CN113150633A - Stain-resistant antibacterial wall coating and preparation method thereof - Google Patents
Stain-resistant antibacterial wall coating and preparation method thereof Download PDFInfo
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- CN113150633A CN113150633A CN202110358441.9A CN202110358441A CN113150633A CN 113150633 A CN113150633 A CN 113150633A CN 202110358441 A CN202110358441 A CN 202110358441A CN 113150633 A CN113150633 A CN 113150633A
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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
- 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
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Plant Pathology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a stain-resistant antibacterial wall paint and a preparation method thereof, wherein the wall paint comprises a component A and a component B: wherein the component A comprises the following components in parts by weight: 25-30 parts of pigment filler, 15-20 parts of sol, 3-8 parts of auxiliary agent, 10-15 parts of resin, 15-20 parts of photocatalyst, 1-6 parts of antibacterial agent and 1-6 parts of pH regulator; the component B comprises the following components in parts by weight: 30-35 parts of a silane coupling agent. The wall coating disclosed by the invention has better stain resistance and antibacterial performance.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a stain-resistant antibacterial wall coating and a preparation method thereof.
Background
The coating is a chemical product with convenient construction, low price, obvious effect and high added value rate. It not only has the functions of preventing the surface of building, ship and machinery from rusting and prolonging service life, but also has the function of making decorative environment give people beautiful enjoyment or striking mark, and with the continuous development of science and technology, the coating material gradually becomes a fine chemical product with strong specificity.
The anti-fouling performance is always the main requirement of the wall coating, but the anti-fouling and anti-erosion performances of common wall products are not very strong, a lot of stains are not easy to wipe off, and a paint film is usually wiped to remove powder, mainly because the paint film of the common wall products is not compact enough, so that the paint film is easy to be polluted and infiltrated by the stains and is not easy to clean and wipe off; in addition, the wall surface coating in the prior art does not have an antibacterial function.
Disclosure of Invention
The invention aims to provide a stain-resistant antibacterial wall coating and a preparation method thereof aiming at the defects in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a stain-resistant antibacterial wall paint in a first aspect, which comprises a component A and a component B:
wherein the component A comprises the following components in parts by weight: 25-30 parts of pigment filler, 15-20 parts of sol, 3-8 parts of auxiliary agent, 10-15 parts of resin, 15-20 parts of photocatalyst, 1-6 parts of antibacterial agent and 1-6 parts of pH regulator;
the component B comprises the following components in parts by weight: 30-35 parts of a silane coupling agent.
Preferably, the pigment and filler is selected from one or more of titanium dioxide, bentonite, mica powder and barium sulfate.
Preferably, the sol is a silica sol or an aluminum sol.
Preferably, the auxiliary agent is selected from one or more of a dispersing agent, a wetting agent and a leveling agent.
Preferably, the dispersing agent is selected from one or more of a surfactant, ethyl acetate and fatty alcohol-polyoxyethylene ether, wherein the surfactant is one or more of sodium dodecyl benzene sulfonate, cetyl trimethyl ammonium bromide, tween 80 and tween 60; the wetting agent adopts PE-100; the leveling agent is an organic silicon leveling agent or an organic silane leveling agent.
Preferably, the resin is an acrylic resin.
Preferably, the antibacterial agent is a silver ion antibacterial agent.
Preferably, formic acid or acetic acid is used as the pH adjuster.
Preferably, the silane coupling agent is selected from one or more of methyltrimethoxysilane, KH560 and phenyltrimethoxysilane.
