CN103084323A - Bionic construction of super-amphiphobic materials based on metal foam - Google Patents
Bionic construction of super-amphiphobic materials based on metal foam Download PDFInfo
- Publication number
- CN103084323A CN103084323A CN2013100312441A CN201310031244A CN103084323A CN 103084323 A CN103084323 A CN 103084323A CN 2013100312441 A CN2013100312441 A CN 2013100312441A CN 201310031244 A CN201310031244 A CN 201310031244A CN 103084323 A CN103084323 A CN 103084323A
- Authority
- CN
- China
- Prior art keywords
- metal foam
- super
- nickel metal
- vacuum desiccator
- take out
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Powder Metallurgy (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses bionic construction of super-amphiphobic materials based on metal foam, and belongs to the technical field of function materials. The bionic construction comprises the steps that the metal foam is pretreated, carbon granule is burnt and deposited by the metal foam above a paraffin wax flame, the metal foam is placed in a vacuum device to be adhered to silicon oxide, the metal foam is placed into a muffle furnace to anneal, and the metal foam after annealing is fluorizated through poly-perfluoroalkyl siloxanem, and the surface of obtained metal foam has super-amphiphobic performance. Super-amphiphobic performance of the surface to water solutions with the value of potential of hydrogen (pH) of 0-14 and various oil drops is achieved, the contact angle to water is larger than 170 degrees, and the rolling angle is smaller than 1 degree. The contact angles to lubricating oil, edible oil, crude oil and other oil drops are all larger than 150 degrees, and rolling angles are commonly smaller than 10 degrees. The super-amphiphobic material based on the metal foam and prepared through the method has high stability, stable performance can be kept within a plurality of months, and the super-amphiphobic materials can be widely applied to scientific research, medical science, biology and other important fields.
Description
Technical field
The invention belongs to technical field of function materials, be specifically related to bionical a kind of super two thin materials based on metal foam of constructing, produce on metal foam surface and a kind of water and the different pH value aqueous solution and edible oil, lubricating oil, former wet goods oils liquid are had the preparation method of ultraphobic surface, solved the high technical problem of existing preparation super-double-hydrophobic surface cost.
Background technology
The special wellability on surface is a key property of the surface of solids, affects the infiltrating factor of the surface of solids and mainly contains two: the one, and surface chemical composition (surface free energy), the 2nd, surface microstructure (roughness).Along with the further investigation of people to the special wellability of occurring in nature surface, the preparation method on relevant special wellability surface continues to bring out.The preparation of super hydrophobic surface in recent years receives increasing concern, and a lot of documents has also reported to prepare by diverse ways to have special infiltrating surface.Accounted for great majority about super-hydrophobic document in these documents, the report of relevant super oleophobic surface seldom.Super-double-hydrophobic surface refers to water and oily contact angle all greater than the surface of 150 °, and this super two surfaces of dredging for the automatically cleaning under oil pollution environment, remove aquatic organism dirt etc., are all useful.Metal foam is through the high-tech deep processing, and metal is made the foam sponge shape, has best three-dimensional full meshing pore structure.Metallic framework hollow and with metallurgical state commissure each other, volume density is only 1/50th of metal, and specific area is very big, still keeps the good physicochemical property of metal, thereby the excellent specific property of brand new makes it to become the functional form new material, has comparatively broad application.
Porous foam metal material is actually the composite of metal and gas, just because of this special structure, make it the characteristic of existing metal, Bubble Characteristics is arranged again, as little in proportion, specific area is large, energy absorption good, thermal conductivity is low, permeability is excellent, the electro-magnetic wave absorption performance is good, the heat exchange heat-sinking capability is high, can regenerate, processability is good etc.Therefore, as a kind of new material, based on its superior performance, bionical super two thin materials of constructing based on metal foam have widely than common metal in aeronautical and space technology and use.
Summary of the invention
For problems of the prior art, the invention provides a kind of super two thin materials based on metal foam, adopt bionical construction method, be used for realizing the hydrophobic oleophobic performance on metal foam surface, this bionical construction method flow process is simple, and two thin property are strong, and preparation cost is low, it is convenient to implement, and can carry out large-scale promotion.Super two thin materials based on metal foam of the present invention have character super-hydrophobic in air, super oleophobic simultaneously, to edible oil, lubricating oil, former wet goods at its surface contact angle 150 °, and have the low characteristic that adheres to of oil droplet.Super two thin materials based on metal foam of the present invention can be applicable to navigation, space flight, and pipeline transportation and other many fields also have important purposes in daily life.
