A protective glue solution, sand-containing stone color paint and a preparation method thereof

Abstract

The application relates to the technical field of paint, and particularly discloses a protective glue solution, a sand-containing hemp color stone paint and a preparation method of the sand-containing hemp color stone paint. The protective glue solution provided by the application comprises the following components in parts by weight: GRAS-B protective glue 1-10 parts, GT-R protective glue 3-7 parts, sodium carboxymethyl cellulose 1-3 parts and water 85-95 parts; further, the protective glue solution comprises the following components in parts by weight: GRAS-B protective glue 2-7 parts, GT-R protective glue 3-5 parts, sodium carboxymethyl cellulose 1.5-2.5 parts and water 85-95 parts. The application further provides the sand-containing hemp color stone paint prepared from the above protective glue solution and a preparation method of the sand-containing hemp color stone paint. The protective glue solution provided by the application has excellent toughness and hardness, the sand-containing hemp color stone paint prepared from the protective glue solution has the advantages of good spraying effect and long suspension storage time, and the color points are not easy to break during spraying.

Description

Technical Field

[0001] This application relates to the field of coating technology, specifically to a protective adhesive aqueous solution, a sand-containing granite coating, and a method for preparing the same. Background Technology

[0002] Stone-like paint is a thick exterior wall coating that closely resembles the decorative effect of marble and granite. It is mainly made from natural stone powder in various colors and is often used to create a stone-like effect on building exteriors. Stone-like paint has characteristics such as fire resistance, water resistance, acid and alkali resistance, and pollution resistance, which can effectively prevent the erosion of buildings by harsh external environments, thereby extending the life of buildings.

[0003] Stone-like coating is the most widely used type of imitation stone coating in China. It consists of a base paint, a granulating liquid, and a continuous phase. Currently, the main application method for stone-like coating is to spray it onto the surface of the object to be protected using a water-based sand spray gun or a real stone paint spray gun. However, when using a water-based sand spray gun, excessive air pressure can easily cause the colored dots of the stone-like coating to shatter due to its poor strength and toughness, resulting in a blurred surface and affecting the overall coating effect.

[0004] Therefore, obtaining a granite coating with excellent strength and toughness is a problem that urgently needs to be solved by those in the field. Summary of the Invention

[0005] To improve the strength and toughness of granite coatings, this application provides a protective adhesive aqueous solution, a sand-containing granite coating, and a method for preparing the same.

[0006] In a first aspect, this application provides a protective adhesive aqueous solution, which adopts the following technical solution:

[0007] An aqueous solution of a protective adhesive comprises the following components in parts by weight: 1-10 parts of GRAS-B protective adhesive, 3-7 parts of GT-R protective adhesive, 1-3 parts of sodium carboxymethyl cellulose, and 85-95 parts of water.

[0008] This application provides an aqueous solution of a protective adhesive prepared from GRAS-B protective adhesive, GT-R protective adhesive, and sodium carboxymethyl cellulose, etc. Through experimental research, this application found that by controlling the proportions of each component in the aqueous protective adhesive solution within the aforementioned range, the resulting sand-type granite-like coating exhibits excellent strength and toughness. The sprayed wall surface shows good simulation effects and uniform color point size, greatly improving the coating effect and reducing the problem of color bleeding.

[0009] The protective adhesive aqueous solution of this application contains GRAS-B protective adhesive, GT-R protective adhesive and sodium carboxymethyl cellulose. Through the interaction of the three, the obtained protective adhesive aqueous solution can crosslink well with the emulsion. When used in granite coatings, the crosslinked network formed by the protective adhesive and the emulsion can wrap the colored dots, which significantly improves the strength and toughness of the colored dots. As a result, the resulting sand-type granite coating does not break the colored dots during use, and the breakage rate can be reduced to 5% or less.

[0010] Optionally, the protective adhesive aqueous solution comprises the following components in parts by weight: 2-7 parts of GRAS-B protective adhesive, 3-5 parts of GT-R protective adhesive, 1.5-2.5 parts of sodium carboxymethyl cellulose, and 85-95 parts of water.

