CN109127331A - A kind of method that infrared laser prepares super-hydrophobic zinc alloy surface - Google Patents
A kind of method that infrared laser prepares super-hydrophobic zinc alloy surface Download PDFInfo
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- CN109127331A CN109127331A CN201811135304.3A CN201811135304A CN109127331A CN 109127331 A CN109127331 A CN 109127331A CN 201811135304 A CN201811135304 A CN 201811135304A CN 109127331 A CN109127331 A CN 109127331A
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- zinc alloy
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- kirsite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- 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
-
- 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
Abstract
The invention belongs to Metal Substrate process for modifying surface fields, and in particular to a kind of method that infrared laser prepares super-hydrophobic zinc alloy surface the described method comprises the following steps: (1) be cleaned and dried zinc alloy surface, obtains pretreatment kirsite；(2) micro-structure is etched in pretreatment zinc alloy surface with infrared laser marking machine, obtains micro-structure kirsite；(3) micro-structure kirsite is subjected to cleaning, drying, obtains clean micro-structure kirsite；(4) clean micro-structure kirsite is immersed constant temperature in stearic acid ethanol solution to modify, then cleaning, drying, obtains super-hydrophobic zinc alloy surface.The present invention overcomes the inflammable disadvantage of kirsite, laser preparation micro-structure process will not ignite zinc alloy surface, and the surface micro-structure quality and stability of preparation are good.
Description
Technical field
The invention belongs to Metal Substrate process for modifying surface fields, and in particular to a kind of infrared laser prepares super-hydrophobic kirsite
The method on surface.
Background technique
Currently, zinc is only second to copper and aluminium in non-ferrous metal consumption.Zinc has good wearability, corrosion resistance, room temperature
The alloy of function admirable can be made in mechanicalness and anti-electromagnetic field etc. with various metals.Kirsite is widely used in automobile, builds
It builds, the industries such as household electrical appliance, ship, light industry, machinery, battery.In the occasion of radio frequency interference, zine plate is a kind of very effective screen
Cover material, simultaneously because zinc be it is nonmagnetic, be suitble to do instrument and meter part and instrument housing.But the parent shown due to metal
It is aqueous, zinc is limited in the utilization of certain special occasions, such as the circuit board to work in wet environment, the instrument in water
Deng.Therefore, the hydrophobic performance for improving kirsite, the application occasion for expanding kirsite seem particularly significant.
Water droplet on lotus leaf can easily roll over, this has shown a kind of special surface wet face state.Cassie
Micron and nanometer composite structure and low-surface energy substance Deng discovery lotus leaf surface are that lotus leaf has the reason of special wellability.Study table
Bright, when the contact angle of the surface of solids and water is greater than 150 °, when slide angle is less than 10 °, which has the special infiltration of lotus leaf
Performance, i.e. ultra-hydrophobicity.Go out the micro-structure and low-surface energy substance of similar lotus leaf surface by Bionic Design, it is artificial super-hydrophobic
Surface emerges already.Super hydrophobic surface has the advantages that many, in anti-frost, anticorrosion, rub resistance, sliding drag reduction, automatically cleaning
Etc. have huge application value.For example, its hydrophobic performance can be increased in circuit board structure micro-structure, relax its work
Environment；Super hydrophobic surface is prepared on instrument, corrosion resistance can be improved, and increases service life；In ship, deep sea diving
Super-hydrophobic technology is used on device, be can reduce resistance to water-flow, is reduced the use of fuel oil, reduce cost.Thus, use infrared laser
Marking machine prepares the micro-structure function surface with ultra-hydrophobicity in zinc alloy surface, can be improved kirsite it is hydrophobic,
The performances such as anticorrosion, drag reduction expand the application occasion of kirsite.
Currently, the method for preparing super hydrophobic surface for being suitable for metal base is mainly hydro-thermal method, laser ablation method, chemistry
Etching method, electrochemical etching method etc..Laser ablation method is since processing quality is good, and surface micro-structure is stablized, and process is controllable, easily
A large amount of concerns by people in realize automation the advantages that.Application No. is 201410667574.4 patents to disclose a kind of structure
Aluminium alloy is first put into alkaline etching in NAOH solution, places into phosphoric acid solution and be electrolysed, so by the method for making high stable super hydrophobic surface
After be put into ammonium hydroxide and corrode, prepare super hydrophobic surface after surface modification finally by dressing agent.Application No. is
201510281710.0 patent disclose a kind of side that kirsite super-hydrophobic automatic cleaning surface is prepared using ultra-short pulse laser
Method etches micro-structure in zinc alloy surface using ultrashort pulse laser, places into drying in thermostatic drying chamber, and preparation excess of export is dredged
Water self-cleaning surface.Above-mentioned several laser etching methods can obtain preferable super hydrophobic surface, however there is also certain
The problem of, such as very high using femtosecond/nanosecond laser cost, processing efficiency is low, and acid-base reagent has pollution etc. to environment.It searches out
The low-cost method of simple process, which prepares stable super-hydrophobic zinc alloy surface, seems particularly important.