Bionical super two thin materials of constructing based on metal foam that the present invention proposes specifically comprise following several step:
1, metal foam pretreatment: get a beaker, pour deionized water into, metal foam is immersed in deionized water, beaker is put into the Vltrasonic device ultrasonic cleaning, pour out cleaning fluid, pour absolute ethyl alcohol into beaker, continue ultrasonic cleaning, after taking out oven dry, be placed in dilute nitric acid solution and slightly corrode, the taking-up post-drying is standby;
2, the metal foam of handling well in step (1) is placed in paraffin flame top and burns, along with adhering to of carbon granule, moving metal foam slowly is until be covered with in whole metal foam surface and metal foam hole.
3, will be placed in vacuum desiccator through the metal foam of processing in (2), and place respectively a certain amount of tetraethoxysilane and ammoniacal liquor in vacuum desiccator, and then vacuumize a period of time, vacuum is taken out standby more than placing 24h.
4, with the metal foam of handling well in step (3), be placed in Muffle furnace, burn 2h under 600 ℃, take out standby;
5, the metal foam that will process through step (4) is placed in vacuum desiccator again, places a certain amount of silicon fluoride, vacuumizes and fluoridizes, more than vacuum is placed 12h.
6, through after 12h, take out the silicon fluoride of placing in step (5), metal foam continues to be placed in drier more than 24h, takes out afterwards, obtains the super two thin materials based on metal foam of the present invention.
The invention has the advantages that:
1, bionical super two thin materials of constructing based on metal foam of the present invention's proposition, its preparation method is simple, and raw material is easy to get, and cost is low.
2, the super two thin materials based on metal foam that propose of the present invention, this metal foam surface greater than 170 °, and hang down adhesion to the contact angle of water.
3, the super two thin materials based on metal foam that propose of the present invention, this metal foam surface greater than 150 °, and hang down adhesion to the contact angle of oil.
4, the super two thin materials based on metal foam of the present invention's proposition, this metal foam is pollution-free, can be recycled.
5, the super two thin materials based on metal foam of the present invention's proposition, can reach antifouling corrosion-resistant effect.
6, the super two thin materials based on metal foam of the present invention's proposition, the surface has self-cleaning function.
Description of drawings
Fig. 1: the bionical method flow diagram of constructing based on super two thin materials of metal foam of the present invention;
Fig. 2: the low power electromicroscopic photograph (SEM) that does not adopt the metal foam that the inventive method processes;
Fig. 3: the high power electromicroscopic photograph (SEM) that does not adopt the metal foam that the inventive method processes;
Fig. 4: the surperficial low power electromicroscopic photograph (SEM) of the metal foam that obtains after adopting the inventive method to process;
Fig. 5: the surperficial high power electromicroscopic photograph (SEM) of the metal foam that obtains after adopting the inventive method to process.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Bionical super two thin materials of constructing based on metal foam that the present invention proposes, as shown in Figure 1, the method comprises following step:
The first step, the metal foam pretreatment: get a beaker, pour deionized water into, metal foam is immersed in deionized water,, beaker is put into Vltrasonic device ultrasonic cleaning 20 ~ 40min, with the spot of clean metal foam surface; Pour out cleaning fluid, absolute ethyl alcohol (is analyzed alcohol, ethanol mass fraction 〉=99.7%) pour beaker into, continue ultrasonic cleaning metal foam 20 ~ 60min, slough the grease on metal foam, after taking out oven dry (60 ~ 90 ℃ of oven temperatures), the rare nitric acid that is placed in 0.5～1mol/L corrodes 20～120min, and taking-up post-drying (60 ~ 90 ℃ of oven temperatures) is stand-by;
Described metal foam can adopt per inch mesh number (PPI) be 70 ~ 110 nickel metal foam,, copper nickel metal foam, aluminum metal foam, ferrous metal foam etc., preferred PPI is 110 nickel metal foam.
Second step, the metal foam of handling well in the first step simultaneously is placed in the top calcination of paraffin flame, 11 ~ 20s is burnt in each position, the carbon granule that can adhere to one deck 25 ~ 40nm black, along with adhering to of carbon granule, moving metal foam slowly is until carbon granule is covered with in whole metal foam surface and metal foam hole.
