CN110228970B - Real stone paint with good anti-fouling and self-cleaning capabilities and preparation method thereof - Google Patents
Real stone paint with good anti-fouling and self-cleaning capabilities and preparation method thereof Download PDFInfo
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- CN110228970B CN110228970B CN201910572001.6A CN201910572001A CN110228970B CN 110228970 B CN110228970 B CN 110228970B CN 201910572001 A CN201910572001 A CN 201910572001A CN 110228970 B CN110228970 B CN 110228970B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/30—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds
- C04B26/32—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds containing silicon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
- C04B2111/2069—Self cleaning materials, e.g. using lotus effect
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2092—Resistance against biological degradation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a stone-like paint with good anti-fouling and self-cleaning capabilities and a preparation method thereof, wherein the method comprises the following steps: 15-25% of silicone-acrylic emulsion, 60-70% of natural quartz sand and modified hollow glass beads, 1-2% of titanium dioxide nanosheets exposing crystal faces of {001} and { 101 }, 5-10% of nano silicon dioxide/polyvinyl alcohol colloid mixed solution, 2-3% of expanded and vitrified bead thermal insulation mortar, 0.05-0.1% of carboxymethyl cellulose, 0.01-0.02% of polyacrylamide, 0.01-0.1% of wetting agent, 0.01-0.5% of dispersing agent, 0.01-0.05% of defoaming agent, 0.05-0.5% of film forming additive, 0.1-0.3% of thickening agent and the balance of water. The stone-like paint disclosed by the invention can achieve good anti-pollution and self-cleaning effects, is not easily polluted by rainwater and is not easily stained, so that a large amount of manpower, material resources and financial resources are saved, and the social benefit is obvious; the antibacterial air purifier has the capabilities of resisting bacteria and purifying air, and is more environment-friendly; also has fire resistance, heat preservation and heat insulation.
Description
Technical Field
The invention relates to the technical field of building coatings, in particular to a stone-like paint with good anti-fouling and self-cleaning capabilities and a preparation method thereof.
Background
The stone paint is a thick building coating prepared by taking synthetic resin emulsion as a base material, taking natural colored sand with different particle sizes as aggregate and adding various auxiliary agents. Compared with the traditional ceramic tile pasting and stone dry hanging, the stone paint has the remarkable advantages of convenience in construction, low cost, safety, no toxicity, natural elegance, durability, decorative effect closest to stone and the like, and is more and more favored. However, after the stone paint is brushed, under the conditions that the weather phenomena such as haze, light fog, sand storm, raised sand, floating dust and the like are more serious and a little more, dust, dirt and the like can be adhered to the stone paint inevitably, and the overall beautiful effect of the stone paint is influenced. Repeated cleaning consumes a large amount of manpower, material resources and financial resources, and the personal safety can be endangered by high-altitude operation. Therefore, the improvement of the anti-fouling performance of the stone-like paint is a technical problem to be solved urgently in the field.
The self-cleaning capability is a property of automatically dropping and removing pollutants or dust particles on the surface of an object under the action of external force such as gravity, rainwater, wind power and the like. The surface of the material with self-cleaning performance generally has a compact micro-nano rough structure and a substance with low surface energy.
Nano TiO 22As one of the main nano materials, the photocatalyst, the ultraviolet shielding and the effect of the flip flop become hot spots of the research at home and abroad. Nano TiO 22The surface has super-hydrophilic performance, so that the surface has the function of chemically adsorbing water, and the nano TiO-containing coating is coated on the surfaces of glass, ceramic tiles, aluminum alloy and other building materials2After the coating is prepared, the surface has multiple functions of antifouling, antifogging, waterproofing and the like, and also has self-cleaning function of easy washing and easy drying, so that the coating can be used for antifogging films, super-hydrophilic coatings, antifogging glass, self-cleaning coating preparation and the like. Nano TiO 22 The photocatalytic effect can be prepared into antibacterial coating, air purifying coating and the like, and the coating not only has the function of purifying indoor VOC and NH3And other polluting gases, and can degrade other pollutants in the atmosphere, such as automobile exhaust gas, halogenated hydrocarbon, sulfide, aldehydes, polycyclic aromatic hydrocarbon and the like.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a stone-like paint with good anti-fouling and self-cleaning capabilities.
