CN113930105A - Interior wall coating and preparation method thereof - Google Patents
Interior wall coating and preparation method thereof Download PDFInfo
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- CN113930105A CN113930105A CN202111286134.0A CN202111286134A CN113930105A CN 113930105 A CN113930105 A CN 113930105A CN 202111286134 A CN202111286134 A CN 202111286134A CN 113930105 A CN113930105 A CN 113930105A
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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
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
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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
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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Abstract
The invention discloses an interior wall coating and a preparation method thereof, relating to the technical field of coatings, wherein the interior wall coating is prepared from the following raw materials (in percentage by mass): 25-35% of water, 0.3-0.5% of hydroxyethyl cellulose, 0.6-1% of wetting dispersant, 0.3-0.5% of defoaming agent, 6-10% of titanium dioxide, 25-35% of calcium carbonate, 6-10% of anionic styrene acrylate copolymer, 6-10% of potassium silicate, 0.2-0.3% of thickening agent, 6-9% of talcum powder, 3-5% of ethylene glycol, 0.5-0.8% of pH regulator, 0.2-0.4% of sterilization and mildew preventive, 1-1.5% of surfactant, 0.2-0.4% of initiator, 0.2-0.5% of wetting agent, 1-1.5% of film forming agent, 0.2-0.5% of accelerator, 0.2-0.5% of softening agent and 2-3% of aluminum oxide, and has the following beneficial effects: the potassium silicate and the anionic styrene acrylate copolymer can achieve good antiseptic, antibacterial and antifreezing performances under a specific proportion, can meet the antiseptic, antibacterial and antifreezing requirements of the interior wall coating, and does not need to add the traditional antiseptic and antifreezing agent containing VOC and formaldehyde, so that the interior wall coating can meet the requirements of low VOC and formaldehyde.
Description
Technical Field
The invention relates to the technical field of paint correlation, in particular to an interior wall paint and a preparation method thereof.
Background
Due to the development of the country, the education suffered by the common people is improved, and the requirements of people on the living environment are higher and higher. The cognition of toxic and harmful gases such as VOC (volatile organic compounds), formaldehyde and the like is deepened. Products with low VOC, formaldehyde and even zero VOC, formaldehyde and the like are more popular. Therefore, healthy and environment-friendly coatings need to be developed to meet the market demand.
Traditional interior wall coating is through adding ethylene glycol, propylene glycol etc. as antifreeze, and these alcohols product all are VOC, and not only do not protect the environment, can arouse the respiratory problem even, and traditional interior wall coating plays bactericidal effect through adding CIT, BIT or even formaldehyde, adds too much and can all produce certain threat to the environment, to human health. Therefore, how to prepare the interior wall coating can still achieve good anti-freezing effect and anti-corrosion and sterilization effect under the condition of not additionally adding a preservative, a bactericide and an anti-freezing agent.
Disclosure of Invention
The invention aims to provide an interior wall coating and a preparation method thereof, which aim to solve the problems in the background art.
In order to realize the purpose, the invention provides the following technical scheme: an interior wall coating is prepared from the following raw materials (by mass percent): 25-35% of water, 0.3-0.5% of hydroxyethyl cellulose, 0.6-1% of wetting dispersant, 0.3-0.5% of defoaming agent, 6-10% of titanium dioxide, 25-35% of calcium carbonate, 6-10% of anionic styrene acrylate copolymer, 6-10% of potassium silicate, 0.2-0.3% of thickening agent, 6-9% of talcum powder, 3-5% of ethylene glycol, 0.5-0.8% of pH regulator, 0.2-0.4% of sterilization and mildew preventive, 1-1.5% of surfactant, 0.2-0.4% of initiator, 0.2-0.5% of wetting agent, 1-1.5% of film forming agent, 0.2-0.5% of accelerator, 0.2-0.5% of softening agent and 2-3% of aluminum oxide.
Preferably, the hydroxyethyl cellulose is a nonionic water-soluble cellulose ether; the wetting dispersant is polyacrylic acid ammonium salt or sodium polyacrylate salt; the defoaming agent is mineral oil or organic silicon defoaming agent; the titanium dioxide is anatase type titanium dioxide or rutile type titanium dioxide; the calcium carbonate is heavy calcium carbonate; the potassium silicate is subjected to silane stabilization treatment; the thickening agent is an associated polyurethane thickening agent.
