CN115820028A - Expandable hollow microsphere, novel hollow material and application of novel hollow material in sand-containing stone-like coating - Google Patents
Expandable hollow microsphere, novel hollow material and application of novel hollow material in sand-containing stone-like coating Download PDFInfo
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Abstract
The expandable hollow microsphere comprises a polymer shell and inert alkane wrapped in the polymer shell, wherein the polymer shell is a terpolymer, and three monomers of the terpolymer are methyl methacrylate, 1-dichloroethylene and acrylonitrile respectively; wherein the inert alkane is one of n-hexane, isooctane, isopentane, neopentane and heptane. Wherein the novel hollow material comprises a mixture of expandable hollow microspheres and water; the novel hollow material is used for the sand-containing stone-like coating, can improve the storage stability of the coating and prolong the storage time so as to solve the problems of most of the current commercial products, and the prepared sand-containing stone-like coating has various artistic effects of the traditional dry-hanging decorative surface material and has the characteristics of low cost, controllable color, energy conservation, environmental protection and the like.
Description
Technical Field
The invention belongs to the field of coatings, and particularly relates to an expandable hollow microsphere, a novel hollow material and application of the hollow microsphere in a sand-containing stone-like coating.
Background
The sand-containing stone-like coating is a popular stone-like coating product for exterior walls. The product is widely applied to various high-end projects, the decoration effect greatly improves the quality of the projects, and the product can be compared favorably with real stone. Compared with the real stone paint, the sand-containing stone-imitating coating has high emulsion content, better weather resistance and stain resistance, richer and fuller pattern simulation degree, and more vivid stone effect.
At present, with the increasing market demand, different sand-containing stone-like coatings are listed successively, the simulation effect is very rich, but through comparison tests, almost all the commercial products face the problem of storage stability, the color point of the coating is easy to delaminate, and the service life of the product is short.
In summary, there is an urgent need in the art to develop a sand-containing stone-like coating with good storage stability to meet the requirements of different construction periods, rich effect and high cost performance.
Disclosure of Invention
The invention aims to solve the technical problem of providing an expandable hollow microsphere, a novel hollow material and application thereof in a sand-containing stone-like coating, wherein the expandable hollow microsphere can be used for preparing the hollow material, the hollow material is mainly a mixture of an expandable polymer and water, and the hollow material is used for the sand-containing stone-like coating, so that the storage stability of the coating can be improved, and the storage time can be prolonged, so that the problems of most of the current commercially available products can be solved.
In order to solve the problems, the invention is realized by the following technical scheme:
the invention relates to an expandable hollow microsphere, which comprises a polymer shell and inert alkane wrapped in the polymer shell, wherein the polymer shell is a terpolymer, and three monomers of the terpolymer are methyl methacrylate, 1-dichloroethylene and acrylonitrile respectively;
wherein the inert alkane is one of n-hexane, isooctane, isopentane, neopentane and heptane.
The expandable hollow microspheres of the invention are further optimized as follows:
wherein the weight ratio of methyl methacrylate, 1-dichloroethylene and acrylonitrile in the three monomers is 10-30.
The invention also relates to a preparation method of the expandable hollow microsphere, which comprises the steps of heating the outer shell of the polymer to 100-200 ℃ until inert alkane wrapped in the outer shell of the polymer is gasified, expanding the volume of the microsphere and forming a hollow structure, thereby obtaining the expandable hollow microsphere.
The expandable hollow microspheres of the invention are further optimized as follows:
the paint comprises the following components in parts by weight:
wherein the inert alkane is one of n-hexane, isooctane, isopentane, neopentane and heptane;
wherein the three monomers comprise the following components in parts by weight:
10-30 parts of methyl methacrylate;
5-10 parts of 1, 1-dichloroethylene;
60-85 parts of acrylonitrile;
the sum of all components in the three monomers is 100 parts by weight.
The invention also relates to a preparation method of the expandable hollow microsphere,
the preparation method comprises the following preparation steps:
A. adding water and a surfactant into a reaction kettle and uniformly stirring;
B. adding three monomers, inert alkane and an initiator according to a proportion, strongly stirring uniformly and carrying out polymerization reaction;
C. adding a surface treating agent into the slurry obtained after the polymerization reaction is finished according to a proportion;
D. filtering, washing and drying to obtain basic microspheres;
E. the basic microsphere is heated for 3 to 7 hours at the temperature of between 100 and 200 ℃ to obtain the expandable hollow microsphere.
