CN106733547A - A kind of preparation method of wear-resisting super-hydrophobic metal surface - Google Patents
A kind of preparation method of wear-resisting super-hydrophobic metal surface Download PDFInfo
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- CN106733547A CN106733547A CN201611193958.2A CN201611193958A CN106733547A CN 106733547 A CN106733547 A CN 106733547A CN 201611193958 A CN201611193958 A CN 201611193958A CN 106733547 A CN106733547 A CN 106733547A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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- 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
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Abstract
The invention discloses a kind of preparation method of wear-resisting super-hydrophobic metal surface, orderly micrometer structure array is prepared in metal substrate surface by mask electrochemical micromachining；The surface that the metallic substrates of orderly micrometer structure array are prepared on surface generates two grades of coarse structures of concrete dynamic modulus using ultrasonic wave added anodic oxidation；Hydrophobic coating is sprayed into two grades of coarse structure surfaces of concrete dynamic modulus, solvent volatilizees, toasts, obtains naturally.Preparation method of the present invention, in the processing of ordered micro structure array, shelters the flexible insulating film that film machined micro structure array figure using Ultra-Violet Laser, this is sheltered film and can repeat profit and uses, and reduces processing step, improves efficiency, cost is reduced simultaneously, so as to be conducive to large-scale application；Micro-rough structure is directly in metallic substrates Ontology learning, and intensity is high；The metal surface multi-pore structure processed can protect hydrophobic coating, with good hydrophobicity, improve durability.
Description
Technical field
The invention belongs to metal surface modification and micro processing field, and in particular to a kind of wear-resisting super-hydrophobic metal surface
Preparation method.
Background technology
In recent years, metal super-hydrophobic surface is because in the inhibition of surface of workpiece anti-corrosion, between Drag Reduction, surface of friction pair
Very big application value in terms of the automatically cleaning on antifriction and metal decoration surface and cause the extensive concern of people.Surface hydrophobic
Mainly together decided on by the chemical composition and micro-geometry on surface, surface microroughness structure can strengthen hydrophobicity and reach
It is super-hydrophobic.
At present, metal surface hydrophobicity is typically realized by following approach：(1) chemical corrosion method or controllable thermal oxide are utilized
Method metal surface generate metal oxide nanostructure, realize low-surface-energy treatment realize it is super-hydrophobic, such as, and ZnO, SnO2、
The petal topographical surface of CuO；(2) nanostructured is generated on the basis of micro-structural, low-surface energy substance is then modified, so as to realizes
Metal surface superhydrophobic, such as, prepare orderly micrometer structure array first, then grows ZnO on metal micro architecture basics
Nanostructured；(3) the special appearance transitivity of product, realizes super-hydrophobic after being chemically reacted using metal and acid
Property；(4) metal surface pattern and chemical characteristic are changed by accurate complicated femtosecond laser technology, can directly prepares excess of export and dredge
The nano metal surface of water, without any immersion coating, can for a long time keep hydrophobicity.
The subject matter that the preparation method of current metal super-hydrophobic surface is present：One is the strength problem of super hydrophobic surface,
Often stability is poor, short life to show the fluorinated film of auxiliary modification low-surface-energy, is also manifested in realizing super-hydrophobic required
Two grades of nanostructureds are poor in substrate adhesive strength, easily destroyed, especially for the application scenario pole that there is contact friction
It is subject to destruction super-hydrophobic so as to lose；Two is nanostructured generation method poor for applicability to different metal substrate, such as chemistry
The method of the nanostructured of corrosion or thermal oxide generation is only applicable to several metals；Three is the efficiency and Cost Problems for preparing,
The method for such as preparing metal super-hydrophobic surface the need for report using femtosecond laser recently, it is not necessary to immersion coating, durability
It is good, but the technique essence that femtosecond laser is serially processed determines its inefficient, high cost, is not suitable for spread.
The content of the invention
It is an object of the invention to provide a kind of preparation method of wear-resisting super-hydrophobic metal surface, preparation method is solved to not
With metallic substrates are poor for applicability and efficiency is low, high cost problem.
