CN114395279B - Tourmaline mixture, tourmaline mixed coating, preparation method and application - Google Patents
Tourmaline mixture, tourmaline mixed coating, preparation method and application Download PDFInfo
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- 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
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Abstract
The invention discloses a tourmaline mixture, a tourmaline mixed coating, a preparation method and application. The tourmaline mixture comprises silicon dioxide, tourmaline and surfactant; the solid content of the silicon dioxide is 0.1-5 percent; the solid content of the tourmaline is 0.1-5 percent; the tourmaline is in the form of powder, and the particle size of the tourmaline powder is below 30 μm calculated by D50; the silica is in the form of powder, and the particle diameter of the silica powder is 50 μm or less in terms of D50; the mass ratio of the tourmaline to the silicon dioxide is (0.5-5) to (1-2); the dosage of the surfactant is 0.5-2%, and the percentage is the percentage of the mass of the surfactant in the total mass of the tourmaline mixture. The tourmaline mixed coating prepared by the invention has a rough surface and high air negative ion release concentration. The preparation method is simple and easy to operate, low in cost and environment-friendly.
Description
Technical Field
The invention relates to a tourmaline mixture, a tourmaline mixed coating, a preparation method and application.
Background
The air negative ions have the effects of sterilizing, reducing dust, cleaning air, improving immunity and regulating functional balance, so the tourmaline powder is known as 'air vitamin and auxin', has a natural electrode, can release negative ions, has no side effect and is widely applied.
The following approaches are generally used to enhance the release of negative air ions by tourmaline powder:
chinese patent document CN113072842A discloses a preparation method of tourmaline modified solution capable of releasing negative ions, which comprises the following steps: s1: weighing a certain amount of tourmaline, and mixing the tourmaline and cerium oxide to obtain an initial mixture; s2: adding a modifying solution to modify the primary mixture to obtain a modified substance; s3: mixing the modified product with polybutylene adipate-terephthalate to obtain a mixture; s4: mixing the mixture with purified water, active agent and plant extract to obtain tourmaline modified solution. This patent utilizes anhydride to modify tourmaline, introduces the anhydride active group tourmaline surface to obtain polymerizable organic tourmaline, be in the same place with degradable macromolecular material cooperation simultaneously, when solution sprayed the surface of other materials, can effectively adhere to on the material surface like this, thereby reach release anion, improve the problem of air quality.
Chinese patent document CN109796933A discloses a method for preparing tourmaline modified powder capable of releasing negative ions efficiently, which comprises grinding tourmaline raw material to particle size of 5-10 μm to obtain tourmaline powder; adding a chemical auxiliary agent into the tourmaline powder, wherein the chemical auxiliary agent is a compound of one or more of oxides and hydroxides of praseodymium, cerium and titanium, the mass of the chemical auxiliary agent accounts for 5-20% of the total mass of the tourmaline and the chemical auxiliary agent, and uniformly grinding to obtain tourmaline composite powder; the tourmaline composite powder is calcined at the temperature of 800-1000 ℃ and naturally cooled to obtain the tourmaline modified powder. The tourmaline powder is physically and chemically modified synchronously, so that the release amount of negative ions of the tourmaline powder is increased; by selecting proper exciting elements and exciting element amount, a better negative ion release effect is obtained.
However, the essence of the research is to enhance the ability of tourmaline to release negative air ions by compounding rare earth elements, and the problems of complicated process, high cost and the like exist. At present, the tourmaline mixed coating with a rough surface is difficult to prepare by the existing research.
Therefore, the preparation method which is simple to operate, low in pollution and low in cost is needed to prepare the tourmaline mixed coating with the rough surface, so that the contact area of tourmaline powder and air is increased, and the release of air negative ions is enhanced.
Disclosure of Invention
The invention aims to solve the technical problems that the preparation method of the tourmaline mixture is complex in operation, polluted and high in cost, and the prepared tourmaline mixture has low release concentration of negative air ions, and provides the tourmaline mixture, the tourmaline mixed coating, the preparation method and the application. The preparation method has the advantages of simple operation, less pollution and low cost. The prepared tourmaline mixed coating has a rough surface and high release concentration of negative ions in air.
The invention solves the technical problems through the following technical scheme.