Summary of the invention
Invention broadly provides a kind of methods that infrared laser prepares super-hydrophobic zinc alloy surface, overcome kirsite inflammable
The shortcomings that, laser preparation micro-structure process will not ignite zinc alloy surface, and the surface micro-structure quality and stability of preparation are good.Its
Technical solution is as follows:
A kind of method that infrared laser prepares super-hydrophobic zinc alloy surface, comprising the following steps:
(1) zinc alloy surface is cleaned and dried, obtains pretreatment kirsite；
(2) micro-structure is etched in pretreatment zinc alloy surface with infrared laser marking machine, obtains micro-structure kirsite；
(3) micro-structure kirsite is subjected to cleaning, drying, obtains clean micro-structure kirsite；
(4) clean micro-structure kirsite is immersed constant temperature in stearic acid ethanol solution to modify, then cleaning, drying,
Obtain super-hydrophobic zinc alloy surface.
Preferably, zinc alloy surface is cleaned by ultrasonic respectively using dehydrated alcohol and deionized water in step (1), cleaning temperature
Degree is 40-70 DEG C, and single scavenging period is 4-8min, using the constant temperature oven of 110-140 DEG C of operating condition to zinc alloy surface
Dry 10-15min.
Preferably, etching condition is laser frequency 20kHz in step (2), laser power 10-12W, optical maser wavelength
For 1064nm.
Preferably, etching technics scanning speed is 40-150mms in step (2)-1, sweep span is 150-200 μm, single
Time for exposure is 2-5ms, laser pulse width 100ns.
Preferably, micro-structure kirsite is cleaned by ultrasonic respectively using dehydrated alcohol and deionized water in step (3), ultrasound
40-70 DEG C of cleaning temperature, frequency 36kHz, scavenging period 10-15min.
Preferably, the concentration of stearic acid ethanol solution is 0.1-0.3mol/L in step (3), and the modification time is 1.5-
2.5h, the temperature of constant temperature modification are 60-70 DEG C.
A kind of super-hydrophobic zinc alloy surface, is prepared by the above method.The super-hydrophobic zinc alloy surface is applied to
In terms of the waterproof performance for increasing battery and circuit device.
Using the above scheme, the invention has the following advantages that
(1) present invention uses suitable technological parameter, overcomes the disadvantage that kirsite is inflammable, and laser prepares micro-structure process not
Can ignite zinc alloy surface, and surface not overseas to heat affected area generates negative effect, not influence the surface of kirsite；
(2) micro-structure and basal body binding force etched using infrared laser marking machine in zinc alloy surface is strong, modification material
Material will not fall off in conjunction with aluminum alloy surface by hydroxyl, and the surface of preparation has well stable ultra-hydrophobicity, and surface is micro-
Architecture quality is good with stability；
(3) coating material that the present invention uses uses dehydrated alcohol and stearic acid solution, will not cause to human body
Adverse effect will not damage ecological environment, meet the principle of green production；
(4) by adjusting machined parameters, the micro-structure surface of the raster-like of rule can be obtained, and the contact angle on surface is greater than
150 °, it can reach 153.3 °.
Detailed description of the invention
Fig. 1 is the micro-structure diagram that 1 infrared laser of embodiment prepares super-hydrophobic zinc alloy surface；
Fig. 2 is the contact angle schematic diagram that 1 infrared laser of embodiment prepares super-hydrophobic zinc alloy surface；
Fig. 3 is the micro-structure diagram that 2 infrared laser of embodiment prepares super-hydrophobic zinc alloy surface；
Fig. 4 is the contact angle schematic diagram that 2 infrared laser of embodiment prepares super-hydrophobic zinc alloy surface.
Specific embodiment
Experimental method in following embodiment is conventional method unless otherwise required, related experiment reagent and material
Material is conventional biochemical reagent and material unless otherwise required.