[0011] In some embodiments, the GRAS-B protective adhesive may be present in parts by weight of 2-3 parts, 2-5 parts, 2-7 parts, 3-5 parts, 3-7 parts, 3-10 parts, 5-7 parts, 5-10 parts, or 7-10 parts.

[0012] In one specific implementation, the GRAS-B protective adhesive may be present in 2, 3, 5, 7, or 10 parts by weight.

[0013] In some embodiments, the GRAS-B protective adhesive may be present in parts by weight of 2-3 parts, 2-5 parts, 2-7 parts, 3-5 parts, 3-7 parts, 3-10 parts, 5-7 parts, 5-10 parts, or 7-10 parts.

[0014] In one specific implementation, the GRAS-B protective adhesive may be in the following weight proportions: 2 parts, 3 parts, 5 parts, 7 parts, or 10 parts.

[0015] In some embodiments, the GT-R protective adhesive may be present in 3-4 parts, 3-5 parts, 4-5 parts, 4-7 parts, or 5-7 parts by weight.

[0016] In one specific implementation, the GT-R protective adhesive may be in the following proportions by weight: 3 parts, 4 parts, 5 parts, or 7 parts.

[0017] In some embodiments, the sodium carboxymethyl cellulose may be expressed in parts by weight of 1-1.5 parts, 1-2 parts, 1-2.5 parts, 1.5-2 parts, 1.5-2.5 parts, 1.5-3 parts, 2-2.5 parts, 2-3 parts, or 2.5-3 parts.

[0018] In one specific implementation, the sodium carboxymethyl cellulose may be expressed in parts by weight of 1 part, 1.5 parts, 2 parts, 2.5 parts, or 3 parts.

[0019] Optionally, the viscosity of the sodium carboxymethyl cellulose is 1000-3500 mPa·s.

[0020] In this application, experimental investigation revealed that when the viscosity of sodium carboxymethyl cellulose is too high, the resulting sand-containing granite-like coating has a short suspension storage time and poor strength, making it prone to chipping during spraying. Conversely, when the viscosity of sodium carboxymethyl cellulose is too low, the resulting sand-containing granite-like coating has poor toughness, leading to a high rate of chipping during spraying. Therefore, this application controls the viscosity of sodium carboxymethyl cellulose within the aforementioned range, thereby obtaining a sand-containing granite-like coating with a long storage time and a low chipping rate.

[0021] In some embodiments, the viscosity of the sodium carboxymethyl cellulose can be 500-1500 mPa·s, 500-2500 mPa·s, 500-3500 mPa·s, 1000-2500 mPa·s, 1000-3500 mPa·s, 1000-4500 mPa·s, 1500-3500 mPa·s, 1500-4500 mPa·s, or 2500-4500 mPa·s.

[0022] In one specific embodiment, the viscosity of the sodium carboxymethyl cellulose can also be 500-900 mPa·s, 1000-1500 mPa·s, 1500-2500 mPa·s, 2500-3500 mPa·s, or 3500-4500 mPa·s.

[0023] Secondly, this application provides a sand-containing granite coating.

[0024] A sand-containing granite coating, comprising a protective adhesive aqueous solution.

[0025] Optionally, the sand-containing granite coating further includes a continuous phase and a base paint; the continuous phase comprises the following components in parts by weight: 0.1-0.3 parts defoamer, 0.1-0.5 parts suspending agent, 1-10 parts antifreeze, 1-10 parts film-forming aid, 0.1-0.5 parts bactericide, 0.1-0.3 parts pH adjuster, 0.1-0.5 parts thickener, 20-50 parts emulsion, 40-60 parts quartz sand, and 20-50 parts water.

