A liquid stone-like paint coating and its preparation method

Abstract

This application relates to the technical field of coatings, specifically disclosing a liquid stone-like paint coating and its preparation method. The liquid stone-like paint coating disclosed in this application includes a base paint and a granulation liquid; the base paint includes a dispersant, defoamer, antifreeze, film-forming aid, wetting agent, titanium dioxide, kaolin, cellulose, pH adjuster, emulsion, preservative, a protective colloid A aqueous solution, quartz sand, and a thickener. The protective colloid A aqueous solution is composed of Grid GS, BYK S482, and water in a weight ratio of (1-10):(1-10):(85-95); in the granulation liquid, the protective colloid B aqueous solution is composed of BYK S482, GRAS-B, and water in a weight ratio of (0.1-0.5):(0.5-3):(85-95). Using the technical solution disclosed in this application, a liquid stone-like paint coating with uniform color speckle performance, high quality, and good stability can be obtained.

Description

Technical Field

[0001] This application relates to the technical field of coatings, specifically to a liquid stone-like paint coating and its preparation method. Background Technology

[0002] The existing multi-color coatings in China are produced from three semi-finished products. The production process is relatively complex, and the preparation and production time is long and difficult, resulting in low production efficiency and high production costs.

[0003] In addition, the poor production stability of coatings for multi-colored products makes it difficult to control the color dots in the finished product, resulting in poor uniformity. Furthermore, the viscosity of the coating changes significantly after cold treatment or hot storage, which greatly affects the use of the coating and makes it impossible to achieve the expected results. Summary of the Invention

[0004] To improve the stability of multicolor coatings, this application provides a liquid stone-like paint coating and its preparation method.

[0005] In a first aspect, this application provides a liquid stone-like paint coating, comprising a base paint and a granulating liquid in a weight ratio of (5-7):(1-3);

[0006] The base paint comprises the following components in parts by weight: 20-30 parts deionized water, 0.2-0.3 parts dispersant, 0.2-0.5 parts defoamer, 1.0-2.0 parts antifreeze, 1.0-2.0 parts film-forming aid, 0.2-0.3 parts wetting agent, 1-5 parts titanium dioxide, 1-8 parts kaolin, 0.8-2.0 parts cellulose, 0.2-1 parts pH adjuster, 20-35 parts emulsion, 0.1-0.5 parts preservative, 5-10 parts aqueous solution of protective colloid A, 30-38 parts quartz sand, and 0.1-0.5 parts thickener; wherein the aqueous solution of protective colloid A is composed of GS mesh, BYK S482, and water in a weight ratio of (1-10):(1-10):(85-95).

[0007] The granulation solution comprises the following components in parts by weight: 20-30 parts deionized water, 1.5-8 parts protective colloid B aqueous solution, 0.1-0.5 parts special suspending agent, 30-45 parts emulsion, 1-3 parts film-forming aid, 0.1-0.5 parts pH adjuster, 0.1-0.5 parts preservative, 1-3 parts propylene glycol, and 0.1-0.5 parts defoamer; the protective colloid B aqueous solution is composed of BYK S482, GRAS-B, and water in a weight ratio of (0.1-0.5):(0.5-3):(85-95).

[0008] This application utilizes the above-mentioned raw material composition and dosage as the base paint and granulation liquid, and specifically selects the aqueous solution of protective colloid A in the base paint and the aqueous solution of protective colloid B in the granulation liquid. The resulting liquid stone paint coating has uniform color speckle performance, a high pass rate, and good viscosity stability.

[0009] This application improves the traditional three-component formula of multi-color products, "base paint + granulation liquid + continuous phase", into a two-component formula, "base paint + granulation liquid", by using compounding and fusion technology. Suitable protective colloids, suspending agents, and emulsions are selected and combined in the formula to ensure stable storage. By pre-producing single-color dots using these two components, only the single-color dots need to be mixed upon receiving an order to produce the finished product. This significantly accelerates production speed, improves production efficiency and product stability, and reduces production costs.

