CN111849231A - Self-cleaning formaldehyde-removing long-acting antibacterial nano coating - Google Patents
Self-cleaning formaldehyde-removing long-acting antibacterial nano coating Download PDFInfo
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- CN111849231A CN111849231A CN202010659560.3A CN202010659560A CN111849231A CN 111849231 A CN111849231 A CN 111849231A CN 202010659560 A CN202010659560 A CN 202010659560A CN 111849231 A CN111849231 A CN 111849231A
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/10—Epoxy resins modified by unsaturated compounds
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1681—Antifouling coatings characterised by surface structure, e.g. for roughness effect giving superhydrophobic coatings or Lotus effect
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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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special 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
- 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
- C08K2201/011—Nanostructured additives
Abstract
The invention relates to a self-cleaning formaldehyde-removing long-acting antibacterial nano coating, which comprises the following components: at least one of substrates such as perfluoroalkyl methacrylic acid copolymer, epoxy acrylate, fluorinated waterborne polyurethane, polydimethylsiloxane and the like, inorganic nano composite materials, additives and solvents. Compared with the prior art, the self-cleaning formaldehyde-removing long-acting antibacterial nano coating prepared by the invention has the functions of self-cleaning and long-acting antibacterial on the basis of formaldehyde removal, can be widely applied to the surfaces of various substrates such as wood, porcelain, metal, plastic and the like, is simple to operate, can quickly form a film, and is suitable for various application scenes such as hospitals, families, schools, markets and the like.
Description
Technical Field
The invention belongs to the field of material science and engineering, and relates to a self-cleaning formaldehyde-removing long-acting antibacterial nano coating.
Background
New world abuse crown diseases have sounded police bells for public health safety. In fact, the living environment is increasingly deteriorated, not only viruses, bacteria and formaldehyde bring much trouble to the daily life of human beings, for example, infectious disease tuberculosis caused by tubercle bacillus, so far, 170 million people are killed every year in the global world, and 1000 million new diseases occur; also serious, 200 ten thousand people in China are pathogenic to formaldehyde every year, and more than 90% of leukemia patients in hospitals live indoors with excessive formaldehyde for a long time before suffering from diseases. Therefore, the development of the coating with excellent performance, antibacterial property and formaldehyde removal function has important social application value.
The publication number CN111298631A discloses a generating liquid for removing formaldehyde by negative ions and a preparation method thereof, and discloses a generating liquid for removing formaldehyde by negative ions and a preparation method thereof, wherein the generating liquid comprises the following raw materials: anion liquid, fendorin, mould inhibitor, antiseptic and deionized water, this application relates to air purification technical field. According to the generating liquid for removing formaldehyde by negative ions and the preparation method thereof, fendorin and deionized water are sequentially added into a mixing container, and an ultrasonic dispersion machine is adopted to carry out dispersion treatment on the mixed solution in the mixing container, so that the generating liquid for removing formaldehyde can not only remove indoor formaldehyde gas, but also effectively treat pollutants such as benzene, TVOC and the like and eliminate harmful gases such as second-hand smoke, besides, the generating liquid can generate the generating amount of 3000 minus oxygen ions/cm 2 through the negative ion liquid in the generating liquid, the lasting years are not reduced for a long time, the effective time of the generating liquid is ensured, in addition, the negative ion liquid generates irreversible water after the formaldehyde gas is treated, and the rebound phenomenon is effectively avoided. The invention discloses a composition for removing formaldehyde, sterilizing and removing peculiar smell, belongs to the field of disinfection products and relates to a composition for removing formaldehyde, sterilizing and removing peculiar smell, and the disclosure of the composition is CN 111248222A. The composition for removing formaldehyde, sterilizing and removing peculiar smell comprises: a chlorite salt; a mixture of a ferrous compound and a ferric compound; and a catalyst. The composition for removing formaldehyde, sterilizing and removing peculiar smell can quickly generate a large amount of chlorine dioxide smoke after being mixed with acid, the reaction is full and complete, the residues are few, the utilization rate of chlorine dioxide is higher, and the effects of removing formaldehyde, sterilizing and removing peculiar smell are better than those of the prior products. The above disclosure has an unsatisfactory disadvantage in terms of safety of use.