[0026] In this application, because quartz sand tends to settle in the continuous phase, resulting in poor system uniformity and suspension, this application addresses this issue by adding a suspending agent to the continuous phase, enabling the quartz sand to suspend well within it. Using this continuous phase to prepare sand-containing granite coatings extends the suspension and heat storage time of the coating and reduces the amount of coating consumed in subsequent spraying operations. In other words, a smaller amount of sand-containing granite coating is needed to ensure uniform and sufficient coverage of the quartz sand on the wall surface, avoiding the problem of undercoat showing through and uneven color development.

[0027] Optionally, the suspending agent is selected from one or more of CEKOL 4000, Auron AS200 and Grid 4700.

[0028] This application, through experimental investigation, found that there are differences in the performance of different types of suspending agents. CEKOL 4000 and Aorun AS200 are preferred as suspending agents for the continuous phase of sand-containing granite coatings, resulting in the best performance of the suspending agents.

[0029] Optionally, the base paint comprises the following components in parts by weight: 0.1-0.2 parts dispersant, 0.1-0.3 parts defoamer, 1-2 parts antifreeze, 1-2 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, 1.0-2.0 parts pH adjuster, 30-50 parts emulsion, 0.1-0.5 parts preservative, 5-10 parts 10% protective colloid aqueous solution, 0.1-0.5 parts thickener, and 30-50 parts water.

[0030] Thirdly, this application provides a method for preparing a sand-containing granite coating.

[0031] A method for preparing a sand-containing granite coating includes the following steps: preparing a protective colloid aqueous solution: adding GRAS-B protective colloid and GT-R protective colloid to water at a stirring speed of 800-1000 rpm and stirring for 20-40 min; then adding sodium carboxymethyl cellulose, and then increasing the speed to 1500-1800 rpm and stirring for 40-60 min to obtain the protective colloid.

[0032] Optionally, the preparation method of the sand-containing granite coating further includes the following steps: preparing a base paint, preparing a continuous phase, and preparing the sand-containing granite coating;

[0033] Preparation of continuous phase: Add defoamer and suspending agent to water at a stirring speed of 800-1000 rpm and stir at 1500-1800 rpm for 20-40 min; then add emulsion, antifreeze, film-forming aid, bactericide, pH adjuster, thickener and quartz sand, and stir at 800-1000 rpm for 5-15 min to obtain continuous phase.

[0034] Optionally, the specific steps for preparing the base paint are as follows: At a stirring speed of 800-1000 rpm, add dispersant, defoamer, antifreeze, film-forming aid, wetting agent, titanium dioxide, kaolin, and cellulose to water, stir for 5-10 minutes, then add pH adjuster, and stir at 1500-1800 rpm for 15-25 minutes; subsequently add emulsion, preservative, 10% protective colloid aqueous solution, and thickener, and stir at 1500-1800 rpm for 5-15 minutes to obtain the base paint.

[0035] Optionally, the specific steps for preparing the sand-containing granite coating are as follows: adding the base paint to the protective colloid and granulating to obtain a particle mixture; then adding the continuous phase to the particle mixture and stirring evenly to obtain the sand-containing granite coating; the weight ratio of the base paint, protective colloid and continuous phase is 1:(0.3-0.5):(0.2-0.4).

[0036] In summary, this application has the following beneficial effects:

[0037] 1. This application utilizes GRAS-B protective adhesive, GT-R protective adhesive, and sodium carboxymethyl cellulose to prepare an aqueous solution of protective adhesive. By adjusting the addition amount of each component within the following range: 1-10 parts of GRAS-B protective adhesive, 3-7 parts of GT-R protective adhesive, 1-3 parts of sodium carboxymethyl cellulose, and 85-95 parts of water, the obtained aqueous solution of protective adhesive exhibits excellent viscosity, suspension, and stability.