[0010] Preferably, in the aqueous solution of the protective adhesive A, the content of the mesh GS is greater than the content of the BYK S482.

[0011] In one specific implementation, the weight ratio of Mesh GS, BYK S482, and water in the protective adhesive A aqueous solution can be 1:1:85, 5:1:90, 10:1:95, 1:5:85, 5:5:90, 10:5:95, 1:10:85, 5:10:90, or 10:10:95.

[0012] In some specific implementations, the weight ratio of the protective adhesive A aqueous solution of GS mesh, BYK S482, and water can also be (1-5):1:85, (5-10):1:90, 10:(1-5):95, (1-5):5:85, (5-10):5:90, 10:(1-5):95, (1-5):10:85, (5-10):10:90, 10:(1-5):95.

[0013] Experimental analysis shows that controlling the weight ratio of GS, BYK S482, and water in the protective adhesive A aqueous solution provided in this application within the above-mentioned range can effectively improve the stability of the liquid stone paint coating; when the content of GS is greater than the content of BYK S482, the stability of the liquid stone paint coating can be further improved.

[0014] Preferably, the cellulose is selected from any one or more of EHM 500 cellulose ether and HHBR 250 cellulose ether.

[0015] Preferably, the quartz sand has a particle size of 200-300 mesh.

[0016] Preferably, in the base paint and the granulation liquid, the emulsion is selected from any one of Showa 4765 emulsion, Badaf 8399 emulsion, and Badaf 8300 emulsion.

[0017] Preferably, in the base paint, the emulsion is Showa 4765 emulsion and Badifu 8300 emulsion in a weight ratio of (45-55):(3-7).

[0018] Preferably, in the granulation solution, the emulsion is Showa 4765 emulsion and Badfu 8399 emulsion in a weight ratio of (25-33):(1-3).

[0019] Secondly, this application provides a method for preparing the above-mentioned liquid stone-like paint coating, comprising the following steps:

[0020] At a rotation speed of 800-1000 r / min, dispersant, defoamer, antifreeze, film-forming aid, wetting agent, titanium dioxide, kaolin, and cellulose are added sequentially to water. The mixture is stirred and dispersed for 5-10 min. A pH adjuster is added, and the rotation speed is adjusted to 1400-1600 r / min. The mixture is then dispersed at high speed for 30-45 min. Then, emulsion, preservative, aqueous solution of protective colloid A, quartz sand, and thickener are added. The mixture is stirred and dispersed at a rotation speed of 800-1000 r / min for 8-13 min to obtain the base paint.

[0021] At a rotation speed of 800-1000 r / min, the protective colloid B aqueous solution and the special suspending agent are added to the water in sequence, and the mixture is stirred and dispersed for 5-10 min. The rotation speed is then adjusted to 1400-1600 r / min, and the mixture is stirred for 50-70 min. Then, the emulsion, film-forming aid, pH adjuster, preservative, propylene glycol, and defoamer are added, and the mixture is stirred and dispersed for 3-8 min to obtain the granulation solution.

[0022] The granulation liquid is added to the base paint and stirred until uniform. The mixture is then granulated using a shearing screen granulator with a shearing speed of 300-800 r / min to obtain the liquid stone paint coating. The feeding rate of the granulation liquid, based on the weight percentage of the liquid stone paint coating, is 10%-25% / min.

[0023] Based on the raw material formulation of the base paint and granulation liquid, this application designs specific preparation process parameters. Through the mutual coordination of raw materials and processes, the prepared liquid stone paint coating has good granulation, high uniformity and pass rate of color dots, and excellent stability.

[0024] Preferably, the shearing speed of the shearing screen granulator is 400-600 r / min.

[0025] In one specific implementation, the shearing speed of the shearing screen granulator is 300 r / min, 400 r / min, 500 r / min, 600 r / min, or 800 r / min.

