CN115215554A - Hydrophobic glass substrate and preparation method and application thereof - Google Patents
Hydrophobic glass substrate and preparation method and application thereof Download PDFInfo
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- CN115215554A CN115215554A CN202210806272.5A CN202210806272A CN115215554A CN 115215554 A CN115215554 A CN 115215554A CN 202210806272 A CN202210806272 A CN 202210806272A CN 115215554 A CN115215554 A CN 115215554A
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- glass substrate
- hydrophobic
- heptadecafluorodecyltriethoxysilane
- ethanol solution
- laser
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- 239000011521 glass Substances 0.000 title claims abstract description 125
- 239000000758 substrate Substances 0.000 title claims abstract description 106
- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000000034 method Methods 0.000 claims abstract description 39
- 238000001035 drying Methods 0.000 claims abstract description 23
- 238000004140 cleaning Methods 0.000 claims abstract description 20
- 238000011282 treatment Methods 0.000 claims abstract description 20
- 238000013532 laser treatment Methods 0.000 claims abstract description 15
- 238000002791 soaking Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 3
- 239000005328 architectural glass Substances 0.000 claims 1
- 230000003373 anti-fouling effect Effects 0.000 abstract description 8
- 238000012986 modification Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000003075 superhydrophobic effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 101710179738 6,7-dimethyl-8-ribityllumazine synthase 1 Proteins 0.000 description 1
- 241000931705 Cicada Species 0.000 description 1
- 101710186608 Lipoyl synthase 1 Proteins 0.000 description 1
- 101710137584 Lipoyl synthase 1, chloroplastic Proteins 0.000 description 1
- 101710090391 Lipoyl synthase 1, mitochondrial Proteins 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 150000001343 alkyl silanes Chemical class 0.000 description 1
- -1 alkyl silicate Chemical compound 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- RSKGMYDENCAJEN-UHFFFAOYSA-N hexadecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCCCCCC[Si](OC)(OC)OC RSKGMYDENCAJEN-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J1/00—Windows; Windscreens; Accessories therefor
-
- 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
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/0095—Solution impregnating; Solution doping; Molecular stuffing, e.g. of porous glass
Abstract
The invention relates to the technical field of glass surface modification, and discloses a hydrophobic glass substrate, and a preparation method and application thereof. The method comprises the following steps: (1) Carrying out laser treatment on the surface of the glass substrate to obtain a glass substrate I with a plurality of columnar structures; the height-diameter ratio of the columnar structure is 1:1-3, and the distance between adjacent columnar structures is 80-120 μm; (2) Soaking the glass substrate I in an ethanol solution containing 1H, 2H-heptadecafluorodecyltriethoxysilane to obtain a glass substrate II, and carrying out first drying treatment on the glass substrate II; the concentration of 1H, 2H-heptadecafluorodecyltriethoxysilane in the ethanol solution is 0.1-3 vol%. The glass substrate prepared by the method provided by the invention has enhanced hydrophobic property, the contact angle is larger than 150 degrees, and the self-cleaning antifouling property of the glass surface can be realized.
Description
Technical Field
The invention relates to the technical field of glass surface modification, in particular to a hydrophobic glass substrate and a preparation method and application thereof.
Background
Glass is a widely used material in daily life and industrial production, such as building glass, automobile glass and the like. When the glass is used outdoors, it is often contaminated with contaminants such as dust. Inconvenience is brought to work and life of people, and certain hidden danger is caused to personal safety.
Through the evolution and evolution of hundreds of millions of years, a large number of organisms in nature form natural and reasonable super-hydrophobic structures. The typical biological super-hydrophobic structure is as follows: lotus leaf, cicada's wing and rice leaf. The microstructure and low surface energy chemical composition of these biosurfaces impart excellent superhydrophobicity to the surfaces and also impart self-cleaning antifouling properties to them.
Therefore, in the aspects of engineering material design and manufacture, the method has important significance for endowing the glass with super-hydrophobicity and self-cleaning antifouling performance.
In order to obtain hydrophobic glass, the prior art usually sprays a hydrophobic coating on the surface of the glass or evaporates a layer of hydrophobic coating liquid.
CN1778749A discloses a glass hydrophobic coating liquid, which consists of a long-chain alkyl silane coupling agent, alkyl silicate, alcohol, an inorganic acid catalyst and deionized water or distilled water, wherein a transparent hydrophobic film can be formed on the surface of automobile glass by adopting the glass hydrophobic coating liquid, water drops can form water drops on the surface of the glass, the contact angle of the water drops can reach 110 ℃, automatic rolling-off can be realized without leaving traces, and the problem of unclear sight is solved.
