CN114231066A - Air purification nano coating and preparation method and application thereof - Google Patents
Air purification nano coating and preparation method and application thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
Abstract
The invention discloses an air purification nano coating, a preparation method and an application thereof, wherein the air purification nano coating is prepared from the following raw materials in parts by weight: 15-30 parts of nano tourmaline powder, 5-10 parts of nano titanium dioxide powder, 5-10 parts of activated carbon powder, 5-10 parts of zeolite powder, 20-30 parts of volcanic powder, 5-10 parts of nano silver powder, 10-20 parts of nano bamboo charcoal powder, 4-12 parts of graphene powder, 4-8 parts of sodium silicate, 10-15 parts of acrylic acid, 10-20 parts of ethanol and 5-10 parts of water. The air purification coating effectively promotes the release of organic compounds in the material through the limitation of all raw materials, and simultaneously can remove the organic compounds and has excellent bactericidal action.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to an air purification nano coating and a preparation method and application thereof.
Background
With the improvement of living standard, people have higher and higher requirements on living and working environments, however, the existing indoor decoration materials can volatilize organic compounds to pollute indoor air environment, and living in the environment can cause damage to bodies, especially to infants.
At present, an adsorption method is generally adopted to remove organic compounds in the air, however, the adsorption method only adsorbs the organic compounds into an adsorption material, and decomposition of the organic compounds cannot be realized, and the organic compounds in the adsorption material can be recycled into the air after adsorption saturation, so that secondary pollution is caused.
Disclosure of Invention
The invention aims to provide an air purification nano coating, a preparation method and application thereof, wherein the air purification nano coating can promote the release of organic compounds in materials, and has the functions of removing the organic compounds and excellent sterilization.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
the invention provides an air purification nano coating, which is prepared from the following raw materials in parts by weight:
15-30 parts of nano tourmaline powder, 5-10 parts of nano titanium dioxide powder, 5-10 parts of activated carbon powder, 5-10 parts of zeolite powder, 20-30 parts of volcanic powder, 5-10 parts of nano silver powder, 10-20 parts of nano bamboo charcoal powder, 4-12 parts of graphene powder, 4-8 parts of sodium silicate, 10-15 parts of acrylic acid, 10-20 parts of ethanol and 5-10 parts of water.
According to the nano coating, the nano tourmaline powder, the volcanic rock powder and the nano white bamboo charcoal powder can release far infrared light waves under the heating condition, and the far infrared light waves penetrate deep layers of the decorative material layer by layer to promote molecular motion, so that the release of organic compounds in the decorative material is accelerated; then the activated carbon powder and the zeolite powder can adsorb organic compounds released into the air, and the organic compounds are subjected to photocatalytic degradation by the nano titanium dioxide powder, so that the aim of thoroughly removing the organic compounds is fulfilled; in addition, the nano tourmaline powder, the nano silver powder and the nano titanium dioxide adsorbed on the surface and inside the pore diameter of the activated carbon powder can be transmitted to the air along with far infrared light waves in the heating process to accelerate the removal of organic compounds in the air, and the nano tourmaline powder, the nano silver powder and the nano titanium dioxide are gradually adsorbed on the surface of the decorative material to accelerate the release of the organic compounds inside the decorative material and sterilize the surface of the decorative material along with the increase of time.
Preferably, the graphene powder is graphene oxide powder; the graphene powder in the nano coating can promote heat transfer, improve far infrared release strength of the nano coating, improve adsorption effect on organic compounds and be beneficial to improving purification effect of the nano coating.
Preferably, the air purification nano coating is prepared from the following raw materials in parts by weight:
20-25 parts of nano tourmaline powder, 8-10 parts of nano titanium dioxide powder, 6-8 parts of activated carbon powder, 6-8 parts of zeolite powder, 20-25 parts of volcanic powder, 8-10 parts of nano silver powder, 14-16 parts of nano bamboo charcoal powder, 8-12 parts of graphene powder, 6-8 parts of sodium silicate, 12-14 parts of acrylic acid, 15-20 parts of ethanol and 8-10 parts of water.