The technical solution adopted in the present invention is, a kind of preparation method of wear-resisting super-hydrophobic metal surface, specifically according to
Lower step is implemented：
Step 1, orderly micrometer structure array is prepared by mask electrochemical micromachining in metal substrate surface；
Step 2, the surface that the metallic substrates of orderly micrometer structure array are prepared on surface uses ultrasonic wave added anodic oxygen
Metaplasia is into two grades of coarse structures of concrete dynamic modulus；
Step 3, two grades of coarse structure surfaces of concrete dynamic modulus that step 2 is obtained are sprayed to by hydrophobic coating, solvent volatilizees naturally,
Baking, obtains wear-resisting super-hydrophobic metal surface.
The features of the present invention is also resided in,
The detailed process of step 1 is：
Step 1.1, metallic substrates treatment：Metal substrate surface is processed by shot blasting with sand paper, makes metallic substrates coarse
Degree Ra≤0.3, is then cleaned with acetone, alcohol and deionized water successively, is dried after being dried up with nitrogen stand-by；
Film preparation is sheltered in step 1.2, patterned flex insulation：Flexible insulating film is carried out with alcohol and deionized water first
Clean and dried up with compressed air；Micro- open-work array, technological parameter are processed on flexible insulating film using Ultra-Violet Laser marking machine：
Speed：10~30mm/s, laser effective power：1~3W, frequency：20KHz；
Step 1.3, mask electrochemical micromachining prepares ordered micro structure：By Surface Machining, micro-structural open-work array is soft
Property film is fitted in material surface to be processed as film is sheltered, and enters line mask electrochemical micromachining；Electrolyte is 5~30%NaNO3
With the mixture of 5~30%NaCl, 5~20A/dm of current density2, 1~5V of voltage, 10~50mm of electrode gap；By ultrasound
Stirring, processing obtain the orderly micrometer structure in metal surface.
It is the polyimide film of 0.05~0.2mm that flexible insulating film uses thickness in step 1.2.
Ultrasonic agitation parameter is in step 1.3：Supersonic frequency 20KHz, 30~60W of ultrasonic power, work surface immersion
1~5mm of electrolyte depth.
Two grades of preparations of coarse structure of concrete dynamic modulus in step 2：It is with the metallic substrates that surface has made orderly micrometer structure
Dissolving anode, is processed, under without mask conditions while adjusting and optimizing ultrasound parameter carries out secondary process；Electrolytic parameter is：
5~30%NaNO of electrolyte3With the mixture of 5~30%NaCl, 10~50A/dm of current density2, 3~10V of voltage, between electrode
5~40mm of gap；Ultrasound parameter is：Supersonic frequency is 40KHz, and ultrasonic power is 100~300W, work surface immersion electrolyte
5~30mm of depth, two grades of coarse structures of concrete dynamic modulus are generated in whole metal substrate surface.
Step 3 detailed process is：
It is prepared by step 3.1, hydrophobic coating：By absolute ethyl alcohol, triethoxy (the trifluoro octyl group of -1H, 1H, 2H, 2H- ten) silane
Silicon fluoride nano-particle suspension is mixed to get as hydrophobic coating with nano silicon；
Step 3.2, the hydrophobic coating of preparation is sprayed to it is prepared with multistage micro-rough body structure surface, solvent from
So volatilization 10min, 150 DEG C of 10~30min of baking, that is, obtain super-hydrophobic metal surface.
Absolute ethyl alcohol, triethoxy (the trifluoro octyl group of -1H, 1H, 2H, 2H- ten) silane and nano silicon in step 3.1
Mass ratio be 100：0.5~2：5~15.
The beneficial effects of the invention are as follows the preparation method of the wear-resisting super-hydrophobic metal surface of the present invention, to metal base material
Applicability is wider, and preparation method is simple, low cost, it is adaptable to large-scale application.Specific surface is in the following aspects：
1) method based on anodic solution and ultrasonic wave added processing generation surface multistage coarse structure is applied to all metals
Base material, strong applicability；
2) in the processing of ordered micro structure array, film is sheltered exhausted using the flexibility that Ultra-Violet Laser machined micro structure array figure
Velum, this is sheltered film and can repeat profit and uses, and reduces processing step, improves efficiency, while cost is reduced, so that favorably
In large-scale application；
3) micro-rough structure is directly in metallic substrates Ontology learning, and intensity is high；
4) hydrophobic coating particle can form the structure of smaller one-level, further enhance hydrophobicity；
5) the metal surface multi-pore structure processed can protect hydrophobic coating, though micro-structural top hydrophobic layer due to
Contact friction is destroyed, still with good hydrophobicity, so as to improve durability.
