CN115232497A - Preparation method of carbon quantum dot glass coating - Google Patents
Preparation method of carbon quantum dot glass coating Download PDFInfo
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- CN115232497A CN115232497A CN202210886887.3A CN202210886887A CN115232497A CN 115232497 A CN115232497 A CN 115232497A CN 202210886887 A CN202210886887 A CN 202210886887A CN 115232497 A CN115232497 A CN 115232497A
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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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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/30—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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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
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
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Abstract
The invention discloses a preparation method of a carbon quantum dot glass coating, belonging to the field of carbon quantum dot composite materials; the preparation method of the carbon quantum dot glass coating comprises the following steps: uniformly mixing citric acid, deionized water and urea/ethylenediamine, heating in a water bath, and dispersing to prepare a carbon quantum dot solution; then mixing the carbon quantum dot solution with ethyl orthosilicate according to a proportion, and adding a reaction promoter (acetylacetone or ethyl cellulose) to prepare a carbon quantum dot-ethyl orthosilicate mixed solution, namely a glass coating; the carbon quantum dot-ethyl orthosilicate mixed solution is uniformly dispersed on the glass panel, and the glass panel which is free of pores, heat-resistant and stable is finally obtained.
Description
Technical Field
The invention belongs to the field of carbon quantum dot composite materials, and particularly relates to a preparation method of a carbon quantum dot glass coating.
Background
As a quasi-zero-dimensional carbon nano material, the carbon quantum dot has the advantages of excellent optical property, good water solubility, low toxicity, environmental friendliness, wide raw material source, low cost, good biocompatibility and the like. One of the outstanding characteristics of carbon quantum dots, namely the discovery and application of the carbon quantum dots, is that the carbon quantum dots have photoluminescence characteristics, in a popular way, the carbon quantum dots with good water solubility can emit bright fluorescence under illumination, and the optical stability of the carbon quantum dots is good. The glass panel in the prior art has the problems of insufficient mechanical strength and poor heat resistance, and the service life of the glass is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a preparation method of a carbon quantum dot glass coating, and the prepared carbon quantum dot glass coating can enable a glass panel to have better mechanical strength and heat resistance.
The purpose of the invention can be realized by the following technical scheme:
a preparation method of a carbon quantum dot glass coating comprises the following steps:
s1, mixing citric acid and urea/ethylenediamine in deionized water (the molar ratio is 2;
s2, heating the solution in a water bath;
s3, dispersing the solution subjected to the hydrothermal treatment in a magnetic stirrer, cooling and storing the mixed solution;
and S4, mixing the tetraethoxysilane solution with the mixed solution in the S3 according to the ratio of 1: and (1-2) uniformly mixing, adjusting the PH value to be alkaline, and simultaneously reacting with a promoter.
Further, in S2, the aqueous solution was subjected to hydrothermal treatment at 180 ℃ for 10 hours in a hydrothermal reactor.
Further, in said S3, the solution was dispersed in a magnetic stirrer at 40 ℃ for 24h.
Further, both S1 and S4 are ultrasonically mixed.
Further, in S4, the pH is adjusted to be alkaline by adding ammonia water.
Further, the ammonia water is added into the solution in a dropwise manner.
Further, the reaction promoter is acetylacetone or ethyl cellulose.
The carbon quantum dot glass coating is prepared by the method.
A glass panel coated with the above paint.
The invention has the beneficial effects that:
1. the glass compounded by the carbon quantum dot glass coating has better mechanical strength, heat resistance and sealing property than common glass.
2. The carbon quantum dots are non-toxic and harmless, and are better in environmental protection.
3. The method of mixing tetraethoxysilane is adopted, and the hydrolysis reaction mechanism of tetraethoxysilane under the alkaline condition is directly utilized to prepare a film which is more tightly combined and compounded on the surface of the glass.
