CN101270475A - Method for preparing hydrophobic silver surface - Google Patents
Method for preparing hydrophobic silver surface Download PDFInfo
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- CN101270475A CN101270475A CNA200810034864XA CN200810034864A CN101270475A CN 101270475 A CN101270475 A CN 101270475A CN A200810034864X A CNA200810034864X A CN A200810034864XA CN 200810034864 A CN200810034864 A CN 200810034864A CN 101270475 A CN101270475 A CN 101270475A
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Abstract
The invention discloses a preparation method for a hydrophobic nature silver surface in the technical field of metal materials which includes: washing a substrate first, then dipping the substrate in newly prepared ammoniated silver complex ion liquid, reducing the silver by a reducer containing an aldehyde group, leading the silver to be deposited on the surface of the substrate and then obtaining the hydrophobic nature silver surface after the molecule self-assembled decoration of long-chain alkanethiols; the contact angle of the finally obtained silver surface can reach more than 150 degrees and the angle of roll is smaller than 10 degrees. The method has the advantages of simple technique, being easily to be controlled, simple device, low cast, being able to be manufactured in batch and high hydrophobic nature. The invention can be applied to the fields like water preventing, pollution preventing, no damage transportation, micro-liquid, etc.
Description
Technical field
The present invention relates to a kind of preparation method's of precious metal surface of metallic substance technical field, particularly a kind of hydrophobic silver surface preparation method.
Background technology
Usually be used for weighing the solid wettability with liquid at the contact angle of solid surface, significant for solid material in the application in fields such as tribology, fluid transmission, antifrost antifogging.It is generally acknowledged that the contact angle of water presents hydrophilic nmature less than 90 ° surface, the contact angle of water presents hydrophobic property greater than 90 ° surface, if the contact angle of water is greater than 150 °, then the surface presents superhydrophobic property.Simultaneously, judge that the hydrophobicity on a surface also should be considered the complexity that water droplet tumbles from the surface, promptly tumble the angle size, for super hydrophobic surface, water droplet should very easily tumble from the surface.The size of solid surface contact angle depends primarily on surface free energy and surface geometry pattern, even the flat surfaces of the fluorine material that surface free energy is minimum, the contact angle of water also can only reach 120 °, obtain super hydrophobic surface, except considering the chemical constitution of material, the microscopic appearance on surface is also most important.Therefore make up super hydrophobic surface mainly by two kinds of approach: the one, at the material of uneven surface modification low surface energy with certain micro nano structure; Another kind of effective means is to adopt methods such as etching method, micromachined method, template extrusion molding and self-assembly method, has certain hydrophobic material surface structure micron and nanometer composite structure, thereby is obtaining ultra-hydrophobicity.
Find through literature search prior art, Javier Bravo etc. are at " Langmuir " (" Lang Gemiuer ") (2007,23,7293) article of delivering on " Transparent Superhydrophobic FilmsBased on Silica Nanoparticles ", the method of the super-hydrophobic glass of preparation is proposed in this article, concrete grammar is assembled polymer electrolyte and Nano particles of silicon dioxide for the method with self-assembly layer by layer at glass surface, after modifying, silicon fluoride obtains super-hydrophobicity, its weak point is that this method need assemble 20 layers of Nano particles of silicon dioxide, thereby the complex operation complexity; Zhigang Guo etc. are in " J.Am.Chem.Soc. " (" JACS ") (2005,127,15670) article of delivering on " Stable BiomimeticSuper-Hydrophobic Engineering Materials ", the preparation method of super-hydrophobic aluminium and aluminium alloy is proposed in this article, concrete grammar is to adopt sodium hydroxide solution etching aluminium and aluminium alloy earlier, after modifying through the polydimethylsiloxane of Perfluorononane and ethenyl blocking respectively, obtain super-hydrophobicity, method is simple for this, its weak point is to be only applicable to aluminium and aluminum alloy materials, can not be applied to glass, materials such as silicon.