Brief description of the drawings
Fig. 1 is in two grades of coarse structure scanning electron microscope (SEM) photographs prepared by tin-bronze base basal surface；
Fig. 2 is Contact-angle measurement result of the deionized water on prepared tin bronze surface.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
The preparation method of the wear-resisting super-hydrophobic metal surface of the present invention, specifically implements according to following steps：
Step 1, orderly micrometer structure array is prepared by mask electrochemical micromachining in metal substrate surface；
Detailed process is：
Step 1.1, metallic substrates treatment：Metal substrate surface is processed by shot blasting with sand paper, makes metallic substrates coarse
Degree Ra≤0.3, is then cleaned with acetone, alcohol and deionized water successively, is dried after being dried up with nitrogen stand-by；
Film preparation is sheltered in step 1.2, patterned flex insulation：Flexible insulating film uses thickness gathering for 0.05~0.2mm
Acid imide film, is cleaned to flexible insulating film with alcohol and deionized water and is dried up with compressed air first；Swashed using ultraviolet
Light marking machine processes micro- open-work array, technological parameter on flexible insulating film：Speed：10~30mm/s, laser effective power：1
~3W, frequency：20KHz；
Step 1.3, mask electrochemical micromachining prepares ordered micro structure：By Surface Machining, micro-structural open-work array is soft
Property film is fitted in material surface to be processed as film is sheltered, and enters line mask electrochemical micromachining；Electrolyte is 5~30%NaNO3
With the mixture of 5~30%NaCl, 5~20A/dm of current density2, 1~5V of voltage, 10~50mm of electrode gap；By ultrasound
Stirring strengthens the mass transfer of electrolytic process, and ultrasonic agitation parameter is：Supersonic frequency 20KHz, 30~60W of ultrasonic power, table to be processed
Face immerses 1~5mm of electrolyte depth, processing and obtains the orderly micrometer structure in metal surface；
Step 2, the surface that the metallic substrates of orderly micrometer structure array are prepared on surface uses ultrasonic wave added anodic oxygen
Metaplasia is into two grades of coarse structures of concrete dynamic modulus；
The metallic substrates that orderly micrometer structure has been made with surface are dissolving anode, are processed under without mask conditions,
Adjusting and optimizing ultrasound parameter carries out secondary process simultaneously；Electrolytic parameter is：5~30%NaNO of electrolyte3With 5~30%NaCl's
Mixture, 10~50A/dm of current density2, 3~10V of voltage, 5~40mm of electrode gap；Ultrasound parameter is：Supersonic frequency is
40KHz, ultrasonic power is 100~300W, work surface immersion electrolyte 5~30mm of depth, in whole metal substrate surface
Generation two grades of coarse structures of concrete dynamic modulus；
Step 3, by absolute ethyl alcohol, triethoxy (the trifluoro octyl group of -1H, 1H, 2H, 2H- ten) silane and particle diameter 80~
The nano silicon that 400nm is not waited is mixed to get silicon fluoride nano-particle suspension as hydrophobic coating；Wherein absolute ethyl alcohol,
The mass ratio of triethoxy (the trifluoro octyl group of -1H, 1H, 2H, 2H- ten) silane and nano silicon is 100：0.5~2：5~
15；
Step 4, the prepared Metal Substrate with multistage micro-rough structure is sprayed to by hydrophobic coating prepared by step 3
Basal surface, solvent volatilizees 10min naturally, 150 DEG C of 10~30min of baking, that is, obtain super-hydrophobic metal surface.
Fig. 1 is in two grades of coarse structure scanning electron microscope (SEM) photographs prepared by tin-bronze base basal surface, it can be seen that by this hair
Bright methods described can prepare concrete dynamic modulus coarse structure in metal substrate surface, be conducive to strengthening hydrophobicity, while can hold
Receive hydrophobic nano-particles, improve the wearability on hydrophobic function surface.
Fig. 2 be deionized water in the Contact-angle measurement on prepared tin bronze surface results, it can be seen that by the present invention
Prepared metal surface contact angle is more than 150 °, has reached super-hydrophobic.
