CN110842366A - Laser processing method for preparing ceramic surface super-hydrophilic structure - Google Patents
Laser processing method for preparing ceramic surface super-hydrophilic structure Download PDFInfo
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- CN110842366A CN110842366A CN201911209892.5A CN201911209892A CN110842366A CN 110842366 A CN110842366 A CN 110842366A CN 201911209892 A CN201911209892 A CN 201911209892A CN 110842366 A CN110842366 A CN 110842366A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
- B23K26/355—Texturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
- B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
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Abstract
The invention relates to a laser processing method for preparing a ceramic surface super-hydrophilic structure. Polishing, cleaning and drying a ceramic substrate to be processed, then placing the ceramic substrate on a laser processing platform, designing laser process parameters and a light beam scanning path, and processing a micron-scale groove structure on the ceramic surface by using a pulse laser processing process to prepare the super-hydrophilic ceramic surface. The invention utilizes the micron-sized groove structure formed by processing the pulse laser on the ceramic surface, can obtain a long-term super-hydrophilic surface on the ceramic surface, and can quickly and uniformly diffuse water drops to the periphery to play a good wetting role. Meanwhile, the pulse laser processing has the advantages of high processing efficiency, simplicity in operation, wide application range, high precision and the like, so that the processing method has a good application prospect.
Description
Technical Field
The invention relates to the technical field of laser processing of a super-hydrophilic microstructure, in particular to a method for realizing super-hydrophilic performance by processing a microstructure on the surface of a ceramic substrate by using pulse laser.
Background of the study
The ceramics have wide application in the industrial and agricultural production, daily life and medical fields, such as building materials, chemical pipelines, tableware, artistic articles and the like. The hydrophilic performance of the ceramic is improved, and multiple functions of self-cleaning, anti-fog, convenience in color moistening and the like can be realized. At present, the method for preparing the super-hydrophilic ceramic surface comprises the following steps: self-assembly molecular membrane method, liquid phase deposition method, sol-gel method, electrochemical method, and method for coating nano coating. Most of the existing preparation methods have the defects of complex operation, high cost, poor stability, short duration of super-hydrophilic property and the like, and even some processing methods can generate chemical pollution. The pulse laser processing has the advantages of high processing efficiency, simplicity in operation, wide application range, high precision, low cost, environmental friendliness and the like, so that the method for processing the super-hydrophilic structure on the surface of the ceramic by using the pulse laser shows good application prospect.
The invention utilizes pulse laser to directly prepare micron-sized groove structures which are arranged in parallel at equal intervals on the surface of a ceramic substrate, thereby realizing the super-hydrophilic property of the ceramic surface.
Disclosure of Invention
In order to research the super-hydrophilic structure processed on the surface of the ceramic material, the invention provides a method for processing a microstructure on the surface of a ceramic substrate by using pulse laser to realize super-hydrophilic performance, and the laser processing method has the advantages of simple and flexible process and low cost.
In order to achieve the purpose, the technical scheme of the invention is as follows:
step one, selecting a ceramic material for processing a super-hydrophilic structure on a surface;
polishing the surface of the ceramic substrate by using sand paper, ultrasonically cleaning the polished ceramic collection by using absolute ethyl alcohol or deionized water, and drying;
designing a micron-sized groove structure to be processed on the surface of the ceramic substrate by using laser;
step four, determining laser processing parameters, selecting the pulse laser processing power of 1-20W, the pulse frequency of 50-1000kHz, the pulse width of 0.01-100ps, the wavelength of 200-1100nm, and the scanning speed of 10-5000 mm/s;
and fifthly, placing the ceramic substrate to be processed on a laser precision processing platform, adjusting a laser beam to focus a focus on the surface of the ceramic substrate, and processing a micron-scale groove structure on the surface of the ceramic substrate according to a laser scanning process path by utilizing laser process parameters.
The ceramic material for processing the micron-sized groove structure comprises alumina ceramic, silicon nitride ceramic, silicon carbide ceramic, silicon dioxide ceramic, zirconia ceramic, zirconium boride ceramic and the like.
According to the micron-sized groove structure prepared by the preparation method, the minimum contact angle of a water drop on a ceramic processing surface is 0 degree.
The invention adopts pulse laser to directly process a micron-sized groove structure on the surface of a ceramic substrate, realizes the super-hydrophilic property of the ceramic surface, and has the advantages that:
(1) the invention utilizes the pulse laser precision processing technology to process the micron-sized groove structure on the surface of the ceramic material to realize the super-hydrophilic property, the processing technology is simple and flexible, the processing precision is high, and the quick and efficient processing of the micro-groove structure can be realized;
(2) the laser processing size range is large, the processing cost is low, the safety and the environmental protection are realized, the processing materials are wide, and the laser processing technological parameters are adjustable.
Drawings
FIG. 1 is a laser beam on Si3N4The optical microscope picture of the groove structure which is processed on the surface of the ceramic material and is arranged in parallel at equal intervals;
FIG. 2 shows water dropping on Si3N4Contact angle pictures of ceramic material processed surfaces.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings and are not intended to limit the scope of the invention.