The invention also relates to a novel hollow material, wherein the novel hollow material comprises a mixture consisting of the expandable hollow microspheres and water, and the weight of the expandable hollow microspheres and the water is 15-25.
The expandable hollow microspheres can be used for preparing hollow materials, the hollow materials are mainly a mixture of expandable polymers and water, the hollow materials are used for sand-containing stone-like coatings, the storage stability of the coatings can be improved, the storage time is prolonged, and the problems of most of products sold in the market at present are solved.
The invention also relates to a sand-containing stone-like coating which comprises the novel hollow material.
The sand-containing stone-like coating is further optimized as follows: the sand-containing stone-like coating comprises the following components in parts by weight:
10-20 parts of protective glue solution, 50-70 parts of color mixing paint and 15-25 parts of coating emulsion, and deionized water for supplementing the balance, wherein the total weight part is 100 parts;
wherein the protective glue solution is: 5-10 parts of protective glue and 90-95 parts of deionized water;
wherein the color mixing paint comprises the following components: 15 to 20 portions of emulsion, 1 to 5 portions of pigment and filler, 0.5 to 5 portions of cosolvent, 0.5 to 5 portions of auxiliary agent, 0.5 to 3 portions of novel hollow material, 20 to 30 portions of white sand, 5 to 10 portions of protective glue solution, and deionized water to supplement the balance, wherein the total weight portion is 100 portions;
wherein the coating emulsion is: 40 to 60 parts of emulsion, 0.5 to 5 parts of cosolvent, 0.5 to 5 parts of auxiliary agent and deionized water for supplementing the balance, wherein the total weight part is 100 parts.
The sand-containing stone-like coating is further optimized as follows:
the protective glue mainly comprises synthetic flaky magnesium aluminum silicate purchased from Bike auxiliary agent.
The sand-containing stone-like coating is further optimized as follows:
the kind of the emulsion is not particularly limited, and the emulsion is one or a combination of more of styrene-acrylic emulsion, pure acrylic emulsion and silicone acrylic emulsion.
The sand-containing stone-like coating is further optimized as follows:
the emulsion is preferably one or the combination of pure acrylic emulsion and silicone acrylic emulsion.
The emulsion in the color mixing paint is preferably silicone-acrylate emulsion RS2788 which is available from Barde Fukulturen Co.
The emulsion in the coating emulsion is preferably silicone acrylic emulsion KD97C which is purchased from Shanghai Baolijia company;
wherein the cosolvent in the coating emulsion is preferably: one or a combination of more of film forming auxiliary agent and antifreeze.
Wherein the auxiliary agent in the coating emulsion is preferably: one or more of thickening agent, pH regulator and in-tank bactericide.
The pigment type in the pigment filler is not particularly limited, and is preferably: rutile type titanium dioxide, iron oxide red slurry, iron oxide yellow slurry and carbon black slurry.
The filler in the pigment and filler is preferably calcined kaolin.
Wherein the cosolvent in the color mixing paint is preferably: one or a combination of more of film forming auxiliary agent and antifreeze.
The auxiliary agent in the color mixing paint is preferably: thickening agent, pH regulator, wetting dispersant, defoaming agent and in-tank bactericide.
Wherein said thickener in the paint is preferably: one or more of cellulose thickener 250HBR (Himalayan), cellulose thickener HE10K (Himalayan), and alkali swelling thickener TT615 (Dow).
Wherein said thickener in the coating emulsion is preferably: one or a combination of organic bentonite and alkali swelling thickener TT935 (Dow).
The pH regulator is preferably: one or a combination of multifunctional amine cosolvent AMP-95 (Dow) and organosilicon cosolvent BS-16 (watt-g).
The wetting and dispersing agent is preferably: one or a combination of an ammonium salt dispersant SN5027 (Nopock) and a non-ionic wetting dispersant SF8 (Kelaien).
The defoaming agent is preferably: one or a combination of mineral oil defoaming agent and organosilicon defoaming agent.
The film-forming aid is preferably: a dodecyl alcohol ester.
