CN111040605A - Multifunctional single-component water-based interior wall paint and preparation method thereof - Google Patents
Multifunctional single-component water-based interior wall paint and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention discloses a multifunctional single-component water-based interior wall paint and a preparation method thereof, wherein the multifunctional single-component water-based interior wall paint comprises 20-30 parts of water-based polyurethane resin, 10-20 parts of water-soluble acrylic resin, 22-35 parts of pigment and filler, 3-5 parts of nano silver sol, 1-3 parts of composite nano anion powder, 1-4 parts of propylene glycol, 1-2 parts of dispersing agent, 1-2 parts of wetting agent, 1-2 parts of thickening agent, 0.1-0.5 part of defoaming agent and 20-35 parts of water. The multifunctional single-component water-based interior wall paint disclosed by the invention is good in mildew resistance, good in adhesive force, high in drying speed, good in washing resistance, capable of releasing negative ions beneficial to a human body and beneficial to the health of the human body.
Description
Technical Field
The invention relates to the technical field of water-based paint, and particularly relates to multifunctional single-component water-based interior wall paint and a preparation method thereof.
Background
With the gradual improvement of living standard of people, the requirement on the quality of interior decoration is higher and higher, and the quality of interior wall coating is more and more concerned by people as an important component of home decoration. At present, although many functional coatings, such as coatings with the functions of heat preservation, heat insulation, flame retardance, sound insulation and the like, exist in the market, the influence of the coatings on human bodies cannot be really improved. The coating has the advantages that various harmful microorganisms exist in the living environment of people, particularly in a humid environment, the microorganisms are easy to breed, indoor walls are easy to mildew and blacken, and the damage to human bodies is easy to cause, and the phenomenon is more common in the humid south such as Guangdong areas, and the coating which is antibacterial, mildewproof and beneficial to human health is an important direction for future development. The antibacterial agent can be divided into an organic antibacterial agent and an inorganic antibacterial agent, the organic antibacterial agent is a traditional antibacterial agent and is widely applied in the medical field and the industry and agriculture, such as benzimidazole, pyridine, quaternary ammonium salt, organotin, organic arsenic and the like, and the organic antibacterial agent has the problems of poor heat resistance, poor safety and the like, and has poor antibacterial, mildewproof and long-acting properties. The inorganic antibacterial agent has the advantage of high-efficiency spectrum, and the existing coating has two inorganic antibacterial agents, one of which is nano TiO2The typical photocatalytic antibacterial agent has antibacterial property only under ultraviolet irradiation, and is not suitable for indoor coating; the other is a metal ion antibacterial agent or a nano metal particle antibacterial agent, such as metal ions of silver, copper, zinc and the like or nano silver and the like, the metal ion antibacterial agent is easy to run off in the coating, and the nano metal particle antibacterial agent is easy to agglomerate, so that the performance of the antibacterial coating is reduced. Therefore, a multifunctional water-based antibacterial interior wall paint with good and lasting antibacterial effect, benefit to human body and excellent comprehensive performance is required.
Disclosure of Invention
The invention aims to overcome at least one defect of the prior art and provides the multifunctional single-component water-based interior wall paint which has the advantages of good antibacterial and mildew resistance, good adhesive force, high drying speed, good washing and brushing resistance, capability of releasing anions beneficial to human bodies and benefit for human health.
The invention also aims to provide a preparation method of the multifunctional single-component water-based interior wall paint.