4. The invention adopts a hydrothermal method to prepare carbon quantum dots, and then adopts an ultrasonic mixing method to mix with an ethyl orthosilicate solution; compared with the coating reported on the market, the coating has the characteristics of simple process, good dispersibility, environmental protection and convenient operation, and the final product is obtained by directly compounding the solution by using the hydrolysis reaction;
5. the prepared carbon quantum dot glass coating can be used for promoting building integration photovoltaic (BI PV) and promoting the application of doped carbon quantum dots in the field of semiconductor industry.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is an SEM image of carbon quantum dots of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
a preparation method of a carbon quantum dot glass coating comprises the following steps:
s1, taking 5g of citric acid and 0.7816g of urea, adding deionized water to prepare a 100mL mixed solution by taking the citric acid as a carbon source and the urea as a nitrogen source, and uniformly dispersing in ultrasound;
s2, adding the mixed solution into a hydrothermal kettle, and carrying out hydrothermal treatment for 10 hours at 180 ℃;
s3, dispersing the solution subjected to hydrothermal treatment in a magnetic stirrer at 40 ℃ for 24 hours, cooling and storing the mixed solution;
s4, taking a proper amount of tetraethoxysilane solution and the mixed solution according to the proportion of 1:1, adding ammonia water to adjust the pH value to be alkaline, and simultaneously adding a reaction promoter (a proper amount of acetylacetone or ethyl cellulose) to obtain the carbon quantum dot glass coating.
It should be noted that ammonia is added slowly in a dropwise manner to prevent precipitation.
Example 2:
s1, taking 5g of citric acid and 0.7816g of urea, adding deionized water to prepare 100mL of mixed solution by taking the citric acid as a carbon source and the urea as a nitrogen source, and uniformly dispersing in ultrasound;
s2, adding the mixed solution into a hydrothermal kettle, and carrying out hydrothermal treatment for 10 hours at 180 ℃;
s3, placing the solution subjected to hydrothermal treatment in a magnetic stirrer for dispersing for 24 hours at 40 ℃, cooling and storing the mixed solution;
s4, taking a proper amount of tetraethoxysilane solution and the mixed solution according to the proportion of 1:2, adding ammonia water to adjust the pH value to be alkaline, and simultaneously adding a reaction promoter (a proper amount of acetylacetone or ethyl cellulose) to obtain the carbon quantum dot glass coating.
Example 3:
s1, taking 5g of citric acid and 0.7821g of ethylenediamine, taking the citric acid as a carbon source and the ethylenediamine as a nitrogen source, adding deionized water to prepare 100mL of mixed solution, and uniformly dispersing in ultrasound;
s2, adding the mixed solution into a hydrothermal kettle, and carrying out hydrothermal treatment for 10 hours at 180 ℃;
s3, dispersing the solution subjected to hydrothermal treatment in a magnetic stirrer at 40 ℃ for 24 hours, cooling and storing the mixed solution;
s4, taking a proper amount of ethyl orthosilicate solution and the mixed solution according to the ratio of 1:1, adding ammonia water to adjust the pH value to be alkaline, and simultaneously adding a reaction promoter (a proper amount of acetylacetone or ethyl cellulose) to obtain the carbon quantum dot glass coating.
Example 4:
1) 5g of citric acid and 0.7821g of ethylenediamine are taken, citric acid is taken as a carbon source, ethylenediamine is taken as a nitrogen source, deionized water is added to prepare 100mL of mixed solution, and the mixed solution is uniformly dispersed in ultrasound.
2) And adding the mixed solution into a hydrothermal kettle, and carrying out hydrothermal treatment for 10h at 180 ℃.
3) Dispersing the hydrothermal treated solution in a magnetic stirrer at 40 deg.C for 24 hr, cooling, and storing the mixed solution.
4) Taking a proper amount of ethyl orthosilicate solution and the mixed solution according to the ratio of 1:2, adding ammonia water to adjust the pH value to be alkaline, and simultaneously adding a reaction promoter (a proper amount of acetylacetone or ethyl cellulose) to obtain the carbon quantum dot glass coating.
According to the invention, the prepared carbon quantum dots are mixed with tetraethyl orthosilicate (TEOS) solution, and by means of hydrolysis reaction of the TEOS under alkaline condition, a hydrolysate of a three-dimensional network gel substance mainly containing a silica structure is generated after hydrolysis, and the TEOS has no self-hardening bonding effect, but the hydrolysate after hydrolysis under acid-base condition has hardness bonding effect; TEOS alkaline hydrolysis depends on a high-concentration OH-ion solvent, is a first-order reaction, the hydrolysis-polymerization reaction is relatively slow, a hydrolysis product is unstable, gel is generated immediately, and ammonia water can be used for adjusting the pH value to enable the solution to be in an alkaline condition but not to be excessive, otherwise, precipitate is generated; in the alkali catalysis, additives such as acetylacetone or ethyl cellulose are beneficial to the formation of gel, and the high-temperature resistant coating prepared by TEOS is an inorganic film after thermal curing.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (9)
1. The preparation method of the carbon quantum dot glass coating is characterized by comprising the following steps:
s1, mixing citric acid and urea/ethylenediamine in deionized water (the molar ratio is 2;
s2, heating the solution in a water bath;
s3, dispersing the solution subjected to the hydrothermal treatment in a magnetic stirrer, cooling and storing the mixed solution;
and S4, mixing the tetraethoxysilane solution with the mixed solution in the S3 according to the ratio of 1: and (1-2) uniformly mixing the components in a mass ratio, adjusting the pH value to be alkaline, and simultaneously reacting the accelerator.