The existing commercial antibacterial coating is often made of a single high-molecular antibacterial material or by a method of directly adding nano-silver into the original coating, but the coating often has the problems of non-lasting antibacterial effect, single function and troublesome cleaning after being used, and brings great troubles to consumers. An antibacterial coating integrating efficient antibacterial formaldehyde removal and self-cleaning functions is a practical situation to be solved urgently in the development of antibacterial industry.
Disclosure of Invention
In order to overcome the defects in the prior art and improve the technology, the invention provides a self-cleaning formaldehyde-removing long-acting antibacterial nano coating.
In order to realize the purpose of the invention, the invention provides the following technical scheme:
the technical scheme disclosed by the invention particularly relates to a self-cleaning formaldehyde-removing long-acting antibacterial nano coating which is characterized by being prepared by blending the following components: 5-95% of matrix, 1-10% of inorganic nano composite material, 0.1-10% of additive and the balance of solvent.
Further, in the technical scheme of the invention, the substrate of the self-cleaning formaldehyde-removing long-acting antibacterial nano coating comprises at least one of perfluoroalkyl methacrylic acid copolymer, epoxy acrylate, fluorinated waterborne polyurethane or polydimethylsiloxane.
Furthermore, in the technical scheme of the invention, the self-cleaning formaldehyde-removing long-acting antibacterial nano coating is prepared by using spherical or rod-shaped nano TiO as a nano composite material2The material is a substrate, and another kind or a plurality of kinds of nano particles are grown on the material, so that a secondary structure that the surface of a nano large sphere is covered with a nano small sphere or the surface of a nano rod is covered with the nano small sphere is formed. The grown nanoparticles include but are not limited to metal nanoparticles of Ag, Au, Cu, etc.
Furthermore, the technical scheme of the invention also comprises a preparation method of the nano composite material for the self-cleaning formaldehyde-removing long-acting antibacterial nano coating, which is characterized in that spherical nano TiO2Rod-shaped nanometer TiO with the diameter of 2-200nm2The diameter is 2-50nm, the length is 5-300nm, and the size of the Ag, Au, Cu and other metal nano particles growing on the surface is 2-50 nm.
Further, the preparation method of the nano composite material for the self-cleaning formaldehyde-removing long-acting antibacterial nano coating adopts a photochemical deposition method, and specifically, spherical or rod-shaped nano TiO is used2Dispersing into aqueous solution, adding one or more metal ion-containing compounds including but not limited to AgNO3、HAuCl4、Cu(NO3)2And irradiating with simulated sunlight or ultraviolet light, stirring for 10-100min, centrifuging to obtain precipitate, and drying.
Further, in the technical scheme of the invention, the additive of the self-cleaning formaldehyde-removing long-acting antibacterial nano-coating comprises but is not limited to one or more of pentaerythritol triacrylate, dipentaerythritol hexaacrylate, trimethylolpropane triacrylate, linear polyacrylate, diphenyl ketone, 2-hydroxy-2-methyl-1-phenyl-1-acetone or 1-hydroxycyclohexyl phenyl ketone.
Further, in the technical scheme of the invention, the solvent of the self-cleaning formaldehyde-removing long-acting antibacterial nano-coating can be water, or can be organic solvents such as methanol, ethanol, acetone, tetrahydrofuran, ethyl acetate, dimethyl sulfoxide or dimethylformamide and the like.
Compared with the prior art, the invention has the following advantages:
1. the self-cleaning formaldehyde-removing long-acting antibacterial nano coating in the technical scheme is characterized in that compared with a modified polymer antibacterial product on the market or an antibacterial product with single-component nano particles directly added into the coating, the self-cleaning formaldehyde-removing long-acting antibacterial nano coating has the advantages that rod-shaped or spherical TiO is constructed2The multi-layer level composite nano antibacterial material for the substrate and the metal nano particles grown on the substrate has the advantages that: (1) nano TiO 2 2The coating can play a role in removing formaldehyde under the condition of light excitation, and enriches the function of the coating; (2) attached to nano TiO2On the substrate, the particle size of the metal nano material with the antibacterial effect can be smaller, the specific surface area of the material is increased, the dispersibility is enhanced, and the escape caused by too small particles is reduced, so that the integral antibacterial effect is improved; (3) by the method, a two-level coarse structure similar to the lotus leaf surface is constructed in one step, and the super-hydrophobic and oleophobic performance is endowed to the coating. Thereby realizing the overall self-cleaning, formaldehyde removal and antibacterial multifunctionality of the coating.