The invention provides a tourmaline mixture, which comprises silicon dioxide, tourmaline and a surfactant;
the solid content of the silicon dioxide is 0.1-5%;
the solid content of the tourmaline is 0.1-5%;
the form of the tourmaline is generally powder, and the particle size of the tourmaline powder is below 30 μm calculated by D50;
the form of the silica is generally powder, and the particle diameter of the silica powder is 50 μm or less in terms of D50;
the mass ratio of the tourmaline to the silicon dioxide is (0.5-5) to (1-2);
the dosage of the surfactant is 0.5-2%, and the percentage is the percentage of the mass of the surfactant in the total mass of the tourmaline mixture.
In the present invention, the solid content of the tourmaline is preferably 0.5% to 3%, more preferably 1% to 3%, for example, 1%, 1.5%, 2%, or 2.5%.
In the present invention, the solid content of the silica is preferably 0.5% to 3%, more preferably 1% to 3%, such as 1%, 1.5%, 2%, or 2.5%.
In the present invention, the particle size of the tourmaline powder is preferably 0.1 to 30 μm, more preferably 0.1 to 10 μm, in terms of D50.
In the present invention, the particle diameter of the silica is preferably 10 to 50 μm, more preferably 10 to 30 μm in terms of D50.
In the present invention, the dosage of the tourmaline and the silica is preferably 0.5 to 3, more preferably 1 to 2, for example, 1.
In the present invention, the surfactant may be a surfactant conventional in the art, such as cetyltrimethylammonium bromide or gamma-methacryloxypropyltrimethoxysilane.
In the present invention, the amount of the surfactant is preferably 0.5% to 1.5%, for example, 1%, where the percentage is the percentage of the mass of the surfactant to the total mass of the tourmaline mixture.
In the present invention, the tourmaline mixture generally further comprises a solvent.
The solvent may be a solvent conventional in the art, and preferably is one or more of deionized water, acetone and absolute ethyl alcohol, for example, a mixed solution of deionized water and absolute ethyl alcohol or a mixed solution of deionized water and acetone.
When the solvent is a mixed solution of deionized water and absolute ethanol, the mixing ratio of the deionized water to the absolute ethanol may be 4.
When the solvent is a mixed solution of deionized water and acetone, the mixing ratio of the deionized water to the acetone may be 4.
The invention also provides a preparation method of the tourmaline mixture, which comprises the following steps:
carrying out ultrasonic treatment on a mixed solution containing the silicon dioxide, the tourmaline, a solvent and the surfactant;
wherein the solvent is as previously described; the time of the ultrasound may be 10min to 30min, for example 10min, 15min or 25min.
In the present invention, the specific manner and conditions of the ultrasound may be those conventional in the art.
The invention also provides a tourmaline mixed coating which comprises the tourmaline mixture.
In the invention, the tourmaline mixed coating has a rough surface. The rough surface is a microstructure observable by a scanning electron microscope.
In the present invention, the thickness of the tourmaline mixed coating layer may be a thickness conventional in the art.
The invention also provides a preparation method of the tourmaline mixed coating, which comprises the following steps: spraying and drying the tourmaline mixture.
In the present invention, the spray area of the spray may be conventional in the art, e.g., 150cm 2 。
In the present invention, the specific manner and conditions of the spraying can be conventional in the art, for example, the tourmaline mixed coating as described above can be sprayed on the glass sheet by using a blue light atomizing gun with model number YZ-K5.
In the invention, the drying temperature can be 60-100 ℃, preferably 60-80 ℃.
In the invention, the drying time can be 5-10 min, preferably 8-10 min.
In the present invention, the drying equipment may be conventional in the art, and is preferably performed by using an oven.
The invention also provides the tourmaline mixed coating prepared by the preparation method of the tourmaline mixed coating.
The invention also provides application of the tourmaline mixture or the tourmaline mixed coating as a functional composite material for resisting bacteria and releasing air anions.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The reagents and starting materials used in the present invention are commercially available.
The positive progress effects of the invention are as follows:
(1) The tourmaline mixed coating prepared by the invention has a rough surface and high air negative ion release concentration.
(2) The preparation method is simple and easy to operate, low in cost and environment-friendly.
Drawings
Fig. 1 is a scanning electron microscope image of the tourmaline mixed coating prepared in example 1 of the present invention magnified 1000 times.
Fig. 2 is a scanning electron microscope image of the tourmaline mixed coating prepared in example 2 of the present invention magnified 1000 times.
FIG. 3 is a scanning electron microscope image of the tourmaline mixed coating prepared in example 3 of the present invention magnified 1000 times.