[0038] 2. This application utilizes a protective adhesive aqueous solution mixed with a base paint and granulated, then mixed with a continuous phase, to prepare a sand-containing sand-coated granite-like coating. This granite-like coating exhibits excellent strength and toughness, as well as superior suspension properties. Using this sand-containing granite-like coating for wall spraying results in a low rate of broken color dots and good spray uniformity, without the problem of color bleeding through the base coat. Detailed Implementation

[0039] In a first aspect, this application provides a protective adhesive aqueous solution comprising the following components in parts by weight: 1-10 parts of GRAS-B protective adhesive, 3-7 parts of GT-R protective adhesive, 1-3 parts of sodium carboxymethyl cellulose, and 85-95 parts of water. Further, the protective adhesive aqueous solution comprises the following components in parts by weight: 2-7 parts of GRAS-B protective adhesive, 3-5 parts of GT-R protective adhesive, 1.5-2.5 parts of sodium carboxymethyl cellulose, and 85-95 parts of water. Optionally, the viscosity of the sodium carboxymethyl cellulose is 1000-3500 mPa·s.

[0040] Secondly, this application provides a sand-containing granite coating, which includes a protective adhesive aqueous solution, a continuous phase, and a base paint; wherein the continuous phase includes the following components in parts by weight: 0.1-0.3 parts of defoamer, 0.1-0.5 parts of suspending agent, 1-10 parts of antifreeze, 1-10 parts of film-forming aid, 0.1-0.5 parts of bactericide, 0.1-0.3 parts of pH adjuster, 0.1-0.5 parts of thickener, 20-50 parts of emulsion, 40-60 parts of quartz sand, and 20-50 parts of water. The base paint comprises the following components in parts by weight: 0.1-0.2 parts dispersant, 0.1-0.3 parts defoamer, 1-2 parts antifreeze, 1-2 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, 1.0-2.0 parts pH adjuster, 30-50 parts emulsion, 0.1-0.5 parts preservative, 5-10 parts 10% protective colloid aqueous solution, 0.1-0.5 parts thickener, and 30-50 parts water.

[0041] The preparation method of the above-mentioned sand-containing granite coating includes the following steps:

[0042] (1) Preparation of protective colloid aqueous solution: Add GRAS-B protective colloid and GT-R protective colloid to deionized water at a stirring speed of 800-1000 rpm and stir for 20-40 min; then add sodium carboxymethyl cellulose, then increase the speed to 1500-1800 rpm and stir for 40-60 min to obtain the protective colloid aqueous solution.

[0043] (2) Preparation of base paint: At a stirring speed of 800-1000 rpm, add dispersant, defoamer, antifreeze, film-forming aid, wetting agent, titanium dioxide, kaolin and cellulose to deionized water in sequence, stir for 5-10 min, then add pH adjuster, and stir at 1500-1800 rpm for 15-25 min; then add emulsion, preservative, 10% protective glue aqueous solution and thickener, and stir at 1500-1800 rpm for 5-15 min to obtain base paint.

[0044] (3) Preparation of continuous phase: Add defoamer and suspending agent to deionized water at a stirring speed of 800-1000 rpm and stir at a speed of 1500-1800 rpm for 20-40 min; then add emulsion, antifreeze, film-forming aid, bactericide, pH adjuster, thickener and quartz sand, and stir at a speed of 800-1000 rpm for 5-15 min to obtain continuous phase.

[0045] (4) Add the base paint to the protective adhesive and granulate to obtain a particle mixture.

[0046] (5) Add a continuous phase to the particle mixture obtained in step (4), mix evenly, and obtain a sand-containing granite coating.

[0047] The weight ratio of the base paint, protective colloid, and continuous phase is 1:(0.3-0.5):(0.2-0.4).

[0048] In the embodiments of this application, the sources of each raw material are shown in Table 1 below. The other raw materials, reagents, solvents, etc. used in this application can also be obtained commercially.

[0049] Table 1. Sources of raw materials used in the embodiments

[0050]

[0051]

[0052] The following detailed description of this application is provided in conjunction with preparation examples, embodiments, and performance testing experiments.

[0053] Preparation Examples 1-12

[0054] Preparation Examples 1-12 each provide a protective adhesive aqueous solution.

[0055] The difference in the above preparation examples lies in the amount of each component added to the protective adhesive aqueous solution, as shown in Table 2 below.