The invention provides a method for processing a microstructure on the surface of a ceramic substrate by using pulse laser to realize super-hydrophilic performance, which comprises the following steps:
polishing the surface of a ceramic sample by using sand paper, and ultrasonically cleaning the polished sample for 5min by using deionized water;
processing a micron-sized structure on the surface of the ceramic material by using a pulse laser processing process;
testing the micron-sized groove structure processed on the surface of the ceramic material by the laser by using an optical microscope and a Scanning Electron Microscope (SEM);
and step five, adopting plasma water as liquid for detecting the super-hydrophilic property.
The groove structures which are arranged in parallel at equal intervals are prepared on the surface of the ceramic material according to the preparation method, the interval is 40 mu m, the groove width is 30 mu m, and the contact angle of water drops on the ceramic processing surface is 9.5 degrees.
In this embodiment, the ceramic material is Si3N4A ceramic material.
In this embodiment, the processing of the micron-sized groove structure on the surface of the ceramic material selects a femtosecond laser, and the processing parameters of the laser specifically are as follows: the laser wavelength was 1030nm, the laser pulse width was 209fs, the laser power was 6W, the laser frequency was 100kHz, the laser scanning speed was 15mm/s, and the number of scans was 15.
Referring to FIG. 1, the laser is on Si3N4The optical microscope picture of the groove structure which is processed on the surface of the ceramic material and is arranged in parallel at equal intervals;
referring to FIG. 2, water drops on Si3N4Contact angle pictures of ceramic material processed surfaces.
Claims (7)
1. A laser processing method for preparing a ceramic surface super-hydrophilic structure comprises the following steps:
step one, selecting a ceramic material for processing a super-hydrophilic structure on a surface;
polishing the surface of the ceramic substrate by using sand paper, ultrasonically cleaning the polished ceramic collection by using absolute ethyl alcohol or deionized water, and drying;
designing a micron-sized groove structure to be processed on the surface of the ceramic substrate by using laser;
step four, determining laser processing parameters and a laser scanning process path;
and fifthly, placing the ceramic substrate to be processed on a laser precision processing platform, adjusting a laser beam to focus a focus on the surface of the ceramic substrate, and processing a micron-scale groove structure on the surface of the ceramic substrate according to a laser scanning process path by utilizing laser process parameters.
2. The laser processing method for preparing the ceramic surface super-hydrophilic structure according to claim 1, characterized in that: the ceramic material comprises alumina ceramic, silicon nitride ceramic, silicon carbide ceramic, silicon dioxide ceramic, zirconia ceramic, zirconium boride ceramic and the like.
3. The laser processing method for preparing the ceramic surface super-hydrophilic structure according to claim 1, characterized in that: the micron-scale groove structures are arranged in parallel at equal intervals, the intervals are 10-50 mu m, and the width of the grooves is 20-100 mu m.
4. The laser processing method for preparing the ceramic surface super-hydrophilic structure according to claim 1, characterized in that: the processing power of the pulse laser is 1-20W, the pulse frequency is 50-1000kHz, the pulse width is 0.01-100ps, the wavelength is 200-1100nm, and the scanning speed is 10-5000 mm/s.
5. The laser processing method for preparing the ceramic surface super-hydrophilic structure according to claim 1, characterized in that: in the process of detecting the super-hydrophilicity performance, the adopted test liquid is deionized water.
6. The laser processing method for preparing the ceramic surface super-hydrophilic structure according to claim 1, characterized in that: a contact angle measuring instrument was used to measure the contact angle of a water droplet on a ceramic work surface.
7. The laser processing method for preparing the ceramic surface super-hydrophilic structure according to claim 1, characterized in that: on the prepared ceramic super-hydrophilic surface, the contact angle of a water drop is 0 degrees at most.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111360392A (en) * | 2020-03-04 | 2020-07-03 | 北京航空航天大学合肥创新研究院 | Femtosecond laser processing method for surface of ceramic implant |
| CN111673284A (en) * | 2020-05-29 | 2020-09-18 | 上海工程技术大学 | Method for improving wetting and spreading performance of reaction wetting system material |
| WO2021196004A1 (en) * | 2020-03-31 | 2021-10-07 | 深圳市合众清洁能源研究 | Method for strengthening joining performance of ceramic material by means of texturing |
| CN114105677A (en) * | 2021-12-28 | 2022-03-01 | 中国科学院长春光学精密机械与物理研究所 | Method for realizing lasting super-hydrophilicity of sapphire surface |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111360392A (en) * | 2020-03-04 | 2020-07-03 | 北京航空航天大学合肥创新研究院 | Femtosecond laser processing method for surface of ceramic implant |
| WO2021196004A1 (en) * | 2020-03-31 | 2021-10-07 | 深圳市合众清洁能源研究 | Method for strengthening joining performance of ceramic material by means of texturing |
| CN111673284A (en) * | 2020-05-29 | 2020-09-18 | 上海工程技术大学 | Method for improving wetting and spreading performance of reaction wetting system material |
| CN114105677A (en) * | 2021-12-28 | 2022-03-01 | 中国科学院长春光学精密机械与物理研究所 | Method for realizing lasting super-hydrophilicity of sapphire surface |
| CN114105677B (en) * | 2021-12-28 | 2022-12-06 | 中国科学院长春光学精密机械与物理研究所 | Method for realizing lasting super-hydrophilicity of sapphire surface |
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