FIG. 4 is a scanning electron microscope image at 1000 times magnification of the tourmaline-containing hybrid coating prepared in example 4 of the present invention.
FIG. 5 is a scanning electron microscope image of the tourmaline mixed coating prepared in example 5 of the present invention magnified 1000 times.
FIG. 6 is a scanning electron microscope image of the tourmaline mixed coating prepared in example 6 of the present invention magnified 1000 times.
FIG. 7 is a scanning electron microscope image of the tourmaline mixed coating prepared in comparative example 1 of the present invention magnified 1000 times.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention. Experimental procedures without specifying specific conditions in the following examples were selected in accordance with conventional procedures and conditions, or in accordance with commercial instructions.
Tourmaline powder and silica powder used in the following examples and comparative examples were commercially available.
Example 1
Step 1. Preparation of tourmaline mixture
Adding tourmaline powder, silicon dioxide powder and surfactant (CTAB: cetyl trimethyl ammonium bromide) into a mixed solvent (volume ratio of water to absolute ethyl alcohol is 4: 1), and performing ultrasonic treatment for 10 min;
wherein the particle diameter D50 of the tourmaline powder is 10-20 μm, and the solid content is 1%; the particle diameter D50 of the silicon dioxide powder is 20-30 μm, and the solid content is 2%; the mass ratio of the tourmaline powder to the silicon dioxide powder is 1; the mass of the surfactant accounts for 1 percent of the total mass of the tourmaline mixture.
Step 2, preparing the tourmaline mixed coating
And (3) spraying the tourmaline mixture prepared in the step (1) on a glass plate, and drying in an oven.
Wherein the spray coating adopts a YZ-K5 blue light atomizing gun, and the spray coating area is 150cm 2 (containing tourmaline mixture 0.05 g), drying temperature is 70 deg.C, and drying time is 9min.
Example 2
Step 1. Preparation of tourmaline mixture
Adding tourmaline powder, silicon dioxide powder and surfactant (CTAB: cetyl trimethyl ammonium bromide) into a mixed solvent (volume ratio of water to absolute ethyl alcohol is 4: 1), and performing ultrasonic treatment for 10 min;
wherein the particle diameter D50 of the tourmaline powder is 0.1-10 μm, and the solid content is 1%; the particle diameter D50 of the silicon dioxide powder is 10-20 mu m, and the solid content is 1%; the mass ratio of the tourmaline powder to the silicon dioxide powder is 1; the mass of the surfactant accounts for 1% of the total mass of the tourmaline mixture.
Step 2, preparing the tourmaline mixed coating
And (3) spraying the tourmaline mixture prepared in the step (1) on a glass plate, and drying in an oven.
Wherein the spray coating adopts a YZ-K5 blue light atomizing gun, and the spray coating area is 150cm 2 (containing tourmaline mixture 0.05 g), drying temperature is 70 deg.C, and drying time is 9min.
Example 3
Step 1. Preparation of tourmaline mixture
Adding tourmaline powder, silicon dioxide powder and surfactant (CTAB: cetyl trimethyl ammonium bromide) into a mixed solvent (volume ratio of water to absolute ethyl alcohol is 4: 1), and performing ultrasonic treatment for 10 min;
wherein the particle diameter D50 of the tourmaline powder is 10-20 μm, and the solid content is 2%; the particle diameter D50 of the silicon dioxide powder is 20-30 mu m, and the solid content is 1%; the mass ratio of the tourmaline powder to the silicon dioxide powder is 3; the mass of the surfactant accounts for 1% of the total mass of the tourmaline mixture.
Step 2, preparing the tourmaline mixed coating
And (3) spraying the tourmaline mixture prepared in the step (1) on a glass plate, and drying in an oven.
Wherein the spray coating adopts a YZ-K5 blue light atomizing gun, and the spray coating area is 150cm 2 (containing tourmaline mixture 0.05 g), drying temperature is 70 deg.C, and drying time is 9min.
Example 4
Step 1. Preparation of tourmaline mixture
Adding tourmaline powder, silicon dioxide powder and surfactant (CTAB: cetyl trimethyl ammonium bromide) into a mixed solvent (volume ratio of water to absolute ethyl alcohol is 4: 1), and performing ultrasonic treatment for 10 min;
wherein the particle diameter D50 of the tourmaline powder is 10-20 μm, and the solid content is 2%; the particle diameter D50 of the silicon dioxide powder is 20-30 μm, and the solid content is 4%; the mass ratio of the tourmaline powder to the silicon dioxide powder is 1; the mass of the surfactant accounts for 2% of the total mass of the tourmaline mixture.