The technical scheme adopted by the invention is as follows:
a multifunctional single-component water-based interior wall paint comprises the following components in parts by mass:
20-30 parts of waterborne polyurethane resin;
10-20 parts of water-soluble acrylic resin;
22-35 parts of pigment and filler;
3-5 parts of nano silver sol;
1-3 parts of composite nano anion powder;
1-4 parts of propylene glycol;
1-2 parts of a dispersing agent;
1-2 parts of a wetting agent;
1-2 parts of a thickening agent;
0.1-0.5 part of defoaming agent;
20-30 parts of water;
the nano silver sol is prepared by the following method:
step (1): dropwise adding 2-4% ammonia water into 5 parts of 2-4% silver nitrate solution, and continuously shaking the mixture in the dropwise adding process until the initial precipitate is just dissolved to obtain a silver ammonium solution;
step (2): mixing and stirring 0.5-2 parts of fructose, 2.5-5 parts of water, 0.5-1 part of hydroxypropyl methyl cellulose and 0.5-1 part of AMP-95 uniformly;
and (3): and (2) controlling the temperature of the mixed solution obtained in the step (1) to be 30-40 ℃, stirring at the speed of 100-150 rpm, dropwise adding the mixed solution obtained in the step (2), uniformly stirring, increasing the temperature to 40-50 ℃ after dropwise adding, rotating at the speed of 500-800 rpm, and continuously stirring for 1-1.5 hours to obtain the nano-silver sol.
The invention takes nano-silver sol as an antibacterial agent, and composite nano-anion powder is added into emulsion taking aqueous polyurethane resin and water-soluble acrylic resin as film-forming components, so as to prepare the multifunctional single-component aqueous interior wall paint which has good antibacterial and mildew-proof properties, a function of releasing anions and excellent comprehensive mechanical properties, wherein the nano-silver sol is a silver ammonium solution prepared by reacting silver nitrate solution and ammonia water, fructose can reduce silver ions in the silver ammonium solution into nano-silver, hydroxypropyl methyl cellulose can be dissolved in water to form clear or slightly turbid colloidal solution, and the nano-silver sol can be used as an emulsifier and a protective agent, and has good dispersibility and emulsion stability; AMP-95 is a multifunctional amine assistant, alcoholic hydroxyl in AMP-95 has an adsorption effect on inorganic pigment, so that the surface of the inorganic pigment is provided with positive charges, Ag can be deflocculated under the action of electrostatic repulsion, AMP-95 also has good steric hindrance, and the agglomeration of Ag can be reduced, so that the Ag is uniformly and stably dispersed in a system, and thus the prepared nano silver single-component sol latex has good stability and dispersibility, and the antibacterial Ag is good in dispersibility and difficult to agglomerate in the multifunctional water-based interior wall paint. The negative ions are used for protecting the environment, the negative ion air is called as longevity element or air vitamin, and the negative ions have the health care functions of improving the blood circulation of a human body, inhibiting bacteria and improving the immunity and the vitality of the human body. The composite nanometer anion powder can be used for coating the inner wall to continuously release high-concentration anions, remove indoor harmful substances through the actions of electrical neutralization, chemical reaction, adsorption and the like, purify indoor air, radically change the influence of the coating on human health, and is beneficial to human health.
Preferably, the composite nano negative ion powder is compounded by tourmaline powder, graphene and nano zinc oxide, and the mass ratio of the tourmaline powder to the graphene to the nano zinc oxide is 1: (0.5-1): (0.2-0.5). The tourmaline of the composite nanometer negative ion powder has strong adsorption performance, the water absorption rate is more than 70%, toxic and harmful gas and peculiar smell in a room can be adsorbed, tiny dust and redundant moisture in air in the room can be adsorbed, the tourmaline also has the function of releasing negative ions permanently, the tourmaline powder has permanent spontaneous electrical property, the graphene has very high carrier mobility, the tourmaline and the graphene interact, so that the tourmaline continuously forms a high-voltage electric field, air is ionized, a large number of negative ions are released, a pure ecological negative ion bath environment is formed in space, and the generation quantity and quality of the negative ions are effectively improved; the nano zinc oxide can also play a role in sterilization and deodorization under the condition of no light. According to the invention, the quality of the water-based interior wall paint is further improved through the tourmaline powder, the graphene and the nano zinc oxide, the antibacterial performance is further improved, negative ions beneficial to a human body are released, and the use feeling of a user is improved.