2. According to the technical scheme, the self-cleaning formaldehyde-removing long-acting antibacterial nano coating can be long-acting antibacterial, can be used for efficiently removing formaldehyde in the environment, is super-hydrophobic and oleophobic, is very easy to clean, can be coated on the surfaces of various materials such as wood, porcelain, metal and plastic, is simple to operate, can be quickly formed into a film, and is suitable for various application scenes such as hospitals, families, schools and markets.
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the implementation examples of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be made by a person skilled in the art without inventive effort based on the described embodiments of the invention, fall within the scope of protection of the invention.
Detailed Description
The invention is further described below with reference to specific examples, and any limited number of modifications made within the scope of the claims of the invention are still within the scope of the claims of the invention.
The preparation and application of the self-cleaning formaldehyde-removing long-acting antibacterial nano coating for the glass surface are as follows:
example 1:
firstly, 50nm diameter nano TiO22.5 g of the powder was dispersed in a suitable amount of water, and 0.1mol/l AgNO was added to the system3And (3) simulating sunlight irradiation of 20ml of aqueous solution, continuously stirring for 30min, centrifuging and drying for later use. Every 100g of the raw material liquid comprises the following components: 6.8% of a perfluoroalkyl methacrylic acid copolymer, 6% of AgNPs/TiO22% of dipentaerythritol hexaacrylate, and the balance of water. The components are fully and uniformly mixed, uniformly coated on the surface of the ceramic tile, and naturally dried. The coating is firm, durable, transparent, waterproof, oilproof and easy to clean, and has the functions of long-acting antibiosis and formaldehyde removal.
Example 2:
firstly, TiO with the diameter of 10nm and the nano length of 200nm23 g of the powder was dispersed in an appropriate amount of water, and HAuCl was added to the system at a concentration of 0.1mol/l410ml of aqueous solution and 5ml of methanol, irradiating by ultraviolet light, continuously stirring for 30min, centrifuging and drying for later use. Every 100g of the raw material liquid comprises the following components: 2% of diphenyl ketone, 1.4% of 1-hydroxycyclohexyl phenyl ketone, 9% of 1, 6-hexanediol diacrylate, 8% of acetone, 6% of AuNPs/TiO 210% tetrahydrofuran, 50% epoxy acrylate and 10% linear polyacrylate, the remainder being ethyl acetate. Mixing the above componentsUniformly performing ultrasonic treatment for 30min, uniformly coating on the surface of the plastic, and irradiating with an ultraviolet lamp for 60 s.
Comprehensive performance comparison table for self-cleaning formaldehyde-removing long-acting antibacterial nano coating
In the description herein, the particular features, structures, materials, or characteristics disclosed may be combined in any suitable manner in any one or more embodiments or examples.
A specific embodiment of the present invention is further described above with reference to examples, and this specific embodiment is intended to describe the present invention in detail, but not to limit the present invention. The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the technical concept and the protection scope of the present invention, and various modifications and improvements made to the technical concept by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. The self-cleaning formaldehyde-removing long-acting antibacterial nano coating is characterized by comprising the following components: 5-95% of matrix, 1-10% of inorganic nano composite material, 0.1-10% of additive and the balance of solvent.
2. The self-cleaning formaldehyde-removing long-acting antibacterial nano-coating according to claim 1, wherein the substrate comprises at least one of perfluoroalkyl methacrylic acid copolymer, epoxy acrylate, fluorinated aqueous polyurethane or polydimethylsiloxane.