Super hydrophobic surface all has wide practical use in a lot of fields such as automatically cleaning material, microfluid and harmless liquid transmission, thereby relevant research is receiving increasing concern.Simple substance silver has good ductility as a kind of precious metal, and its electroconductibility and thermal conduction all are the highest in all metals, therefore is widely used in electronics industry and low temperature thermally conductive material field; In addition, because simple substance silver has the germ-resistant ability of spectrum, it also has certain application at medicine and hygiene fields.Silver ions in the aqueous solution can be reduced agent, light, thermal reduction, and required equipment is simple, reaction is easy to control.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of preparation method of hydrophobic silver surface is provided, promptly on glass, silicon chip, polyimide base film, deposit the preparation method of preparation super-hydrophobicity silver surface, make its substrate surface deposition have the metallic silver layer of micro nano structure in different shape and size, method through finishing obtains ultra-hydrophobicity again, the preparation process condition is controlled easily, and the surface micro-structure of preparation is stable.
The present invention is achieved by the following technical solutions, the present invention cleans substrate earlier, then substrate is immersed in the silver ammino ion solution of new preparation, with the reductive agent that contains aldehyde radical with silver reduction and make it deposit to substrate surface, obtain hydrophobic silver surface through the molecule of chain alkyl mercaptan after self-assembled modified again, the contact angle of the silver surface that finally obtains can reach more than 150 °, and roll angle is less than 10 °.
The substrate that the present invention uses is glass substrate, silicon chip or polyimide base film.
Described substrate is cleaned earlier, be meant: it is that the vitriol oil/30% hydrogen peroxide of 3: 1 is heated to 80 ℃ of insulation half an hour that glass substrate or silicon chip are put into volume ratio, take out and use deionized water rinsing, put into the dehydrated alcohol ultrasonic cleaning again 10 minutes, use washed with de-ionized water, thereby obtain being rich in the hydrophilic substrate surface of hydroxyl; Perhaps polyimide base film is placed in the dehydrated alcohol ultrasonic cleaning 10 minutes, and used washed with de-ionized water.
Through glass substrate, silicon chip or the polyimide base film after cleaning, can directly use, the stannous chloride solution of perhaps putting into 0.01%-0.10% is cleaned with deionized water after soaking into and carrying out the sensitization processing in 5 seconds～60 seconds, immerses in the silver ammino ion solution of new preparation then.
The silver ammino ion solution of described new preparation, be meant: with 1ml～20ml concentration is that dropwise to be added drop-wise to 10ml～50ml concentration be in the silver nitrate solution of 0.01mol/L～1mol/L for the ammoniacal liquor of 0.1mol/L～10mol/L, the vibration while dripping, precipitation until initial generation is dissolved gradually, forms silver-colored ammino and closes ion.
The reductive agent that described usefulness contains aldehyde radical is with the silver reduction and make it deposit to substrate surface, be meant: substrate is put into silver ammino solution, at churned mechanically 0.2%～20% the reductive agent of dripping simultaneously silver is restored, consumption is 0.4ml～4ml, temperature of reaction is 10 ℃～90 ℃, and the depositing time of silver is 5min～360min; Take out then substrate with washed with de-ionized water after, put into vacuum drying oven, at 40 ℃ of following dry 2h～12h;
Described reductive agent is formaldehyde, acetaldehyde, propionic aldehyde, butyraldehyde, glucose or fructose.
Obtain hydrophobic silver surface after the molecule of the described chain alkyl of process again mercaptan is self-assembled modified, be meant: the substrate of the deposition silver layer that drying is good immerses in the organic solvent solution that contains chain alkyl mercaptan and carries out self-assembly 1h～72h, wherein the concentration of chain alkyl mercaptan in organic solvent is 1mmol/L～10mmol/L, with the organic solvent flushing, obtain a kind of hydrophobic silver surface then.
Chain alkyl mercaptan that described chain alkyl mercaptan is C8-C22 and fluorine-containing mercaptan.
Described organic solvent is the alkane of dehydrated alcohol, methylene dichloride, toluene, tetrahydrofuran (THF), dimethyl formamide or C6-C16.
The silver-colored particle diameter that the present invention obtains is along with the rising of temperature of reaction is nano level to micron-sized variation.Hydrophobically modified as if carrying out without chain alkyl mercaptan, when depositing time was 5～10min, reduce deposition was less in the silver amount of substrate, and substrate surface is the bright and uniform silver mirror, and water contact angle is 90 °～120 °; When depositing time is 10～30min, reduce deposition increases in the silver amount of substrate, the substrate surface coarse shape that is white in color, and water contact angle is 120 °～145 °; When depositing time was 30～360min, reduce deposition was more in the silver amount of substrate, and substrate surface is light yellow coarse shape, and water contact angle is 145 °～155 °; With chain alkyl mercaptan carry out hydrophobically modified after, the contact angle of silver surface increases to 120 °～150 ° by 90 °～120 ° respectively; Increase to 145 °～155 ° by 120 °～145 °; Increase to 155 °～165 ° by 145 °～155 °, and water droplet in these surperficial roll angles less than 1 °～10 °.