The 3rd step, to be placed in through the metal foam of processing in second step vacuum desiccator under room temperature, place respectively the preferred 2mL of 1 ~ 3mL(in vacuum desiccator) volume ratio be tetraethoxysilane and the ammoniacal liquor of 1:5 ~ 1:2, then vacuumize 15 ~ 30min, more than vacuum is placed 24h, make the tetraethoxysilane vapour deposition on the metal foam surface, take out standby.
In the 4th step, the metal foam with handling well in the 3rd step is placed in Muffle furnace, at 600 ~ 1000 ℃ (the preferred 600 ℃) lower 2 ~ h (preferred 2h) that burns, takes out standby;
The 5th step will under room temperature, be placed in vacuum desiccator again through the 4th metal foam processed of step, place the preferred 0.1mL of 0.05 ~ 0.3mL(in vacuum desiccator) poly-perfluoroalkyl siloxanes (CF
3(CF
2)
7CH
2CH
2Si (OCH
3)
3), vacuumizing 15 ~ 30min, more than vacuum was placed 12h, general 12～24h got final product.Make poly-perfluoroalkyl siloxanes vapour deposition on the metal foam surface.
The 6th step, take out the poly-perfluoroalkyl siloxanes of placing in the 5th step in vacuum desiccator, at room temperature, metal foam continues to be placed in vacuum desiccator more than 24h, takes out afterwards, finally obtains the super two thin materials based on metal foam.
Adopt the bionical super two thin materials based on metal foam of constructing of the present invention, to the static contact angle numerical value of different PH (PH the is 0-14) aqueous solution all greater than 170 °, roll angle is less than 1 ℃, to the static contact angle numerical value of edible oil all greater than 150 °, generally all less than 10 °, resistance to acids and bases is strong for roll angle.
Embodiment one
Use bionical super two thin materials of constructing based on metal foam that the present invention proposes, select the nickel metal foam, its method comprises following step:
(1) nickel metal foam surface preparation: get one, 100ml beaker, pour deionized water into standby.Be that (10mm * 20mm * 1mm) immerse in deionized water puts into the excusing from death cleaning machine with beaker and cleans 20min, recovery and rinsing liquid for 70 nickel metal foam with PPI.Absolute ethyl alcohol (analyzing alcohol, ethanol mass fraction 〉=99.7%) is poured in beaker, continued ultrasonic cleaning 20min, take out the nickel metal foam, insert in 60 ℃ of baking ovens and dry, take out in the dilute nitric acid solution that is placed on 0.5mol/L and corrode 120min, put into 60 ℃ of baking ovens after taking-up and dry.
(2) the nickel metal foam of handling well in step (1) simultaneously is placed in the top calcination of paraffin flame, 11s is burnt in each position, the carbon granule that can adhere to one deck 25 ~ 40nm black, along with adhering to of carbon granule, mobile nickel metal foam slowly is until be covered with in whole metal foam surface and metal foam hole.
(3) will be placed in vacuum desiccator under room temperature through the nickel metal foam of processing in step (2), place respectively the tetraethoxysilane of 1mL and the ammoniacal liquor of 5mL in vacuum desiccator, then vacuumize 15min, vacuum is placed 24h, make the tetraethoxysilane vapour deposition on nickel metal foam surface, take out standby.
(4) with the nickel metal foam of handling well in step (3), be placed in Muffle furnace, burn 2h under 600 ℃, take out standby.
(5) the nickel metal foam that will process through step (4), again be placed in vacuum desiccator under room temperature, place 0.05mL poly-perfluoroalkyl siloxanes, vacuumize 15min, make poly-perfluoroalkyl siloxanes vapour deposition on nickel metal foam surface, vacuum is placed 12h.
(6) through after 12h, take out the poly-perfluoroalkyl siloxanes of placing in step (5) in vacuum desiccator, at room temperature, the nickel metal foam continues to be placed on 24h in vacuum desiccator, take out afterwards, namely obtain the super two thin materials based on the nickel metal foam, realized the preparation on super two thin nickel metal foams surface.
The above-mentioned super two thin materials based on the nickel metal foam that prepare, (as Fig. 2 and Fig. 3) compares with the nickel metal foam that does not adopt the inventive method to process, and obvious micro-nano structure (as Fig. 4 and Fig. 5) has appearred in nickel metal foam after treatment.Not adopting nickel metal foam that the inventive method processes is 85 ° to the contact angle of water, be 170 ° and adopt nickel metal foam that method of the present invention processes to the contact angle of water, and adopt nickel metal foam that method of the present invention processes to the contact angle of oil greater than 150 °.