Step 2, preparing the tourmaline mixed coating
And (3) spraying the tourmaline mixture prepared in the step (1) on a glass plate, and drying in an oven.
Wherein the spray coating adopts a YZ-K5 blue light atomizing gun, and the spray coating area is 150cm 2 (containing tourmaline mixture 0.05 g), drying temperature is 70 deg.C, and drying time is 9min.
Example 5
Step 1. Preparation of tourmaline mixture
Adding tourmaline powder, silicon dioxide powder and surfactant (CTAB: cetyl trimethyl ammonium bromide) into a mixed solvent (the volume ratio of water to absolute ethyl alcohol is 4;
wherein the particle diameter D50 of the tourmaline powder is 0.1-10 μm, and the solid content is 2%; the particle diameter D50 of the silicon dioxide powder is 10-20 mu m, and the solid content is 1%; the mass ratio of the tourmaline powder to the silicon dioxide powder is 2; the mass of the surfactant accounts for 1% of the total mass of the tourmaline mixture.
Step 2, preparing the tourmaline mixed coating
And (3) spraying the tourmaline mixture prepared in the step (1) on a glass plate, and drying in an oven.
Wherein the spray coating adopts a YZ-K5 blue light atomizing gun, and the spray coating area is 150cm 2 (containing tourmaline mixture 0.05 g), drying temperature is 70 deg.C, and drying time is 9min.
Example 6
Step 1. Preparation of tourmaline mixture
Adding tourmaline powder, silicon dioxide powder and surfactant (KH-570: gamma-methacryloxypropyltrimethoxysilane) into a mixed solvent (the volume ratio of water to acetone is 4: 1), and performing ultrasonic treatment for 25 min;
wherein the particle diameter D50 of the tourmaline powder is 10-20 μm, and the solid content is 1%; the particle diameter D50 of the silicon dioxide powder is 20-30 μm, and the solid content is 2%; the mass ratio of the tourmaline powder to the silicon dioxide powder is 1; the mass of the surfactant accounts for 1.5% of the total mass of the tourmaline mixture.
Step 2, preparing the tourmaline mixed coating
And (3) spraying the tourmaline mixture prepared in the step (1) on a glass plate, and drying in an oven.
Wherein the spray coating adopts a YZ-K5 blue light atomizing gun, and the spray coating area is 150cm 2 (containing tourmaline mixture 0.05 g), drying temperature is 70 deg.C, and drying time is 9min.
Comparative example 1
Step 1. Preparation of tourmaline mixture
Adding tourmaline powder and surfactant (CTAB: cetyl trimethyl ammonium bromide) into a mixed solvent (the volume ratio of water to absolute ethyl alcohol is 4;
wherein the particle diameter D50 of the tourmaline powder is 10-20 μm, and the solid content is 1%; the mass of the surfactant accounts for 1% of the total mass of the tourmaline mixture.
Step 2, preparing the tourmaline mixed coating
And (3) spraying the tourmaline mixture prepared in the step (1) on a glass plate, and drying in an oven.
Wherein the spray coating adopts a YZ-K5 blue light atomizing gun, and the spray coating area is 150cm 2 (containing tourmaline mixture 0.05 g), drying temperature is 70 deg.C, and drying time is 9min.
Effect example 1 scanning Electron microscope test
Test objects: tourmaline mixed coatings prepared in examples 1 to 6 and comparative example 1.
Testing an instrument: scanning electron microscope: model S3400-N, test voltage 20kV.
And (3) testing results: FIGS. 1 to 6 are scanning electron micrographs of the tourmaline mixed coatings prepared in examples 1 to 6; figure 7 scanning electron microscopy images of the tourmaline-hybrid coating prepared in comparative example 1.
As can be seen from fig. 1 to 6, the tourmaline mixed coating surfaces produced in examples 1 to 6 of the present invention had a rougher surface to the silica particles than the tourmaline mixed coating products produced in comparative example 1 of fig. 7.
