CN115368025B - Anti-pollution self-cleaning glass substrate and preparation method thereof - Google Patents
Anti-pollution self-cleaning glass substrate and preparation method thereof Download PDFInfo
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- CN115368025B CN115368025B CN202210693223.5A CN202210693223A CN115368025B CN 115368025 B CN115368025 B CN 115368025B CN 202210693223 A CN202210693223 A CN 202210693223A CN 115368025 B CN115368025 B CN 115368025B
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- 239000000758 substrate Substances 0.000 title claims abstract description 57
- 239000005348 self-cleaning glass Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000011521 glass Substances 0.000 claims abstract description 40
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 238000000576 coating method Methods 0.000 claims abstract description 26
- 239000002131 composite material Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000003373 anti-fouling effect Effects 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 20
- 229910000077 silane Inorganic materials 0.000 claims description 20
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 17
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 15
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical group CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 claims description 15
- YGUFXEJWPRRAEK-UHFFFAOYSA-N dodecyl(triethoxy)silane Chemical compound CCCCCCCCCCCC[Si](OCC)(OCC)OCC YGUFXEJWPRRAEK-UHFFFAOYSA-N 0.000 claims description 13
- 230000002378 acidificating effect Effects 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 11
- 150000003608 titanium Chemical class 0.000 claims description 11
- 239000005341 toughened glass Substances 0.000 claims description 11
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 150000007524 organic acids Chemical class 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 8
- 231100000719 pollutant Toxicity 0.000 abstract description 8
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 4
- 239000012459 cleaning agent Substances 0.000 abstract description 2
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 22
- 238000004140 cleaning Methods 0.000 description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 10
- 238000003756 stirring Methods 0.000 description 8
- 238000003760 magnetic stirring Methods 0.000 description 7
- 230000032683 aging Effects 0.000 description 6
- 239000011259 mixed solution Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000011056 performance test Methods 0.000 description 5
- 229960000583 acetic acid Drugs 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000003669 anti-smudge Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012362 glacial acetic acid Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000004627 transmission electron microscopy Methods 0.000 description 1
- NBXZNTLFQLUFES-UHFFFAOYSA-N triethoxy(propyl)silane Chemical compound CCC[Si](OCC)(OCC)OCC NBXZNTLFQLUFES-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- 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
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
- C03C17/008—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character comprising a mixture of materials covered by two or more of the groups C03C17/02, C03C17/06, C03C17/22 and C03C17/28
- C03C17/009—Mixtures of organic and inorganic materials, e.g. ormosils and ormocers
-
- 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
-
- 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
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/78—Coatings specially designed to be durable, e.g. scratch-resistant
-
- 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
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/112—Deposition methods from solutions or suspensions by spraying
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention relates to G02B1, in particular to an anti-pollution self-cleaning glass substrate and a preparation method thereof. The anti-fouling self-cleaning glass substrate comprises a composite coating and a glass substrate. The anti-pollution self-cleaning glass substrate provided by the invention can decompose organic pollutants such as oil stains attached to the surface, so that the adhesive force between the pollutants and the substrate is weakened, the pollutants are easily blown off by wind or carried away by rainwater, water easily enters a gap between the pollutants and the substrate, the pollutants are easily washed away by the water, a cleaning agent is not needed, the glass substrate can be effectively cleaned, the impact on the environment is reduced, and in addition, the composite coating enables the glass substrate to have lower surface resistance, and the electrostatic adsorption quantity of dust generated by the environment can be obviously reduced.
Description
Technical Field
The invention relates to G02B1, in particular to an anti-pollution self-cleaning glass substrate and a preparation method thereof.
Background
The glass is cleaned regularly, so that the maintenance cost of the glass is increased, and the time and the labor are consumed. With the progress of social science and technology, people gradually start to use self-cleaning technology to replace the traditional cleaning method.
The patent No. CN110240816B provides a transparent self-cleaning anti-dust deposition coating material and a preparation method thereof, wherein titanium oxide sol and zinc oxide sol are compounded, and the obtained mixed sol is sprayed on the surface of a glass sheet and calcined at high temperature, so that the glass has anti-dust deposition performance. The patent No. CN110250169B provides a silver-loaded nano titanium dioxide sol, a preparation method thereof and a preparation method thereof, and the irradiation intensity during photocatalysis is controlled, so that silver is dispersed in the sol more uniformly and has smaller particle size.