Preferably, the air purification nano coating is prepared from the following raw materials in parts by weight:
22 parts of nano tourmaline powder, 8 parts of nano titanium dioxide powder, 6 parts of activated carbon powder, 8 parts of zeolite powder, 22 parts of volcanic rock powder, 8 parts of nano silver powder, 15 parts of nano bamboo charcoal powder, 10 parts of graphene powder, 6 parts of sodium silicate, 12 parts of acrylic acid, 15 parts of ethanol and 8 parts of water.
In the invention, the purification effect of the nano coating is optimal by further limiting the proportion of the raw materials for preparing the nano coating.
In the invention, the particle size of the nano titanium dioxide powder is not strictly limited, for example, the nano titanium dioxide powder can be conventionally selected according to actual needs; preferably, the particle diameter of the nano titanium dioxide is 10-30 nm; the nano coating has better purification effect by the limitation of the particle size.
Preferably, the granularity of the activated carbon powder is 100-200 meshes; studies have shown that too large a mesh size of the activated carbon powder results in a reduction in surface area, while too small results in coverage of other raw materials, resulting in a reduction in purification effect.
Preferably, the mesh particle size of the zeolite powder and the volcanic rock powder is 50-100 meshes.
The second aspect of the present invention provides a preparation method of the air purification nano coating, wherein the preparation method comprises the following steps:
(a) adding sodium silicate, propionic acid and ethanol into water, and stirring to obtain a mixed solution;
(b) uniformly mixing the activated carbon powder, the zeolite powder and the volcanic rock powder to obtain a mixed material;
(c) and mixing and uniformly stirring the mixed solution and the mixture, then adding nano tourmaline powder, nano titanium dioxide powder, graphene powder, nano silver powder and nano white bamboo charcoal powder, and stirring at a high speed to obtain the air purification nano coating.
Preferably, in the step (a), the rotation speed of the uniform stirring is 100-200 r/min, and the time is 5-10 min.
Preferably, in the step (c), the stirring speed is 50-100 r/min, and the time is 10-20 min;
the high-speed stirring speed is 200-400 r/min, and the time is 30-60 min.
A third aspect of the present invention provides a method for purifying indoor air, the method comprising the steps of:
and spraying the air purification nano coating on an aluminum plate, placing the aluminum plate indoors, and heating the aluminum plate to 100-200 ℃ for air purification.
Compared with the prior art, the invention has the beneficial effects that at least:
according to the nano coating, the nano tourmaline powder, the volcanic rock powder and the nano white bamboo charcoal powder can release far infrared light waves under the heating condition, and the far infrared light waves penetrate deep layers of the decorative material layer by layer to promote molecular motion, so that the release of organic compounds in the decorative material is accelerated; then the activated carbon powder and the zeolite powder can adsorb organic compounds released into the air, and the organic compounds are subjected to photocatalytic degradation by the nano titanium dioxide powder, so that the aim of thoroughly removing the organic compounds is fulfilled; in addition, the nano tourmaline powder, the nano silver powder and the nano titanium dioxide adsorbed on the surfaces of the activated carbon powder and the zeolite and in the pore diameters can be transmitted to the air along with far infrared light waves in the heating process to accelerate the removal of organic compounds in the air, and the nano tourmaline powder, the nano silver powder and the nano titanium dioxide are gradually adsorbed on the surface of the decorative material to accelerate the release of the organic compounds in the decorative material and sterilize the surface of the decorative material along with the prolonging of time.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the following embodiments. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
The raw materials used in the following examples of the present invention are all commercially available products unless otherwise specified.