[0056] The preparation method of the protective colloid aqueous solution provided in Preparation Examples 1-12 is as follows: GRAS-B protective colloid and GT-R protective colloid are added to water at a stirring speed of 900 rpm and stirred for 30 min; then sodium carboxymethyl cellulose (viscosity of 1000-1500 mPa.s) is added, and then the speed is increased to 1600 rpm and stirred for 40-60 min to obtain the protective colloid.

[0057] Table 2 shows the components and amounts of the protective adhesive aqueous solution provided in Preparation Examples 1-12.

[0058]

[0059] Preparation Examples 13-16

[0060] Preparation Examples 13-16 each provide a protective adhesive aqueous solution.

[0061] The difference between the above preparation example and preparation example 3 is that the viscosity of sodium carboxymethyl cellulose in the protective adhesive aqueous solution is shown in Table 3 below.

[0062] Table 3 shows the viscosity of sodium carboxymethyl cellulose in the aqueous solution of the protective colloid provided in Preparation Examples 13-16.

[0063]

[0064] Comparative Preparation Example 1

[0065] Comparative preparation example 1 provides a protective adhesive aqueous solution.

[0066] The difference between the above comparative preparation example and preparation example 3 is that the amount of GRAS-B protective adhesive added is 0.

[0067] Comparative Preparation Example 2

[0068] Comparative preparation example 2 provides a protective adhesive aqueous solution.

[0069] The difference between the above comparative preparation example and preparation example 3 is that the amount of GT-R protective adhesive added is 0.

[0070] Comparative preparation example 3

[0071] Comparative preparation example 3 provides a protective adhesive aqueous solution.

[0072] The difference between the above comparative preparation example and preparation example 3 is that the amount of sodium carboxymethyl cellulose added is 0.

[0073] Comparative preparation example 4

[0074] Comparative preparation example 4 provides a protective adhesive aqueous solution.

[0075] The difference between the above comparative preparation example and preparation example 3 is that the GRAS-B protective adhesive was replaced with R106 protective adhesive.

[0076] Comparative preparation example 5

[0077] Comparative preparation example 5 provides a protective adhesive aqueous solution.

[0078] The difference between the above comparative preparation example and preparation example 3 is that the GT-R protective adhesive was replaced with BYK-S482 protective adhesive.

[0079] Examples 1-16

[0080] Examples 1-16 each provide a sand-containing granite coating.

[0081] The difference between the above embodiments is that the protective adhesive aqueous solution used in the sand-containing granite coatings of Examples 1-16 is derived from the preparation examples 1-16.

[0082] The preparation method of the sand-containing granite coating provided in Examples 1-16 includes the following steps:

[0083] (1) Preparation of protective adhesive aqueous solution: Prepare protective adhesive aqueous solution according to the preparation method of Preparation Examples 1-16.

[0084] (2) Preparation of base paint: At a stirring speed of 900 rpm, add 0.2 g of dispersant, 0.2 g of defoamer, 1.8 g of antifreeze, 1.4 g of film-forming aid, 0.26 g of wetting agent, 3.5 g of titanium dioxide, 4.0 g of kaolin and 1.2 g of cellulose to 40 mL of deionized water, stir for 5 min, then add pH adjuster and stir at 1600 rpm for 20 min; then add 42 g of emulsion, 0.35 g of preservative, 8.5 g of 10% protective colloid aqueous solution (obtained by diluting the protective colloid aqueous solution obtained in step 1) and 0.4 g of thickener, and stir at 1600 rpm for 10 min to obtain base paint with pH 8.

[0085] (3) Preparation of continuous phase: Add 0.2g of defoamer and 0.4g of suspending agent (CEKOL 4000) to 40mL of deionized water at a stirring speed of 900rpm, and stir at 1600rpm for 30min; then add 35g of emulsion, 5.5g of antifreeze, 6g of film-forming aid, 0.3g of bactericide, pH adjuster, 0.35g of thickener and 50g of quartz sand, and stir at 900rpm for 10min to obtain a continuous phase with pH of 8.