Therefore, in order to obtain self-cleaning glass, most of people spray the spray paint on the glass and then carry out high-temperature treatment on the glass, the process is more complicated, the spray paint cannot be directly used in daily life, most of researches are based on common glass substrates, and few reports on toughened glass with higher internal stress are made.
Disclosure of Invention
In order to solve the problems, the first aspect of the invention provides a pollution-resistant self-cleaning glass substrate, which comprises a composite coating and a glass substrate.
As a preferable technical scheme of the invention, the raw materials of the composite coating comprise a solution A and a solution B.
As a preferable technical scheme of the invention, the raw materials of the solution A comprise organic titanium salt and absolute ethyl alcohol, and the weight ratio of the organic titanium salt to the absolute ethyl alcohol in the solution A is (5.3-7.2): (14.6-15.9).
Preferably, the organic titanium salt is n-butyl titanate.
Preferably, the preparation method of the solution A comprises the following steps: absolute ethyl alcohol is added into a beaker, magnetic stirring is started, organic titanium salt is added into the beaker, and the magnetic stirring is kept for 20min.
As a preferable technical scheme of the invention, the raw materials of the solution B comprise organic acid, absolute ethyl alcohol and deionized water, and the weight ratio of the organic acid to the absolute ethyl alcohol to the deionized water in the solution B is (3.8-4.4): (14.6-15.9): (1.3-2.7).
Preferably, the organic acid is glacial acetic acid.
Preferably, the preparation method of the liquid B comprises the following steps: mixing absolute ethyl alcohol and deionized water, adding acetic acid into the mixed solution, and magnetically stirring for 15-25min.
As a preferable technical scheme of the invention, the weight ratio of the liquid A to the liquid B is (0.8-1.2): 1.
As a preferable technical scheme of the invention, the raw materials of the composite coating also comprise silica sol.
As a preferable technical scheme of the invention, the silica sol is prepared by silane modification.
As a preferred embodiment of the present invention, the silane is selected from one or more of methyltriethoxysilane, propyltriethoxysilane, tetraethoxysilane, N-octyltriethoxysilane, dodecyltriethoxysilane.
Preferably, the silanes are methyltriethoxysilane and dodecyltriethoxysilane.
Further preferably, the weight ratio of methyltriethoxysilane to dodecyltriethoxysilane in the silane is 1: (2-4).
In order to improve the stability of the silica sol when the silica sol is used for products, and simultaneously, the obtained composite coating has a quick-drying function, and the applicant can mix the modified silica sol with the titanium sol through a silane coupling agent, and surprisingly, when methyltriethoxysilane and dodecyltriethoxysilane are added, the problems can be improved, the spray coating can be directly used in daily life while maintaining the cleaning performance, the spray coating is used on glass substrates, particularly toughened glass substrates, the later-stage manual cleaning times of glass are greatly reduced, the post-stage maintenance cleaning is not required after the spray coating is sprayed on the toughened glass for 7-10 years, and the adhesive force of the coating is also improved. This is probably due to the fact that the addition of methyltriethoxysilane and dodecyltriethoxysilane of specific chain lengths affects the molecular structure of the resulting sol, and the hydroxyl groups in the original silica sol and the hydroxyl groups hydrolyzed out after modification act synergistically, resulting in a change in steric hindrance, so that the resulting coating has improved film forming properties when sprayed on the surface of a glass substrate. The above-mentioned effects are especially achieved in a weight ratio of methyltriethoxysilane to dodecyltriethoxysilane of 1: (2-4) further excellent.
Preferably, the preparation method of the silica sol is to drip silane into acidic silica, wherein the weight ratio of the acidic silica to the silane is 50: (0.03-0.06), controlling the silane to be dripped out in 7-9min, reacting for 4-5h at 80 ℃, cooling to 25 ℃ to obtain mixed sol, adding toluene for extraction to remove water to obtain silica sol, wherein the volume ratio of the mixed sol to the toluene is 1:2.