[0026] In some specific implementations, the shearing speed of the shearing screen granulator is 300-400 r / min, 300-500 r / min, 300-600 r / min, 400-500 r / min, 400-800 r / min, 500-600 r / min, 500-800 r / min, or 600-800 r / min.

[0027] Experimental analysis shows that this application selects a shearing screen granulator with a shearing speed of 300-800 r / min for shearing granulation. This avoids the brittleness of the liquid stone paint coating due to excessively high shearing speed, thus ensuring both production speed and product quality. In a specific embodiment, the feeding rate of the granulation liquid, based on the weight percentage of the liquid stone paint coating, can be 10% / min, 12% / min, 18% / min, 21% / min, or 25% / min.

[0028] In some specific embodiments, the feeding rate of the granulation liquid, based on the weight percentage of the liquid stone paint coating, can also be 10%-12% / min, 10%-18% / min, 10%-21% / min, 12%-18% / min, 12%-21% / min, 12%-25% / min, 18%-21% / min, 18%-25% / min, or 21%-25% / min.

[0029] Experimental analysis shows that, in the process of preparing liquid stone paint, this application controls the feeding rate of the granulation liquid within the above-mentioned range, which further effectively improves the stability of the liquid stone paint.

[0030] Preferably, the feeding rate of the protective adhesive A aqueous solution is 0.5%-2.5% / min, based on the weight percentage of the base paint.

[0031] Preferably, the feeding rate of the thickener, based on the weight percentage of the base paint, is 0.1%-0.55% / min.

[0032] In summary, the technical solution of this application has the following effects:

[0033] This application improves the traditional three-component "base paint + granulation liquid + continuous phase" of multi-color products into two components "base paint + granulation liquid" through compounding and fusion technology. It uses specific types and amounts of raw materials as base paint and granulation liquid, and selects appropriate protective colloids, suspending agents and emulsions for combination. The resulting liquid stone paint coating has uniform color point performance, high pass rate and good viscosity stability.

[0034] The liquid stone-like paint coating provided in this application can be produced using a pre-production method, where single-color dots are made in advance and then mixed to produce the finished product. This reduces the time and difficulty of material preparation and production, greatly speeds up production, improves production efficiency and product stability, and reduces production costs. Detailed Implementation

[0035] The present application will be further described in detail below with reference to embodiments, comparative examples and performance test results. These embodiments should not be construed as limiting the scope of protection claimed in this application.

[0036] Preparation Example

[0037] Preparation Examples 1-4

[0038] Preparation Examples 1-4 each provide a base paint.

[0039] The difference between the above preparation examples is that the amounts of each component in the base paint are different, as shown in Table 1.

[0040] The specific preparation method of the base paint in the above preparation example is as follows:

[0041] At a rotation speed of 900 rpm, dispersant, defoamer, antifreeze, film-forming aid, wetting agent, titanium dioxide, kaolin, and cellulose were added sequentially to the water and stirred for 8 minutes. A pH adjuster was then added. The rotation speed was adjusted to 1500 rpm, and high-speed dispersion was carried out for 35 minutes. Then, an emulsion (composed of Showa 4765 emulsion and Badifu 8300 emulsion in a weight ratio of 47:5), preservative, protective colloid A aqueous solution (composed of grid GS, BYK S482, and water in a weight ratio of 5:1:90), quartz sand, and thickener were added, and the rotation speed was adjusted to 900 rpm. After stirring and dispersing for 10 minutes, the base paint is obtained; wherein, the feeding rate of the protective colloid A aqueous solution is 2 g / min (based on the weight percentage of the base paint, the feeding rates of Preparation Examples 1-4 are 1.55% / min, 1.50% / min, 0.99% / min, and 0.90% / min, respectively), and the feeding rate of the thickener is 0.3 g / min (based on the weight percentage of the base paint, the feeding rates of Preparation Examples 1-4 are 0.23% / min, 0.22% / min, 0.15% / min, and 0.14% / min, respectively).

[0042] Table 1 shows the dosage of each component in the base paints used in Examples 1-4.