[0086] (4) Add the base paint to the protective adhesive and granulate to obtain a particle mixture.

[0087] (5) Add a continuous phase to the particle mixture obtained in step (4), mix evenly, and obtain a sand-containing granite coating.

[0088] In the above embodiments, the weight ratio of the base paint, protective colloid, and continuous phase is 1:0.4:0.3.

[0089] Example 17

[0090] Example 17 provides a sand-containing granite coating.

[0091] The difference between the above embodiments and Embodiment 3 is that the suspending agent in the continuous phase of Embodiment 17 is Aorun AS200.

[0092] Example 18

[0093] Example 18 provides a sand-containing granite coating.

[0094] The difference between the above embodiments and Embodiment 3 is that the suspending agent in the continuous phase of Embodiment 18 is a grid 4700.

[0095] Example 19

[0096] Example 19 provides a sand-containing granite coating.

[0097] The difference between the above embodiments and Embodiment 3 is that the suspending agent in the continuous phase of Embodiment 19 is a mixture of CEKOL 4000 and Grid 4700 in a weight ratio of 1:1.

[0098] Comparative Examples 1-5

[0099] Comparative Examples 1-5 each provide a sand-containing granite-like coating.

[0100] The difference between the above comparative examples and Example 2 is that the protective adhesive aqueous solution used in the sand-containing granite coatings of comparative examples 1-5 were respectively derived from comparative preparation examples 1-5.

[0101] Comparative Example 6

[0102] Comparative Example 6 provides a sand-containing granite coating.

[0103] The difference between the above comparative example and Example 2 is that in the sand-containing granite coating of Comparative Example 6, the amount of suspending agent added in the continuous phase is 0.

[0104] Performance testing

[0105] The performance of the sand-containing granite coatings obtained in Examples 1-19 and Comparative Examples 1-6 was tested. The test results are shown in Table 4 below.

[0106] (1) Suspension heat storage time: The sand-containing granite paint was put into a 500mL transparent jar (8.5cm in diameter and 10cm in height), and the transparent tube was placed in a 50℃ constant temperature box. The sand-containing granite paint was observed daily to see if the coating layered, and the time when the layering occurred was recorded.

[0107] Layering refers to the solid-liquid separation of sand-containing granite coatings, where the upper layer of the coating is liquid. Layering is considered to have occurred when the height of the upper liquid layer reaches 3mm.

[0108] (2) Fragmentation rate: Using a W-77 type multi-color special spray gun with a nozzle diameter of 3.5mm, the sand-containing granite paint was applied at a rate of 0.8kg / m² under a pressure of 0.04MPa in the can and 0.1MPa at the nozzle. 2 The concentration of the coating is sprayed onto an opaque rigid PVC board of 30mm×20mm, and the percentage of the area with broken spots on the PVC board per unit area is observed to obtain the broken spot rate.

[0109] (3) Spraying effect: Using a W-77 type multi-color special spray gun with a nozzle diameter of 3.5mm, the sand-containing granite paint was applied at a rate of 1.2kg / m³ under a pressure of 0.04MPa in the can and 0.1MPa at the nozzle. 2The colorant was sprayed onto a 30mm×20mm opaque rigid PVC board, and the color dots on the PVC board were observed to see if they were uniform and whether there was any see-through coloring.

[0110] Table 4. Performance test results of sand-containing granite coatings obtained in Examples 1-19 and Comparative Examples 1-6

[0111]

[0112]

