CN113512328A - Exterior wall coating composition, exterior wall coating and preparation method thereof - Google Patents
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- CN113512328A CN113512328A CN202010276916.5A CN202010276916A CN113512328A CN 113512328 A CN113512328 A CN 113512328A CN 202010276916 A CN202010276916 A CN 202010276916A CN 113512328 A CN113512328 A CN 113512328A
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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
- C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of 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
- 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
- C09D7/63—Additives non-macromolecular organic
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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
- C09D7/65—Additives macromolecular
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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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention provides an exterior wall coating composition, an exterior wall coating and a preparation method thereof. The exterior wall coating provided by the embodiment of the invention has the functions of sterilization and algae resistance.
Description
Technical Field
The invention relates to an exterior wall coating, in particular to an exterior wall coating capable of sterilizing and resisting algae and a preparation method thereof.
Background
With the continuous progress of society, people have higher and higher requirements on urban development, and hope that the appearance of a building is not influenced by rainwater and dust and can keep clean and beautiful for a long time; meanwhile, in coastal areas of China, due to the humid environment, algae and bacteria are easy to breed on outer walls of buildings, outdoor fitness runways and the like, the attractiveness is influenced, and potential safety hazards are brought to people, so that the development of the bactericidal and algae-resistant super-hydrophobic outer wall coating is necessary.
Disclosure of Invention
The invention provides an exterior wall coating composition, which comprises a film-forming emulsion, nano titanium dioxide, a graphene dispersion liquid and water.
The invention also provides an exterior wall coating prepared from the composition.
The embodiment of the invention further provides a preparation method of the exterior wall coating, which comprises the following steps:
dispersing nano titanium dioxide into water to obtain a titanium dioxide aqueous solution;
providing a first mixture, and mixing the first mixture with the titanium dioxide aqueous solution to obtain a second mixture;
mixing titanium dioxide with the second mixture to obtain a third mixture; and
mixing the film-forming emulsion, the film-forming additive, fluorosilane and the third mixture to prepare the exterior wall coating;
wherein the first mixture comprises a graphene dispersion liquid, a defoaming agent, a bactericide and a dispersing agent.
The exterior wall coating provided by the embodiment of the invention has the functions of sterilization and algae resistance.
Detailed Description
Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of modification in various embodiments without departing from the scope of the invention, and that the description is intended to be illustrative in nature and not to limit the invention.
The invention provides an exterior wall coating composition, which comprises a film-forming emulsion, nano titanium dioxide, a graphene dispersion liquid and water.
In one embodiment, the exterior wall coating composition includes a fluorosilane.
In one embodiment, the exterior wall coating composition comprises one or more of titanium dioxide, a defoamer, a bactericide, a film-forming aid and a dispersant.
In one embodiment, the film-forming emulsion may be an acrylic emulsion and/or a styrene-acrylic emulsion.
In one embodiment, the fluorosilane may be heptadecafluorodecyltriethoxysilane and/or tridecafluorooctyltriethoxysilane.
In one embodiment, the nano titanium dioxide may be anatase type nano titanium dioxide, and the particle size may be 5 to 15nm, such as 6nm, 8nm, 10nm, 12nm, 14nm, and the like.
In one embodiment, the graphene dispersion may be formed by dispersing graphene in water, and the concentration of the graphene dispersion may be 0.5mg/ml, 1mg/ml or 2 mg/ml.
In one embodiment, the defoaming agent may be one or both of polydimethylsiloxane, polyoxypropylene glyceryl ether, and the like.
In one embodiment, the bactericide may be one or more of dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, and tetradecyl dimethyl benzyl ammonium chloride.
In one embodiment, the coalescent may be one or both of dicyclopentenyloxyethyl acrylate or diisopropyl adipate.
In one embodiment, the dispersant may be one or both of ethylene bis stearamide or polyethylene glycol 400.
In one embodiment, the exterior wall coating composition comprises 20-50 parts by mass of a film-forming emulsion, 10-40 parts by mass of titanium dioxide, 0.1-5 parts by mass of nano titanium dioxide, 0.1-5 parts by mass of a graphene dispersion, 0.1-0.5 part by mass of a defoaming agent, 0.01-0.2 part by mass of a bactericide, 0.5-1 part by mass of a film-forming aid, 0.1-1 part by mass of a dispersing agent, 0.1-5 parts by mass of fluorosilane and 10-60 parts by mass of water.