However, the plating film obtained by the above method has a complicated preparation process, and the obtained plating film is easily peeled off and has a defect of poor hydrophobicity.
Disclosure of Invention
The invention aims to overcome the defects of complex preparation process and poor hydrophobicity of the hydrophobic glass in the prior art.
In order to achieve the above object, a first aspect of the present invention provides a method for preparing a hydrophobic glass substrate, the method comprising:
(1) Carrying out laser treatment on the surface of the glass substrate to obtain a glass substrate I with a plurality of columnar structures; the height-diameter ratio of the columnar structure is 1:1-3, and the distance between adjacent columnar structures is 80-120 μm;
(2) Soaking the glass substrate I in an ethanol solution containing 1H, 2H-heptadecafluorodecyltriethoxysilane to obtain a glass substrate II, and carrying out first drying treatment on the glass substrate II; the concentration of said 1H, 2H-heptadecafluorodecyltriethoxysilane in said ethanol solution is 0.1-3% by volume.
Preferably, in step (1), the laser treatment is performed in the presence of ultraviolet light.
Preferably, in step (1), the laser processing conditions at least include: the pulse width is 100-200ns, the pulse repetition frequency is 10-30kHz, the laser power is 40-60W, the diameter of the focused effective spot is about 30-50 μm, and the laser scanning speed is 400-600mm/s.
Preferably, in step (1), the height-to-diameter ratio of the columnar structure is 1:1.2-2.
Preferably, in the step (2), the concentration of 1H, 2H-heptadecafluorodecyltriethoxysilane in the ethanol solution is 0.5-2 vol%.
Preferably, in step (2), the soaking conditions at least include: the temperature is 20-40 ℃, and the time is 12-24h.
Preferably, in step (2), the method further comprises: before the glass substrate I is soaked in an ethanol solution containing 1H, 2H-heptadecafluorodecyltriethoxysilane, the glass substrate I is subjected to second cleaning and second drying treatment in sequence.
Preferably, in step (2), the conditions of the first drying treatment include at least: the temperature is 20-40 deg.C, and the time is 6-12h.
Preferably, in step (2), the method further comprises: before the first drying treatment, the glass substrate II is subjected to first cleaning.
In a second aspect, the invention provides a hydrophobic glass substrate produced by the method of the first aspect.
In a third aspect, the invention provides the use of the hydrophobic glass substrate of the second aspect in automotive and architectural glazing.
The glass substrate prepared by the method provided by the invention has enhanced hydrophobic property, the contact angle is larger than 150 degrees, and the self-cleaning antifouling property of the glass surface can be realized.
Drawings
FIG. 1 is a schematic contact angle diagram of a hydrophobic glass substrate prepared in example 1 of the present invention;
FIG. 2 is a schematic contact angle diagram of a control glass substrate;
FIG. 3 is a schematic view of the hydrophobic glass substrate cleaning and anti-fouling process prepared in example 1 of the present invention.
Description of the reference numerals
1. Water droplet 2, hydrophobic glass substrate
3. Control group glass substrate 4, dust and particulate contamination
Detailed Description
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
In the present invention, unless otherwise specified, the room temperature or the room temperature both represent 25. + -. 2 ℃.
In the present invention, the aspect ratio of the columnar structure is "the ratio of the height of the columnar structure to the diameter of the columnar structure".
As previously noted, a first aspect of the present invention provides a method of making a hydrophobic glass substrate, the method comprising:
(1) Carrying out laser treatment on the surface of the glass substrate to obtain a glass substrate I with a plurality of columnar structures; the height-diameter ratio of the columnar structure is 1:1-3, and the distance between adjacent columnar structures is 80-120 μm;
(2) Soaking the glass substrate I in an ethanol solution containing 1H, 2H-heptadecafluorodecyltriethoxysilane to obtain a glass substrate II, and carrying out first drying treatment on the glass substrate II; the concentration of the 1H, 2H-heptadecafluorodecyltriethoxysilane in the ethanol solution is 0.1-3 vol%.
In the research process, the inventor of the invention finds that a micro-nano hierarchical structure formed by laser processing and sputtering is matched with an ethanol solution containing 1H, 2H-heptadecafluorodecyltriethoxysilane with specific concentration, so that a super-hydrophobic surface can be formed on the surface of glass, the contact angle of the surface of an obtained glass substrate is more than 150 degrees, and a super-hydrophobic state is achieved.