Example 1
Air purification nano coating
The air purification nano coating is prepared from the following raw materials in parts by weight:
30 parts of nano tourmaline powder, 10 parts of nano titanium dioxide powder, 5 parts of activated carbon powder, 10 parts of zeolite powder, 20 parts of volcanic rock powder, 5 parts of nano silver powder, 20 parts of nano bamboo charcoal powder, 4 parts of graphene powder, 8 parts of sodium silicate, 10 parts of acrylic acid, 20 parts of ethanol and 5 parts of water, wherein the particle diameter of the nano titanium dioxide powder is 10-30 nm; the granularity of the active carbon powder is 100-200 meshes; the mesh particle size of the zeolite powder and the volcanic rock powder is 50-100 meshes.
Second, preparation method
The preparation method of the air purification nano coating comprises the following steps:
(a) adding sodium silicate, propionic acid and ethanol into water, and stirring at 150r/min for 10min to obtain mixed solution;
(b) uniformly mixing the activated carbon powder, the zeolite powder and the volcanic rock powder to obtain a mixed material;
(c) and mixing the mixed solution and the mixture, stirring for 15min at the speed of 80r/min, adding nano tourmaline powder, nano titanium dioxide powder, graphene powder, nano silver powder and nano white bamboo charcoal powder, and stirring for 50min at the high speed of 300r/min to obtain the air purification nano coating.
Example 2
Air purification nano coating
The air purification nano coating is prepared from the following raw materials in parts by weight:
15 parts of nano tourmaline powder, 5 parts of nano titanium dioxide powder, 10 parts of activated carbon powder, 5 parts of zeolite powder, 30 parts of volcanic rock powder, 10 parts of nano silver powder, 10 parts of nano bamboo charcoal powder, 12 parts of graphene oxide powder, 4 parts of sodium silicate, 15 parts of acrylic acid, 10 parts of ethanol and 10 parts of water, wherein the particle diameter of the nano titanium dioxide powder is 10-30 nm; the granularity of the active carbon powder is 100-200 meshes; the mesh particle size of the zeolite powder and the volcanic rock powder is 50-100 meshes.
Second, preparation method
The preparation method of the air purification nano coating comprises the following steps:
(a) adding sodium silicate, propionic acid and ethanol into water, and stirring at 150r/min for 10min to obtain mixed solution;
(b) uniformly mixing the activated carbon powder, the zeolite powder and the volcanic rock powder to obtain a mixed material;
(c) and mixing the mixed solution and the mixture, stirring for 15min at the speed of 80r/min, adding nano tourmaline powder, nano titanium dioxide powder, graphene powder, nano silver powder and nano white bamboo charcoal powder, and stirring for 50min at the high speed of 300r/min to obtain the air purification nano coating.
Example 3
Air purification nano coating
The air purification nano coating is prepared from the following raw materials in parts by weight:
25 parts of nano tourmaline powder, 8 parts of nano titanium dioxide powder, 8 parts of activated carbon powder, 6 parts of zeolite powder, 25 parts of volcanic rock powder, 8 parts of nano silver powder, 14 parts of nano bamboo charcoal powder, 12 parts of graphene oxide powder, 8 parts of sodium silicate, 12 parts of acrylic acid, 20 parts of ethanol and 8 parts of water, wherein the particle diameter of the nano titanium dioxide powder is 10-30 nm; the granularity of the active carbon powder is 100-200 meshes; the mesh particle size of the zeolite powder and the volcanic rock powder is 50-100 meshes.
Second, preparation method
The preparation method of the air purification nano coating comprises the following steps:
(a) adding sodium silicate, propionic acid and ethanol into water, and stirring at 150r/min for 10min to obtain mixed solution;
(b) uniformly mixing the activated carbon powder, the zeolite powder and the volcanic rock powder to obtain a mixed material;
(c) and mixing the mixed solution and the mixture, stirring for 15min at the speed of 80r/min, adding nano tourmaline powder, nano titanium dioxide powder, graphene powder, nano silver powder and nano white bamboo charcoal powder, and stirring for 50min at the high speed of 300r/min to obtain the air purification nano coating.