Preferably, the film forming agent is selected from any one or a combination of more of the following: the sterilization mildewcide is selected from any one or more of the following combinations: pentachlorophenol, sodium salt benzimidazole, sulfonate, quinone compounds, inorganic salt system, etc. The surfactant is selected from any one or a combination of more of the following: carboxylic acid, sulfonic acid, sulfuric acid, amino group, hydroxyl group, amide group, ether bond, and the like.
Preferably, the humectant is selected from any one or a combination of more of the following: alkyl sulfates, sulfonates, fatty acid or fatty acid ester sulfates, carboxylic acid soaps, and phosphate esters, the film former being selected from any one or combination of: acrylic resin, polyurethane copolymer resin, polyethylene, acrylate modified butadiene resin and polyurethane modified nitrocellulose film forming agent.
Preferably, the accelerator is selected from any one or a combination of more of the following: vanadium acetylacetonate, acetylacetone, triphenylphosphine, n-butyraldehyde-aniline condensate, and p-chlorobenzoic acid; the softening agent is selected from any one or combination of more of the following: is prepared from high-molecular polymer such as polyethylene and organosilicon resin.
A preparation method of an interior wall coating comprises the following steps:
step 1: firstly, taking quantitative water and adding hydroxyethyl cellulose into a dispersion cylinder, controlling the rotation speed of the dispersion cylinder at 450r/min, and continuously dispersing for 7-10min to prepare a basic solution;
step 2: slowly adding the wetting dispersant, the defoaming agent, the ethylene glycol and the initiator into the basic solution, adjusting the rotating speed of a dispersion cylinder to 350-450r/min, and continuously dispersing for 4-8min to obtain a premixed solution A;
and step 3: adding titanium dioxide, calcium carbonate, talcum powder, surfactant, accelerator and alumina into the premixed solution A, adjusting the rotating speed of a dispersion cylinder to 1200-1500r/min, and continuously dispersing for 15-20min to obtain a premixed solution B;
and 4, step 4: adding a certain amount of water, a sterilization mildew inhibitor, a wetting agent and a film forming agent into a mixing box, and slowly stirring through the mixing box to prepare an addition solvent C;
and 5: moving the premixed solution B into a reaction kettle, slowly heating the premixed solution B to 70-80 ℃, adding the addition solvent C into the premixed solution B, adjusting the rotating speed of the reaction kettle to 600r/min, slowly stirring for 50-60min, and preserving heat for 30-120min after stirring is finished to obtain a premixed solution D;
step 6: cooling the premixed solution D to 45 ℃, adding a PH regulator into the premixed solution D, and continuously stirring for 8-10min to obtain a premixed solution E;
and 7: slowly adding the anionic styrene acrylate copolymer and potassium silicate into the pre-mixed solution E, keeping the rotating speed of the reaction kettle to 500-600r/min, and continuously dispersing for 3-5min to obtain a seed solution;
and 8: and reducing the rotating speed of the reaction kettle to 450-500r/min, adding the thickening agent and the softening agent into the seed solution, and continuously stirring for 10-20min until the system is a uniform white mixture without particles to obtain the interior wall coating.
In solving the above-mentioned problems, the inventors first thought to find an antifreeze agent capable of replacing the conventional alcohol, and an aldehyde-based antiseptic agent, and, at the same time, found no low VOC, formaldehyde substitute, and the addition of the conventional antiseptic agent and antifreeze agent causes a slight decrease in the scrub resistance of the interior wall paint.
Compared with the prior art, the invention has the beneficial effects that:
1. the inventor finds that potassium silicate has certain anticorrosion, antibacterial and antifreezing performance by accident, and the anionic styrene acrylate copolymer and the potassium silicate can achieve better anticorrosion, antibacterial and antifreezing performance by mixing, and further researches show that the potassium silicate and the anionic styrene acrylate copolymer are not more and better, and the scrubbing resistance is reduced by too much, and the potassium silicate and the anionic styrene acrylate copolymer can achieve good anticorrosion, antibacterial and antifreezing performance under a specific proportion, can meet the anticorrosion, antibacterial and antifreezing requirements of the interior wall coating, and does not need to add the traditional VOC and formaldehyde-containing preservative and antifreezing agent, so that the interior wall coating can meet the requirements of low VOC and formaldehyde.