The size of the glass substrate is not particularly required in the present invention, and glass substrates of different sizes may be designed as required, and may be (1-20) cm × (1-20) cm × (0.1-0.5) cm, for example.
Preferably, in step (1), the laser treatment is performed in the presence of ultraviolet light.
According to a particularly preferred embodiment, in step (1), the laser treatment conditions comprise at least: the pulse width is 100-200ns, the pulse repetition frequency is 10-30kHz, the laser power is 40-60W, the diameter of the focused effective spot is about 30-50 μm, and the laser scanning speed is 400-600mm/s.
According to a particularly preferred embodiment of the invention, in step (1), the aspect ratio of the columnar structure is 1:1.2-2. The inventors have found that with this embodiment of the preferred case, a glass substrate having more excellent hydrophobic properties can be obtained.
According to a particularly preferred embodiment of the present invention, in step (2), the concentration of 1H, 2H-heptadecafluorodecyltriethoxysilane in the ethanol solution is 0.5 to 2% by volume. The inventors have found that in this preferred embodiment, a glass substrate having more excellent hydrophobic properties can be produced.
According to a particularly preferred embodiment of the invention, in step (2), the distance to 3cm is 2 The dosage of the ethanol solution is 50-100mL.
Preferably, in step (2), the soaking conditions at least include: the temperature is 20-40 ℃, and the time is 12-24h.
Preferably, in step (2), the method further comprises: before the glass substrate I is soaked in an ethanol solution containing 1H, 2H-heptadecafluorodecyltriethoxysilane, the glass substrate I is subjected to second cleaning and second drying treatment in sequence.
Preferably, in the step (2), the solvent of the second cleaning is ethanol, and the second cleaning is performed under ultrasonic conditions.
According to a particularly preferred embodiment, in step (2), the conditions of the second washing include at least: the ultrasonic power is 100-200W, and the temperature is 20-30 ℃.
According to a particularly preferred embodiment, in step (2), the conditions of the second drying treatment comprise at least: the temperature is 20-40 deg.C, and the time is 0.2-1h.
Preferably, in step (2), the conditions of the first drying treatment include at least: the temperature is 20-40 deg.C, and the time is 6-12h.
According to a particularly preferred embodiment of the present invention, in step (2), the method further comprises: before the first drying treatment, the glass substrate II is subjected to first cleaning.
Preferably, in the step (2), the solvent for the first washing is ethanol, and the number of times of the first washing is 1 to 5 times.
As previously noted, a second aspect of the present invention provides a hydrophobic glass substrate produced by the method of the first aspect.
As previously mentioned, a third aspect of the invention provides the use of the hydrophobic glass substrate of the second aspect in automotive and architectural glazing.
The present invention will be described in detail below by way of examples. In the following examples, various raw materials and instruments used are commercially available unless otherwise specified.
1H, 2H-heptadecafluorodecyltriethoxysilane: from Aladdin reagents, inc.;
in the following examples, the laser treatment was carried out in an ultraviolet laser (model UV-50, available from New industries, ltd., catharan).
Example 1
The present example provides a method of making a hydrophobic glass substrate, the method comprising:
(1) Carrying out ultraviolet laser treatment on the surface of a glass substrate to obtain a glass substrate I with a plurality of columnar structures;
wherein the diameter of the columnar structure is 50 μm, the height is 60 μm, and the distance between adjacent columnar structures is 100 μm;
the conditions of the ultraviolet laser treatment are as follows: the wavelength of the laser is 350nm, the pulse width is 150ns, the pulse repetition frequency is 20kHz, the laser power is 50W, the diameter of an effective spot after focusing is about 40 mu m, and the laser scanning rate is 500mm/s;
(2) Ultrasonically cleaning a glass substrate I in ethanol (the ultrasonic power is 150W, the temperature is 25 ℃), drying the glass substrate I for 0.5h at room temperature, then soaking the glass substrate I in an ethanol solution containing 1H,2H and 2H-heptadecafluorodecyltriethoxysilane to obtain a glass substrate II, washing the glass substrate II for 3 times by using ethanol, and finally carrying out first drying treatment to obtain a hydrophobic glass substrate S1;
wherein, in the ethanol solution, the concentration of the 1H, 2H-heptadecafluorodecyltriethoxysilane is 1 volume percent, and the dosage of the ethanol solution is 200mL;
the conditions of the first drying treatment were: the temperature is room temperature and the time is 8h.