A stone-like paint with good anti-fouling and self-cleaning capabilities comprises the following components in percentage by weight:
15-25% of silicone-acrylate emulsion
60-70% of natural quartz sand and modified hollow glass beads
1-2% of titanium dioxide nanosheets exposing {001} and { 101 } crystal faces simultaneously
5-10% of nano silicon dioxide/polyvinyl alcohol colloid mixed liquor
2 to 3 percent of expanded and vitrified small ball thermal insulation mortar
Carboxymethyl cellulose 0.05-0.1%
0.01 to 0.02 percent of polyacrylamide
0.01 to 0.1 percent of wetting agent
0.01 to 0.5 percent of dispersant
0.01 to 0.05 percent of defoaming agent
0.05 to 0.5 percent of film-forming additive
0.1 to 0.3 percent of thickening agent
The balance of water.
Co-exposure of {001} and { 101 } crystal planes of TiO2The nanosheets commonly expose the {001} and { 101 } crystal planes of TiO due to the unique photoproduction electron-hole pair separation capacity2The {001} crystal face of the nano sheet is rich in oxygen vacancy and unsaturated Ti3+The defect sites, photo-generated electrons and holes have stronger redox capability and better photocatalytic activity.
The nano silicon dioxide is added into the polyvinyl alcohol colloid, and the nano silicon dioxide is uniformly dispersed by adopting physical dispersing force, so that the dispersibility of the silicon dioxide is greatly improved, the nano silicon dioxide and the polyvinyl alcohol colloid are combined through chemical bonding force to form a stable composite system, the uniform distribution form of the nano silicon dioxide in the colloid can stably exist for a long time, the interface compatibility among the nano silicon dioxide, the natural quartz sand and the modified hollow glass microspheres can be increased, and the viscosity and the rheological property of a real stone paint system can be improved. Nano SiO2The addition of the modified polyurethane resin into the stone-like paint can improve the hardness, scratch resistance and weather resistance of the stone-like paint.
The expanded and vitrified small ball thermal insulation mortar is prepared by taking ordinary portland cement, expanded and vitrified small balls, fly ash, chopped fiber and various additives as main raw materials. The expanded and vitrified small ball thermal insulation mortar is formed by the expanded and vitrified small ball thermal insulation adhesive powder. The combustion performance of the expanded and vitrified small ball thermal insulation mortar is A grade. The composite material has the characteristics of high fire resistance, high heat preservation and heat insulation, high specific strength, no toxicity, no harm, long service life and the like, and is not easy to crack.
The carboxymethyl cellulose can generate a crosslinking effect with the silicone-acrylate emulsion, so that the silicone-acrylate emulsion is thickened and better retains water, and the surface of the stone-like paint cannot generate the phenomenon of small water drops, because the carboxymethyl cellulose can well lock the water inside the slurry and prevent the water from migrating to the surface. The carboxymethyl cellulose also has a certain disinfection effect. However, the addition amount of carboxymethyl cellulose should not be too large, and if the addition amount is too large, the viscosity is too viscous, and the use is affected by the easy caking.
The polyacrylamide with the reticular molecular structure can adjust the rheological property of the real stone paint, has better flow stability, and is less prone to generating cracks when applied to the real stone paint. On the other hand, poly, acrylamide can also function as a defoamer.
Preferably, the mass ratio of the nano silicon dioxide to the polyvinyl alcohol colloid in the nano silicon dioxide/polyvinyl alcohol colloid mixed solution is 1: 5; the concentration of the polyvinyl alcohol colloid was 6%.
The preparation method of the polyvinyl alcohol colloidal solution comprises the steps of adding polyvinyl alcohol powder into water, uniformly stirring for 10-20 minutes at normal temperature to enable polyvinyl alcohol particles to fully swell in the water, and then placing the mixture into a constant-temperature magnetic stirrer at 90 ℃ to stir for 40-50 minutes.