2. The method for preparing a carbon quantum dot glass coating according to claim 1, wherein in the step S2, the aqueous solution is subjected to hydrothermal treatment at 180 ℃ for 10 hours in a hydrothermal kettle.
3. The method for preparing the carbon quantum dot glass coating according to claim 1, wherein in the S3, the solution is dispersed for 24 hours at 40 ℃ in a magnetic stirrer.
4. The method for preparing the carbon quantum dot glass coating according to claim 1, wherein both S1 and S4 are ultrasonically mixed.
5. The method for preparing the carbon quantum dot glass coating according to claim 1, wherein in the step S4, the pH value is adjusted to be alkaline by adding ammonia water.
6. The method for preparing the carbon quantum dot glass coating according to claim 5, wherein the ammonia water is added into the solution in a dropwise manner.
7. The method for preparing the carbon quantum dot glass coating according to claim 1, wherein the reaction promoter is acetylacetone or ethyl cellulose.
8. A carbon quantum dot glass coating prepared using the method of any one of claims 1 to 7.
9. A glass panel coated with the coating of claim 8.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115849382A (en) * | 2022-12-26 | 2023-03-28 | 山东理工昊明新能源有限公司 | Silicon material for photovoltaic power generation and preparation method thereof |
| CN116265546A (en) * | 2023-02-10 | 2023-06-20 | 常州威斯双联科技有限公司 | Power battery module failure protection coating and preparation method thereof |
| CN116265546B (en) * | 2023-02-10 | 2024-05-31 | 常州威斯双联科技有限公司 | Power battery module failure protection coating and preparation method thereof |
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| US20180057696A1 (en) * | 2016-10-23 | 2018-03-01 | Sepideh Pourhashem | Anti-corrosion nanocomposite coating |
| WO2018095442A1 (en) * | 2016-11-22 | 2018-05-31 | 华南农业大学 | Quantum dot and use of composite material thereof in preparing ultraviolet resistant products |
| CN109181687A (en) * | 2018-07-26 | 2019-01-11 | 湖南工业大学 | A kind of rear-earth-doped NaYF4The preparation method and application of/carbon quantum dot double mode fluorescence nano composite material |
| CN113321945A (en) * | 2021-06-22 | 2021-08-31 | 华南农业大学 | Preparation method and application of carbon quantum dot regulated aluminum phosphite crystal |
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2022
- 2022-07-26 CN CN202210886887.3A patent/CN115232497B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20180057696A1 (en) * | 2016-10-23 | 2018-03-01 | Sepideh Pourhashem | Anti-corrosion nanocomposite coating |
| WO2018095442A1 (en) * | 2016-11-22 | 2018-05-31 | 华南农业大学 | Quantum dot and use of composite material thereof in preparing ultraviolet resistant products |
| CN109181687A (en) * | 2018-07-26 | 2019-01-11 | 湖南工业大学 | A kind of rear-earth-doped NaYF4The preparation method and application of/carbon quantum dot double mode fluorescence nano composite material |
| CN113321945A (en) * | 2021-06-22 | 2021-08-31 | 华南农业大学 | Preparation method and application of carbon quantum dot regulated aluminum phosphite crystal |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849382A (en) * | 2022-12-26 | 2023-03-28 | 山东理工昊明新能源有限公司 | Silicon material for photovoltaic power generation and preparation method thereof |
| CN115849382B (en) * | 2022-12-26 | 2023-07-21 | 山东理工职业学院 | Silicon material for photovoltaic power generation and preparation method thereof |
| CN116265546A (en) * | 2023-02-10 | 2023-06-20 | 常州威斯双联科技有限公司 | Power battery module failure protection coating and preparation method thereof |
| CN116265546B (en) * | 2023-02-10 | 2024-05-31 | 常州威斯双联科技有限公司 | Power battery module failure protection coating and preparation method thereof |
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