The silver surface that the present invention obtains, it is stable to pass through its hydrophobic property of placement that reaches month; This preparation method's technology is simple, be easy to control, required equipment is simple, cost is low, can be used for fields such as antifouling, the harmless transportation of waterproof, microfluid.And silver has good spectrum antibiotic and sterilizing ability, is a kind of environment-friendly type antibiotic material of green non-pollution.
Description of drawings
Fig. 1 is the electron scanning micrograph of the hydrophobic silver surface that obtains of embodiment 1.
Fig. 2 be water droplet embodiment 1 obtain without the optics enlarged photograph on the silver surface of hydrophobic treatment.
Fig. 3 is the optics enlarged photograph of water droplet on the silver surface of the hydrophobic treatment that embodiment 1 obtains.
Fig. 4 is the optics enlarged photograph that water droplet tumbles on the hydrophobic silver surface that embodiment 1 obtains,
Wherein scheme a, b, c, d and be respectively the water droplet photo that every interval 80ms is taken when tumbling.
Fig. 5 is the optics enlarged photograph of water droplet on the silver surface of the hydrophobic treatment that embodiment 2 obtains.
Fig. 6 places water droplet optics enlarged photograph thereon after 1 month with the hydrophobic silver surface that embodiment 2 obtains in atmosphere.
Fig. 7 is the optics enlarged photograph of water droplet on the silver surface of the hydrophobic treatment that embodiment 3 obtains.
Concrete embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
(1) glass substrate being put into volume ratio is that the vitriol oil/30% hydrogen peroxide of 3: 1 is heated to 80 ℃ of insulation half an hour, take out and use deionized water rinsing, put into dehydrated alcohol more ultrasonic 2 times, each 10 minutes, use washed with de-ionized water, thereby obtain being rich in the hydrophilic substrate surface of hydroxyl; To put into 0.03% stannous chloride solution through the glass substrate of above-mentioned processing then soaks into and carried out sensitization in 5 seconds and handle the back and clean with deionized water;
(2) be that the ammoniacal liquor of 1mol/L dropwise is added drop-wise in the silver nitrate solution that 20ml concentration is 0.1mol/L with 5ml concentration, originally vibration generates brown precipitation while dripping, and the dropping precipitation dissolving gradually along with ammoniacal liquor forms silver-colored ammino and closes ion;
(3) glass substrate of above-mentioned processing is put into silver ammino solution, under churned mechanically effect, drip 2% acetaldehyde gradually, consumption is 0.8ml, and temperature of reaction is 30 ℃, and in the glass substrate surface deposition, the reaction times is 30min to silver gradually; Take out then glass substrate with washed with de-ionized water after, put into vacuum drying oven, at 40 ℃ of following dry 6h;
(4) glass substrate of the deposition silver layer that drying is good immerses in the ethanol solution that contains lauryl mercaptan and carries out self-assembly 1h, and wherein the concentration of lauryl mercaptan in dehydrated alcohol is 10mmol/L.Clean with dehydrated alcohol then, obtain a kind of hydrophobic silver surface.
Fig. 1 is the electron scanning micrograph of the hydrophobic silver surface that obtains of embodiment 1, as can be seen from the figure, the silver particle is reunited mutually and is formed coarse silver surface, particle grain size is not of uniform size, the lowest layer is sedimentary to be nano level particle, on sedimentary be micron-sized silver-colored particle, the grain diameter on top layer is substantially about one micron.
Fig. 2 be water droplet embodiment 1 obtain without the optics enlarged photograph on the silver surface of hydrophobic treatment, the contact angle of water is 147.5 °.
Fig. 3 is the optics enlarged photograph of water droplet on the silver surface after the hydrophobic treatment that embodiment 1 obtains, and illustrates that the contact angle through water after the hydrophobic treatment of lauryl mercaptan increases to 157.0 °.