The preparation method of the wear-resisting super-hydrophobic metal surface of the present invention, it is characterized in that：
1) orderly micrometer structure is prepared using mask electrochemical micromachining, shelters film for Ultra-Violet Laser machined micro-structural battle array
The flexible insulating film of row figure, this is sheltered film and can repeat profit and uses；
2) secondary microstructure is prepared in micro-structure surface using ultrasonic wave added anodic solution combined machining method；
3) according to the different qualities of base material, the immersion of adjusting and optimizing ultrasonic power, supersonic frequency and anode to be processed
The ultrasonic wave added such as depth of electrolyte machined parameters regulate and control work surface pattern, obtain metal surface concrete dynamic modulus secondary structure；
4) method of micrometer structure and secondary structure for preparing is suitable for all metallic substrates；
5) the low-surface-energy decorative material that the wear-resisting super-hydrophobic metal surface is used is received by the wear-resisting of different-grain diameter
The suspension that rice silicon dioxide granule immersion silicon fluoride ethanol solution is formed；
6) after the low-surface-energy modification suspension is coated in the metal substrate surface with secondary microstructure, nanoparticle
Son can be dispersed in substrate surface and micropore, and can be attached to substrate and be uneven by after solvent evaporation and after baking treatment
Surface form multistage micro-rough structure；
7) surface with multistage micro-rough structure prepared by can be realized super-hydrophobic；
8) during dewatering nano silicon dioxide granule in part intersperses among metal surface second hole gap structure, it is difficult to be ground and scrapes
Wipe, the occasion that there is contact friction can be applied to；
9) the multistage microstructure of the method and low-surface-energy modification is technique for parallel processing, efficient, simple, easy,
Prepared suitable for large area.
Embodiment 1
Step 1, orderly micrometer structure array is prepared by mask electrochemical micromachining in metal substrate surface；
Detailed process is：
Step 1.1, metallic substrates treatment：Metal substrate surface is processed by shot blasting with sand paper, makes metallic substrates coarse
Degree Ra≤0.3, is then cleaned with acetone, alcohol and deionized water successively, is dried after being dried up with nitrogen stand-by；
Film preparation is sheltered in step 1.2, patterned flex insulation：It is the polyimides of 0.05mm that flexible insulating film uses thickness
Film, is cleaned to flexible insulating film with alcohol and deionized water and is dried up with compressed air first；Using Ultra-Violet Laser mark
Machine processes micro- open-work array, technological parameter on flexible insulating film：Speed：10mm/s, laser effective power：3W, frequency：
20KHz；
Step 1.3, mask electrochemical micromachining prepares ordered micro structure：By Surface Machining, micro-structural open-work array is soft
Property film is fitted in material surface to be processed as film is sheltered, and enters line mask electrochemical micromachining；Electrolyte is 10%NaNO3With
The mixture of 20%NaCl, current density 15A/dm2, voltage 2V, electrode gap 10mm；Electrolytic process is strengthened by ultrasonic agitation
Mass transfer, ultrasonic agitation parameter is：Supersonic frequency 20KHz, ultrasonic power 30W, work surface immersion electrolyte depth 3mm,
Processing obtains the orderly micrometer structure in metal surface；
Step 2, the surface that the metallic substrates of orderly micrometer structure array are prepared on surface uses ultrasonic wave added anodic oxygen
Metaplasia is into two grades of coarse structures of concrete dynamic modulus；
The metallic substrates that orderly micrometer structure has been made with surface are dissolving anode, are processed under without mask conditions,
Adjusting and optimizing ultrasound parameter carries out secondary process simultaneously；Electrolytic parameter is：Electrolyte 5%NaNO3With the mixture of 30%NaCl,
Current density 10A/dm2, voltage 3V, electrode gap 40mm；Ultrasound parameter is：Supersonic frequency is 40KHz, and ultrasonic power is
300W, work surface immersion electrolyte depth 20mm, two grades of coarse structures of concrete dynamic modulus are generated in whole metal substrate surface；
Step 3, by absolute ethyl alcohol, triethoxy (the trifluoro octyl group of -1H, 1H, 2H, 2H- ten) silane and nano silicon
Silicon fluoride nano-particle suspension is mixed to get as hydrophobic coating；Wherein absolute ethyl alcohol, triethoxy (- 1H, 1H, 2H, 2H-
Ten trifluoro octyl groups) mass ratio of silane and nano silicon is 100：1.5：10；
Step 4, the prepared Metal Substrate with multistage micro-rough structure is sprayed to by hydrophobic coating prepared by step 3
Basal surface, solvent volatilizees 10min naturally, 150 DEG C of baking 20min, that is, obtain super-hydrophobic metal surface.