The invention also relates to a preparation method of the sand-containing stone-imitating coating, which comprises the following preparation steps:
A. preparation of a protective colloid solution: slowly adding the protective adhesive into deionized water, dispersing at high speed for 30min to obtain protective adhesive solution, and standing for 24 h;
B. preparing a color mixing paint: adding an auxiliary agent and a pigment filler into deionized water, dispersing at a high speed for 20min, then adding an emulsion, a cosolvent and a novel hollow material, dispersing at a low speed for 10min, then adding white sand and the protective glue solution, and stirring at a low speed for 10min until the mixture is uniform to obtain a color mixing paint;
C. preparation of coating emulsion: uniformly mixing the emulsion, the cosolvent, the auxiliary agent and deionized water at a low speed to prepare a coating emulsion;
D. preparing the sand-containing stone-proof coating: and uniformly mixing the protective glue solution and deionized water at a low speed, adding the color mixing paint, cutting color points to a proper size according to requirements in a granulation mode, then adding the coating emulsion, and uniformly stirring at a low speed to prepare the sand-containing stone-like coating.
The color mixing paint of the invention has the following advantages:
(1) The product is stored for 4 weeks at the temperature of 21-25 ℃, and the appearance and the viscosity are not obviously abnormal;
(2) The product is stored for 4 weeks at high temperature (50-60 ℃), the appearance and the viscosity are not obviously abnormal, and the layering phenomenon is avoided;
(3) 4 weeks at low temperature (2-8 ℃), with no obvious abnormalities in appearance and viscosity;
(4) Freeze thawing for 3 cycles, and no obvious abnormity in appearance and viscosity.
The sand-containing stone-like coating has the following advantages:
(1) Storing at room temperature for 365 days without layering and hard lumps, and stirring to obtain a uniform state;
(2) Storing at 55 deg.C for 30 days without hard block and delamination, and stirring to obtain uniform state;
(3) Storing at 5 deg.C for 30 days without hard block and delamination, and stirring to obtain uniform state;
(4) Freezing and thawing for 6 cycles without deterioration;
(5) The artificial aging 2000H color change grade is not more than grade 1.
The invention discloses expandable hollow microspheres, a novel hollow material and application thereof in a sand-containing stone-like coating, and aims to solve the problem of storage layering of the sand-containing stone-like coating in the existing product by using the hollow material. The hollow material is a mixture mainly composed of expandable hollow microspheres and water, can be used as a light filler, is added into color dots of the sand-containing stone-like coating to reduce the specific gravity of the color dots so as to achieve the purpose of improving the storage stability of the coating and prolong the storage time of the product, and has vivid stone-like effect, energy conservation, environmental protection, low price and low cost. The stone-like coating with various pattern effects and texture effects can be produced in a large scale through specific production equipment, and can be stored for a long time.
Because a large amount of crystal white sand is added into the color points of the stone-like coating, the density is increased, so that the color points are easy to settle in the coating, and the application property of the coating is influenced. The hollow microspheres have the characteristics of light weight and high strength, and can buffer the density change of the color points caused by the addition of the crystal white sand after being added into the color points of the stone-like coating, so that the color points have good suspension property in the coating by adjusting the addition amount of the hollow microspheres and the crystal white sand.
Compared with the similar products in the market, the invention has the advantages that:
(1) The storage stability is excellent, the appearance can not be obviously changed after being placed for one year at normal temperature, and no layering and no caking exist.
(2) The heat storage is stable, no layering and no hard block are generated after one month of heat storage, and the stirring is uniform.
(3) Compared with the traditional dry hanging stone facing material, the sand-containing stone-imitating coating has the advantages that the total cost is reduced by at least 50 percent;
(4) The color matching is convenient, any color can be produced according to the stone effect requirement, and the color matching is the same as that of emulsion paint;
(5) Environment-friendly materials, and meets the requirement of environmental protection.
Drawings
FIG. 1 comparison of thermal storage stability of sand-containing stone-like coating 1 (left) with commercial product (right)
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the present invention is provided in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. The simple improvement of the preparation method of the invention on the premise of the conception of the invention belongs to the protection scope of the invention.
Example 1: preparation method of sand-containing stone-like coating
A preparation method of a sand-containing stone-like coating comprises the following preparation steps:
A. preparing a protective colloid solution: slowly adding the protective glue into deionized water, dispersing at high speed for 30min to obtain protective glue solution, and standing for 24 h;
B. preparing a color mixing paint: adding an auxiliary agent and a pigment filler into deionized water, dispersing at a high speed for 20min, then adding an emulsion, a cosolvent and a novel hollow material, dispersing at a low speed for 10min, then adding white sand and the protective glue solution, and stirring at a low speed for 10min until the mixture is uniform to obtain a color mixing paint;
C. preparation of coating emulsion: uniformly mixing the emulsion, the cosolvent, the auxiliary agent and deionized water at a low speed to prepare a coating emulsion;
D. preparing the sand-containing stone-proof coating: and uniformly mixing the protective glue solution and deionized water at a low speed, adding the color mixing paint, cutting color points to a proper size according to requirements in a granulation mode, then adding the coating emulsion, and uniformly stirring at a low speed to prepare the sand-containing stone-like coating.