Embodiment two
Use bionical super two thin materials of constructing based on metal foam that the present invention proposes, select the nickel metal foam, its method comprises following step:
(1) nickel metal foam pretreatment: get one, 100ml beaker, pour deionized water into standby.Be that (20mm * 20mm * 2mm) immerse in deionized water puts into the excusing from death cleaning machine with beaker and cleans 30min, recovery and rinsing liquid for 80 nickel metal foam with PPI.Absolute ethyl alcohol (analyzing alcohol, ethanol mass fraction 〉=99.7%) is poured in beaker, continued ultrasonic cleaning 40min, take out the nickel metal foam, insert in 70 ℃ of baking ovens and dry, take out in the dilute nitric acid solution that is placed on 0.75mol/L and corrode 60min, put into 70 ℃ of baking ovens after taking-up and dry.
(2) the nickel metal foam of handling well in step (1) simultaneously is placed in the top calcination of paraffin flame, 15s is burnt in each position, the carbon granule that can adhere to one deck 25 ~ 40nm black, along with adhering to of carbon granule, mobile nickel metal foam slowly is until be covered with in whole nickel metal foam surface and metal foam hole.
(3) will be placed in vacuum desiccator under room temperature through the nickel metal foam of processing in step (2), place respectively tetraethoxysilane and the 8mL ammoniacal liquor of 2mL in vacuum desiccator, then vacuumize 20min, vacuum is placed 36h, make the tetraethoxysilane vapour deposition on nickel metal foam surface, take out standby.
(4) with the nickel metal foam of handling well in step (3), be placed in Muffle furnace, burn 3h under 800 ℃, take out standby.
(5) the nickel metal foam that will process through step (4), again be placed in vacuum desiccator under room temperature, place 0.1mL poly-perfluoroalkyl siloxanes, vacuumize 20min, make poly-perfluoroalkyl siloxanes vapour deposition on nickel metal foam surface, vacuum is placed 18h.
(6) through after 18h, take out the poly-perfluoroalkyl siloxanes of placing in step (5), at room temperature, the nickel metal foam continues to be placed on 36h in drier, take out afterwards, namely obtain the super two thin materials based on the nickel metal foam, realized the preparation on super two thin nickel metal foams surface.
Above-mentioned prepare based on super two thin materials of metal foam to the static contact angle numerical value of the different PH aqueous solution all greater than 170 °, all greater than 150 °, resistance to acids and bases is strong to the static contact angle numerical value of edible oil.
Embodiment three
Use bionical super two thin materials of constructing based on metal foam that the present invention proposes, select the nickel metal foam, its method comprises following step:
(1) nickel metal foam pretreatment: get one, 100ml beaker, pour deionized water into standby.Be that (20mm * 30mm * 3mm) immerse in deionized water puts into the excusing from death cleaning machine with beaker and cleans 40min, recovery and rinsing liquid for 90 nickel metal foam with PPI.Absolute ethyl alcohol (analyzing alcohol, ethanol mass fraction 〉=99.7%) is poured in beaker, continued ultrasonic cleaning 60min, take out the nickel metal foam, insert in 90 ℃ of baking ovens and dry, take out in the dilute nitric acid solution that is placed on 1mol/L and corrode 30min, put into 90 ℃ of baking ovens after taking-up and dry.
(2) the nickel metal foam of handling well in step (1) simultaneously is placed in the top calcination of paraffin flame, 20s is burnt in each position, the carbon granule that can adhere to one deck 25 ~ 40nm black, along with adhering to of carbon granule, mobile nickel metal foam slowly is until be covered with in whole nickel metal foam surface and metal foam hole.
(3) will be placed in vacuum desiccator under room temperature through the nickel metal foam of processing in step (2), place respectively the tetraethoxysilane of 3mL and the ammoniacal liquor of 9mL in vacuum desiccator, then vacuumize 25min, vacuum is placed 48h, make the tetraethoxysilane vapour deposition on nickel metal foam surface, take out standby.
(4) with the nickel metal foam of handling well in step (3), be placed in Muffle furnace, burn 4h under 1000 ℃, take out standby.