[0043]

[0044]

[0045] Preparation Example 5-11

[0046] Preparation Examples 5-11 each provide a base paint.

[0047] The difference between the above preparation example and preparation example 1 is that the type of the protective adhesive A aqueous solution is different, as shown below.

[0048] In Preparation Example 5: The aqueous solution of protective colloid A was composed of mesh GS and water in a weight ratio of 6:90.

[0049] In Preparation Example 6: The aqueous solution of protective colloid A was composed of BYK S482 and water in a weight ratio of 6:90.

[0050] In Preparation Example 7: The aqueous solution of protective adhesive A was composed of BYK S482, BYK S482 and water in a weight ratio of 5:1:90.

[0051] In Preparation Example 8: The aqueous solution of protective colloid A was composed of mesh GS, BYK S482 and water in a weight ratio of 5:0.5:90.

[0052] In Preparation Example 9: The aqueous solution of protective adhesive A was composed of mesh GS, BYK S482 and water in a weight ratio of 1:5:90.

[0053] In Preparation Example 10: The aqueous solution of protective colloid A was composed of mesh GS, BYK S482 and water in a weight ratio of 5:10:90.

[0054] In Preparation Example 11: The aqueous solution of protective colloid A was composed of mesh GS, BYK S482 and water in a weight ratio of 10:5:90.

[0055] The types and amounts of the remaining raw materials and the preparation method of the base paint in the above preparation example are the same as those in Preparation Example 1.

[0056] Preparation Examples 12-16

[0057] Preparation Examples 12-16 each provide a granulation solution.

[0058] The difference between the above preparation examples lies in the composition of the aqueous solution of protective adhesive B, as shown in Table 2.

[0059] The specific method for preparing the granulation solution in the above preparation example is as follows:

[0060] At a rotation speed of 900 r / min, 4 g of protective colloid B aqueous solution and 0.2 g of suspending agent TEROGEL KW were added sequentially to 28 g of water and stirred for 8 min. The rotation speed was then adjusted to 1500 r / min and stirred for 60 min. Then, 37 g of emulsion (a mixture of Showa 4765 emulsion and Badifu 8399 emulsion in a weight ratio of 30:2), 2 g of film-forming aid Texanol, 0.3 g of pH adjuster AMP-95, 0.25 g of preservative P150, 2 g of propylene glycol, and 0.3 g of defoamer SN-DEFOAMER 154 were added and stirred for 5 min to obtain the granulation solution.

[0061] Table 2 Composition of the aqueous solution of protective colloid B in Preparation Examples 12-16

[0062]

[0063] Example

[0064] Examples 1-8

[0065] Examples 1-8 each provide a liquid stone-like paint coating.

[0066] The difference between the above embodiments is that the sources of the base paint and the granulation liquid are different, as shown in Table 3.

[0067] The preparation method of the liquid stone-like paint coating in the above embodiments is as follows:

[0068] Add 60g of granulation liquid to 100g of tinted base paint at a feeding rate of 11.25g / min (the feeding rate of the granulation liquid is 18% / min based on the weight percentage of the liquid stone paint coating). Stir and mix evenly. Use a shearing screen granulator with a shearing speed of 500r / min (equipment from Beijing Laines New Material Technology Co., Ltd., patent CN213528548U, an experimental water-coated sand granulation device) to shear and granulate, with the colored dots size being 5-10mm, to obtain the liquid stone paint coating.

[0069] Table 3. Sources of base paint and granulation solution in Examples 1-8

[0070] Example Source of base paint Source of granulation solution 1 Preparation Example 1 Preparation Example 12 2 Preparation Example 2 Preparation Example 12 3 Preparation Example 3 Preparation Example 12 4 Preparation Example 9 Preparation Example 12 5 Preparation Example 10 Preparation Example 12 6 Preparation Example 11 Preparation Example 12 7 Preparation Example 1 Preparation Example 13 8 Preparation Example 1 Preparation Example 14

[0071] Examples 9-11

[0072] Examples 9-11 each provide a liquid stone-like paint coating.