In one embodiment, the exterior wall coating composition comprises 35 parts by mass of film-forming emulsion, 30 parts by mass of titanium dioxide, 3 parts by mass of nano titanium dioxide, 3 parts by mass of graphene dispersion liquid, 0.3 part by mass of defoaming agent, 0.1 part by mass of bactericide, 0.5 part by mass of film-forming assistant, 0.3 part by mass of dispersing agent and 3 parts by mass of fluorosilane.
One embodiment of the present invention provides a method for preparing an exterior wall coating material by using the composition, comprising the steps of:
dispersing nano titanium dioxide into water to obtain a titanium dioxide aqueous solution;
providing a first mixture, and mixing the first mixture with a titanium dioxide aqueous solution to obtain a second mixture;
mixing the titanium dioxide with the second mixture to obtain a third mixture; and
mixing the film-forming emulsion, the film-forming additive, fluorosilane and the third mixture to prepare the exterior wall coating;
wherein the first mixture comprises a graphene dispersion liquid, a defoaming agent, a bactericide and a dispersing agent.
In one embodiment, a method for preparing an exterior wall coating includes:
(1) dispersing anatase titanium dioxide into pure water, fully stirring for 30 minutes at room temperature to obtain a stable titanium dioxide aqueous solution, and adding the stable titanium dioxide aqueous solution into a preparation vessel;
(2) sequentially adding 0.1-5 parts by mass of graphene dispersion liquid, 0.1-0.5 part by mass of defoaming agent, 0-0.2 part by mass of bactericide and 0.1-0.5 part by mass of dispersing agent into a preparation vessel at a stirring speed of 650rpm/min, and continuously stirring for 30 minutes until all components are uniformly dispersed;
(3) adding 10-40 parts by mass of titanium dioxide into a preparation vessel at a stirring speed of 1000rpm/min, and continuously stirring for 60min until all components are uniformly dispersed;
(4) sequentially adding 20-50 parts by mass of film-forming emulsion, 0.5-1 part by mass of film-forming auxiliary agent and 0.1-5 parts by mass of fluorosilane into a preparation vessel at the stirring speed of 650rpm/min at normal temperature and normal pressure, and continuously stirring for 30 minutes until all components are uniformly dispersed to obtain the graphene-added bactericidal algae-resistant hydrophobic exterior wall coating.
According to the exterior wall coating prepared by the embodiment of the invention, as the graphene is in a nano level, the graphene can be cut by inserting cell membranes and cell walls, so that the exterior wall coating has the functions of sterilization and algae resistance.
According to the external wall coating prepared by the embodiment of the invention, the nano titanium dioxide can generate photocatalytic reaction under illumination, the direct reaction mainly comprises direct reaction and indirect reaction, and the direct reaction is that photo-generated electrons and holes directly react with cell walls, cell membranes or components of cells, so that bacteria are killed; the indirect reaction is the reaction of photo-generated electrons or photo-generated holes and water or dissolved oxygen in water to form active oxygen species with strong oxidizing capability, and the active oxygen species can penetrate through cell walls of fungi to enter the fungi, prevent the transmission of film-forming substances and block a respiratory system and an electron transmission system of the fungi, thereby effectively sterilizing and resisting algae.
According to the exterior wall coating prepared by the embodiment of the invention, the fluorosilane can form a hydrophobic layer on the surface of a building to achieve a self-cleaning effect.
The exterior wall coating prepared by the embodiment of the invention is a graphene-added bactericidal anti-algae hydrophobic exterior wall coating.
The exterior wall coating according to an embodiment of the present invention will be further described with reference to specific examples. Wherein, the raw materials are all obtained from the market.
Example 1
The raw materials for preparing the exterior wall coating consist of the following components: 35 parts by mass of acrylic emulsion, 30 parts by mass of titanium dioxide, 3 parts by mass of anatase titanium dioxide (particle size of 5nm), 3 parts by mass of graphene dispersion (concentration of 0.5mg/ml), 0.3 part by mass of defoaming agent (polyoxypropylene glycerol ether), 0.1 part by mass of bactericide (dodecyl dimethyl benzyl ammonium chloride), 0.5 part by mass of film-forming aid (dicyclopentenyloxyethyl acrylate), 0.3 part by mass of dispersant (polyethylene glycol 400), 3 parts by mass of heptadecafluorodecyl triethoxysilane, and 24.8 parts by mass of water.