(5) the nickel metal foam that will process through step (4), again be placed in vacuum desiccator under room temperature, place 0.3mL poly-perfluoroalkyl siloxanes, vacuumize 25min, make poly-perfluoroalkyl siloxanes vapour deposition on nickel metal foam surface, vacuum is placed 24h.
(6) through after 24h, take out the poly-perfluoroalkyl siloxanes of placing in step (5), at room temperature the nickel metal foam continues to be placed on 48h in drier, takes out afterwards, namely obtain the super two thin materials based on the nickel metal foam, realized the preparation on super two thin nickel metal foams surface.
Above-mentioned prepare based on super two thin materials of metal foam to the static contact angle numerical value of the different PH aqueous solution all greater than 170 °, all greater than 150 °, resistance to acids and bases is strong to the static contact angle numerical value of edible oil.
Embodiment four
Use bionical super two thin materials of constructing based on metal foam that the present invention proposes, select the nickel metal foam, its method comprises following step:
(1) nickel metal foam pretreatment: get one, 100ml beaker, pour deionized water into standby.Be that (10mm * 20mm * 5mm) immerse in deionized water puts into the excusing from death cleaning machine with beaker and cleans 40min, recovery and rinsing liquid for 110 nickel metal foam with PPI.Absolute ethyl alcohol (analyzing alcohol, ethanol mass fraction 〉=99.7%) is poured in beaker, continued ultrasonic cleaning 20min, take out the nickel metal foam, insert in 60 ℃ of baking ovens and dry, take out in the dilute nitric acid solution that is placed on 1mol/L and corrode 20min, put into 60 ℃ of baking ovens after taking-up and dry.
(2) the nickel metal foam of handling well in step (1) simultaneously is placed in the top calcination of paraffin flame, 20s is burnt in each position, the carbon granule that can adhere to one deck 25 ~ 40nm black, along with adhering to of carbon granule, mobile nickel metal foam slowly is until be covered with in whole nickel metal foam surface and metal foam hole.
(3) will be placed in vacuum desiccator under room temperature through the nickel metal foam of processing in step (2), place respectively the tetraethoxysilane of 1mL and the ammoniacal liquor of 2mL in vacuum desiccator, then vacuumize 30min, vacuum is placed 24h, make the tetraethoxysilane vapour deposition on nickel metal foam surface, take out standby.
(4) with the nickel metal foam of handling well in step (3), be placed in Muffle furnace, burn 2h under 600 ℃, take out standby.
(5) the nickel metal foam that will process through step (4), again be placed in vacuum desiccator, place 0.1mL poly-perfluoroalkyl siloxanes, vacuumize 30min, make poly-perfluoroalkyl siloxanes vapour deposition on nickel metal foam surface, vacuum is placed 12h.
(6) through after 12h, take out the poly-perfluoroalkyl siloxanes of placing in step (5), at room temperature, the nickel metal foam continues to be placed on 24h in drier, take out afterwards, namely obtain the super two thin materials based on the nickel metal foam, realized the preparation on super two thin nickel metal foams surface.
Above-mentioned what prepare is 171 ° based on super two thin materials of metal foam to the static contact angle of the different PH aqueous solution, and all greater than 150 °, resistance to acids and bases is strong to the static contact angle numerical value of edible oil.
Embodiment five
Use bionical super two thin materials of constructing based on metal foam that the present invention proposes, select copper nickel metal foam, its method comprises following step:
(1) copper nickel metal foam pretreatment: get one, 100ml beaker, pour deionized water into standby.Be that (10mm * 20mm * 1mm) immerse in deionized water puts into the excusing from death cleaning machine with beaker and cleans 20min, recovery and rinsing liquid for 100 copper nickel metal foam with PPI.Absolute ethyl alcohol (analyzing alcohol, ethanol mass fraction 〉=99.7%) is poured in beaker, continued ultrasonic cleaning 20min, take out copper nickel metal foam, insert in 60 ℃ of baking ovens and dry, take out in the dilute nitric acid solution that is placed on 0.5mol/L and corrode 60min, put into 60 ℃ of baking ovens after taking-up and dry.
(2) the copper nickel metal foam of handling well in step (1) simultaneously is placed in the top calcination of paraffin flame, 15s is burnt in each position, the carbon granule that can adhere to one deck 25 ~ 40nm black, along with adhering to of carbon granule, mobile copper nickel metal foam slowly is until be covered with in whole copper nickel metal foam surface and metal foam hole.