2. Aluminum chloride is added into the interior wall coating, so that the oxidation resistance of the coating is improved; by adding the surfactant, the wetting agent, the film forming agent, the accelerator and the softening agent, the adhesive strength of the interior wall coating is improved, the interior wall coating is convenient to use, the surface of the interior wall coating is still smooth after being cured, the interior wall coating has good aesthetic property, is difficult to break, has good wear resistance and is difficult to fall off, and the quality of the interior wall coating is greatly improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: the technical solution of the present patent will be described in further detail with reference to the following embodiments.
An interior wall coating is prepared from the following raw materials (by mass percent): 25-35% of water, 0.3-0.5% of hydroxyethyl cellulose, 0.6-1% of wetting dispersant, 0.3-0.5% of defoaming agent, 6-10% of titanium dioxide, 25-35% of calcium carbonate, 6-10% of anionic styrene acrylate copolymer, 6-10% of potassium silicate, 0.2-0.3% of thickening agent, 6-9% of talcum powder, 3-5% of ethylene glycol, 0.5-0.8% of pH regulator, 0.2-0.4% of sterilization and mildew preventive, 1-1.5% of surfactant, 0.2-0.4% of initiator, 0.2-0.5% of wetting agent, 1-1.5% of film forming agent, 0.2-0.5% of accelerator, 0.2-0.5% of softening agent and 2-3% of aluminum oxide. .
Hydroxyethyl cellulose is a nonionic water-soluble cellulose ether; the wetting dispersant is polyacrylic acid ammonium salt or sodium polyacrylate salt; the defoaming agent is mineral oil or organic silicon defoaming agent; the titanium dioxide is anatase titanium dioxide or rutile titanium dioxide; the calcium carbonate is heavy calcium carbonate; the potassium silicate is stabilized by silane; the thickener is an associated polyurethane thickener.
The film forming agent is selected from any one or a combination of more of the following: the sterilization mildew preventive is selected from any one or more of the following combinations: pentachlorophenol, sodium salt benzimidazole, sulfonate, quinone compounds, inorganic salt system, etc. The surfactant is selected from any one or a combination of more of the following: carboxylic acid, sulfonic acid, sulfuric acid, amino group, hydroxyl group, amide group, ether bond, and the like.
The humectant is selected from any one or a combination of more of the following: alkyl sulfates, sulfonates, fatty acid or fatty acid ester sulfates, carboxylic acid soaps, and phosphate esters, the film former being selected from any one or combination of: acrylic resin, polyurethane copolymer resin, polyethylene, acrylate modified butadiene resin and polyurethane modified nitrocellulose film forming agent.
The accelerator is selected from any one or a combination of more of the following: vanadium acetylacetonate, acetylacetone, triphenylphosphine, n-butyraldehyde-aniline condensate, and p-chlorobenzoic acid; the softening agent is selected from any one or combination of more of the following: is prepared from high-molecular polymer such as polyethylene and organosilicon resin.
A preparation method of an interior wall coating comprises the following steps:
step 1: firstly, taking quantitative water and adding hydroxyethyl cellulose into a dispersion cylinder, controlling the rotation speed of the dispersion cylinder at 450r/min, and continuously dispersing for 7-10min to prepare a basic solution;
step 2: slowly adding the wetting dispersant, the defoaming agent, the ethylene glycol and the initiator into the basic solution, adjusting the rotating speed of a dispersion cylinder to 350-450r/min, and continuously dispersing for 4-8min to obtain a premixed solution A;
and step 3: adding titanium dioxide, calcium carbonate, talcum powder, surfactant, accelerator and alumina into the premixed solution A, adjusting the rotating speed of a dispersion cylinder to 1200-1500r/min, and continuously dispersing for 15-20min to obtain a premixed solution B;
and 4, step 4: adding a certain amount of water, a sterilization mildew inhibitor, a wetting agent and a film forming agent into a mixing box, and slowly stirring through the mixing box to prepare an addition solvent C;
and 5: moving the premixed solution B into a reaction kettle, slowly heating the premixed solution B to 70-80 ℃, adding the addition solvent C into the premixed solution B, adjusting the rotating speed of the reaction kettle to 600r/min, slowly stirring for 50-60min, and preserving heat for 30-120min after stirring is finished to obtain a premixed solution D;
step 6: cooling the premixed solution D to 45 ℃, adding a PH regulator into the premixed solution D, and continuously stirring for 8-10min to obtain a premixed solution E;
and 7: slowly adding the anionic styrene acrylate copolymer and potassium silicate into the pre-mixed solution E, keeping the rotating speed of the reaction kettle to 500-600r/min, and continuously dispersing for 3-5min to obtain a seed solution;
and 8: and reducing the rotating speed of the reaction kettle to 450-500r/min, adding the thickening agent and the softening agent into the seed solution, and continuously stirring for 10-20min until the system is a uniform white mixture without particles to obtain the interior wall coating.