The second aspect of the invention provides a preparation method of the stain-resistant antibacterial wall coating, which comprises the following steps:
(1) sequentially adding the sol, the resin and the photocatalyst into a container, uniformly stirring, and slowly adding the auxiliary agent under the stirring condition for fully dissolving; then adding the antibacterial agent and the pigment filler, stirring uniformly, and fully grinding; finally, adding the pH regulator, and regulating the pH to 5.5-6 to obtain a component A; mixing various silane coupling agents, and uniformly stirring to obtain a component B;
(2) and (2) mixing the component A and the component B prepared in the step (1) and uniformly stirring until the coating is in a uniform and stable state, and cooling to room temperature to prepare the stain-resistant antibacterial wall coating.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
in the stain-resistant antibacterial wall paint, a silane coupling agent is hydrolyzed into silanol with high reaction activity under the weak acid condition of 50 ℃, and the silanol reacts with hydroxyl on the surfaces of silica sol and photocatalyst (nano titanium dioxide) so that the silica sol and the photocatalyst are completely wrapped; simultaneously, silanol reacts with hydroxyl in acrylic resin to generate a long-chain R-O-Si-O-R structure; the silanol wrapping the silica sol and the photocatalyst, and the R-O-Si-O-R structure generated by the reaction of the silanol and the acrylic resin continuously generate a crosslinking reaction, so that a silicon-oxygen bond is formed among the silica sol, the photocatalyst and the acrylic resin, the combination is firm, the coating has a longer service cycle, and the formaldehyde is decomposed for a long time; in addition, the methyl trimethoxy silane is mainly used silane, and because the methyl trimethoxy silane contains a large amount of methyl, the surface of the coating has a hydrophobic structure, so that the purpose of self-cleaning and stain resistance is achieved, silanol generated after hydrolysis of the methyl trimethoxy silane can react with hydroxyl on the surface of a photocatalyst to form a-Si-O-Ti-O structure, the service life of the photocatalyst is prolonged, and lasting self-cleaning is achieved; the silver ion antibacterial agent has strong sterilization and virus inactivation functions, is not easy to run off under the wrapping of resin, and can maintain the sterilization and disinfection capability for a long time.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Example 1
The stain-resistant antibacterial wall paint comprises the following components in percentage by mass: 1, component A and component B: wherein the component A comprises the following components in parts by weight: 25 parts of pigment filler, 15 parts of sol, 3 parts of auxiliary agent, 10 parts of resin, 15 parts of photocatalyst, 1 part of antibacterial agent and 1 part of pH regulator; the component B comprises the following components in parts by weight: 30 parts of a silane coupling agent.
The preparation method of the stain-resistant antibacterial wall coating comprises the following steps:
(1) sequentially adding the sol, the resin and the photocatalyst into a container, uniformly stirring by using a stirrer (the diameter of a rotary table is 10cm) at the speed of 500 revolutions per minute, and slowly adding the auxiliary agent under the stirring condition for fully dissolving; then adding the antibacterial agent and the pigment filler, uniformly stirring at the speed of 1500 r/min, and grinding by using a horizontal grinder until the fineness reaches 5 um; finally, adding the pH regulator, and regulating the pH to 5.5 to obtain a component A; mixing various silane coupling agents, and uniformly stirring to obtain a component B;
(2) and (2) mixing the component A and the component B prepared in the step (1), slowly stirring for 1 hour at the speed of 300 r/min until the coating is in a uniform and stable state, and cooling to room temperature to prepare the stain-resistant antibacterial wall coating.
Example 2
The stain-resistant antibacterial wall paint comprises the following components in percentage by mass: 1, component A and component B: wherein the component A comprises the following components in parts by weight: 28 parts of pigment filler, 17 parts of sol, 5 parts of auxiliary agent, 13 parts of resin, 18 parts of photocatalyst, 4 parts of antibacterial agent and 4 parts of pH regulator; the component B comprises the following components in parts by weight: 33 parts of a silane coupling agent.
The preparation method of the stain-resistant antibacterial wall coating comprises the following steps:
(1) sequentially adding the sol, the resin and the photocatalyst into a container, uniformly stirring by using a stirrer (the diameter of a rotary table is 10cm) at the speed of 500 revolutions per minute, and slowly adding the auxiliary agent under the stirring condition for fully dissolving; then adding the antibacterial agent and the pigment filler, uniformly stirring at the speed of 1500 r/min, and grinding by using a horizontal grinder until the fineness reaches 5 um; finally, adding the pH regulator, and regulating the pH to 5.7 to obtain a component A; mixing various silane coupling agents, and uniformly stirring to obtain a component B;
(2) and (2) mixing the component A and the component B prepared in the step (1), slowly stirring for 1 hour at the speed of 300 r/min until the coating is in a uniform and stable state, and cooling to room temperature to prepare the stain-resistant antibacterial wall coating.