(3) will be placed in vacuum desiccator under room temperature through the copper nickel metal foam of processing in step (2), place respectively the tetraethoxysilane of 1mL and the ammoniacal liquor of 2mL in vacuum desiccator, then vacuumize 20min, vacuum is placed 24h, make the tetraethoxysilane vapour deposition on copper nickel metal foam surface, take out standby.
(4) with the copper nickel metal foam of handling well in step (3), be placed in Muffle furnace, burn 2h under 600 ℃, take out standby.
(5) the copper nickel metal foam that will process through step (4), again be placed in vacuum desiccator under room temperature, place 0.05mL poly-perfluoroalkyl siloxanes, vacuumize 20min, make poly-perfluoroalkyl siloxanes vapour deposition on copper nickel metal foam surface, vacuum is placed 12h.
(6) through after 12h, take out the poly-perfluoroalkyl siloxanes of placing in step (5), at room temperature, copper nickel metal foam continues to be placed on 24h in drier, take out afterwards, namely obtain the super two thin materials based on copper nickel metal foam, realized the preparation on super two thin copper nickel metal foams surface.
Embodiment six
Use bionical super two thin materials of constructing based on metal foam that the present invention proposes, selection PPI is 100 aluminum metal foam, and its method comprises following step:
(1) aluminum metal foam pretreatment: get one, 100ml beaker, pour deionized water into standby.(10mm * 20mm * 1mm) immerse in deionized water puts into the excusing from death cleaning machine with beaker and cleans 20min, recovery and rinsing liquid with the aluminum metal foam.Absolute ethyl alcohol (analyzing alcohol, ethanol mass fraction 〉=99.7%) is poured in beaker, continued ultrasonic cleaning 20min, take out the aluminum metal foam, insert in 60 ℃ of baking ovens and dry, take out in the dilute nitric acid solution that is placed on 0.5mol/L and corrode 60min, put into 60 ℃ of baking ovens after taking-up and dry.
(2) the aluminum metal foam of handling well in step (1) simultaneously is placed in the top calcination of paraffin flame, 15s is burnt in each position, the carbon granule that can adhere to one deck 25 ~ 40nm black, along with adhering to of carbon granule, mobile aluminum metal foam slowly is until be covered with in whole aluminum metal foam surface and metal foam hole.
(3) will be placed in vacuum desiccator under room temperature through the aluminum metal foam of processing in step (2), place respectively the tetraethoxysilane of 1mL and the ammoniacal liquor of 2mL in vacuum desiccator, then vacuumize 20min, vacuum is placed 24h, make the tetraethoxysilane vapour deposition at the aluminum metal foam surface, take out standby.
(4) with the aluminum metal foam of handling well in step (3), be placed in Muffle furnace, burn 2h under 600 ℃, take out standby.
(5) the aluminum metal foam that will process through step (4), again be placed in vacuum desiccator under room temperature, place 0.05mL poly-perfluoroalkyl siloxanes, vacuumize 20min, make poly-perfluoroalkyl siloxanes vapour deposition at the aluminum metal foam surface, vacuum is placed 12h.
(6) through after 12h, take out the poly-perfluoroalkyl siloxanes of placing in step (5), at room temperature, the aluminum metal foam continues to be placed on 24h in drier, take out afterwards, namely obtain the super two thin materials based on the aluminum metal foam, realized the preparation of super two thin aluminum metal foam surfaces.
Embodiment seven
Use bionical super two thin materials of constructing based on metal foam that the present invention proposes, select the ferrous metal foam, its method comprises following step:
(1) ferrous metal foam pretreatment: get one, 100ml beaker, pour deionized water into standby.Be that (10mm * 20mm * 1mm) immerse in deionized water puts into the excusing from death cleaning machine with beaker and cleans 20min, recovery and rinsing liquid for 100 ferrous metal foam with PPI.Absolute ethyl alcohol (analyzing alcohol, ethanol mass fraction 〉=99.7%) is poured in beaker, continued ultrasonic cleaning 20min, take out the ferrous metal foam, insert in 60 ℃ of baking ovens and dry, take out in the dilute nitric acid solution that is placed on 0.5mol/L and corrode 60min, put into 60 ℃ of baking ovens after taking-up and dry.
(2) the ferrous metal foam of handling well in step (1) simultaneously is placed in the top calcination of paraffin flame, 15s is burnt in each position, the carbon granule that can adhere to one deck 25 ~ 40nm black, along with adhering to of carbon granule, mobile ferrous metal foam slowly is until be covered with in whole ferrous metal foam surface and metal foam hole.