The preparation method of the mixed solution of the nano silicon dioxide and the polyvinyl alcohol colloid comprises the following steps: firstly, putting the polyvinyl alcohol colloidal solution into a constant-temperature ultrasonic disperser at 70-80 ℃, slowly adding the nano-silicon dioxide while stirring, and stirring for 2-3h to obtain uniformly dispersed nano-silicon dioxide/polyvinyl alcohol colloidal mixed solution.
Preferably, the particle size of the silicone-acrylic emulsion is about 0.1 μm, the pH value is 7-9, the viscosity is 1000-2000 mPa.s, and the silicon content > 10%. At the moment, the real stone paint has optimal water resistance, alkali resistance, aging resistance, bonding strength and other properties.
Preferably, the weight percentage content of the modified hollow glass bead is 10-60%.
Preferably, the wetting agent has an HLB value of from 11 to 13. The wetting agent with HLB value of 11-13 is the most suitable for the water resistance and the fluidity of the stone paint.
Preferably, the dispersant is an ammonia salt dispersant having water resistance. The ammonia salt dispersant with good water resistance can improve the water resistance of the real stone paint.
Preferably, the modified hollow glass beads are prepared by cleaning hollow glass beads, treating the hollow glass beads with sodium hydroxide to obtain hollow glass beads, hydroxylating the hollow glass beads, adding 2, 2-dimethylolpropionic acid and the hollow glass beads subjected to surface hydroxylation treatment according to a molar ratio of 1:1, adding the materials every 2 hours, and reacting for 8 hours; saturated long-chain alkanoic acids are added. The modified hollow glass bead has better compatibility and super-strong hydrophobicity after being modified by the silicone-acrylate emulsion.
Preferably, the particle size of the natural quartz sand is 40-70 meshes.
Preferably, the particle size of the titanium dioxide nanosheet with the {001} and { 101 } crystal faces exposed simultaneously is 100-300 nm; the particle size of the nano silicon dioxide is 20-200 nm.
The preparation method of the stone-like paint with good anti-fouling and self-cleaning capabilities mainly comprises the following steps:
(1) weighing the components according to the proportion;
(2) sequentially adding water, carboxymethyl cellulose, polyacrylamide, silicone-acrylate emulsion, wetting agent, dispersing agent, defoaming agent and film-forming auxiliary agent, and stirring and mixing for 10-20 min;
(3) adding natural quartz sand, modified hollow glass beads, nano silicon dioxide/polyvinyl alcohol colloid mixed liquor and titanium dioxide nanosheets exposing crystal faces {001} and { 101 } simultaneously, stirring and mixing for 20-30 min;
(4) adding thickener, and packaging.
Compared with the prior art, the method adds TiO with co-exposed crystal faces of {001} and { 101 } in the real stone paint2The nano-sheet has better photocatalytic activity, so that the real stone paint has better capabilities of resisting pollution, self-cleaning, resisting bacteria and purifying air, and is more environment-friendly. According to the invention, the nano silicon dioxide is added into the polyvinyl alcohol colloid, so that the uniform distribution of the nano silicon dioxide in the colloid can exist stably for a long time, the interface compatibility between the nano silicon dioxide and the natural quartz sand and between the nano silicon dioxide and the modified glass beads can be increased, and the viscosity, rheological property, hardness, scratch resistance and weather resistance of the real stone paint system can be improvedAnd (4) sex. The invention also adds the expanded and vitrified micro-bead thermal insulation mortar into the stone-like paint to improve the fire resistance, thermal insulation and heat insulation of the stone-like paint. The stone-like paint disclosed by the invention can achieve good anti-pollution and self-cleaning effects, is not easily polluted by rainwater and is not easily stained, so that a large amount of manpower, material resources and financial resources are saved, and the social benefit is obvious.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below.
Examples 1 to 8
The stone-like paints with good anti-fouling and self-cleaning capabilities of examples 1-8 comprised the components in the weight percentages shown in table 1.