Example 2
The present example provides a method of making a hydrophobic glass substrate, the method comprising:
(1) Carrying out ultraviolet laser treatment on the surface of a glass substrate to obtain a glass substrate I with a plurality of columnar structures;
wherein the diameter of the columnar structure is 40 μm, the height is 60 μm, and the distance between the adjacent columnar structures is 100 μm;
the conditions of the ultraviolet laser treatment are as follows: the wavelength of the laser is 350nm, the pulse width is 150ns, the pulse repetition frequency is 20kHz, the laser power is 50W, the diameter of an effective spot after focusing is about 40 mu m, and the laser scanning rate is 500mm/s;
(2) Ultrasonically cleaning a glass substrate I in ethanol (the ultrasonic power is 150W, the temperature is 25 ℃), drying the glass substrate I for 0.5h at room temperature, then soaking the glass substrate I in an ethanol solution containing 1H,2H and 2H-heptadecafluorodecyltriethoxysilane to obtain a glass substrate II, washing the glass substrate II for 3 times by using ethanol, and finally carrying out first drying treatment to obtain a hydrophobic glass substrate S2;
wherein, in the ethanol solution, the concentration of the 1H, 2H-heptadecafluorodecyltriethoxysilane is 2 volume percent, and the dosage of the ethanol solution is 200mL;
the conditions of the first drying treatment were: the temperature is room temperature and the time is 8h.
Example 3
The present example provides a method of making a hydrophobic glass substrate, the method comprising:
(1) Carrying out ultraviolet laser treatment on the surface of a glass substrate to obtain a glass substrate I with a plurality of columnar structures;
wherein the diameter of the columnar structure is 50 μm, the height is 80 μm, and the distance between adjacent columnar structures is 100 μm;
the conditions of the ultraviolet laser treatment are as follows: the wavelength of the laser is 350nm, the pulse width is 150ns, the pulse repetition frequency is 20kHz, the laser power is 50W, the diameter of the focused effective facula is about 40 mu m, and the laser scanning rate is 500mm/s;
(2) Ultrasonically cleaning a glass substrate I in ethanol (the ultrasonic power is 150W, the temperature is 25 ℃), drying the glass substrate I for 0.5h at room temperature, then soaking the glass substrate I in an ethanol solution containing 1H, 2H-heptadecafluorodecyltriethoxysilane to obtain a glass substrate II, washing the glass substrate II for 3 times by using the ethanol, and finally performing first drying treatment to obtain a hydrophobic glass substrate S3;
wherein, in the ethanol solution, the concentration of the 1H, 2H-heptadecafluorodecyltriethoxysilane is 0.5 volume percent, and the dosage of the ethanol solution is 200mL;
the conditions of the first drying treatment were: the temperature is room temperature and the time is 8h.
Example 4
A hydrophobic glass substrate was prepared by following the procedure of example 1, except that, in the step (1), the height of the columnar structure was 50 μm.
The remaining steps were the same as in example 1, to obtain a hydrophobic glass substrate S5.
Example 5
A hydrophobic glass substrate was prepared by the method of example 1, except that, in the step (2), the concentration of 1H, 2H-heptadecafluorodecyltriethoxysilane was 3% by volume in the ethanol solution, and the amount of the ethanol solution was 200mL.
The remaining steps were the same as in example 1, to obtain a hydrophobic glass substrate S6.
Comparative example 1
A hydrophobic glass substrate was prepared by following the procedure of example 1, except that, in the step (1), the height of the columnar structure was 30 μm.
The remaining procedure was the same as in example 1, yielding a hydrophobic glass substrate DS1.
Comparative example 2
A hydrophobic glass substrate was prepared by following the procedure of example 1 except that in step (2), 1H, 2H-heptadecafluorodecyltriethoxysilane was replaced with an equal volume amount of hexadecyltrimethoxysilane.
The remaining procedure was the same as in example 1, yielding a hydrophobic glass substrate DS2.
Test example
The hydrophobic glass substrates prepared in examples and comparative examples were subjected to a hydrophobic property test, and the untreated glass substrate was used as a control group (hereinafter, referred to as LS 1), and the specific test results are shown in table 1.
The contact angle test method comprises the following steps: using a DSA25S type optical contact angle measuring instrument (germany), distilled water was selected as the test liquid, the drop volume of the distilled water was set to 5 μ L, five different positions were selected for the same sample surface for contact angle measurement, and the average value of the measurement results was taken as the value of the contact angle.