Effect example 2 air anion releasing concentration test
Test object(s): tourmaline-containing mixed coatings obtained in examples 1 to 6 and comparative example 1
Testing the instrument: negative ion detector with type AIC-2000
The test method comprises the following steps: the tourmaline mixed coatings prepared in examples 1 to 6 and comparative example 1 were placed in a glass cabinet of 60cm × 90cm × 120cm, and then tested.
And (3) testing results: the effect data of the tourmaline mixed coating prepared in examples 1 to 6 and comparative example 1 on the change of the concentration of the released negative ions with time within 8h are shown in the following tables 1 to 7.
As can be seen from the data in tables 1 to 7, the concentration of negative ions released in 8 hours of the tourmaline mixed coatings prepared in the embodiments 1 to 6 of the invention can reach 950 to 1250/cm 3 While the concentration of negative ions released in 8h of the tourmaline mixed coating prepared in the comparative example 1 is only 650/cm 3 The tourmaline mixed coating prepared by the invention can release high-concentration air negative ions.
TABLE 1 table showing the time-dependent change of the concentration of anions released from the tourmaline mixed coating prepared in example 1
| Time/(h) | 0 | 2 | 4 | 6 | 8 |
| Concentration of negative ions/(piece/cm) 3 ) | 350 | 750 | 850 | 950 | 950 |
Table 2, table of the change of the concentration of the negative ions released by the tourmaline mixed coating prepared in example 2 with time
| Time/(h) | 0 | 2 | 4 | 6 | 8 |
| Concentration of negative ions/(piece/cm) 3 ) | 350 | 800 | 1250 | 1250 | 1250 |
Table 3, table of the change of the concentration of the negative ions released by the tourmaline mixed coating prepared in example 3 with time
| Time/(h) | 0 | 2 | 4 | 6 | 8 |
| Concentration of negative ions/(piece/cm) 3 ) | 350 | 700 | 800 | 1000 | 1050 |
Table 4, table showing the change of the concentration of the negative ions released by the tourmaline mixed coating prepared in example 4 with time
| Time/(h) | 0 | 2 | 4 | 6 | 8 |
| Concentration of negative ions/(piece/cm) 3 ) | 350 | 700 | 850 | 950 | 1000 |
Table 5, table showing the change of the concentration of the negative ions released by the tourmaline mixed coating prepared in example 5 with time
| Time/(h) | 0 | 2 | 4 | 6 | 8 |
| Concentration of negative ions/(piece/cm) 3 ) | 350 | 850 | 950 | 1150 | 1200 |
Table 6, table showing the change of the concentration of the negative ions released by the tourmaline mixed coating prepared in example 6 with time
| Time/(h) | 0 | 2 | 4 | 6 | 8 |
| Concentration of negative ions/(piece/cm) 3 ) | 350 | 750 | 950 | 1000 | 1000 |
Table 7, table showing the change of the concentration of negative ions released by the tourmaline mixed coating prepared in comparative example 1 with time
| Time/(h) | 0 | 2 | 4 | 6 | 8 |
| Concentration of negative ions/(piece/cm) 3 ) | 350 | 550 | 700 | 550 | 650 |
Claims (14)
1. A tourmaline mixture is characterized in that the tourmaline mixture consists of silicon dioxide, tourmaline, a solvent and hexadecyl trimethyl ammonium bromide;
or the composite material consists of silicon dioxide, tourmaline, a solvent and gamma-methacryloxypropyltrimethoxysilane;
in the tourmaline mixture, the solid content of the silicon dioxide is 0.1-5%;
in the tourmaline mixture, the solid content of tourmaline is 0.1% -3%;
the tourmaline is in a powder form, and the particle size of the tourmaline powder is 0.1-30 μm calculated as D50;
the form of the silicon dioxide is powder, and the particle size of the silicon dioxide powder is 10-50 mu m in terms of D50;
the mass ratio of the tourmaline to the silicon dioxide is (0.5 to 5) to (1 to 2);
the dosage of the hexadecyl trimethyl ammonium bromide is 0.5-2%, and the percentage is that the mass of the hexadecyl trimethyl ammonium bromide accounts for the total mass of the tourmaline mixture;
the dosage of the gamma-methacryloxypropyltrimethoxysilane is 0.5-2%, and the percentage is that the mass of the gamma-methacryloxypropyltrimethoxysilane accounts for the total mass of the tourmaline mixture;
the solvent is a mixed solution of deionized water and absolute ethyl alcohol or a mixed solution of deionized water and acetone.