Example 3
The stain-resistant antibacterial wall paint comprises the following components in percentage by mass: 1, component A and component B: wherein the component A comprises the following components in parts by weight: 30 parts of pigment and filler, 20 parts of sol, 8 parts of auxiliary agent, 15 parts of resin, 20 parts of photocatalyst, 6 parts of antibacterial agent and 6 parts of pH regulator; the component B comprises the following components in parts by weight: 35 parts of a silane coupling agent.
The preparation method of the stain-resistant antibacterial wall coating comprises the following steps:
(1) sequentially adding the sol, the resin and the photocatalyst into a container, uniformly stirring by using a stirrer (the diameter of a rotary table is 10cm) at the speed of 500 revolutions per minute, and slowly adding the auxiliary agent under the stirring condition for fully dissolving; then adding the antibacterial agent and the pigment filler, uniformly stirring at the speed of 1500 r/min, and grinding by using a horizontal grinder until the fineness reaches 5 um; finally, adding the pH regulator, and regulating the pH value to 6 to obtain a component A; mixing various silane coupling agents, and uniformly stirring to obtain a component B;
(2) and (2) mixing the component A and the component B prepared in the step (1), slowly stirring for 1 hour at the speed of 300 r/min until the coating is in a uniform and stable state, and cooling to room temperature to prepare the stain-resistant antibacterial wall coating.
Application example
The stain-resistant antibacterial wall coating prepared in example 1 was subjected to a performance test. The results are shown in tables 1 and 2:
TABLE 1
| Hardness (GB/T6739-2006 paint film hardness by pencil method for color paint and varnish) | 4H |
| Abrasion resistance (GB/T23988-2009 paint abrasion resistance determination shakeout method) | 8L/um |
| Antibacterial property (GB/T21866-2008) | 99.99％ |
| Mildew resistance (GB/T1741-2007) | Level 0 |
| Virus inactivating activity (ISO21702-2019) | 97.3％ |
| Formaldehyde removal efficiency (JC/T1074-2008 indoor air purification function coating material purification performance) | 85％ |
TABLE 2
As can be seen from the data in tables 1 and 2, the surface drying time and the actual drying time of the paint are very short, the construction is convenient, the light transmittance is high, the color of the primer is clear and visible, and the attractiveness is not influenced; the stain resistance effect is far greater than the national standard, and the superstrong stain resistance of the coating is reflected; the yellowing resistance is far greater than the national standard, and the excellent weather resistance of the coating is reflected; the paint has extremely high hardness and wear resistance, reflects excellent physical properties of the paint, and is not easy to damage and durable as new; excellent performances of antibiosis, mildew resistance, virus inactivation, formaldehyde removal and the like, and creates a healthy and safe living environment for users.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The stain-resistant antibacterial wall paint is characterized by comprising a component A and a component B:
wherein the component A comprises the following components in parts by weight: 25-30 parts of pigment filler, 15-20 parts of sol, 3-8 parts of auxiliary agent, 10-15 parts of resin, 15-20 parts of photocatalyst, 1-6 parts of antibacterial agent and 1-6 parts of pH regulator;
the component B comprises the following components in parts by weight: 30-35 parts of a silane coupling agent.
2. The stain-resistant antibacterial wall coating according to claim 1, wherein the pigment and filler is one or more selected from titanium dioxide, bentonite, mica powder and barium sulfate.
3. The stain-resistant antibacterial wall lining material according to claim 1, wherein said sol is silica sol or aluminum sol.
4. The stain-resistant antibacterial wall surface coating according to claim 1, wherein the auxiliary agent is one or more selected from a dispersing agent, a wetting agent and a leveling agent.
5. The stain-resistant antibacterial wall coating according to claim 4, wherein the dispersant is selected from one or more of surfactant, ethyl acetate and fatty alcohol-polyoxyethylene ether, wherein the surfactant is one or more of sodium dodecyl benzene sulfonate, cetyl trimethyl ammonium bromide, tween 80 and tween 60; the wetting agent adopts PE-100; the leveling agent is an organic silicon leveling agent or an organic silane leveling agent.