TABLE 1
| Example numbering | Contact Angle/° |
| Example 1 | 157.5 |
| Example 2 | 156.1 |
| Example 3 | 154.7 |
| Example 4 | 151.2 |
| Example 5 | 154.1 |
| Comparative example 1 | 121.2 |
| Comparative example 2 | 117.8 |
| LS1 | 17.4 |
The results in table 1 show that the glass substrate prepared by the method provided by the invention has enhanced hydrophobic property, the contact angle is larger than 150 degrees, and the self-cleaning antifouling property of the glass surface can be realized.
The present invention provides a schematic diagram of contact angles of a control glass substrate and a hydrophobic glass substrate prepared in example 1 of the present invention, and a schematic diagram of a cleaning and anti-fouling process of a hydrophobic glass substrate prepared in example 1 of the present invention, which are shown in fig. 1, fig. 2 and fig. 3, respectively.
Fig. 1 is a schematic contact angle diagram of a hydrophobic glass substrate prepared in example 1 of the present invention, and fig. 2 is a schematic contact angle diagram of a control glass substrate, where 1 is a water drop, 2 is a hydrophobic glass substrate prepared in example 1 of the present invention, and 3 is a control glass substrate.
As can be seen from fig. 1 and fig. 2, the hydrophobic glass substrate prepared by the method provided by the present invention has excellent hydrophobic property, and the contact angle thereof is 157.5 °; whereas the untreated plain glass substrate remained in the original hydrophilic state with a contact angle of 17.4 °.
Fig. 3 is a schematic view of the hydrophobic glass substrate cleaning and anti-fouling process prepared in example 1 of the present invention, wherein 1 is water drop, 2 is the hydrophobic glass substrate prepared in example 1 of the present invention, and 4 is dust and particle contamination.
As can be seen from fig. 3, when dust and particle contamination exist on the hydrophobic glass substrate provided by the present invention, the dust and particle contamination can be rapidly cleaned when water drops are dropped on the surface of the hydrophobic glass substrate, and the hydrophobic glass substrate provided by the present invention also has excellent self-cleaning performance compared with the conventional glass.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (10)
1. A method of making a hydrophobic glass substrate, comprising:
(1) Carrying out laser treatment on the surface of the glass substrate to obtain a glass substrate I with a plurality of columnar structures; the height-diameter ratio of the columnar structure is 1:1-3, and the distance between adjacent columnar structures is 80-120 μm;
(2) Soaking the glass substrate I in an ethanol solution containing 1H, 2H-heptadecafluorodecyltriethoxysilane to obtain a glass substrate II, and carrying out first drying treatment on the glass substrate II; the concentration of said 1H, 2H-heptadecafluorodecyltriethoxysilane in said ethanol solution is 0.1-3% by volume.
2. The method according to claim 1, wherein in step (1), the laser treatment is performed in the presence of ultraviolet light; and/or
In step (1), the laser processing conditions at least include: the pulse width is 100-200ns, the pulse repetition frequency is 10-30kHz, the laser power is 40-60W, the diameter of the focused effective spot is about 30-50 μm, and the laser scanning speed is 400-600mm/s.
3. The method according to claim 1 or 2, wherein in step (1), the height to diameter ratio of the columnar structure is 1:1.2-2.
4. The method according to any one of claims 1 to 3, wherein in the step (2), the concentration of 1H, 2H-heptadecafluorodecyltriethoxysilane in the ethanol solution is 0.5 to 2% by volume.
5. The method according to any one of claims 1 to 4, wherein in step (2), the soaking conditions at least comprise: the temperature is 20-40 ℃, and the time is 12-24h.
6. The method according to any one of claims 1 to 5, wherein in step (2), the method further comprises: before the glass substrate I is soaked in an ethanol solution containing 1H, 2H-heptadecafluorodecyltriethoxysilane, the glass substrate I is subjected to second cleaning and second drying treatment in sequence.
7. The method according to any one of claims 1 to 6, wherein in step (2), the conditions of the first drying treatment include at least: the temperature is 20-40 deg.C, and the time is 6-12h.
8. The method according to any one of claims 1 to 7, wherein in step (2), the method further comprises: before the first drying treatment, the glass substrate II is subjected to first cleaning.
9. A hydrophobic glass substrate prepared by the method of any one of claims 1-8.
10. Use of the hydrophobic glass substrate of claim 9 in automotive and architectural glass.
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