Further preferably, the particle size of the acidic silica is less than 30nm.
Preferably, the preparation method of the composite coating comprises the following steps: (1) Dropwise adding the solution B into the solution A under magnetic stirring, continuously stirring for 25min after the dropwise adding is finished, and sealing and aging for 10h to obtain a first mixed solution; (2) the first mixed solution and silica sol were mixed according to (1-1.2): (4.7-5.4), stirring, standing and aging for 12h.
As a preferable technical scheme of the invention, the glass substrate is toughened glass.
The second aspect of the invention provides a preparation method of an anti-pollution self-cleaning glass substrate, which comprises the following steps: spraying the composite coating on the surface of the glass substrate by using a spray gun, wherein the diameter of the spray gun is 0.3-0.5mm, and the spraying distance is 15-20 cm.
Preferably, the spray gun is connected with an air compressor, and the power of the air compressor is 2.4-2.6hp.
Further preferably, the power of the air compressor is 2.5hp.
Compared with the prior art, the invention has the following beneficial effects:
When methyltriethoxysilane and dodecyl triethoxysilane are added, the spray coating can be directly used in daily life while maintaining the cleaning performance, and is used on glass substrates, especially toughened glass substrates, so that the number of post-manual cleaning times of glass is greatly reduced, the post-maintenance cleaning is not required 7-10 years after the spray coating is performed on the toughened glass, and the adhesive force of the coating is improved. The particle size of the acidic silicon dioxide is smaller than 30nm, and the acidic silicon dioxide can well act together with titanium dioxide sol after being modified by silane, so that the film forming effect of the paint after spraying is improved, and the paint is not easy to crack. The anti-pollution self-cleaning glass substrate provided by the invention can decompose organic pollutants such as oil stains attached to the surface, so that the adhesive force between the pollutants and the substrate is weakened, the pollutants are easily blown off by wind or carried away by rainwater, water easily enters a gap between the pollutants and the substrate, the pollutants are easily washed away by the water, a cleaning agent is not needed, the glass substrate can be effectively cleaned, the impact on the environment is reduced, and in addition, the composite coating enables the glass substrate to have lower surface resistance, and the electrostatic adsorption quantity of dust generated by the environment can be obviously reduced.
Drawings
FIG. 1 is an electron microscopic view of the composite coating obtained in example 1;
FIG. 2 is the appearance of example 1 in performance test 4;
FIG. 3 is the appearance of example 5 in performance test 4;
FIG. 4 is the appearance of example 1 in performance test 5;
fig. 5 is an appearance of example 5 in performance test 5.
Detailed Description
Examples
The compositions of the examples were prepared from commercially available materials, wherein the sources of the acidic silica sols of example 1 and example 4 were different, example 1 was purchased from Jinrui, model VK-S01A, particle size 15.+ -. 5nm, example 4 was purchased from Hui and Yongcheng, model SDW-3030, particle size 60-90nm, methyltriethoxysilane was purchased from Jisieka chemical Co., hangzhou, dodecyltriethoxysilane was purchased from Utility, N-octyltriethoxysilane was purchased from Heng, and tempered glass was purchased from Bo glass.
Example 1
The example provides an anti-fouling self-cleaning glass substrate, which comprises a composite coating and a glass substrate.
The raw materials of the composite coating comprise a liquid A and a liquid B.
The raw materials of the solution A comprise organic titanium salt and absolute ethyl alcohol, and in the solution A, the weight ratio of the organic titanium salt to the absolute ethyl alcohol is 5.8:15.2. the organic titanium salt is n-butyl titanate.
The preparation method of the solution A comprises the following steps: absolute ethyl alcohol is added into a beaker, magnetic stirring is started, organic titanium salt is added into the beaker, and the magnetic stirring is kept for 20min.
The raw materials of the solution B comprise organic acid, absolute ethyl alcohol and deionized water, and in the solution B, the weight ratio of the organic acid to the absolute ethyl alcohol to the deionized water is 4:15.2:2.2.
The organic acid is glacial acetic acid.
The preparation method of the solution B comprises the following steps: mixing absolute ethyl alcohol and deionized water, adding acetic acid into the mixed solution, and magnetically stirring for 20min.