TABLE 1 compositions and weight percents of self-cleaning real stone paint of examples 1-8 with glass beads as aggregate
| Components | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | Example 8 |
| Silicone-acrylic emulsion | 15 | 25 | 20 | 20 | 20 | 20 | 20 | 20 |
| Natural quartz sand | 50 | 10 | 30 | 30 | 30 | 30 | 30 | 30 |
| Modified hollow glass bead | 10 | 60 | 30 | 0 | 30 | 30 | 30 | 30 |
| Titanium dioxide nanosheet capable of simultaneously exposing {001} and { 101 } crystal faces | 1 | 2 | 1.5 | 1.5 | 0 | 1.5 | 1.5 | 1.5 |
| Nano silicon dioxide/polyvinyl alcohol colloid mixed liquor | 5 | 10 | 8 | 8 | 8 | 0 | 8 | 8 |
| Expanded and vitrified micro-bead thermal insulation mortar | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Carboxymethyl cellulose | 0.05 | 0.1 | 0.08 | 0.08 | 0.08 | 0.08 | 0 | 0.08 |
| Polyacrylamide | 0.01 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0 |
| Wetting agent | 0.01 | 0.1 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Dispersing agent | 0.01 | 0.5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Defoaming agent | 0.01 | 0.05 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
| Film forming aid | 0.05 | 0.5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Thickening agent | 0.1 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Unmodified hollow glass microspheres | 0 | 0 | 0 | 30 | 0 | 0 | 0 | 0 |
| Titanium dioxide nanosheet | 0 | 0 | 0 | 0 | 1.5 | 0 | 0 | 0 |
| Nano silicon dioxide | 0 | 0 | 0 | 0 | 0 | 1.33 | 0 | 0 |
| Water (W) | Balance of | Balance of | Balance of | Balance of | Balance of | Balance of | Balance of | Balance of |
Wherein the mass ratio of the nano silicon dioxide to the polyvinyl alcohol colloid in the nano silicon dioxide/polyvinyl alcohol colloid mixed solution is 1: 5; the concentration of the polyvinyl alcohol colloid was 6%. The particle size of the silicone-acrylic emulsion is about 0.1 mu m, the pH value is 7-9, the viscosity is 1000-2000 mPa & s, and the silicon content is more than 10 percent. The wetting agent has an HLB value of 11-13. The particle size of the natural quartz sand is 40-70 meshes. The grain diameter of the titanium dioxide nanosheet exposing the {001} and { 101 } crystal faces is 100-300 nm; the particle size of the nano titanium dioxide is 20-200 nm.
The preparation method of the polyvinyl alcohol colloidal solution comprises the steps of adding polyvinyl alcohol powder into water, uniformly stirring for 10-20 minutes at normal temperature to enable polyvinyl alcohol particles to fully swell in the water, and then placing the mixture into a constant-temperature magnetic stirrer at 90 ℃ to stir for 40-50 minutes.
The preparation method of the mixed solution of the nano silicon dioxide and the polyvinyl alcohol colloid comprises the following steps: firstly, putting the polyvinyl alcohol colloidal solution into a constant-temperature ultrasonic disperser at 70-80 ℃, slowly adding the nano-silicon dioxide while stirring, and stirring for 2-3h to obtain uniformly dispersed nano-silicon dioxide/polyvinyl alcohol colloidal mixed solution.
The modified hollow glass bead is prepared by cleaning hollow glass beads, treating the hollow glass beads with sodium hydroxide to obtain hollow glass beads, hydroxylating the hollow glass beads, adding 2, 2-dimethylolpropionic acid and the hollow glass beads subjected to surface hydroxylation treatment according to a molar ratio of 1:1, adding the materials every 2 hours, and reacting for 8 hours; saturated long-chain alkanoic acids are added.
The preparation method of the stone-like paint with good anti-fouling and self-cleaning capabilities mainly comprises the following steps:
(1) weighing the components according to the proportion;
(2) sequentially adding water, carboxymethyl cellulose, polyacrylamide, silicone-acrylate emulsion, wetting agent, dispersing agent, defoaming agent and film-forming auxiliary agent, and stirring and mixing for 10-20 min;
(3) adding natural quartz sand, modified hollow glass beads, nano silicon dioxide/polyvinyl alcohol colloid mixed liquor and titanium dioxide nanosheets exposing crystal faces {001} and { 101 } simultaneously, stirring and mixing for 20-30 min;
(4) adding thickener, and packaging.