[0113] Table 4 shows that the suspension heat storage time of the sand-containing granite-colored coatings obtained in Examples 1-19 was 53-65 days, the breakage rate was ≤5%, and after spraying, the surface of the PVC board had uniform colored dots and no undercoat blooming. In Comparative Example 1, no GRAS-B protective colloid was added to the protective colloid solution, resulting in a suspension heat storage time of 49 days for the sand-containing granite-colored coating. The breakage rate after spraying was as high as 18%, and the colored dots were uneven, exhibiting undercoat blooming. In Comparative Example 2, no GT-R protective colloid was added to the protective colloid solution, resulting in a suspension heat storage time of 51 days for the sand-containing granite-colored coating. The breakage rate after spraying was as high as 16%, and the colored dots were uneven, exhibiting undercoat blooming. In Comparative Example 3, no sodium carboxymethyl cellulose was added to the protective colloid solution... The particle breakage rate of the sand-containing granite-colored coating after spraying was as high as 12%. Comparative Example 4, using a combination of R106 and GT-R protective adhesives, achieved a particle breakage rate of 14%. Comparative Example 5, using a combination of GRAS-B and BYK-S482 protective adhesives, achieved a particle breakage rate of 11%, with uneven color dots and a tendency to show through the substrate. Comparative Example 6, without the addition of a suspending agent, showed a suspension heat storage time of only 28 days for its sand-containing granite-colored coating. Therefore, it is demonstrated that the protective adhesive aqueous solution prepared using the three components of GRAS-B, GT-R, and sodium carboxymethyl cellulose exhibits excellent strength and toughness. Using this solution to prepare the sand-containing granite-colored coating results in high hardness, making the color dots less prone to breakage during spraying and achieving good construction results.

[0114] The test results of Examples 1-5 show that as the amount of GRAS-B protective adhesive added increases, the suspension heat storage time of the sand-containing granite coating remains basically unchanged, and its breakage rate shows a trend of first decreasing and then increasing; especially in Examples 2-4, when the amount of GRAS-B protective adhesive added is controlled between 2 and 7 parts, the breakage rate of the sand-containing granite coating obtained is only 3-4%.

[0115] The test results of Examples 3 and 6-8 show that as the amount of GT-R protective adhesive added increases, the suspension heat storage time of the sand-containing granite coating remains basically unchanged, and its breakage rate shows a trend of first decreasing and then increasing; especially in Examples 3 and 6-7, when the amount of GT-R protective adhesive added is controlled between 3 and 5 parts, the breakage rate of the sand-containing granite coating obtained is only 3-4%.

[0116] The test results of Examples 3 and 9-12 show that as the amount of sodium carboxymethyl cellulose added increases, the suspension heat storage time of the sand-containing granite coating remains basically unchanged, and its breakage rate shows a trend of first decreasing and then increasing; especially in Examples 3 and 10-11, when the amount of sodium carboxymethyl cellulose added is controlled between 1.5 and 2.5 parts, the breakage rate of the sand-containing granite coating can be as low as 3%.

[0117] The test results of Examples 3 and 13-16 show that the viscosity of sodium carboxymethyl cellulose affects the suspension heat storage time and breakage rate of the sand-containing granite coating. The suspension heat storage time of the sand-containing granite coating obtained in Example 13 was 56 days, and the breakage rate was 5%. The suspension heat storage time of the sand-containing granite coatings obtained in Examples 3 and 14-15 was 56-62 days, and the breakage rate was 3%. The suspension heat storage time of the sand-containing granite coating obtained in Example 16 was 63 days, and the breakage rate was 5%. Therefore, this application demonstrates that by controlling the viscosity of sodium carboxymethyl cellulose between 1000-3500 mPa·s, the resulting sand-containing granite coating has a longer suspension heat storage time and a lower breakage rate after spraying.

[0118] In summary, this application controls the addition amount of each component in the protective adhesive aqueous solution within the following range: 2-7 parts of GRAS-B protective adhesive, 3-5 parts of GT-R protective adhesive, 1.5-2.5 parts of sodium carboxymethyl cellulose and 85-95 parts of water, and controls the viscosity of sodium carboxymethyl cellulose within the range of 1000-3500 mPa.s. The resulting sand-type granite coating has a longer suspension heat storage time and a lower spraying breakage rate.