The weight ratio of the solution A to the solution B is 0.9:1.
The raw materials of the composite coating also comprise silica sol. The silica sol is prepared by modifying silane.
The silane is methyltriethoxysilane and dodecyltriethoxysilane.
In the silane, the weight ratio of methyltriethoxysilane to dodecyltriethoxysilane is 1:3.
The preparation method of the silica sol is to drip silane into acidic silica, wherein the weight ratio of the acidic silica to the silane is 50:0.04, controlling the silane to be dripped out in 8min, reacting for 4-5h at 80 ℃, cooling to 25 ℃ to obtain mixed sol, adding toluene for extraction to remove water to obtain silica sol, wherein the volume ratio of the mixed sol to the toluene is 1:2.
The preparation method of the composite coating comprises the following steps: (1) Dropwise adding the solution B into the solution A under magnetic stirring, continuously stirring for 25min after the dropwise adding is finished, and sealing and aging for 10h to obtain a first mixed solution; (2) the first mixed liquor and silica sol were mixed according to 1.1:5, mixing, stirring, standing and aging for 12h.
The glass substrate is toughened glass.
The example also provides a preparation method of the anti-fouling self-cleaning glass substrate, which comprises the following steps: spraying the composite coating on the surface of the glass substrate by using a spray gun, wherein the diameter of the spray gun is 0.4mm, and the spraying distance is 15 cm.
The spray gun is connected with an air compressor, and the power of the air compressor is 2.5hp.
Example 2
This example provides an anti-smudge self-cleaning glass substrate, differing from example 1 in that the weight ratio of methyltriethoxysilane to dodecyltriethoxysilane in the silane is 1:3.5.
Example 3
The example provides a self-cleaning glass substrate with anti-fouling effect, which is different from the example 1 in that in the solution A, the weight ratio of organic titanium salt to absolute ethyl alcohol is 6:15.8.
Example 4
The present example provides an anti-fouling self-cleaning glass substrate, which is different from example 1 in that the source of the acidic silica is different, and the preparation method of the composite coating comprises the following steps: (1) Dropwise adding the solution B into the solution A under magnetic stirring, continuously stirring for 25min after the dropwise adding is finished, and sealing and aging for 10h to obtain a first mixed solution; (2) the first mixed liquor and silica sol are mixed according to 1:4.9, mixing, stirring, standing and aging for 12 hours.
Example 5
This example provides an anti-smudge self-cleaning glass substrate, unlike example 1, with the addition of methyltriethoxysilane and N-octyltriethoxysilane. In the silane, the weight ratio of methyltriethoxysilane to N-octyltriethoxysilane is 1:4.1.
Performance test:
1. Morphology testing: the composite coating obtained in example 1 was subjected to Transmission Electron Microscopy (TEM), and as can be seen in fig. 1, the structure was columnar-like.
2. Antistatic test: the antistatic properties (from the cable of the electronic source, model ESD 20K) of the glass substrate and the tempered glass obtained in example 1 were measured using an antistatic tester, and the results showed that the glass substrate obtained in example 1 had a better antistatic effect than the tempered glass.
3. Adhesion test: the adhesion of the composite coating on the glass substrates obtained in examples 1 to 5 was tested according to GB/T9286-1998, and after the test, whether the glass substrate surface was flat and cracks were observed, and the results are shown in Table 1:
TABLE 1
4. Testing the stability of the appearance effect of the glass substrate: after the glass substrates obtained in examples 1 and 5 were left to stand for 12 months, the glass substrates obtained in example 1 were rinsed with water, and the appearance of example 1 was as shown in fig. 2, and the glass substrates obtained in example 5 were as shown in fig. 3, and it was found that the glass substrates obtained in example 1 had remarkable self-cleaning properties.
5. Testing self-cleaning performance of a glass substrate: the glass substrates of example 1 and example 4 were coated with 0.005g of graphite powder and 2mL of water were added, the appearance of example 1 was as shown in FIG. 4, and the glass substrate of example 5 was as shown in FIG. 5, and it was found that the glass substrates obtained in example 1 had remarkable self-cleaning properties.