3. The self-cleaning formaldehyde-removing long-acting antibacterial nano-coating as claimed in claim 1, wherein the nano-composite material is spherical or rod-shaped nano TiO2The material being a substrate on which one or more other nano-particles are grownThe nano particles form a secondary structure that the surfaces of the nano large spheres are covered with the nano small spheres or the surfaces of the nano rods are covered with the nano small spheres; the grown nanoparticles include but are not limited to metal nanoparticles of Ag, Au, Cu, etc.
4. The method for preparing the nano composite material for the self-cleaning formaldehyde-removing long-acting antibacterial nano coating as claimed in claim 3, wherein the spherical nano TiO is2Rod-shaped nanometer TiO with the diameter of 2-200nm2The diameter is 2-50nm, the length is 5-300nm, and the size of the Ag, Au, Cu and other metal nano particles growing on the surface is 2-50 nm.
5. The method for preparing the nano composite material for the self-cleaning formaldehyde-removing long-acting antibacterial nano coating according to claim 4, characterized in that a photochemical deposition method is adopted, in particular, spherical or rod-shaped nano TiO is adopted 2Dispersing into aqueous solution, adding one or more metal ion-containing compounds including but not limited to AgNO3、HAuCl4、Cu(NO3)2And the like, the mixture is stirred for 30min under the irradiation of simulated sunlight or ultraviolet light, and the precipitate is obtained by centrifugation and is dried for use.
6. The self-cleaning formaldehyde-removing long-acting antibacterial nano-coating according to claim 1, wherein the additive comprises one or more of pentaerythritol triacrylate, dipentaerythritol hexaacrylate, linear polyacrylate, trimethylolpropane triacrylate, benzophenone, 2-hydroxy-2-methyl-1-phenyl-1-propanone, and 1-hydroxycyclohexyl phenyl ketone.
7. The method for preparing the self-cleaning formaldehyde-removing long-acting antibacterial nano-coating according to claim 1, wherein the solvent can be water, or organic solvents such as methanol, ethanol, acetone, tetrahydrofuran, ethyl acetate, dimethyl sulfoxide, dimethyl formamide and the like.
8. The self-cleaning formaldehyde-removing long-acting antibacterial nano coating according to claim 1, which is characterized in that the coating can be coated on the surfaces of various materials such as wood, porcelain, metal, plastic and the like, and is suitable for various application scenes such as hospitals, families, schools, markets and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010659560.3A CN111849231A (en) | 2020-07-10 | 2020-07-10 | Self-cleaning formaldehyde-removing long-acting antibacterial nano coating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010659560.3A CN111849231A (en) | 2020-07-10 | 2020-07-10 | Self-cleaning formaldehyde-removing long-acting antibacterial nano coating |
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| CN202010659560.3A Pending CN111849231A (en) | 2020-07-10 | 2020-07-10 | Self-cleaning formaldehyde-removing long-acting antibacterial nano coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265169A (en) * | 2021-07-20 | 2021-08-17 | 佛山市东鹏陶瓷发展有限公司 | Antibacterial antiviral formaldehyde-removing antifouling agent and preparation method thereof, glazed tile and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975866A (en) * | 2019-11-27 | 2020-04-10 | 亚士漆(上海)有限公司 | Preparation method of noble metal and nonmetal nano titanium dioxide loaded, photocatalyst water-based paint and preparation method thereof |
-
2020
- 2020-07-10 CN CN202010659560.3A patent/CN111849231A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975866A (en) * | 2019-11-27 | 2020-04-10 | 亚士漆(上海)有限公司 | Preparation method of noble metal and nonmetal nano titanium dioxide loaded, photocatalyst water-based paint and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265169A (en) * | 2021-07-20 | 2021-08-17 | 佛山市东鹏陶瓷发展有限公司 | Antibacterial antiviral formaldehyde-removing antifouling agent and preparation method thereof, glazed tile and preparation method thereof |
| CN113265169B (en) * | 2021-07-20 | 2021-11-05 | 佛山市东鹏陶瓷发展有限公司 | Antibacterial antiviral formaldehyde-removing antifouling agent and preparation method thereof, glazed tile and preparation method thereof |
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