TABLE 1 composition of sand-containing stone-like paint (parts by weight)
The paint prepared in # 1 to # 4 in this example 1 has the following characteristics:
(1) The product is stored for 4 weeks at the temperature of 21-25 ℃, and the appearance and the viscosity are not obviously abnormal;
(2) The product is stored for 4 weeks at high temperature (50-60 ℃), the appearance and the viscosity are not obviously abnormal, and the layering phenomenon is avoided;
(3) The appearance and the viscosity are not obviously abnormal at low temperature (2-8 ℃) for 4 weeks;
(4) Freeze thawing for 3 cycles, and no obvious abnormity in appearance and viscosity.
The sand-containing stone-like coating prepared in # 1-4 of the embodiment 1 has the following characteristics:
(1) Storing at room temperature for 365 days without layering and hard lumps, and stirring to obtain a uniform state;
(2) Storing at 55 deg.C for 30 days without hard block and delamination, and stirring to obtain uniform state;
(3) Storing at 5 deg.C for 30 days without hard block and delamination, and stirring to obtain uniform state;
(4) Freezing and thawing for 6 cycles without deterioration;
(5) The artificial aging 2000H color change grade is not more than grade 1.
The hollow material is added into the color mixing paint of the sand-containing stone-like coating as a light filler, the specific gravity of the color mixing paint is reduced, the sand content in the color mixing paint can be adjusted according to the effect requirement, and then the addition amount of the hollow material is adjusted, so that the aim of improving the storage stability of the coating is fulfilled, the storage time of the product is prolonged, and the storage time of the sand-containing stone-like coating can be prolonged by 1 year or more by adding the hollow material.
Table 2 shows the results of comparing the properties of the sand-containing imitation stone paint 1 prepared according to the experimental group No. 1 in example 1 with those of the same type of products having similar commercially available components.
TABLE 2 results of comparison of sand-containing imitation stone paint 1 with commercial products
| Performance of | Sand-containing stone-like coating 1 | Commercially available product |
| State in the vessel | No hard block, and uniform state after stirring | No hard block, and uniform state after stirring |
| Stability in Heat storage | No caking, no delamination and no deterioration | Severe delamination |
| Initial water-white property | Slight water white | Severe water whitening |
| Effect | Multiple stone-like effects | Multiple stone-like effects |
| Colour(s) | Various colors | Various colors |
The thermal storage stability of the sand-containing stone-like coating 1 is compared with that of a commercially available product as shown in FIG. 1.
The results show that compared with the products sold on the market, the sand-containing stone-imitating coating has good storage stability and rich pattern effect and texture effect.
Comparative example 1
The difference from the preparation of the paint, the protective glue solution, the coating emulsion and the sand-containing stone-like coating of the experimental group # 1 in the example 1 is that:
removing the novel hollow materials in the color mixing paint, and complementing the rest of deionized water to obtain the color mixing paint C1.
A sand-containing stone-like paint C1 was prepared in the same manner as in example 1, and had the following properties in Table 3.
TABLE 3 Sand Stone-like coating C1 Properties
The novel hollow materials in the color mixing paint are removed, the state in the container is poor, the layering phenomenon is caused when the container is placed at normal temperature, and the color dots are easy to generate hard precipitates after heat storage and are difficult to stir uniformly.
Therefore, compared with the existing sand-containing stone-like coating, the novel hollow material provided by the invention is applied to the sand-containing stone-like coating, the coating has good storage stability, and the pattern effect and the texture effect can achieve the stone-like effect.
Comparative example 2
The difference from the preparation of the paint, the protective glue solution, the coating emulsion and the sand-containing stone-like coating of the experimental group # 1 in the example 1 is that:
replacing the novel hollow material in the color mixing paint with the hollow material on the market, and complementing the rest of deionized water to obtain the color mixing paint C2.
In the same way as in example, a sand-containing stone-like coating C2 was obtained, the properties of which are shown in Table 4 below.