Claims (4)
1. An anti-fouling self-cleaning glass substrate, which is characterized in that the anti-fouling self-cleaning glass substrate comprises a composite coating and a glass substrate;
The raw materials of the composite coating comprise a solution A and a solution B;
The raw materials of the solution A comprise organic titanium salt and absolute ethyl alcohol, and the weight ratio of the organic titanium salt to the absolute ethyl alcohol in the solution A is (5.3-7.2): (14.6-15.9);
The raw materials of the solution B comprise organic acid, absolute ethyl alcohol and deionized water, and the weight ratio of the organic acid to the absolute ethyl alcohol to the deionized water in the solution B is (3.8-4.4): (14.6-15.9): (1.3-2.7);
The raw materials of the composite coating also comprise silica sol;
The silica sol is prepared by silane modification; the silane is methyltriethoxysilane and dodecyl triethoxysilane, and the weight ratio of the methyltriethoxysilane to the dodecyl triethoxysilane is 1: (2-4);
The preparation method of the silica sol is to drip silane into acidic silica, wherein the weight ratio of the acidic silica to the silane is 50: (0.03-0.06), controlling silane to be dripped out in 7-9min, reacting at 80 ℃ for 4-5h, cooling to 25 ℃ to obtain mixed sol, adding toluene for extraction to remove water to obtain silica sol;
the particle size of the acidic silica is less than 30nm.
2. The anti-fouling self-cleaning glass substrate according to claim 1, wherein the weight ratio of the liquid a to the liquid B is (0.8-1.2): 1.
3. The anti-fouling self-cleaning glass substrate according to any one of claims 1-2, wherein the glass substrate is a tempered glass.
4. A method of preparing an anti-fouling self-cleaning glass substrate according to any one of claims 1 to 3, characterized in that the method comprises the steps of: spraying the composite coating on the surface of the glass substrate by using a spray gun, wherein the diameter of the spray gun is 0.3-0.5mm, and the spraying distance is 15-20 cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210693223.5A CN115368025B (en) | 2022-06-17 | 2022-06-17 | Anti-pollution self-cleaning glass substrate and preparation method thereof |
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| CN202210693223.5A CN115368025B (en) | 2022-06-17 | 2022-06-17 | Anti-pollution self-cleaning glass substrate and preparation method thereof |
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| CN115368025A CN115368025A (en) | 2022-11-22 |
| CN115368025B true CN115368025B (en) | 2024-06-14 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09208898A (en) * | 1995-12-01 | 1997-08-12 | Nissan Chem Ind Ltd | Coating film having low refractive index and water repellency |
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| EP2935488A1 (en) * | 2012-12-21 | 2015-10-28 | Unilever N.V. | Composition for hydrophobic coating |
| CN103951276B (en) * | 2014-05-04 | 2016-03-23 | 江南大学 | A self-cleaning anti-reflection film and preparation method thereof |
| CN105199512B (en) * | 2015-10-08 | 2017-08-25 | 鹤山市顺鑫实业有限公司 | A kind of water-based hydrophobic agent and preparation method thereof |
| CN105400239B (en) * | 2015-12-18 | 2017-08-11 | 北京航天赛德科技发展有限公司 | A kind of preparation method of modifying super hydrophobicity silica |
| CN105462070A (en) * | 2015-12-30 | 2016-04-06 | 华东理工大学 | High-performance hydrophilic polypropylene composite and preparation method thereof |
| CN108517154A (en) * | 2018-03-16 | 2018-09-11 | 南开大学 | A kind of aqueous, floride-free super hydrophobic coating and preparation method |
| CN112831272A (en) * | 2021-01-11 | 2021-05-25 | 南京航空航天大学 | A kind of preparation method of high wear-resisting self-healing superhydrophobic coating |
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| JPH09208898A (en) * | 1995-12-01 | 1997-08-12 | Nissan Chem Ind Ltd | Coating film having low refractive index and water repellency |
| CN110093050A (en) * | 2018-01-29 | 2019-08-06 | 新材料与产业技术北京研究院 | Superhydrophilic self-cleaning coating composition, superhydrophilic self-cleaning glass and preparation method thereof |
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