Example 4
Air purification nano coating
The air purification nano coating is prepared from the following raw materials in parts by weight:
20 parts of nano tourmaline powder, 10 parts of nano titanium dioxide powder, 6 parts of activated carbon powder, 8 parts of zeolite powder, 20 parts of volcanic rock powder, 10 parts of nano silver powder, 16 parts of nano bamboo charcoal powder, 8 parts of graphene oxide powder, 6 parts of sodium silicate, 14 parts of acrylic acid, 15 parts of ethanol and 10 parts of water, wherein the particle diameter of the nano titanium dioxide powder is 10-30 nm; the granularity of the active carbon powder is 100-200 meshes; the mesh particle size of the zeolite powder and the volcanic rock powder is 50-100 meshes.
Second, preparation method
The preparation method of the air purification nano coating comprises the following steps:
(a) adding sodium silicate, propionic acid and ethanol into water, and stirring at 150r/min for 10min to obtain mixed solution;
(b) uniformly mixing the activated carbon powder, the zeolite powder and the volcanic rock powder to obtain a mixed material;
(c) and mixing the mixed solution and the mixture, stirring for 15min at the speed of 80r/min, adding nano tourmaline powder, nano titanium dioxide powder, graphene powder, nano silver powder and nano white bamboo charcoal powder, and stirring for 50min at the high speed of 300r/min to obtain the air purification nano coating.
Example 5
Air purification nano coating
The air purification nano coating is prepared from the following raw materials in parts by weight:
22 parts of nano tourmaline powder, 8 parts of nano titanium dioxide powder, 6 parts of activated carbon powder, 8 parts of zeolite powder, 22 parts of volcanic rock powder, 8 parts of nano silver powder, 15 parts of nano bamboo charcoal powder, 10 parts of graphene oxide powder, 6 parts of sodium silicate, 12 parts of acrylic acid, 15 parts of ethanol and 8 parts of water, wherein the particle diameter of the nano titanium dioxide powder is 10-30 nm; the granularity of the active carbon powder is 100-200 meshes; the mesh particle size of the zeolite powder and the volcanic rock powder is 50-100 meshes.
Second, preparation method
The preparation method of the air purification nano coating comprises the following steps:
(a) adding sodium silicate, propionic acid and ethanol into water, and stirring at 150r/min for 10min to obtain mixed solution;
(b) uniformly mixing the activated carbon powder, the zeolite powder and the volcanic rock powder to obtain a mixed material;
(c) and mixing the mixed solution and the mixture, stirring for 15min at the speed of 80r/min, adding nano tourmaline powder, nano titanium dioxide powder, graphene powder, nano silver powder and nano white bamboo charcoal powder, and stirring for 50min at the high speed of 300r/min to obtain the air purification nano coating.
Example 6
The embodiment is a method for purifying indoor air, which comprises the following steps:
the air-purifying nanocoating of example 5 was sprayed onto an aluminum plate with a spraying thickness of 3mm, the aluminum plate was placed indoors and the air-purified by heating the aluminum plate to 200 ℃.
Comparative example 1
This comparative example is an air purification nano-coating, which was prepared from substantially the same raw materials as the air purification nano-coating of example 5 except that the zeolite powder was replaced with an equal amount of activated carbon powder.
The preparation method of the air purification nano coating is the same as that of the embodiment 5.
Comparative example 2
This comparative example is an air purification nano-coating, which is prepared from substantially the same raw materials as the air purification nano-coating of example 5 except that the activated carbon powder was replaced with an equal amount of zeolite powder.
The preparation method of the air purification nano coating is the same as that of the embodiment 5.
Comparative example 3
The comparative example is an air purification nano-coating, and the air purification nano-coating has basically the same preparation raw materials as the air purification nano-coating of example 5, except that the graphene oxide powder is replaced by the same amount of activated carbon powder.
The preparation method of the air purification nano coating is the same as that of the embodiment 5.