Embodiment 1
The method that the infrared laser of the present embodiment prepares super-hydrophobic zinc alloy surface, includes the following steps:
(1) pre-process: by 20mm × 20mm × 0.5mm kirsite sample successively use dehydrated alcohol and deionized water into
Row ultrasonic cleaning, cleaning temperature are 55 DEG C, and single cleans 5min, and the drying condition is to do in 130 DEG C of constant temperature oven
Dry 15min obtains pretreatment kirsite；
(2) laser ablation: preparing micro-structure with infrared laser marking machine pretreatment zinc alloy surface obtained by step (1),
The technological parameter of laser ablation are as follows: laser frequency 20kHz, laser power 10.5w, optical maser wavelength 1064nm, scanning speed
50mms-1, 150 μm of sweep span, the single exposure time be 4ms, etch channel form micro-structure, obtain micro-structure kirsite；
(3) etching post-processing: successively use dehydrated alcohol and distilled water ultrasound clear micro-structure kirsite obtained by step (2)
It washes away except slag, cleaning condition is temperature 60 C, and frequency 36kHz, scavenging period 15min are dried after cleaning, obtained clean
Micro-structure kirsite；
(4) micro-structure kirsite clean obtained by step (3) surface modification: is put into the anhydrous second of stearic acid of 0.1mol/L
Constant temperature is modified in alcoholic solution, and temperature is 60 DEG C, and the modification time is 2.5h, after cleaning, drying, can prepare the zinc of super hydrophobic surface
Alloy.
The micro-structure diagram for the super-hydrophobic zinc alloy surface that this example is prepared is as shown in Figure 1, surface is in micron order grating
Coarse structure.The contact angle for the super-hydrophobic zinc alloy surface that this example is prepared is as shown in Fig. 2, water contact angle is 152.4 °.
Embodiment 2
The method that the infrared laser of the present embodiment prepares super-hydrophobic zinc alloy surface, includes the following steps:
(1) pre-process: by 20mm × 20mm × 0.5mm kirsite sample successively use dehydrated alcohol and deionized water into
Row ultrasonic cleaning, cleaning temperature are 70 DEG C, and single cleans 8min, and the drying condition is to do in 110 DEG C of constant temperature oven
Dry 10min obtains pretreatment kirsite；
(2) laser ablation: preparing micro-structure with infrared laser marking machine pretreatment zinc alloy surface obtained by step (1),
The technological parameter of laser ablation are as follows: laser frequency 20kHz, laser power 12w, optical maser wavelength 1064nm, scanning speed 100mms-1, 200 μm of sweep span, the single exposure time be 2ms, etch channel form micro-structure, obtain micro-structure kirsite；
(3) etching post-processing: successively use dehydrated alcohol and distilled water ultrasound clear micro-structure kirsite obtained by step (2)
It washes away except slag, cleaning condition is 40 DEG C of temperature, and frequency 36kHz, scavenging period 10min are dried after cleaning, are obtained clean
Micro-structure kirsite；
(4) micro-structure kirsite clean obtained by step (3) surface modification: is put into the anhydrous second of stearic acid of 0.3mol/L
Constant temperature is modified in alcoholic solution, and temperature is 70 DEG C, and the modification time is 1.5h, after cleaning, drying, can prepare the zinc of super hydrophobic surface
Alloy.
The micro-structure diagram for the super-hydrophobic zinc alloy surface that this example is prepared is as shown in figure 3, surface is in micron order grating
Coarse structure.The contact angle for the super-hydrophobic zinc alloy surface that this example is prepared is as shown in figure 4, water contact angle is 153.3 °.
The super hydrophobic surface regular appearance of above-mentioned preparation, water contact angle is higher, respectively 152.4 ° and 153.3 °, averagely connects
Feeler is higher than 150 °.Illustrate etching parameters method of the invention specific to prepare super-hydrophobic zinc alloy surface effect good.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (8)
1. a kind of method that infrared laser prepares super-hydrophobic zinc alloy surface, it is characterised in that: the following steps are included:
(1) zinc alloy surface is cleaned and dried, obtains pretreatment kirsite；
(2) micro-structure is etched in pretreatment zinc alloy surface with infrared laser marking machine, obtains micro-structure kirsite；
(3) micro-structure kirsite is subjected to cleaning, drying, obtains clean micro-structure kirsite；
(4) clean micro-structure kirsite is immersed constant temperature in stearic acid ethanol solution to modify, then cleaning, drying, obtains super
Hydrophobic zinc alloy surface.