[0073] The difference between the above embodiments and Embodiment 1 is that the feeding rate of the granulation liquid is as follows.

[0074] In Example 9: the feeding rate of the granulation liquid was 6.25 g / min (based on the weight percentage of the liquid stone paint coating, the feeding rate of the granulation liquid was 10% / min).

[0075] In Example 10: the feeding rate of the granulation liquid was 7.5 g / min (based on the weight percentage of the liquid stone paint coating, the feeding rate of the granulation liquid was 12% / min).

[0076] In Example 11: the feeding rate of the granulation liquid was 15.6 g / min (based on the weight percentage of the liquid stone paint, the feeding rate of the granulation liquid was 25% / min).

[0077] In the above embodiments, the types and amounts of raw materials used in the liquid stone paint coating are the same as those in Example 1, and the rest of the preparation methods for the liquid stone paint coating are the same.

[0078] Comparative Example

[0079] Comparative Examples 1-7

[0080] Comparative Examples 1-7 each provide a liquid stone-like paint coating.

[0081] The difference between the above comparative examples and Example 1 is that the sources of the base paint and granulation liquid are different, as shown in Table 4.

[0082] Table 4 shows the sources of base paint and granulation solution in Comparative Examples 1-7.

[0083] Comparative Example Source of base paint Source of granulation solution 1 Preparation Example 4 Preparation Example 12 2 Preparation Example 5 Preparation Example 12 3 Preparation Example 6 Preparation Example 12 4 Preparation Example 7 Preparation Example 12 5 Preparation Example 8 Preparation Example 12 6 Preparation Example 1 Preparation Example 15 7 Preparation Example 1 Preparation Example 16

[0084] In the above comparative examples, the amounts of each raw material used in the liquid stone paint coating and the preparation method of the liquid stone paint coating in Example 1 are the same.

[0085] Comparative Examples 8-9

[0086] Comparative Examples 8 and 9 each provide a liquid stone-like paint coating.

[0087] The difference between the above comparative example and Example 1 is the feeding rate of the granulation solution, as shown below.

[0088] In Comparative Example 8: the feeding rate of the granulation liquid was 5 g / min (based on the weight percentage of the liquid stone paint, the feeding rate of the granulation liquid was 8% / min).

[0089] In Comparative Example 9: the feeding rate of the granulation liquid was 17.5 g / min (based on the weight percentage of the liquid stone paint, the feeding rate of the granulation liquid was 28% / min).

[0090] The types and amounts of raw materials used in the above comparative examples and in Example 1, as well as the remaining preparation methods of the liquid stone paint coating, are all the same.

[0091] Comparative Example 10

[0092] Comparative Example 10 provides a coating.

[0093] The specific preparation method of the coating in this comparative example is as follows:

[0094] The base paint was derived from Preparation Example 1; the granulation solution was derived from Preparation Example 12.

[0095] Preparation of continuous phase: 40g deionized water, 0.3g bentonite, 55g silicone-acrylic emulsion, 3g film-forming aid, 1g antifreeze, 0.1g preservative, 0.1g pH adjuster and 0.5g thickener;

[0096] Preparation of coating: Add 60g of granulation liquid to 100g of tinted base paint at a feeding rate of 11.25g / min (the feeding rate of granulation liquid is 18% / min based on the weight percentage of the coating), stir and mix evenly, and granulate using a dispersing disc with a particle size of 5-10mm; then add 20g of continuous phase to the granulated material and stir and mix evenly to obtain the coating.

[0097] Performance testing

[0098] (1) Routine testing: The performance of the water-based paint in the example was tested in accordance with the standards of HG / T4343-2012 "Water-based Multicolor Architectural Coatings" and GB / T 1728-1979 "Determination of Drying Time of Paint Film and Putty Film".

[0099] Test results: The water-based paints with speckled patterns in Examples 1-11 showed no abnormalities in alkali resistance and water resistance, and had a washability of 8500-9500 cycles.