Examples of the experiments
1. Experiment for inhibiting bacteria
Test strains: staphylococcus albus ATCC8799, Aspergillus niger ATCC16404, test materials example 5 and comparative examples 1 to 3 of the air purification nanocoating; the test material was used as in example 6;
the antibacterial experimental method refers to 'Disinfection technical Specification' 2002 edition, 2.1.2.5.4.4;
the test is carried out for 3 times, the average value is calculated, and the test result is shown in table 1;
TABLE 1
As can be seen from table 1, the air purification coatings of example 5 and comparative examples 1 to 3 all have bactericidal performance, however, the air purification coatings of example 5 and comparative example 2 of the present application have the best bactericidal effect, compared with example 3, and the worst of comparative example 1; it can be seen that, in comparative example 1, the adsorption effect on nano silver is enhanced after the graphene oxide is replaced by the activated carbon, and the heat transfer is reduced, so that the diffusion of the nano particles is reduced, while in comparative example 1, the zeolite can better promote the diffusion of the nano particles in the coating compared with the activated carbon.
2. Removal experiment of Formaldehyde, benzene and Ammonia
Test equipment:
test chamber (1 m)3) Only a constant-current atmospheric sampler, an ultraviolet-visible spectrophotometer and a gas chromatograph;
the test conditions are as follows:
ambient temperature: 20 +/-2 ℃;
ambient humidity: 50 + -10% RH;
the testing steps are as follows:
placing the aluminum plate coated with the sample in a sample chamber according to the method of the embodiment 6, placing no sample in a comparison chamber, and normally operating a prototype in the experimental process;
putting a glass plate into the bottom of the test chamber, closing the chamber door, taking pollutants (3 mu l of analytically pure formaldehyde, 3 mu l of analytically pure benzene and 6 mu l of analytically pure ammonia) by using a micro-injector, dripping the pollutants into the glass plate through the injection hole, and sealing the injection hole;
collecting gas in the cabin to test the concentration of the gas after the gas is sealed for 1 hour, wherein the concentration is the initial concentration, starting a fan in the cabin to run for 30min after 24 hours, then closing the fan, and collecting the gas in the cabin to test the concentration of the gas;
the results are shown in table 2:
TABLE 2
As can be seen from Table 1:
the air purification coatings of the embodiment 5 and the comparative examples 1 to 3 can remove formaldehyde, benzene and ammonia in the air, and the comparison shows that the air purification coatings of the embodiment 5 and the comparative example 1 have the best sterilization effect, the comparative example 3 times and the comparative example 2 has the worst removal effect.
3. Experiment for killing coronavirus
Strain: coronavirus HCoV-229E;
cell: huh7 cells;
test conditions
Temperature: 23-25 ℃;
relative humidity: 50-60%;
the test time is 30 min;
the method comprises the following steps:
cutting the carrier sheet into a certain area, cleaning and sterilizing, uniformly dropwise adding virus suspension into the carrier sheet, heating an aluminum plate according to the method of the embodiment 6, preheating for 30min before heating, placing the carrier sheet 1m in front of an aluminum plate to be detected after preheating, acting for 30min, and keeping illumination during the acting period; recovering virus in the carrier plate after acting for a specified time, setting a control group for the test, and repeating for 3 times;
the test results are shown in table 3:
TABLE 3
As can be seen from Table 3:
this application air purification nanometer coating can effectively kill the virus.