Embodiment 2
Step 1, orderly micrometer structure array is prepared by mask electrochemical micromachining in metal substrate surface；
Detailed process is：
Step 1.1, metallic substrates treatment：Metal substrate surface is processed by shot blasting with sand paper, makes metallic substrates coarse
Degree Ra≤0.3, is then cleaned with acetone, alcohol and deionized water successively, is dried after being dried up with nitrogen stand-by；
Film preparation is sheltered in step 1.2, patterned flex insulation：It is the polyimides of 0.1mm that flexible insulating film uses thickness
Film, is cleaned to flexible insulating film with alcohol and deionized water and is dried up with compressed air first；Using Ultra-Violet Laser mark
Machine processes micro- open-work array, technological parameter on flexible insulating film：Speed：20mm/s, laser effective power：2W, frequency：
20KHz；
Step 1.3, mask electrochemical micromachining prepares ordered micro structure：By Surface Machining, micro-structural open-work array is soft
Property film is fitted in material surface to be processed as film is sheltered, and enters line mask electrochemical micromachining；Electrolyte is 5%NaNO3With
The mixture of 30%NaCl, current density 5A/dm2, voltage 1V, electrode gap 20mm；Electrolytic process is strengthened by ultrasonic agitation
Mass transfer, ultrasonic agitation parameter is：Supersonic frequency 20KHz, ultrasonic power 40W, work surface immersion electrolyte depth 5mm,
Processing obtains the orderly micrometer structure in metal surface；
Step 2, the surface that the metallic substrates of orderly micrometer structure array are prepared on surface uses ultrasonic wave added anodic oxygen
Metaplasia is into two grades of coarse structures of concrete dynamic modulus；
The metallic substrates that orderly micrometer structure has been made with surface are dissolving anode, are processed under without mask conditions,
Adjusting and optimizing ultrasound parameter carries out secondary process simultaneously；Electrolytic parameter is：Electrolyte 20%NaNO3With the mixing of 10%NaCl
Thing, current density 30A/dm2, voltage 6V, electrode gap 30mm；Ultrasound parameter is：Supersonic frequency is 40KHz, and ultrasonic power is
200W, work surface immersion electrolyte depth 15mm, two grades of coarse structures of concrete dynamic modulus are generated in whole metal substrate surface；
Step 3, by absolute ethyl alcohol, triethoxy (the trifluoro octyl group of -1H, 1H, 2H, 2H- ten) silane and nano silicon
Silicon fluoride nano-particle suspension is mixed to get as hydrophobic coating；Wherein absolute ethyl alcohol, triethoxy (- 1H, 1H, 2H, 2H-
Ten trifluoro octyl groups) mass ratio of silane and nano silicon is 100：0.5：5；
Step 4, the prepared Metal Substrate with multistage micro-rough structure is sprayed to by hydrophobic coating prepared by step 3
Basal surface, solvent volatilizees 10min naturally, 150 DEG C of baking 10min, that is, obtain super-hydrophobic metal surface.
Embodiment 3
Step 1, orderly micrometer structure array is prepared by mask electrochemical micromachining in metal substrate surface；
Detailed process is：
Step 1.1, metallic substrates treatment：Metal substrate surface is processed by shot blasting with sand paper, makes metallic substrates coarse
Degree Ra≤0.3, is then cleaned with acetone, alcohol and deionized water successively, is dried after being dried up with nitrogen stand-by；
Film preparation is sheltered in step 1.2, patterned flex insulation：It is the polyimides of 0.15mm that flexible insulating film uses thickness
Film, is cleaned to flexible insulating film with alcohol and deionized water and is dried up with compressed air first；Using Ultra-Violet Laser mark
Machine processes micro- open-work array, technological parameter on flexible insulating film：Speed：30mm/s, laser effective power：1W, frequency：
20KHz；
Step 1.3, mask electrochemical micromachining prepares ordered micro structure：By Surface Machining, micro-structural open-work array is soft
Property film is fitted in material surface to be processed as film is sheltered, and enters line mask electrochemical micromachining；Electrolyte is 20%NaNO3With
The mixture of 5%NaCl, current density 20A/dm2, voltage 3.5V, electrode gap 50mm；Strengthened by ultrasonic agitation and be electrolysed
The mass transfer of journey, ultrasonic agitation parameter is：Supersonic frequency 20KHz, ultrasonic power 50W, work surface immersion electrolyte depth
