer are added to a container and mixed evenly by first stirring to obtain mixture a;

[0070] B. Add the hydroxyethyl cellulose to the mixture a and stir for a second time until completely dispersed. Then add an optional pH adjuster and stir for a third time until dispersed. Continue to add hydrophobically modified mesoporous silica, nano-hollow ceramic microspheres and polytetrafluoroethylene micro powder and stir for a fourth time until homogeneous to obtain mixture b.

[0071] C. Add the acrylic emulsion to mixture b and stir until homogeneous. Continue to add optional defoamer, optional antifreeze and optional film-forming aid and stir until homogeneous. Finally, add optional thickener and stir until homogeneous to obtain the base material.

[0072] The method for preparing real stone paint provided by this invention is simple, highly mechanized, and efficient, making it suitable for large-scale industrial production.

[0073] Furthermore, the rotation speed of the first stirring is 800 rpm to 1200 rpm.

[0074] Preferably, the second stirring speed is 900 rpm to 1000 rpm.

[0075] Preferably, the rotation speed of the third stirring or the fifth stirring is independently 1000 rpm to 1200 rpm.

[0076] Preferably, the rotation speed of the fourth stirring is 1300 rpm to 1600 rpm.

[0077] Preferably, the viscosity of the base material is 90KU to 120KU.

[0078] Preferably, the fineness of the mixture b is ≤60μm.

[0079] The present invention is further illustrated below with specific embodiments and comparative examples. However, it should be understood that these embodiments are merely for illustrative purposes and should not be construed as limiting the invention in any way. Unless otherwise specified, the raw materials used in the embodiments and comparative examples of the present invention were carried out under conventional conditions or conditions recommended by the manufacturer. Reagents or instruments used, unless otherwise specified, are all commercially available conventional products.

[0080] The specifications and manufacturers of the raw materials used in the following examples and comparative examples are shown in Table 1 below.

[0081] Table 1

[0082]

[0083]

[0084] Example

[0085] Table 2 is the formula table of the real stone paint provided in the examples.

[0086] Table 2

[0087]

[0088] Comparative Example

[0089] Table 3 shows the formulation of the stone-like paint provided for the comparative example.

[0090] Table 3

[0091]

[0092] The above-described embodiments and comparative examples were prepared according to the following preparation method:

[0093] 1. Turn on the mixer and adjust the speed to 700 rpm. Add water, bactericide, dispersant, wetting agent and first defoamer into the mixing tank in sequence.

[0094] 2. Slowly add hydroxyethyl cellulose in a dust-like manner, adjust the speed to 1000 rpm, and stir for 10 minutes until completely dispersed.

[0095] 3. Slowly add the pH adjuster, adjust the speed to 1200 rpm, and stir for 8 minutes until the cellulose viscosity is fully expressed.

[0096] 4. Adjust the speed to 1500 rpm, add hydrophobically modified mesoporous silica, nano hollow ceramic microspheres and polytetrafluoroethylene micro powder, disperse at high speed for 30 min until uniform, and measure the fineness ≤60μm.

[0097] 5. Adjust the rotation speed to 1200 r / min, add acrylic emulsion, and stir until uniform.

[0098] 6. Add the second defoamer, antifreeze and film-forming aid in sequence, and stir until uniform.

[0099] 7. Slowly add the thickener, keeping the rotation speed at 1200 rpm, and test the viscosity while adding;

[0100] 8. After adjusting the viscosity to 90-120 KU, the base material is obtained. It should be sealed and stored for later use.

[0101] 9. Pour the base material into the stone paint dispersion kettle, turn on the stirrer, adjust the speed to 1200 rpm, then pour the white sand of the formula into the dispersion kettle in sequence, stir until it is evenly dispersed, and obtain the stone paint.

[0102] Test case

[0103] The stone-like paints obtained in the examples and comparative examples were tested according to the methods specified in JG / T 24-2018 "Synthetic Resin Emulsion Sand-like Architectural Coatings", including drying time, workability, low-temperature stability, thermal storage stability, water absorption, water resistance, alkali resistance, coating temperature change resistance, stain resistance, bond strength, artificial weathering resistance, and flexibility.

[0104] The thermal insulation effect of the stone-like paint was tested according to the thermal insulation temperature difference test method in JG / T 235-2008 "Reflective Thermal Insulation Coatings for Buildings". A 5mm calcium silicate board was selected as the coating substrate, and the thermal insulation temperature difference between the stone-like paint and the blank board was tested.