[0119] The test results of Examples 3 and 17-19 show that the suspension heat storage time of sand-containing granite-colored coatings prepared with different types of suspending agents varies. In particular, the suspension heat storage time of the sand-containing granite-colored coatings prepared in Examples 3 and 17 can reach more than 55 days. Therefore, it is shown that the sand-containing granite-colored coatings prepared by using CEKOL 4000 or Aorun AS200 suspending agents in this application have a longer suspension heat storage time.

[0120] 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 protective glue solution, characterized by, The protective glue solution comprises the following components by weight: GRAS-B protective glue 5-7 parts, GT-R protective glue 4-5 parts, sodium carboxymethyl cellulose 1.5-2.5 parts, and water 85-95 parts; the viscosity of the sodium carboxymethyl cellulose is 1000-3500 mPa·s.

2. A sand-containing stone color paint, characterized in that, The sand-containing hemp color stone paint comprises the protective glue solution of claim 1.

3. The sand-containing type stone paint Maqian of claim 2, characterized in that, The sand-containing hemp color stone paint further comprises a continuous phase and a base paint. The continuous phase comprises the following components by weight: defoaming agent 0.1-0.3 parts, suspending agent 0.1-0.5 parts, antifreeze 1-10 parts, film-forming aid 1-10 parts, bactericide 0.1-0.5 parts, pH regulator 0.1-0.3 parts, thickening agent 0.1-0.5 parts, emulsion 20-50 parts, quartz sand 40-60 parts, and water 20-50 parts.

4. The sand-containing type stone paint Maqian of claim 3, characterized in that, The base paint comprises the following components by weight: dispersing agent 0.1-0.2 parts, defoaming agent 0.1-0.3 parts, antifreeze 1-2 parts, film-forming aid 1-2 parts, wetting agent 0.2-0.3 parts, titanium white 1-5 parts, kaolin 1-8 parts, cellulose 0.8-2.0 parts, pH regulator 1.0-2.0 parts, emulsion 30-50 parts, preservative 0.1-0.5 parts, 10% protective glue solution 5-10 parts, thickening agent 0.1-0.5 parts, and water 30-50 parts.

5. The method for preparing sand-containing stone paint of claim 2-4, characterized in that, The method comprises the following steps: Preparation of the protective glue solution: under a stirring speed of 800-1000 rpm, GRAS-B protective glue and GT-R protective glue are added to water, and stirred for 20-40 min; then sodium carboxymethyl cellulose is added, and the stirring speed is increased to 1500-1800 rpm, and stirred for 40-60 min to obtain the protective glue.

6. The preparation method of the sand-containing stone paint of claim 5, characterized in that, The method comprises the following steps: Preparation of the base paint, preparation of the continuous phase, and preparation of the sand-containing hemp color stone paint. Preparation of the continuous phase: under a stirring speed of 800-1000 rpm, defoaming agent and suspending agent are added to water, and stirred for 20-40 min at a speed of 1500-1800 rpm; then emulsion, antifreeze, film-forming aid, bactericide, pH regulator, thickening agent, and quartz sand are added, and stirred for 5-15 min at a speed of 800-1000 rpm to obtain the continuous phase.

7. The method for preparing sand-containing granite-colored coating according to claim 6, characterized in that, The specific steps for preparing the base paint are as follows: under a stirring speed of 800-1000 rpm, dispersing agent, defoaming agent, antifreeze, film-forming aid, wetting agent, titanium white, kaolin, and cellulose are added to water, and stirred for 5-10 min; then pH regulator is added, and stirred for 15-25 min at a stirring speed of 1500-1800 rpm; subsequently, emulsion, preservative, 10% protective glue solution, and thickening agent are added, and stirred for 5-15 min at a stirring speed of 1500-1800 rpm to obtain the base paint.

8. The method for preparing sand-containing granite-colored coating according to claim 6, characterized in that, The specific steps for preparing the sand-containing hemp color stone coating are: adding base paint into protective glue to obtain granules, and then adding continuous phase into the granules to obtain the sand-containing hemp color stone coating after stirring uniformly; the weight ratio of the base paint, the protective glue and the continuous phase is 1:(0.3-0.5):(0.2-0.4).

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