4mm, processing obtain the orderly micrometer structure in metal surface；
Step 2, the surface that the metallic substrates of orderly micrometer structure array are prepared on surface uses ultrasonic wave added anodic oxygen
Metaplasia is into two grades of coarse structures of concrete dynamic modulus；
The metallic substrates that orderly micrometer structure has been made with surface are dissolving anode, are processed under without mask conditions,
Adjusting and optimizing ultrasound parameter carries out secondary process simultaneously；Electrolytic parameter is：Electrolyte 30%NaNO3With the mixture of 5%NaCl,
Current density 20A/dm2, voltage 8V, electrode gap 15mm；Ultrasound parameter is：Supersonic frequency is 40KHz, and ultrasonic power is
100W, work surface immersion electrolyte depth 30mm, two grades of coarse structures of concrete dynamic modulus are generated in whole metal substrate surface；
Step 3, by absolute ethyl alcohol, triethoxy (the trifluoro octyl group of -1H, 1H, 2H, 2H- ten) silane and nano silicon
Silicon fluoride nano-particle suspension is mixed to get as hydrophobic coating；Wherein absolute ethyl alcohol, triethoxy (- 1H, 1H, 2H, 2H-
Ten trifluoro octyl groups) mass ratio of silane and nano silicon is 100：0.8：9；
Step 4, the prepared Metal Substrate with multistage micro-rough structure is sprayed to by hydrophobic coating prepared by step 3
Basal surface, solvent volatilizees 10min naturally, 150 DEG C of baking 30min, that is, obtain super-hydrophobic metal surface.
Embodiment 4
Step 1, orderly micrometer structure array is prepared by mask electrochemical micromachining in metal substrate surface；
Detailed process is：
Step 1.1, metallic substrates treatment：Metal substrate surface is processed by shot blasting with sand paper, makes metallic substrates coarse
Degree Ra≤0.3, is then cleaned with acetone, alcohol and deionized water successively, is dried after being dried up with nitrogen stand-by；
Film preparation is sheltered in step 1.2, patterned flex insulation：It is the polyimides of 0.2mm that flexible insulating film uses thickness
Film, is cleaned to flexible insulating film with alcohol and deionized water and is dried up with compressed air first；Using Ultra-Violet Laser mark
Machine processes micro- open-work array, technological parameter on flexible insulating film：Speed：15mm/s, laser effective power：2.5W, frequency：
20KHz；
Step 1.3, mask electrochemical micromachining prepares ordered micro structure：By Surface Machining, micro-structural open-work array is soft
Property film is fitted in material surface to be processed as film is sheltered, and enters line mask electrochemical micromachining；Electrolyte is 30%NaNO3With
The mixture of 10%NaCl, current density 10A/dm2, voltage 5V, electrode gap 40mm；Electrolytic process is strengthened by ultrasonic agitation
Mass transfer, ultrasonic agitation parameter is：Supersonic frequency 20KHz, ultrasonic power 60W, work surface immersion electrolyte depth 1mm,
Processing obtains the orderly micrometer structure in metal surface；
Step 2, the surface that the metallic substrates of orderly micrometer structure array are prepared on surface uses ultrasonic wave added anodic oxygen
Metaplasia is into two grades of coarse structures of concrete dynamic modulus；
The metallic substrates that orderly micrometer structure has been made with surface are dissolving anode, are processed under without mask conditions,
Adjusting and optimizing ultrasound parameter carries out secondary process simultaneously；Electrolytic parameter is：Electrolyte 10%NaNO3With the mixing of 20%NaCl
Thing, current density 50A/dm2, voltage 10V, electrode gap 5mm；Ultrasound parameter is：Supersonic frequency is 40KHz, and ultrasonic power is
150W, work surface immersion electrolyte depth 5mm, two grades of coarse structures of concrete dynamic modulus are generated in whole metal substrate surface；
Step 3, by absolute ethyl alcohol, triethoxy (the trifluoro octyl group of -1H, 1H, 2H, 2H- ten) silane and nano silicon
Silicon fluoride nano-particle suspension is mixed to get as hydrophobic coating；Wherein absolute ethyl alcohol, triethoxy (- 1H, 1H, 2H, 2H-
Ten trifluoro octyl groups) mass ratio of silane and nano silicon is 100：2：15；
Step 4, the prepared Metal Substrate with multistage micro-rough structure is sprayed to by hydrophobic coating prepared by step 3
Basal surface, solvent volatilizees 10min naturally, 150 DEG C of baking 18min, that is, obtain super-hydrophobic metal surface.