TABLE 4 Sand stone-like paint C2 Properties
The novel hollow material in the color mixing paint is replaced, the hollow material on the market is adopted, the state in a container is poor, the layering phenomenon exists, and color points are easy to generate hard precipitates after heat storage and are difficult to stir uniformly.
Therefore, compared with the existing sand-containing stone-like coating, the novel hollow material provided by the invention is applied to the sand-containing stone-like coating, the coating has good storage stability, and the pattern effect and the texture effect can achieve the stone-like effect.
Example 2 preparation of expandable hollow microspheres
A preparation method of expandable hollow microspheres comprises the following preparation steps:
heating the polymer shell to 100-200 ℃ until the inert alkane wrapped in the polymer shell is gasified, so that the volume of the microsphere is expanded to form a hollow structure, thereby obtaining the expandable hollow microsphere.
The expandable hollow microsphere comprises a polymer shell and inert alkane wrapped in the polymer shell, wherein the polymer shell is a terpolymer, and three monomers of the terpolymer are methyl methacrylate, 1-dichloroethylene and acrylonitrile respectively; wherein the ternary polymerization reaction can be operated by adopting conventional experimental parameters and conditions, and common auxiliary raw materials can be added when necessary;
the inert alkane is one of n-hexane, isooctane, isopentane, neopentane and heptane, and the prepared expandable hollow microsphere can obtain the same or similar effect no matter which alkane is used.
The expandable hollow microspheres of the invention are further optimized as follows:
wherein the weight ratio of methyl methacrylate, 1-dichloroethylene and acrylonitrile in the three monomers is 10-30. In this example, the weight ratio of methyl methacrylate, 1-dichloroethylene and acrylonitrile was chosen to be 20.
By using the optimized proportion in the range, the prepared expandable hollow microspheres can obtain better expansion effect, and can obtain better suspension property in the subsequent use of the coating, thereby achieving the purposes of improving the storage stability of the coating and prolonging the storage time of the product
Example 3 preparation of an optimized expandable hollow microsphere
An optimized preparation method of expandable hollow microspheres comprises the following components in parts by weight:
wherein the inert alkane is one of n-hexane, isooctane, isopentane, neopentane and heptane;
in this embodiment, it comprises the following specific components in parts by weight:
wherein the three monomers comprise the following components in parts by weight:
10-30 parts of methyl methacrylate;
5-10 parts of 1, 1-dichloroethylene;
60-85 parts of acrylonitrile;
the sum of all components in the three monomers is 100 parts by weight.
In this example, the amounts of methyl methacrylate, 1-dichloroethylene and acrylonitrile were 15 parts, 5 parts and 80 parts, respectively.
The preparation method of the expandable hollow microsphere comprises the following steps:
the preparation method comprises the following preparation steps:
A. adding water and a surfactant into a reaction kettle and uniformly stirring;
B. adding three monomers, inert alkane and an initiator according to a proportion, strongly stirring uniformly and carrying out polymerization reaction;
C. adding a surface treating agent into the slurry obtained after the polymerization reaction is finished according to a proportion;
D. filtering, washing and drying to obtain basic microspheres;
E. the basic microsphere is heated for 3 to 7 hours at the temperature of between 100 and 200 ℃ to obtain the expandable hollow microsphere.
By using the optimized preparation method of the expandable hollow microspheres, the prepared expandable hollow microspheres can obtain better expansion effect, and can obtain more efficient suspension property in the subsequent use of the coating, thereby achieving the purpose of improving the storage stability of the coating and prolonging the storage time of the product to the maximum extent.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; those skilled in the art should also realize that such equivalent variations, modifications, and alterations are possible in light of the above teachings without departing from the spirit and scope of the present invention; meanwhile, any equivalent changes, modifications and evolution made to the above embodiments according to the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The experimental method of the present invention, in which the specific conditions are not specified, is generally carried out under the conventional conditions or the conditions recommended by the manufacturers.
The various optimized technical schemes in the invention can be combined with each other unless otherwise stated.
Unless otherwise indicated, percentages and parts are percentages and parts by weight.
The experimental procedures described in the specification and examples, which do not specify specific conditions, are generally carried out under the conditions which are customary or recommended by the manufacturers.
The various starting materials, reagents, components used in the present invention are, unless otherwise indicated, the corresponding starting materials commonly used in the art.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, any methods and materials similar or equivalent to those described herein can be used in the methods of the present invention.
Claims (10)
1. An expandable hollow microsphere, comprising:
the polymer shell is a terpolymer, and three monomers of the terpolymer are methyl methacrylate, 1-dichloroethylene and acrylonitrile respectively;
wherein the inert alkane is one of n-hexane, isooctane, isopentane, neopentane and heptane.