[0105] The real stone paint was sprayed onto the calcium silicate board with primer applied by roller. The sprayed sample was cured for 8 hours at a temperature of 25±2℃ and a relative humidity of RH50%. Then, half of the sample was immersed in water for 16 hours. After immersion, the initial water resistance was tested.

[0106] The results are shown in Tables 4 and 5 below.

[0107] Table 4

[0108]

[0109]

[0110] Table 5

[0111]

[0112]

[0113] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A type of stone-like paint, characterized in that, It consists of a base material accounting for 25wt.%~45wt.% and the remainder being natural colored sand; The base material, by weight, comprises 10 to 20 parts emulsion, 2.0 to 5.0 parts hydrophobically modified mesoporous silica, 3.0 to 6.0 parts nano-hollow ceramic microspheres, 1.0 to 3.0 parts polytetrafluoroethylene micro powder, 0.1 to 0.5 parts hydroxyethyl cellulose, 10 to 15 parts water, and 1.56 to 3.14 parts additives. The emulsion is an acrylic emulsion; The hydrophobic modified mesoporous silica has a particle size of 50 nm to 100 nm. The mass ratio of the natural colored sand with particle sizes of 30 mesh, 50 mesh, 80 mesh and 120 mesh is 0~20:20~50:50~80:0~10.

2. The real stone paint according to claim 1, characterized in that, The base material, by weight, comprises 12 to 15 parts emulsion, 2.0 to 4.0 parts hydrophobically modified mesoporous silica, 3.5 to 5.5 parts nano-hollow ceramic microspheres, 1.0 to 1.5 parts polytetrafluoroethylene micro powder, 0.1 to 0.3 parts hydroxyethyl cellulose, 10 to 15 parts water, and 1.56 to 3.14 parts additives.

3. The stone-like paint according to claim 1, characterized in that, The additives include at least one of bactericides, dispersants, wetting agents, pH adjusters, defoamers, antifreeze agents, film-forming aids, and thickeners.

4. The real stone paint according to claim 1, characterized in that, The additives include bactericides, dispersants, wetting agents, pH adjusters, defoamers, antifreeze agents, film-forming aids, and thickeners.

5. The real stone paint according to claim 1, characterized in that, The additives include, by weight, 0.1 to 0.3 parts of bactericide, 0.1 to 0.3 parts of dispersant, 0.05 to 0.15 parts of wetting agent, 0.08 to 0.15 parts of pH adjuster, 0.08 to 0.12 parts of defoamer, 0.5 to 1.0 parts of antifreeze, 0.6 to 1.0 parts of film-forming aid, and 0.08 to 0.16 parts of thickener.

6. The real stone paint according to any one of claims 1 to 5, characterized in that, The pore size of the hydrophobic modified mesoporous silica is 2nm~30nm.

7. A method for preparing the real stone paint according to any one of claims 1 to 6, characterized in that, The natural colored sand is added to the base material and mixed evenly to obtain the real stone paint.

8. The preparation method according to claim 7, characterized in that, The mixing time is 5 min to 10 min.

9. The preparation method according to claim 7, characterized in that, The mixing method is stirring.

10. The preparation method according to claim 9, characterized in that, The stirring speed is 800 rpm to 1200 rpm.

11. The preparation method according to claim 7, characterized in that, The preparation method of the base material includes the following steps: A. Under stirring conditions, water, bactericide, dispersant, wetting agent and defoamer are added to the container and mixed evenly by the first stirring to obtain mixture a; B. Add the hydroxyethyl cellulose to the mixture a and stir for a second time until completely dispersed. Then add the pH adjuster and stir for a third time until dispersed. Continue to add hydrophobically modified mesoporous silica, nano hollow ceramic microspheres and polytetrafluoroethylene micro powder and stir for a fourth time until uniform to obtain mixture b. C. Add the acrylic emulsion to the mixture b and stir until uniform. Continue to add defoamer, antifreeze and film-forming aid and stir until uniform. Finally, add thickener and stir until uniform to obtain the base material.

12. The preparation method according to claim 11, characterized in that, The first stirring speed is 800 rpm to 1200 rpm.

13. The preparation method according to claim 11, characterized in that, The second stirring speed is 900 rpm to 1000 rpm.

14. The preparation method according to claim 11, characterized in that, The rotation speed of the third or fifth stirring is independently 1000 rpm to 1200 rpm.

15. The preparation method according to claim 11, characterized in that, The speed of the fourth stirring is 1300 rpm to 1600 rpm.

16. The preparation method according to claim 11, characterized in that, The viscosity of the base material is 90KU~120KU.

17. The preparation method according to claim 11, characterized in that, The fineness of the mixture b is ≤60μm.

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