[0100] (2) Pass rate of colored dots

[0101] The water-based paint with colored dots prepared in the examples and comparative examples was sprayed using a 5mm diameter stone paint spray gun onto a 1 square meter flat plate. The spraying air pressure was 0.6 MPa. The pass rate and average size of the colored dots within 1 square meter were tested. The pass criteria were that the colored dots were uniform in size, round and full, and without any trailing problems.

[0102] (3) Coating viscosity

[0103] The test was conducted in accordance with the GB 9269-88 standard, "Determination of Viscosity of Architectural Coatings - Stormer Viscometer Method".

[0104] The coating was placed in a 200mL glue container, the lid was tightened and sealed, and then placed in a constant temperature drying oven. It was stored for 30 days under the following conditions: low temperature refrigeration (4±2℃), room temperature (25±2℃), and high temperature heat storage (50±2℃). The viscosity of the coating was then tested to examine its stability.

[0105] Test results are shown in Table 5.

[0106] Table 5. Detection results of Examples 1-11 and Comparative Examples 1-10

[0107]

[0108]

[0109] Based on the test results in Table 5, it can be seen that the specific raw material composition and dosage of the base paint and granulation liquid provided in this application, along with the specific selection of the protective colloid A aqueous solution in the base paint and the protective colloid B aqueous solution in the granulation liquid, resulted in a color TV qualification rate of over 90.5% for the prepared liquid stone-like paint coating. The average size of the colored dots was 5-10 mm, exhibiting good uniformity. The viscosity of the coating was within the range of 68.5-71.6 KU, and the viscosity change was minimal after refrigeration, room temperature, and high-temperature storage for a certain period. The above test results demonstrate that the coating formulation and preparation method provided in this application yielded a liquid stone-like paint coating with uniform colored dot performance, high quality, and good stability.

[0110] By comparing the test results of Examples 1-3 with those of Comparative Example 1, it was found that the content of emulsion and quartz sand in the base paint of Comparative Example 1 was relatively low, resulting in poor performance of the prepared liquid stone paint coating. In contrast, the present application reasonably controlled the amount of each raw material in the base paint, and the obtained liquid stone paint coating had excellent viscosity stability performance.

[0111] By comparing the test results of Examples 1, 4-6 and Comparative Examples 2-5, this application specifically selected a protective colloid A aqueous solution composed of grid GS, BYK S482 and water in a weight ratio of (1-10):(1-10):(85-95) to effectively improve the stability of liquid stone paint coatings; furthermore, in the protective colloid A aqueous solution provided by this application, the content of grid GS is greater than the content of BYK S482.

[0112] By comparing the test results of Examples 1, 7-8 and Comparative Examples 6-7, this application specifically selected a granulation solution of Bik S482, GRAS-B, and water in a weight ratio of (0.1-0.5):(0.5-3):(85-95) to further and effectively improve the stability of liquid stone paint coatings.

[0113] By comparing the test results of Examples 1, 9-11 and Comparative Examples 8-9, it was found that in the process of preparing liquid stone paint coating, the feeding rate of the granulation liquid was 10%-25% / min based on the weight percentage of the liquid stone paint coating, which further effectively improved the stability of the liquid stone paint coating.