1. The performance-related tests and comparison of results for examples 1-3 are shown in Table 2.
TABLE 2 comparison of Performance related measurements for examples 1-3
Wherein, the stain resistance detection standard is as follows: JGT24-2000 synthetic resin emulsion sand wall building coating W type requires less than or equal to 2 grade after 5 times of cycle test.
2. The performance-related tests and comparison of results for examples 4-8 are shown in Table 2.
TABLE 2 comparison of Performance related assays for examples 4-8
Claims (7)
1. The stone-like paint with good anti-fouling and self-cleaning capabilities is characterized by comprising the following components in percentage by weight:
15-25% of silicone-acrylate emulsion
60-70% of natural quartz sand and modified hollow glass beads
1-2% of titanium dioxide nanosheets exposing {001} and { 101 } crystal faces simultaneously
5-10% of nano silicon dioxide/polyvinyl alcohol colloid mixed liquor
2 to 3 percent of expanded and vitrified small ball thermal insulation mortar
Carboxymethyl cellulose 0.05-0.1%
0.01 to 0.02 percent of polyacrylamide
0.01 to 0.1 percent of wetting agent
0.01 to 0.5 percent of dispersant
0.01 to 0.05 percent of defoaming agent
0.05 to 0.5 percent of film-forming additive
0.1 to 0.3 percent of thickening agent
The balance of water;
the mass ratio of the nano silicon dioxide to the polyvinyl alcohol colloid in the nano silicon dioxide/polyvinyl alcohol colloid mixed solution is 1: 5; the concentration of the polyvinyl alcohol colloid is 6 percent;
the modified hollow glass bead is prepared by cleaning hollow glass beads, treating the hollow glass beads with sodium hydroxide to obtain hollow glass beads, hydroxylating the hollow glass beads, adding 2, 2-dimethylolpropionic acid and the hollow glass beads subjected to surface hydroxylation treatment according to a molar ratio of 1:1, adding the materials every 2 hours, and reacting for 8 hours; saturated long-chain alkanoic acids are added.
2. The stone-like paint with good anti-fouling and self-cleaning capabilities as claimed in claim 1, wherein the silicone-acrylic emulsion has a particle size of 0.1 μm, a pH value of 7-9, a viscosity of 1000-2000 mPa-s, and a silicon content > 10%.
3. The stone-like paint with good antifouling and self-cleaning capabilities as claimed in claim 1, wherein the weight percentage of the modified hollow glass beads is 10-60%.
4. The stone-like paint with good antifouling and self-cleaning capabilities as claimed in claim 1, wherein the HLB value of the wetting agent is 11-13.
5. The stone-like paint with good antifouling and self-cleaning capabilities as claimed in claim 1, wherein the dispersant is an ammonia salt dispersant with water resistance.
6. The stone-like paint with good anti-pollution and self-cleaning functions as claimed in claim 1, wherein the natural quartz sand has a particle size of 40-70 meshes.
7. The stone-like paint with good anti-pollution and self-cleaning capabilities as claimed in claim 1, wherein the particle size of the titanium dioxide nanosheets simultaneously exposing {001} and { 101 } crystal faces is 100-300 nm; the particle size of the nano silicon dioxide is 20-200 nm.
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| CN110759668B (en) * | 2019-10-21 | 2021-12-17 | 济宁学院 | Anti-cracking self-cleaning stone-like paint and preparation method thereof |
| CN111978725A (en) * | 2020-07-28 | 2020-11-24 | 凯正包装科技(广东)有限公司 | Antibacterial high-temperature-aging-resistant polyimide film and preparation method thereof |
| CN114958130B (en) * | 2022-07-08 | 2023-02-28 | 亚士创能科技（滁州）有限公司 | Stone-like coating and preparation method and application thereof |
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