2. the method that infrared laser according to claim 1 prepares super-hydrophobic zinc alloy surface, it is characterised in that: step
(1) zinc alloy surface is cleaned by ultrasonic respectively using dehydrated alcohol and deionized water in, cleaning temperature is 40-70 DEG C, and single is clear
Washing the time is 4-8min, uses the constant temperature oven of 110-140 DEG C of operating condition 10-15min dry to zinc alloy surface.
3. the method that infrared laser according to claim 1 prepares super-hydrophobic zinc alloy surface, it is characterised in that: step
(2) etching condition is in, laser frequency 20kHz, laser power 10-12W, optical maser wavelength 1064nm.
4. the method that infrared laser according to claim 1 prepares super-hydrophobic zinc alloy surface, it is characterised in that: step
(2) etching technics scanning speed is 40-150mms in-1, sweep span is 150-200 μm, and the single exposure time is 2-5ms, is swashed
Light pulsewidth is 100ns.
5. the method that infrared laser according to claim 1 prepares super-hydrophobic zinc alloy surface, it is characterised in that: step
(3) micro-structure kirsite is cleaned by ultrasonic respectively using dehydrated alcohol and deionized water in, 40-70 DEG C of cleaning temperature, frequency
Rate is 36kHz, scavenging period 10-15min.
6. the method that infrared laser according to claim 1 prepares super-hydrophobic zinc alloy surface, it is characterised in that: step
(3) concentration of stearic acid ethanol solution is 0.1-0.3mol/L in, and the modification time is 1.5-2.5h, the temperature of constant temperature modification
It is 60-70 DEG C.
7. a kind of super-hydrophobic zinc alloy surface, is prepared by method described in any one of claims 1-6.
8. application of the super-hydrophobic zinc alloy surface as claimed in claim 7 in battery circuit waterproof field.
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Cited By (7)
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| CN110548174A (en) * | 2019-08-30 | 2019-12-10 | 江苏理工学院 | Preparation method and application of super-hydrophobic pyrolytic carbon surface |
| CN110922625A (en) * | 2019-12-06 | 2020-03-27 | 山东大学 | Preparation method of PDMS (polydimethylsiloxane) super-hydrophobic surface by utilizing surface focusing thermal effect |
| CN112900546A (en) * | 2021-01-13 | 2021-06-04 | 温州大学 | Bionic self-driven water collection pattern capable of being applied to large-scale surface and preparation method thereof |
| CN113182698A (en) * | 2021-05-12 | 2021-07-30 | 长沙理工大学 | SiCpPreparation method of/Al composite material super-hydrophobic functional surface |
| CN113579480A (en) * | 2021-07-29 | 2021-11-02 | 湖北工业大学 | Preparation method of composite structure for reducing surface light reflectivity of titanium alloy |
| CN113667969A (en) * | 2021-08-18 | 2021-11-19 | 南京信息工程大学 | Composite method for regulating and controlling metal surface wettability |
| CN114178795A (en) * | 2021-12-16 | 2022-03-15 | 常州大学 | Preparation method of anisotropic super-hydrophobic surface of metal material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110548174A (en) * | 2019-08-30 | 2019-12-10 | 江苏理工学院 | Preparation method and application of super-hydrophobic pyrolytic carbon surface |
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| CN110922625B (en) * | 2019-12-06 | 2021-04-13 | 山东大学 | Preparation method of PDMS (polydimethylsiloxane) super-hydrophobic surface by utilizing surface focusing thermal effect |
| CN112900546A (en) * | 2021-01-13 | 2021-06-04 | 温州大学 | Bionic self-driven water collection pattern capable of being applied to large-scale surface and preparation method thereof |
| CN113182698A (en) * | 2021-05-12 | 2021-07-30 | 长沙理工大学 | SiCpPreparation method of/Al composite material super-hydrophobic functional surface |
| CN113579480A (en) * | 2021-07-29 | 2021-11-02 | 湖北工业大学 | Preparation method of composite structure for reducing surface light reflectivity of titanium alloy |
| CN113667969A (en) * | 2021-08-18 | 2021-11-19 | 南京信息工程大学 | Composite method for regulating and controlling metal surface wettability |
| CN114178795A (en) * | 2021-12-16 | 2022-03-15 | 常州大学 | Preparation method of anisotropic super-hydrophobic surface of metal material |
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Application publication date: 20190104 |