4. Mite removal test
Test equipment
Dissecting mirror or stereomicroscope, magnifying glass, mite counting tool, counter, writing brush, timer, etc.;
test conditions
Ambient temperature: 20 +/-2 ℃;
ambient humidity: 50 + -10% RH;
the test steps are as follows:
according to the method of the embodiment 6, after an aluminum plate is preheated for 30min, mites are placed in a glass dish with the diameter of 5cm and the height of 1cm, the position of the coating 100cm away from the glass dish is controlled, and the test is carried out for 30 min;
after the operation is finished, observing the number of the live mites in the technical square before the test by using a dissecting mirror or a stereoscopic microscope and a magnifying glass, and counting again;
the test is repeated for 3 times, and the acaricidal rate is respectively calculated;
the calculation results are shown in table 4;
TABLE 4
As can be seen from Table 4;
this application air purification nanometer coating can effectively kill the mite.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. The air purification nano coating is characterized by being prepared from the following raw materials in parts by weight:
15-30 parts of nano tourmaline powder, 5-10 parts of nano titanium dioxide powder, 5-10 parts of activated carbon powder, 5-10 parts of zeolite powder, 20-30 parts of volcanic powder, 5-10 parts of nano silver powder, 10-20 parts of nano bamboo charcoal powder, 4-12 parts of graphene powder, 4-8 parts of sodium silicate, 10-15 parts of acrylic acid, 10-20 parts of ethanol and 5-10 parts of water.
2. The air-purifying nano coating according to claim 1, wherein the air-purifying nano coating is prepared from the following raw materials in parts by weight:
20-25 parts of nano tourmaline powder, 8-10 parts of nano titanium dioxide powder, 6-8 parts of activated carbon powder, 6-8 parts of zeolite powder, 20-25 parts of volcanic powder, 8-10 parts of nano silver powder, 14-16 parts of nano bamboo charcoal powder, 8-12 parts of graphene powder, 6-8 parts of sodium silicate, 12-14 parts of acrylic acid, 15-20 parts of ethanol and 8-10 parts of water.
3. The air-purifying nano coating according to claim 1, wherein the air-purifying nano coating is prepared from the following raw materials in parts by weight:
22 parts of nano tourmaline powder, 8 parts of nano titanium dioxide powder, 6 parts of activated carbon powder, 8 parts of zeolite powder, 22 parts of volcanic rock powder, 8 parts of nano silver powder, 15 parts of nano bamboo charcoal powder, 10 parts of graphene powder, 6 parts of sodium silicate, 12 parts of acrylic acid, 15 parts of ethanol and 8 parts of water.
4. The air-purifying nano-coating according to any one of claims 1 to 3, wherein the particle size of the nano-titania particles is 10 to 30 nm.
5. The air-purifying nano-coating according to any one of claims 1 to 3, wherein the activated carbon powder has a mesh size of 100 to 200 mesh; the mesh particle size of the zeolite powder and the volcanic rock powder is 50-100 meshes.
6. The air-purifying nano-coating according to any one of claims 1 to 3, wherein the graphene powder is graphene oxide powder.
7. The method for preparing the air-purifying nano coating according to any one of claims 1 to 6, characterized by comprising the following steps:
(a) adding sodium silicate, propionic acid and ethanol into water, and stirring to obtain a mixed solution;
(b) uniformly mixing the activated carbon powder, the zeolite powder and the volcanic rock powder to obtain a mixed material;
(c) and mixing and uniformly stirring the mixed solution and the mixture, then adding nano tourmaline powder, nano titanium dioxide powder, graphene powder, nano silver powder and nano white bamboo charcoal powder, and stirring at a high speed to obtain the air purification nano coating.
8. The method according to claim 7, wherein in the step (a), the stirring is performed at a rotation speed of 100 to 200r/min for 5 to 10 min.
9. The preparation method according to claim 7, wherein in the step (c), the stirring speed is 50-100 r/min, and the stirring time is 10-20 min;
the high-speed stirring speed is 200-400 r/min, and the time is 30-60 min.
10. An indoor air purification method is characterized by comprising the following steps:
spraying the air purification nano coating of any one of claims 1 to 6 on an aluminum plate, placing the aluminum plate in a room, and heating the aluminum plate to 100 to 200 ℃ for air purification.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114849412A (en) * | 2022-05-28 | 2022-08-05 | 吕国杰 | Preparation process of formaldehyde purification material |
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