(3) will be placed in vacuum desiccator under room temperature through the ferrous metal foam of processing in step (2), place respectively the tetraethoxysilane of 1mL and the ammoniacal liquor of 2mL in vacuum desiccator, then vacuumize 20min, vacuum is placed 24h, make the tetraethoxysilane vapour deposition at the ferrous metal foam surface, take out standby.
(4) with the ferrous metal foam of handling well in step (3), be placed in Muffle furnace, burn 2h under 600 ℃, take out standby.
(5) the ferrous metal foam that will process through step (4), again be placed in vacuum desiccator under room temperature, place 0.05mL poly-perfluoroalkyl siloxanes, vacuumize 20min, make poly-perfluoroalkyl siloxanes vapour deposition at the ferrous metal foam surface, vacuum is placed 12h.
(6) through after 12h, take out the poly-perfluoroalkyl siloxanes of placing in step (5), at room temperature, the ferrous metal foam continues to be placed on 24h in drier, take out afterwards, namely obtain the super two thin materials based on the ferrous metal foam, realized the preparation of super two thin ferrous metal foam surfaces.
Claims (6)
1. bionical super two thin materials of constructing based on metal foam, it is characterized in that: described preparation method comprises following step:
The first step, the metal foam pretreatment; Described metal foam pretreatment is specially: first use the deionized water ultrasonic cleaning; Then use the absolute ethyl alcohol ultrasonic cleaning; Again clean with the dilute nitric acid solution corrosion;
Second step, the metal foam of handling well in the first step is simultaneously adhered to carbon granule to be specially: the sheet metal foam simultaneously is placed in the top calcination of paraffin flame, 11 ~ 20s is burnt in each position, the carbon granule that can adhere to one deck 25 ~ 40nm black, along with adhering to of carbon granule, the moving metal foam is until carbon granule is covered with in whole metal foam surface and hole thereof;
In the 3rd step, a side of adhering to carbon granule on metal foam continues the deposition tetraethoxysilane;
In the 4th step, the metal foam with handling well in the 3rd step is placed in Muffle furnace, burns 2 ~ 4h at 600 ~ 1000 ℃, takes out standby;
The 5th step will be placed in vacuum desiccator under room temperature again through the 4th metal foam processed of step, place poly-perfluoroalkyl siloxanes in vacuum desiccator, more than vacuum is placed 12h, make that to gather the vapour deposition of perfluoroalkyl siloxanes surperficial at metal foam;
The 6th step, take out the poly-perfluoroalkyl siloxanes of placing in the 5th step, at room temperature, metal foam continues to be placed in drier more than 24h, takes out afterwards, obtains the super two thin materials based on metal foam;
Described metal foam per inch mesh number is 70 ~ 110.
2. a kind of super two thin material preparation method based on metal foam according to claim 1, it is characterized in that: described corrosion is cleaned and is specially: the dilute nitric acid solution that metal foam is put into 0.5 ~ 1mol/L corrodes 20 ~ 120min, takes out stand-by after 60 ~ 90 ℃ of oven dry of temperature.
3. a kind of super two thin material preparation method based on metal foam according to claim 1, it is characterized in that: described the 3rd step is specially: more than metal foam is placed in vacuum desiccator placement 24h, make the tetraethoxysilane vapour deposition on the metal foam surface, take out standby; Be placed with respectively tetraethoxysilane and ammoniacal liquor that volume ratio is 1:5 ~ 1:2 in described vacuum desiccator.
4. a kind of super two thin material preparation method based on metal foam according to claim 1, is characterized in that: in described the 5th step, gather perfluoroalkyl siloxanes 0.05 ~ 0.3mL in vacuum desiccator.
5. bionical super two thin materials of constructing based on metal foam, it is characterized in that: adopt preparation method claimed in claim 1 to obtain, described super two thin materials based on metal foam to the static contact angle numerical value of the different PH aqueous solution all greater than 170 °, to the static contact angle numerical value of edible oil all greater than 150 °.