The specific preparation process is as follows:
(1) dispersing 3 parts by mass of anatase titanium dioxide into 24.8 parts by mass of pure water, fully stirring for 30 minutes at room temperature to obtain a stable titanium dioxide aqueous solution, and adding the stable titanium dioxide aqueous solution into a preparation vessel;
(2) sequentially adding 3 parts by mass of graphene dispersion liquid, 0.3 part by mass of defoaming agent, 0.1 part by mass of bactericide and 0.3 part by mass of dispersing agent into a preparation vessel at a stirring speed of 650rpm/min, and continuously stirring for 30 minutes until all components are uniformly dispersed;
(3) adding 30 parts by mass of titanium dioxide into a preparation vessel at a stirring speed of 1000rpm/min, and continuously stirring for 60 minutes until all components are uniformly dispersed;
(4) and sequentially adding 35 parts by mass of film-forming emulsion, 0.5 part by mass of film-forming additive and 3 parts by mass of heptadecafluorodecyltriethoxysilane into a preparation vessel at the stirring speed of 650rpm/min at normal temperature and normal pressure, and continuously stirring for 30 minutes until all components are uniformly dispersed to obtain the bactericidal, anti-algae and hydrophobic exterior wall coating.
Example 2
The raw materials for preparing the exterior wall coating consist of the following components: 30 parts of styrene-acrylic emulsion, 25 parts of titanium dioxide, 5 parts of anatase titanium dioxide (with the particle size of 15nm), 5 parts of graphene dispersion liquid (with the concentration of 1mg/ml), 0.2 part of defoaming agent (polydimethylsiloxane), 0.1 part of bactericide (dodecyl dimethyl benzyl ammonium bromide), 0.3 part of film-forming aid (diisopropanol adipate), 0.2 part of dispersing agent (polyethylene glycol 400), 3 parts of tridecafluorooctyltriethoxysilane and 31.2 parts of water.
The specific preparation process is as follows:
(1) dispersing 5 parts by mass of anatase titanium dioxide into 31.2 parts by mass of pure water, fully stirring for 30 minutes at room temperature to obtain a stable titanium dioxide aqueous solution, and adding the stable titanium dioxide aqueous solution into a preparation vessel;
(2) sequentially adding 5 parts by mass of graphene dispersion liquid, 0.2 part by mass of defoaming agent, 0.1 part by mass of bactericide and 0.2 part by mass of dispersing agent into a preparation vessel at a stirring speed of 650rpm/min, and continuously stirring for 30 minutes until all components are uniformly dispersed;
(3) adding 25 parts by mass of titanium dioxide into a preparation vessel at a stirring speed of 1000rpm/min, and continuously stirring for 60 minutes until all components are uniformly dispersed;
(4) and sequentially adding 30 parts by mass of film-forming emulsion, 0.3 part by mass of film-forming additive and 3 parts by mass of tridecafluorooctyltriethoxysilane into a preparation vessel at the normal temperature and normal pressure at the stirring speed of 650rpm/min, and continuously stirring for 30 minutes until all components are uniformly dispersed to obtain the bactericidal, anti-algae and hydrophobic exterior wall coating.
And (3) testing the sterilizing effect:
2mL of the solution was added at a concentration of 1.0X 107Adding cfu/mL of mixed bacterial liquid of staphylococcus aureus and escherichia coli into a culture dish, pouring a certain amount of culture medium, uniformly mixing, placing a sample plate which is formed by pressing the sample of the embodiment 1-2 and has the diameter of 10mm and the thickness of 5mm on the culture medium after cooling, placing the culture dish into a thermostat for culturing for 24-48 h, taking out and measuring the antibacterial rate of the culture dish, wherein the result is as follows:
TABLE 1
| Test items | Staphylococcus aureus (%) | Escherichia coli (%) |
| Example 1 | 97 | 98 |
| Example 2 | 98 | 98 |
As can be seen from the data in Table 1, the coatings of the examples of the present invention have very good sterilization properties.