The following detailed description of embodiments of the invention is intended to be illustrative of the invention and is not to be construed as limiting the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
Raw material ratios of interior wall coatings of table 1, examples 1 to 5
The raw materials in table 1 are in proportions, measured in percent, and hydroxyethyl cellulose is a nonionic water-soluble cellulose ether. The wetting dispersant is a polyacrylic ammonium salt dispersant; the defoaming agent is mineral oil defoaming agent. The titanium dioxide is anatase titanium dioxide; the calcium carbonate is ground calcium carbonate. The potassium silicate is a potassium silicate treated by silane stabilization. The thickener is an associated polyurethane thickener. The bactericidal and mildewproof agent is sodium salt benzimidazole. The surfactant is an ether linkage. The wetting agent is fatty acid ester sulfate. The film forming agent is a polyurethane modified nitrocellulose film forming agent. The promoter is p-chlorobenzoic acid. The softening agent is high molecular polymer such as organic silicon resin.
TABLE 2 data for the quantitative determination of harmful substances
As can be seen from Table 2, none of examples 1 to 5 added the conventional VOC or formaldehyde containing preservatives (methylchloroisothiazolinone) and anti-freeze agents (such as propylene glycol), and thus none of VOC, formaldehyde and benzene series were detected.
TABLE 3 scrub resistance test data
As can be seen from Table 3, the scrub resistances of the interior wall coatings prepared in examples 1 to 5 were all in accordance with the standards, and the interior wall coatings all had good low temperature stability.
In conclusion, the interior wall coating prepared by the invention has the advantages that the anion styrene acrylate copolymer and the potassium silicate with specific proportion are added, the traditional antiseptic and the antifreezing agent containing VOC and formaldehyde are not needed to be added, so that the interior wall coating meets the requirements of low VOC and formaldehyde, and has good scrubbing resistance, and the oxidation resistance of the coating is improved by adding the alumina into the interior wall coating; by adding the surfactant, the wetting agent, the film forming agent, the accelerator and the softening agent, the adhesive strength of the interior wall coating is improved, the interior wall coating is convenient to use, the surface of the interior wall coating is still smooth after being cured, the interior wall coating has good aesthetic property, is difficult to break, has good wear resistance and is difficult to fall off, and the quality of the interior wall coating is greatly improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The interior wall coating is prepared from the following raw materials in percentage by mass: 25-35% of water, 0.3-0.5% of hydroxyethyl cellulose, 0.6-1% of wetting dispersant, 0.3-0.5% of defoaming agent, 6-10% of titanium dioxide, 25-35% of calcium carbonate, 6-10% of anionic styrene acrylate copolymer, 6-10% of potassium silicate, 0.2-0.3% of thickening agent, 6-9% of talcum powder, 3-5% of ethylene glycol, 0.5-0.8% of pH regulator, 0.2-0.4% of sterilization and mildew preventive, 1-1.5% of surfactant, 0.2-0.4% of initiator, 0.2-0.5% of wetting agent, 1-1.5% of film forming agent, 0.2-0.5% of accelerator, 0.2-0.5% of softening agent and 2-3% of aluminum oxide.