6. bionical super two thin materials of constructing based on metal foam according to claim 5, it is characterized in that: described super two thin material surfaces based on metal foam are the micro-nano structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100312441A CN103084323A (en) | 2013-01-28 | 2013-01-28 | Bionic construction of super-amphiphobic materials based on metal foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100312441A CN103084323A (en) | 2013-01-28 | 2013-01-28 | Bionic construction of super-amphiphobic materials based on metal foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103084323A true CN103084323A (en) | 2013-05-08 |
Family
ID=48197742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100312441A Pending CN103084323A (en) | 2013-01-28 | 2013-01-28 | Bionic construction of super-amphiphobic materials based on metal foam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103084323A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110078043A (en) * | 2019-04-01 | 2019-08-02 | 暨南大学 | A kind of three-dimensional carbon or three-dimensional carbon/grapheme foam and its preparation method and application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315483A (en) * | 2000-03-29 | 2001-10-03 | 中国科学院化学研究所 | Surface-treating agent with both super-hydrophobicity and super-oleophobicity and its application |
| US20080015298A1 (en) * | 2006-07-17 | 2008-01-17 | Mingna Xiong | Superhydrophobic coating composition and coated articles obtained therefrom |
| CN102888588A (en) * | 2012-09-20 | 2013-01-23 | 北京航空航天大学 | Preparation method for super-amphiphobic metal surface |
-
2013
- 2013-01-28 CN CN2013100312441A patent/CN103084323A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315483A (en) * | 2000-03-29 | 2001-10-03 | 中国科学院化学研究所 | Surface-treating agent with both super-hydrophobicity and super-oleophobicity and its application |
| US20080015298A1 (en) * | 2006-07-17 | 2008-01-17 | Mingna Xiong | Superhydrophobic coating composition and coated articles obtained therefrom |
| CN102888588A (en) * | 2012-09-20 | 2013-01-23 | 北京航空航天大学 | Preparation method for super-amphiphobic metal surface |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110078043A (en) * | 2019-04-01 | 2019-08-02 | 暨南大学 | A kind of three-dimensional carbon or three-dimensional carbon/grapheme foam and its preparation method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102407220B (en) | Method for preparing super hydrophobic film on surface of zinc substrate | |
| CN102041509B (en) | Preparation method for constructing super-hydrophobic structure on surface of aluminum alloy | |
| CN102500245B (en) | Preparation method of metal-base ceramic composite filter membrane | |
| CN108970418B (en) | Preparation method of super-hydrophilic underwater super-oleophobic oil-water separation net | |
| CN104888498A (en) | Preparation method of durable super-hydrophobic super-oleophylic foamy copper for oil and water separation | |
| WO2016201936A1 (en) | Surface passivation method for stainless steel product | |
| CN102886155A (en) | Bionic construction of metal-foam-based oil-water separation material | |
| Latthe et al. | Lotus effect-based superhydrophobic surfaces: candle soot as a promising class of nanoparticles for self-cleaning and oil–water separation applications | |
| Wang et al. | Silicone oil infused slippery candle soot surface for corrosion inhibition with anti-fouling and self-healing properties | |
| CN103849906A (en) | Preparation method of super-hydrophobic porous mesh for oil water separation | |
| CN101824620A (en) | Preparation method of superhydrophobic coating on magnesium alloy surface | |
| CN105237797B (en) | With super lubricated surface material of groove-like substrate and preparation method thereof | |
| CN101642714A (en) | Preparation method of core-shell Fe/Pd bimetallic nano-catalyst | |
| CN103084323A (en) | Bionic construction of super-amphiphobic materials based on metal foam | |
| CN102657954A (en) | Water control functional material and preparation method thereof | |
| CN101934268B (en) | Method for preparing magnesium alloy surface super-hydrophobic anticorrosion functional film | |
| CN107142467A (en) | A kind of preparation method of super lubrication aluminium surface | |
| WO2017161911A1 (en) | Heat exchanger having condensate drop self-repelling function nanolayer | |
| CN102888588B (en) | Preparation method for super-amphiphobic metal surface | |
| CN106943882B (en) | A kind of modified composite membrane of Prussian blue analogue/carboxy methylcellulose gel and preparation method and purposes | |
| CN105565442B (en) | A kind of Titanium base brown lead oxide porous pipe type membrane electrode, preparation and application | |
| CN103469184B (en) | A kind of preparation method of super-hydrophobic bismuth coating | |
| CN103469216B (en) | A kind of preparation method of the porous C u surface for heat exchange | |
| CN103212528A (en) | Preparation method for metallic titanium surface super-hydrophobic thin film | |
| CN110241409A (en) | Micro-nano super-hydrophobic film of metallic substrate surface and its preparation method and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130508 |