Claims (7)
1. a kind of preparation method of wear-resisting super-hydrophobic metal surface, it is characterised in that specifically implement according to following steps：
Step 1, orderly micrometer structure array is prepared by mask electrochemical micromachining in metal substrate surface；
Step 2, the surface that the metallic substrates of orderly micrometer structure array are prepared on surface uses ultrasonic wave added anodic oxygen metaplasia
Into two grades of coarse structures of concrete dynamic modulus；
Step 3, two grades of coarse structure surfaces of concrete dynamic modulus that step 2 is obtained are sprayed to by hydrophobic coating, and solvent volatilizees, dries naturally
It is roasting, obtain wear-resisting super-hydrophobic metal surface.
2. the preparation method of wear-resisting super-hydrophobic metal surface according to claim 1, it is characterised in that
The detailed process of step 1 is：
Step 1.1, metallic substrates treatment：Metal substrate surface is processed by shot blasting with sand paper, makes metallic substrates roughness Ra
≤ 0.3, then cleaned with acetone, alcohol and deionized water successively, dried after being dried up with nitrogen stand-by；
Film preparation is sheltered in step 1.2, patterned flex insulation：Flexible insulating film is cleaned with alcohol and deionized water first
And dried up with compressed air；Micro- open-work array, technological parameter are processed on flexible insulating film using Ultra-Violet Laser marking machine：Speed
Degree：10~30mm/s, laser effective power：1~3W, frequency：20KHz；
Step 1.3, mask electrochemical micromachining prepares ordered micro structure：The flexible membrane of micro-structural open-work array by Surface Machining
As film is sheltered, material surface to be processed is fitted in, enters line mask electrochemical micromachining；Electrolyte is 5~30%NaNO3With 5
The mixture of~30%NaCl, 5~20A/dm of current density2, 1~5V of voltage, 10~50mm of electrode gap；Stirred by ultrasound
Mix, process and obtain the orderly micrometer structure in metal surface.
3. the preparation method of wear-resisting super-hydrophobic metal surface according to claim 2, it is characterised in that soft in step 1.2
It is the polyimide film of 0.05~0.2mm that property dielectric film uses thickness.
4. the preparation method of the wear-resisting super-hydrophobic metal surface according to Claims 2 or 3, it is characterised in that in step 1.3
Ultrasonic agitation parameter is：Supersonic frequency 20KHz, 30~60W of ultrasonic power, 1~5mm of work surface immersion electrolyte depth.
5. the preparation method of wear-resisting super-hydrophobic metal surface according to claim 1, it is characterised in that porous in step 2
Two grades of preparations of coarse structure of gap：The metallic substrates that orderly micrometer structure has been made with surface are dissolving anode, without mask strip
It is processed under part, while adjusting and optimizing ultrasound parameter carries out secondary process；Electrolytic parameter is：5~30%NaNO of electrolyte3With
The mixture of 5~30%NaCl, 10~50A/dm of current density2, 3~10V of voltage, 5~40mm of electrode gap；Ultrasound parameter
For：Supersonic frequency is 40KHz, and ultrasonic power is 100~300W, work surface immersion electrolyte 5~30mm of depth, whole
Metal substrate surface generates two grades of coarse structures of concrete dynamic modulus.
6. the preparation method of wear-resisting super-hydrophobic metal surface according to claim 1, it is characterised in that the specific mistake of step 3
Cheng Wei：
It is prepared by step 3.1, hydrophobic coating：By absolute ethyl alcohol, triethoxy (the trifluoro octyl group of -1H, 1H, 2H, 2H- ten) silane and receive
Rice silica is mixed to get silicon fluoride nano-particle suspension as hydrophobic coating；
Step 3.2, the hydrophobic coating of preparation is sprayed to prepared with multistage micro-rough body structure surface, and solvent is waved naturally
Hair 10min, 150 DEG C of 10~30min of baking, that is, obtain super-hydrophobic metal surface.
7. the preparation method of wear-resisting super-hydrophobic metal surface according to claim 6, it is characterised in that nothing in step 3.1
The mass ratio of water-ethanol, triethoxy (the trifluoro octyl group of -1H, 1H, 2H, 2H- ten) silane and nano silicon is 100：0.5~
2：5~15.
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