Preferably, the aqueous polyurethane resin is anionic aqueous polyurethane with the solid content of 25-40% and the viscosity of not more than 500 cps. More preferably, the aqueous polyurethane resin is L-2812 of Kyowa synergistic Polymer Co., Ltd. L-2812 is non-yellowing soft water-based PU, has good dispersibility, and a skin film thereof is tough and elastic, can endow a paint film with greasy and elastic handfeel, improves the quality of interior wall paint, and also has excellent recovery property.
Preferably, the water-soluble acrylic resin is a water-soluble acrylic resin with a molecular weight of 3000-4000. More preferably, the water-soluble acrylic resin is M-331 water-soluble acrylic resin from Hengdong chemical products, Inc. of Guangzhou. The M-331 water-soluble acrylic resin has good wettability and color-spreading capability to pigment and filler, good film-forming property, excellent adhesive force, high drying speed and good miscibility with other water-based resins.
Preferably, the pigment and filler is at least two of calcium carbonate, calcined kaolin and titanium dioxide.
More preferably, the pigment and filler comprises 5-10 parts of calcium carbonate, 1-5 parts of calcined kaolin and 15-25 parts of titanium dioxide.
The dispersant is an anionic wetting dispersant and/or a macromolecular hyperdispersant.
The preparation method of the multifunctional single-component water-based interior wall paint comprises the following steps:
s1, dispersing a wetting agent and a dispersing agent in water, uniformly stirring, adding a pigment filler and composite nano anion powder, dispersing for 30-60 min at the rotating speed of 1000-2000 rpm, and grinding by using a sand mill until the fineness is not more than 30 mu m to obtain slurry, wherein the using amount of water is 60-70% of the total amount;
s2, uniformly mixing the water-based polyurethane resin, the water-soluble acrylic resin, the thickening agent, the defoaming agent, propylene glycol, the balance of water and the nano-silver sol;
and S3, gradually adding the mixture obtained in the step S2 into the mixture obtained in the step S1, stirring at 500-1000 rpm for 30-60 min, and filtering to obtain the multifunctional single-component water-based interior wall paint.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the special nano silver sol replaces the traditional antibacterial agent and is added into the aqueous polyurethane resin and the water-soluble acrylic resin, the nano silver sol latex has good stability and good dispersibility, the antibacterial Ag has good dispersibility in the multifunctional single-component aqueous interior wall paint and is not easy to agglomerate, and the prepared multifunctional single-component aqueous interior wall paint has good antibacterial and mildew resistance;
(2) the composite nanometer negative ion powder can continuously release high-concentration negative ions after being used for the inner wall coating, removes indoor harmful substances through the actions of electrical neutralization, chemical reaction, adsorption and the like, purifies indoor air, radically changes the influence of the coating on human health, and is beneficial to the human health.
(3) The water-soluble acrylic resin has good film forming property, good adhesive force, high drying speed and strong adhesive force for the interior wall paint. Smooth quality and rapid curing.
Detailed Description
The present invention is further illustrated by the following specific examples, which are provided to assist in understanding the invention and are not to be construed as limiting the invention.
The following examples used the following sources of starting materials:
the water-soluble acrylic resin is from M-331 of Hengdong chemical products, Inc. of Guangzhou city;
aqueous polyurethane resin: l-2812 of Guangzhou product macromolecules, Inc.
Other raw materials which are not particularly described are all common commercial products.
The nano-silver sol described in the following example was prepared by the following method:
step (1): dropwise adding 3% ammonia water into 5 parts of 3% silver nitrate solution, and continuously shaking the mixture during the dropwise adding process until the initial precipitate is just dissolved to obtain a silver-ammonium solution;
step (2): mixing 1 part of fructose, 5 parts of water, 0.8 part of hydroxypropyl methylcellulose and 0.75 part of AMP-95, and uniformly stirring;
and (3): and (2) controlling the temperature of the mixed solution obtained in the step (1) to be 30-40 ℃, stirring at the speed of 100-150 rpm, dropwise adding the mixed solution obtained in the step (2), uniformly stirring, increasing the temperature to 40-50 ℃ after dropwise adding, rotating at the speed of 500-800 rpm, and continuously stirring for 1-1.5 hours to obtain the nano-silver sol.