6. The stain-resistant, antibacterial wall lining paint according to claim 1, wherein said resin is an acrylic resin.
7. The stain-resistant, antibacterial wall lining according to claim 1 wherein said antibacterial agent is a silver ion antibacterial agent.
8. The stain-resistant, antibacterial wall lining according to claim 1 wherein said pH modifier is formic acid or acetic acid.
9. The stain-resistant antibacterial wall lining material as claimed in claim 1, wherein said silane coupling agent is selected from one or more of methyltrimethoxysilane, KH560 and phenyltrimethoxysilane.
10. The method for preparing the stain-resistant antibacterial wall coating according to any one of claims 1 to 9, characterized by comprising the following steps:
(1) sequentially adding the sol, the resin and the photocatalyst into a container, uniformly stirring, and slowly adding the auxiliary agent under the stirring condition for fully dissolving; then adding the antibacterial agent and the pigment filler, stirring uniformly, and fully grinding; finally, adding the pH regulator, and regulating the pH to 5.5-6 to obtain a component A; mixing various silane coupling agents, and uniformly stirring to obtain a component B;
(2) and (2) mixing the component A and the component B prepared in the step (1) and uniformly stirring until the coating is in a uniform and stable state, and cooling to room temperature to prepare the stain-resistant antibacterial wall coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110358441.9A CN113150633A (en) | 2021-04-01 | 2021-04-01 | Stain-resistant antibacterial wall coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110358441.9A CN113150633A (en) | 2021-04-01 | 2021-04-01 | Stain-resistant antibacterial wall coating and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113817345A (en) * | 2021-08-12 | 2021-12-21 | 上海金力泰化工股份有限公司 | Sand-blasting-free pretreatment 9H-hardness ceramic coating and preparation method thereof |
| CN114836064A (en) * | 2022-05-11 | 2022-08-02 | 绍兴市暖壹节能科技有限公司 | Ceramic microsphere gel material and preparation method thereof |
| CN116063891A (en) * | 2023-03-09 | 2023-05-05 | 常州天瑞新材料科技有限公司 | Nanometer super-stain-resistant coating and preparation method thereof |
| CN116120835A (en) * | 2023-02-23 | 2023-05-16 | 广西南宁维一防腐科技有限公司 | Wall coating and preparation method thereof |
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| CN104387816A (en) * | 2014-11-28 | 2015-03-04 | 佛山市南海万磊建筑涂料有限公司 | Multifunctional inorganic diatom ooze coating and preparation method thereof |
| CN110183878A (en) * | 2018-04-02 | 2019-08-30 | 常州天瑞新材料科技有限公司 | A kind of ceramic coating and preparation method thereof with environmental protection self-cleaning antibacterial damage resistant effect |
| CN112251140A (en) * | 2020-10-28 | 2021-01-22 | 常州天瑞新材料科技有限公司 | Stain-resistant antibacterial ceramic coating |
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2021
- 2021-04-01 CN CN202110358441.9A patent/CN113150633A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104387816A (en) * | 2014-11-28 | 2015-03-04 | 佛山市南海万磊建筑涂料有限公司 | Multifunctional inorganic diatom ooze coating and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113817345A (en) * | 2021-08-12 | 2021-12-21 | 上海金力泰化工股份有限公司 | Sand-blasting-free pretreatment 9H-hardness ceramic coating and preparation method thereof |
| CN114836064A (en) * | 2022-05-11 | 2022-08-02 | 绍兴市暖壹节能科技有限公司 | Ceramic microsphere gel material and preparation method thereof |
| CN114836064B (en) * | 2022-05-11 | 2023-02-14 | 绍兴市暖壹节能科技有限公司 | Ceramic microsphere gel material and preparation method thereof |
| CN116120835A (en) * | 2023-02-23 | 2023-05-16 | 广西南宁维一防腐科技有限公司 | Wall coating and preparation method thereof |
| CN116063891A (en) * | 2023-03-09 | 2023-05-05 | 常州天瑞新材料科技有限公司 | Nanometer super-stain-resistant coating and preparation method thereof |
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Application publication date: 20210723 |