2. The expandable hollow microsphere of claim 1, wherein:
wherein the weight ratio of methyl methacrylate, 1-dichloroethylene and acrylonitrile in the three monomers is 10-30.
3. The expandable hollow microsphere of claim 1, wherein:
the paint comprises the following components in parts by weight:
wherein the inert alkane is one of n-hexane, isooctane, isopentane, neopentane and heptane;
wherein the three monomers comprise the following components in parts by weight:
10-30 parts of methyl methacrylate;
5-10 parts of 1, 1-dichloroethylene;
60-85 parts of acrylonitrile;
the sum of all components in the three monomers is 100 parts by weight.
4. A method for preparing expandable hollow microspheres according to claim 1 or 2, wherein:
heating the polymer shell to 100-200 ℃ until the inert alkane wrapped in the polymer shell is gasified, so that the volume of the microsphere is expanded to form a hollow structure, thereby obtaining the expandable hollow microsphere.
5. A method for preparing expandable hollow microspheres according to claim 3, wherein:
the preparation method comprises the following preparation steps:
A. adding water and a surfactant into a reaction kettle and uniformly stirring;
B. adding three monomers, inert alkane and an initiator according to a proportion, strongly stirring uniformly and carrying out polymerization reaction;
C. adding a surface treating agent into the slurry obtained after the polymerization reaction is finished according to a proportion;
D. filtering, washing and drying to obtain basic microspheres;
E. the basic microsphere is heated for 3 to 7 hours at the temperature of between 100 and 200 ℃ to obtain the expandable hollow microsphere.
6. A novel hollow material is characterized in that:
the novel hollow material comprises a mixture consisting of expandable hollow microspheres and water, wherein the weight of the expandable hollow microspheres and the water is 15-25.
7. A sand-containing stone-like coating is characterized in that:
comprising the novel hollow material of claim 6.
8. The sand-containing stone-like coating according to claim 7, characterized in that:
the paint comprises the following components in parts by weight:
10-20 parts of protective glue solution, 50-70 parts of color mixing paint and 15-25 parts of coating emulsion, and deionized water for supplementing the balance, wherein the total weight part is 100 parts;
wherein the protective glue solution is: 5-10 parts of protective glue and 90-95 parts of deionized water;
wherein the color mixing paint is as follows: 15 to 20 portions of emulsion, 1 to 5 portions of pigment and filler, 0.5 to 5 portions of cosolvent, 0.5 to 5 portions of auxiliary agent, 0.5 to 3 portions of novel hollow material, 20 to 30 portions of white sand, 5 to 10 portions of protective glue solution, and deionized water to supplement the balance, wherein the total weight portion is 100 portions;
wherein the coating emulsion is: 40 to 60 parts of emulsion, 0.5 to 5 parts of cosolvent, 0.5 to 5 parts of auxiliary agent and deionized water for supplementing the balance, wherein the total weight part is 100 parts.
9. The sand-containing stone-like coating according to claim 8, characterized in that:
the main component of the protective adhesive is synthetic flaky magnesium aluminum silicate; and/or
The emulsion is one or a combination of a plurality of styrene-acrylic emulsion, pure acrylic emulsion and silicone acrylic emulsion.
10. A method for preparing the sand-containing stone-like coating of claim 8, which is characterized in that:
the preparation method comprises the following preparation steps:
A. preparation of a protective colloid solution: slowly adding the protective adhesive into deionized water, dispersing at high speed for 30min to obtain protective adhesive solution, and standing for 24 h;
B. preparing a color mixing paint: adding an auxiliary agent and a pigment filler into deionized water, dispersing at a high speed for 20min, then adding an emulsion, a cosolvent and a novel hollow material, dispersing at a low speed for 10min, then adding white sand and the protective glue solution, and stirring at a low speed for 10min until the mixture is uniform to obtain a color mixing paint;
C. preparation of coating emulsion: uniformly mixing the emulsion, the cosolvent, the auxiliary agent and deionized water at a low speed to prepare a coating emulsion;
D. preparing the sand-containing stone-proof coating: and uniformly mixing the protective glue solution and deionized water at a low speed, adding the color mixing paint, cutting color points to a proper size according to requirements in a granulation mode, then adding the coating emulsion, and uniformly stirring at a low speed to prepare the sand-containing stone-like coating.
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