The composite nanoanion powders described in the following examples include: 55% of nano tourmaline powder, 30% of nano graphene and 15% of nano zinc oxide.
Example 1
A multifunctional single-component water-based interior wall paint comprises the following components in parts by mass:
25 parts of waterborne polyurethane resin;
18 parts of water-soluble acrylic resin;
24 parts of pigment and filler;
4 parts of nano silver sol;
2 parts of composite nano anion powder;
3 parts of propylene glycol;
1.3 parts of a dispersing agent;
1.2 parts of a wetting agent;
1.3 parts of a thickening agent;
0.2 part of defoaming agent;
20 parts of water;
wherein, the pigment and filler comprises 8 parts of calcium carbonate, 2.5 parts of calcined kaolin and 13.5 parts of titanium dioxide.
The preparation process of the multifunctional single-component water-based interior wall paint is as follows:
s1, dispersing a wetting agent and a dispersing agent in 15 parts of water, uniformly stirring, adding a pigment, a filler and composite nano anion powder, dispersing for 30-60 min at the rotating speed of 1000-2000 rpm, and grinding by using a sand mill until the fineness is not more than 30 microns to obtain slurry;
s2, uniformly mixing the water-based polyurethane resin, the water-soluble acrylic resin, the thickening agent, the defoaming agent, propylene glycol, the balance of water and the nano-silver sol;
and S3, gradually adding the mixture obtained in the step S2 into the mixture obtained in the step S1, stirring at 500-1000 rpm for 30-60 min, and filtering to obtain the multifunctional single-component water-based interior wall paint.
Example 2
A multifunctional single-component water-based interior wall paint comprises the following components in parts by mass:
28 parts of waterborne polyurethane resin;
10 parts of water-soluble acrylic resin;
22.5 parts of pigment and filler;
3 parts of nano silver sol;
3 parts of composite nano anion powder;
1 part of propylene glycol;
1.2 parts of a dispersing agent;
1.0 part of wetting agent;
1.0 part of thickening agent;
0.3 part of defoaming agent;
29 parts of water;
wherein, the pigment filler comprises 5.5 parts of calcium carbonate, 2 parts of calcined kaolin and 15 parts of titanium dioxide.
The preparation process of the multifunctional single-component water-based interior wall paint is basically the same as that of the embodiment 1, and the details are not repeated here.
Example 3
A multifunctional single-component water-based interior wall paint comprises the following components in parts by mass:
21.5 parts of waterborne polyurethane resin;
10 parts of water-soluble acrylic resin;
32 parts of pigment and filler;
4.7 parts of nano silver sol;
1 part of composite nano anion powder;
3.8 parts of propylene glycol;
2.0 parts of a dispersing agent;
1.8 parts of a wetting agent;
1.7 parts of a thickening agent;
0.5 part of defoaming agent;
21 parts of water;
wherein, the pigment filler comprises 8 parts of calcium carbonate, 4 parts of calcined kaolin and 20 parts of titanium dioxide.
The antibacterial coatings of examples 1 to 3 were subjected to performance tests, including the following specific test methods of an antibacterial and antifungal performance test, a VOC content test, a negative ion number release amount, an adhesion test, a scrub resistance test, and a hand feeling test:
(1) and (3) testing the antibacterial and mildewproof performance: national standard GB/T9756-;
(2) and (3) testing the VOC content: reference GB 18582-2008;
(3) anion number release amount: HG/T4109-2009 anion functional coating;
(4) and (3) testing the adhesive force: GB/T9756-2008 internal wall coating national standard;
(5) scrub resistance test: reference is made to GB/T9266-1988 standard;
(6) hand feeling: painting the paint on the treated putty wall, adding about 5 percent of water before painting, painting twice, and touching with fingers after the paint film is dried.