Testing of hydrophobic Effect
The samples of examples 1-2 of the present invention were pressed to obtain test pieces having a diameter of 10mm and a thickness of 5mm, and the results of the test pieces were shown in Table 2 as the angle of hydrophobicity:
TABLE 2
| Test items | Hydrophobic angle (degree) |
| Example 1 | 137 |
| Example 2 | 128 |
Unless otherwise defined, all terms used herein have the meanings commonly understood by those skilled in the art.
The described embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of the present invention, and those skilled in the art may make various other substitutions, alterations, and modifications within the scope of the present invention, and thus, the present invention is not limited to the above-described embodiments but only by the claims.
Claims (10)
1. An exterior wall coating composition comprises a film-forming emulsion, nano titanium dioxide, a graphene dispersion liquid and water.
2. The exterior wall coating composition of claim 1, comprising a fluorosilane.
3. The exterior wall coating composition of claim 2, wherein the fluorosilane is heptadecafluorodecyltriethoxysilane and/or tridecafluorooctyltriethoxysilane.
4. The exterior wall coating composition of claim 1, comprising one or more of titanium dioxide, a defoamer, a bactericide, a film-forming aid, a dispersant.
5. The exterior wall coating composition of claim 4, wherein the defoamer is selected from polydimethylsiloxane and/or polyoxypropylene glycerol ether; the bactericide is selected from one or more of dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and tetradecyl dimethyl benzyl ammonium chloride; the film forming assistant is selected from dicyclopentenyloxyethyl acrylate and/or diisopropyl alcohol adipate; the dispersing agent is selected from ethylene bis stearamide and/or polyethylene glycol 400.
6. The exterior wall coating composition according to claim 1, comprising 20 to 50 parts by mass of a film forming emulsion, 10 to 40 parts by mass of titanium dioxide, 0.1 to 5 parts by mass of nano titanium dioxide, 0.1 to 5 parts by mass of a graphene dispersion, 0.1 to 0.5 part by mass of a defoaming agent, 0 to 0.2 part by mass of a bactericide, 0.5 to 1 part by mass of a film forming aid, 0.1 to 1 part by mass of a dispersing agent, 0.1 to 5 parts by mass of fluorosilane, and 10 to 60 parts by mass of water.
7. The exterior wall coating composition of any one of claims 1 to 6, wherein the film forming emulsion is an acrylic emulsion and/or a styrene acrylic emulsion; and/or the presence of a gas in the gas,
the nano titanium dioxide is anatase type nano titanium dioxide, and the particle size is 5-15 nm.
8. An exterior wall coating prepared from the exterior wall coating composition of any one of claims 1 to 7.
9. A preparation method of an exterior wall coating comprises the following steps:
dispersing nano titanium dioxide into water to obtain a titanium dioxide aqueous solution;
providing a first mixture, and mixing the first mixture with the titanium dioxide aqueous solution to obtain a second mixture;
mixing titanium dioxide with the second mixture to obtain a third mixture; and
mixing the film-forming emulsion, the film-forming additive, fluorosilane and the third mixture to prepare the exterior wall coating;
wherein the first mixture comprises a graphene dispersion liquid, a defoaming agent, a bactericide and a dispersing agent.
10. The method of claim 9, comprising:
dispersing 0.1-5 parts by mass of anatase titanium dioxide in water, and stirring for 30 minutes to obtain a titanium dioxide aqueous solution;
sequentially adding 0.1-5 parts by mass of graphene dispersion liquid, 0.1-0.5 part by mass of defoaming agent, 0-0.2 part by mass of bactericide and 0.1-1 part by mass of dispersing agent into the titanium dioxide aqueous solution at a stirring speed of 650rpm/min, and continuously stirring for 30 minutes to obtain a second mixture;
adding 10-40 parts by mass of titanium dioxide into the second mixture at a stirring speed of 1000rpm/min, and continuously stirring for 60 minutes to obtain a third mixture; and
and sequentially adding 20-50 parts by mass of the film-forming emulsion, 0.5-1 part by mass of the film-forming additive and 0.1-5 parts by mass of fluorosilane into the third mixture at a stirring speed of 650rpm/min, and continuously stirring for 30 minutes.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024013475A1 (en) * | 2022-07-11 | 2024-01-18 | University Of Exeter | Hydrophobic coating compositions |
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| WO2024013475A1 (en) * | 2022-07-11 | 2024-01-18 | University Of Exeter | Hydrophobic coating compositions |
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