[0114] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A liquid stone-like paint coating, characterized in that, Includes a base paint and granulation liquid in a weight ratio of (5-7):(1-3); The base paint comprises the following components in parts by weight: 20-30 parts deionized water, 0.2-0.3 parts dispersant, 0.2-0.5 parts defoamer, 1.0-2.0 parts antifreeze, 1.0-2.0 parts film-forming aid, 0.2-0.3 parts wetting agent, 1-5 parts titanium dioxide, 1-8 parts kaolin, 0.8-2.0 parts cellulose, 0.2-1 parts pH adjuster, 20-35 parts emulsion, 0.1-0.5 parts preservative, 5-10 parts aqueous solution of protective colloid A, 30-38 parts quartz sand, and 0.1-0.5 parts thickener; the aqueous solution of protective colloid A is a mixture of 5:1:(85-90) mesh GS, BYK S482, and water, or a mixture of 1:5:(85-90) mesh GS, BYK S482, and water; The granulation solution comprises the following components in parts by weight: 20-30 parts deionized water, 1.5-8 parts protective colloid B aqueous solution, 0.1-0.5 parts special suspending agent, 30-45 parts emulsion, 1-3 parts film-forming aid, 0.1-0.5 parts pH adjuster, 0.1-0.5 parts preservative, 1-3 parts propylene glycol, and 0.1-0.5 parts defoamer; the protective colloid B aqueous solution is composed of BYK S482, GRAS-B, and water in a weight ratio of (0.1-0.5):(0.5-3):(85-95). The preparation method of the liquid stone-like paint coating includes the following steps: The granulation liquid is added to the base paint and stirred until uniform. The mixture is then granulated using a shearing screen granulator with a shearing speed of 300-800 r / min to obtain the liquid stone paint coating. The feeding rate of the granulation liquid, based on the weight percentage of the liquid stone paint coating, is 10%-18% / min.

2. The liquid stone-like paint coating according to claim 1, characterized in that, The cellulose is selected from any one or more of EHM 500 cellulose ether and HHBR 250 cellulose ether.

3. The liquid stone-like paint coating according to claim 1, characterized in that, The quartz sand has a particle size of 200-300 mesh.

4. The liquid stone-like paint coating according to claim 1, characterized in that, In the base paint and the granulation liquid, the emulsion is selected from any one of Showa 4765 emulsion, Badifu 8399 emulsion, and Badifu 8300 emulsion.

5. The liquid stone-like paint coating according to claim 4, characterized in that, In the base paint, the emulsion is Showa 4765 emulsion and Badifu 8300 emulsion in a weight ratio of (45-55):(3-7).

6. The liquid stone-like paint coating according to claim 4, characterized in that, In the granulation solution, the emulsion is Showa 4765 emulsion and Badfu 8399 emulsion in a weight ratio of (25-33):(1-3).

7. The method for preparing the liquid stone-like paint coating according to any one of claims 1-6, characterized in that, Includes the following steps: At a rotation speed of 800-1000 r / min, dispersant, defoamer, antifreeze, film-forming aid, wetting agent, titanium dioxide, kaolin, and cellulose are added sequentially to water. The mixture is stirred and dispersed for 5-10 min. A pH adjuster is added, and the rotation speed is adjusted to 1400-1600 r / min. The mixture is then dispersed at high speed for 30-45 min. Then, emulsion, preservative, aqueous solution of protective colloid A, quartz sand, and thickener are added. The mixture is stirred and dispersed at a rotation speed of 800-1000 r / min for 8-13 min to obtain the base paint. At a rotation speed of 800-1000 r / min, the protective colloid B aqueous solution and the special suspending agent are added to the water in sequence, and the mixture is stirred and dispersed for 5-10 min. The rotation speed is then adjusted to 1400-1600 r / min, and the mixture is stirred for 50-70 min. Then, the emulsion, film-forming aid, pH adjuster, preservative, propylene glycol, and defoamer are added, and the mixture is stirred and dispersed for 3-8 min to obtain the granulation solution. The granulation liquid is added to the base paint and stirred until uniform. The mixture is then granulated using a shearing screen granulator with a shearing speed of 300-800 r / min to obtain the liquid stone paint coating. The feeding rate of the granulation liquid, based on the weight percentage of the liquid stone paint coating, is 10%-18% / min.

8. The method for preparing the liquid stone-like paint coating according to claim 7, characterized in that, The feeding rate of the protective adhesive A aqueous solution, based on the weight percentage of the base paint, is 0.5%-2.5% / min.

9. The method for preparing the liquid stone-like paint coating according to claim 7, characterized in that, The feeding rate of the thickener, based on the weight percentage of the base paint, is 0.1%-0.55% / min.

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