The test results are shown in Table 1.
TABLE 1
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.
Claims (8)
1. The multifunctional single-component water-based interior wall paint is characterized by comprising the following components in parts by mass:
the nano silver sol is prepared by the following method:
step (1): dropwise adding 2-4% ammonia water into 5 parts of 2-4% silver nitrate solution, and continuously shaking the mixture in the dropwise adding process until the initial precipitate is just dissolved to obtain a silver ammonium solution;
step (2): mixing and stirring 0.5-2 parts of fructose, 2.5-5 parts of water, 0.5-1 part of hydroxypropyl methyl cellulose and 0.5-1 part of AMP-95 uniformly;
and (3): and (2) controlling the temperature of the mixed solution obtained in the step (1) to be 30-40 ℃, stirring at the speed of 100-150 rpm, dropwise adding the mixed solution obtained in the step (2), uniformly stirring, increasing the temperature to 40-50 ℃ after dropwise adding, rotating at the speed of 500-800 rpm, and continuously stirring for 1-1.5 hours to obtain the nano-silver sol.
2. The multifunctional single-component water-based interior wall paint according to claim 1, wherein the composite nano negative ion powder is prepared by compounding tourmaline powder, graphene and nano zinc oxide, and the mass ratio of the tourmaline powder to the graphene to the nano zinc oxide is 1: (0.5-1): (0.2-0.5).
3. The multifunctional one-component water-based interior wall paint according to claim 1, wherein the water-based polyurethane resin is anionic water-based polyurethane with a solid content of 25-40% and a viscosity of not more than 500 cps.
4. The multifunctional one-component water-based interior wall paint as claimed in claim 1, wherein the water-soluble acrylic resin is water-soluble acrylic resin with molecular weight of 3000-4000.
5. The multifunctional one-component water-based interior wall paint according to claim 1, wherein the pigment and filler are at least two of calcium carbonate, calcined kaolin and titanium dioxide.
6. The multifunctional single-component water-based interior wall paint according to claim 4, wherein the pigment and filler comprise 5-10 parts of calcium carbonate, 1-5 parts of calcined kaolin and 10-20 parts of titanium dioxide.
7. The multifunctional one-component water-based interior wall paint according to claim 1, wherein the dispersant is an anionic wetting dispersant and/or a polymeric hyperdispersant.
8. The method for preparing the multifunctional one-component water-based interior wall paint according to any one of claims 1 to 7, which is characterized by comprising the following steps:
s1, dispersing a wetting agent and a dispersing agent in water, uniformly stirring, adding a pigment filler and composite nano anion powder, dispersing for 30-60 min at the rotating speed of 1000-2000 rpm, and grinding by using a sand mill until the fineness is not more than 30 mu m to obtain slurry, wherein the using amount of water is 60-70% of the total amount;
s2, uniformly mixing the water-based polyurethane resin, the water-soluble acrylic resin, the thickening agent, the defoaming agent, propylene glycol, the balance of water and the nano-silver sol;
and S3, gradually adding the mixture obtained in the step S2 into the mixture obtained in the step S1, stirring at 500-1000 rpm for 30-60 min, and filtering to obtain the multifunctional single-component water-based interior wall paint.
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| CN113209803A (en) * | 2021-05-14 | 2021-08-06 | 贝贝家(北京)室内环境科技有限公司 | Reaction penetrant and preparation and use methods thereof |
| CN114933843A (en) * | 2022-03-30 | 2022-08-23 | 温州环诺新材料科技有限公司 | Antibacterial environment-friendly water-based paint and preparation method thereof |
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Application publication date: 20200421 |