2. An interior wall coating according to claim 1, wherein: the hydroxyethyl cellulose is nonionic water-soluble cellulose ether; the wetting dispersant is polyacrylic acid ammonium salt or sodium polyacrylate salt; the defoaming agent is mineral oil or organic silicon defoaming agent; the titanium dioxide is anatase type titanium dioxide or rutile type titanium dioxide; the calcium carbonate is heavy calcium carbonate; the potassium silicate is subjected to silane stabilization treatment; the thickening agent is an associated polyurethane thickening agent.
3. An interior wall coating according to claim 1, wherein: the film forming agent is selected from any one or combination of more of the following: the sterilization mildewcide is selected from any one or more of the following combinations: pentachlorophenol, sodium salt benzimidazole, sulfonate, quinone compounds, inorganic salt system, etc. The surfactant is selected from any one or a combination of more of the following: carboxylic acid, sulfonic acid, sulfuric acid, amino group, hydroxyl group, amide group, ether bond, and the like.
4. An interior wall coating according to claim 1, wherein: the humectant is selected from any one or a combination of more of the following: alkyl sulfates, sulfonates, fatty acid or fatty acid ester sulfates, carboxylic acid soaps, and phosphate esters, the film former being selected from any one or combination of: acrylic resin, polyurethane copolymer resin, polyethylene, acrylate modified butadiene resin and polyurethane modified nitrocellulose film forming agent.
5. An interior wall coating according to claim 1, wherein: the accelerator is selected from any one or a combination of more of the following: vanadium acetylacetonate, acetylacetone, triphenylphosphine, n-butyraldehyde-aniline condensate, and p-chlorobenzoic acid; the softening agent is selected from any one or combination of more of the following: is prepared from high-molecular polymer such as polyethylene and organosilicon resin.
6. The method for preparing an interior wall coating material according to any one of claims 1 to 5, comprising the steps of:
step 1: firstly, taking quantitative water and adding hydroxyethyl cellulose into a dispersion cylinder, controlling the rotation speed of the dispersion cylinder at 450r/min, and continuously dispersing for 7-10min to prepare a basic solution;
step 2: slowly adding the wetting dispersant, the defoaming agent, the ethylene glycol and the initiator into the basic solution, adjusting the rotating speed of a dispersion cylinder to 350-450r/min, and continuously dispersing for 4-8min to obtain a premixed solution A;
and step 3: adding titanium dioxide, calcium carbonate, talcum powder, surfactant, accelerator and alumina into the premixed solution A, adjusting the rotating speed of a dispersion cylinder to 1200-1500r/min, and continuously dispersing for 15-20min to obtain a premixed solution B;
and 4, step 4: adding a certain amount of water, a sterilization mildew inhibitor, a wetting agent and a film forming agent into a mixing box, and slowly stirring through the mixing box to prepare an addition solvent C;
and 5: moving the premixed solution B into a reaction kettle, slowly heating the premixed solution B to 70-80 ℃, adding the addition solvent C into the premixed solution B, adjusting the rotating speed of the reaction kettle to 600r/min, slowly stirring for 50-60min, and preserving heat for 30-120min after stirring is finished to obtain a premixed solution D;
step 6: cooling the premixed solution D to 45 ℃, adding a PH regulator into the premixed solution D, and continuously stirring for 8-10min to obtain a premixed solution E;
and 7: slowly adding the anionic styrene acrylate copolymer and potassium silicate into the pre-mixed solution E, keeping the rotating speed of the reaction kettle to 500-600r/min, and continuously dispersing for 3-5min to obtain a seed solution;
and 8: and reducing the rotating speed of the reaction kettle to 450-500r/min, adding the thickening agent and the softening agent into the seed solution, and continuously stirring for 10-20min until the system is a uniform white mixture without particles to obtain the interior wall coating.
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| CN114539878A (en) * | 2022-03-03 | 2022-05-27 | 湖北三棵树新材料科技有限公司 | Special water-based epoxy paint for wet-on-wet and preparation method thereof |
| CN114539878B (en) * | 2022-03-03 | 2023-03-24 | 湖北三棵树新材料科技有限公司 | Special water-based epoxy paint for wet-on-wet and preparation method thereof |
| CN115197611A (en) * | 2022-08-03 | 2022-10-18 | 广州双虹建材有限公司 | Water-based red rubber waterproof coating and preparation method thereof |
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