2. The tourmaline mixture of claim 1, wherein the solid content of the tourmaline in the tourmaline mixture is 0.5% to 3%;
and/or the solid content of the silicon dioxide in the tourmaline mixture is 0.5-3%;
and/or the particle size of the tourmaline powder is 0.1-10 μm calculated by D50;
and/or the particle size of the silicon dioxide powder is 10-30 μm calculated as D50;
and/or the mass ratio of the tourmaline to the silicon dioxide is 0.5 to 3.
3. The tourmaline mixture of claim 2, wherein the solid content of the tourmaline in the tourmaline mixture is 1% -3%;
and/or in the tourmaline mixture, the solid content of the silicon dioxide is 1% -3%;
and/or the mass ratio of the tourmaline to the silicon dioxide is 1 to 2.
4. The tourmaline mixture of claim 3, wherein the solid content of the tourmaline in the tourmaline mixture is 1%, 1.5%, 2% or 2.5%;
and/or, in the tourmaline mixture, the solid content of the silicon dioxide is 1%, 1.5%, 2% or 2.5%;
and/or the mass ratio of the tourmaline to the silicon dioxide is 1.
5. The tourmaline mixture according to claim 1, wherein the amount of cetyltrimethylammonium bromide is 0.5% to 1.5%, and the percentage is the mass of cetyltrimethylammonium bromide to the total mass of the tourmaline mixture;
the dosage of the gamma-methacryloxypropyltrimethoxysilane is 0.5-1.5%, and the percentage is that the mass of the gamma-methacryloxypropyltrimethoxysilane accounts for the total mass of the tourmaline mixture.
6. The tourmaline mixture of claim 1, wherein the amount of cetyl trimethyl ammonium bromide used is 1%, wherein the percentage is the mass of the cetyl trimethyl ammonium bromide to the total mass of the tourmaline mixture;
the dosage of the gamma-methacryloxypropyltrimethoxysilane is 1 percent, and the percentage is the percentage of the mass of the gamma-methacryloxypropyltrimethoxysilane to the total mass of the tourmaline mixture.
7. A method for preparing the tourmaline mixture according to any one of claims 1 to 6, comprising the steps of: carrying out ultrasonic treatment on a mixed solution containing the silicon dioxide, the tourmaline, the solvent and the hexadecyl trimethyl ammonium bromide;
or, the steps include: carrying out ultrasonic treatment on a mixed solution containing the silicon dioxide, the tourmaline, the solvent and the gamma-methacryloxypropyltrimethoxysilane;
the time of the ultrasonic treatment is 10min to 30min.
8. The method for preparing a tourmaline mixture according to claim 7, wherein the time of the ultrasound is 10min, 15min or 25min.
9. A tourmaline hybrid coating characterized in that it comprises the tourmaline mixture according to any one of claims 1 to 6.
10. A method for preparing a tourmaline mixed coating is characterized by comprising the following steps: spraying and drying the tourmaline mixture as defined in any one of claims 1 to 6.
11. The method for preparing the tourmaline mixed coating of claim 10, wherein the drying temperature is 60-100 ℃;
and/or the drying time is 5 to 10min.
12. The method for preparing the tourmaline mixed coating according to claim 11, wherein the drying temperature is 60-80 ℃;
and/or the drying time is 8-10min.
13. A tourmaline-hybrid coating produced by the method for producing a tourmaline-hybrid coating according to any one of claims 10 to 12.
14. Use of the tourmaline mixture according to any one of claims 1 to 6 or the tourmaline mixture coating according to claim 9 or 13 as a functional composite material for resisting bacteria and releasing negative air ions.
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| CN103360657A (en) * | 2012-03-31 | 2013-10-23 | 中国科学院合肥物质科学研究院 | Composite material with negative ion releasing function and preparation method thereof |
| CN103586948A (en) * | 2013-10-25 | 2014-02-19 | 郴州四方立投资有限公司 | Anion air purification slurry for wood modification and preparation method thereof |
| CN104174256B (en) * | 2014-08-19 | 2016-03-02 | 西安交通大学 | A kind of combination solution purified air and uses thereof |
| CN108609999A (en) * | 2018-05-10 | 2018-10-02 | 上海慕甲新材料科技有限公司 | A kind of tourmaline slurry of stabilization and preparation method thereof |
| CN111607282A (en) * | 2020-06-29 | 2020-09-01 | 上海心球蓝环保科技有限公司 | Preparation method and application of novel negative oxygen ion material |
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