Fig. 4 is the optics enlarged photograph that water droplet tumbles on the hydrophobic silver surface that embodiment 1 obtains, wherein Fig. 4 a, b, c, d are respectively the water droplet photos that every interval 80ms is taken when tumbling, and illustrate that the tumble angle of water droplet on the hydrophobic silver surface that embodiment 1 obtains is 2.5 °.
Embodiment 2
(1) glass substrate being put into volume ratio is that the vitriol oil/30% hydrogen peroxide of 3: 1 is heated to 80 ℃ of insulation half an hour, take out and use deionized water rinsing, put into dehydrated alcohol more ultrasonic 2 times, each 10 minutes, use washed with de-ionized water, thereby obtain being rich in the hydrophilic substrate surface of hydroxyl; To put into 0.01% stannous chloride solution through the glass substrate of above-mentioned processing then soaks into and carried out sensitization in 10 seconds and handle the back and clean with deionized water;
(2) be that the ammoniacal liquor of 1mol/L dropwise is added drop-wise in the silver nitrate solution that 20ml concentration is 0.1mol/L with 5ml concentration, originally vibration generates brown precipitation while dripping, and the dropping precipitation dissolving gradually along with ammoniacal liquor forms silver-colored ammino and closes ion;
(3) glass substrate that above-mentioned sensitization was handled is put into silver ammino solution, drips 15% fructose under churned mechanically effect gradually, and consumption is 0.8ml, and temperature of reaction is 30 ℃, and in the glass substrate surface deposition, the reaction times is 120min to silver gradually; Take out then glass substrate with washed with de-ionized water after, put into vacuum drying oven, at 40 ℃ of following dry 10h;
(4) glass substrate of the deposition silver layer that drying is good immerses in the toluene solution that contains lauryl mercaptan and carries out self-assembly 36h, and wherein the concentration of lauryl mercaptan in toluene is 10mmol/L, cleans with toluene then, obtains a kind of hydrophobic silver surface.
Fig. 5 is the optics enlarged photograph of water droplet on the silver surface of the hydrophobic treatment that embodiment 2 obtains, and the hydrophobic silver surface that obtains and the contact angle of water are 157.5 °; The tumble angle of water droplet on the hydrophobic silver surface that embodiment 2 obtains is 0.4 °.
Fig. 6 is this hydrophobic silver surface is placed one month in atmosphere after, water droplet optics enlarged photograph thereon, and the hydrophobic silver surface that obtains and the contact angle of water are 154.7 °, illustrate that this silver surface hydrophobicity is stable.
Embodiment 3
(1) silicon chip being put into volume ratio is that the vitriol oil/30% hydrogen peroxide of 3: 1 is heated to 80 ℃ of insulation half an hour, take out and use deionized water rinsing, put into dehydrated alcohol more ultrasonic 2 times, each 10 minutes, use washed with de-ionized water, thereby obtain being rich in the hydrophilic substrate surface of hydroxyl; To put into 0.10% stannous chloride solution through the silicon chip of above-mentioned processing then soaks into and carried out sensitization in 60 seconds and handle the back and clean with deionized water;
(2) be that the ammoniacal liquor of 0.1mol/L dropwise is added drop-wise in the silver nitrate solution that 50ml concentration is 0.01mol/L with 20ml concentration, originally vibration generates brown precipitation while dripping, and the dropping precipitation dissolving gradually along with ammoniacal liquor forms silver-colored ammino and closes ion;
(3) silicon chip that above-mentioned sensitization was handled is put into silver ammino solution, drips 20% glucose under 10 ℃ of room temperatures and churned mechanically effect gradually, and consumption is 0.4ml, and in the glass substrate surface deposition, the reaction times is 360min to silver gradually; Take out then silicon chip with washed with de-ionized water after, put into vacuum drying oven, at 40 ℃ of following dry 12h;
(4) silicon chip of the deposition silver layer that drying is good immerses in the tetrahydrofuran solution that contains lauryl mercaptan and carries out self-assembly 24h, wherein the concentration of lauryl mercaptan in tetrahydrofuran (THF) is 10mmol/L, clean with tetrahydrofuran (THF) then, obtain a kind of hydrophobic silver surface.
Fig. 7 is the optics enlarged photograph of water droplet on the silver surface of the hydrophobic treatment that embodiment 3 obtains, and the hydrophobic silver surface that obtains and the contact angle of water are 155.4 °; The tumble angle of water droplet on the hydrophobic silver surface that embodiment 3 obtains is 3.0 °.
Embodiment 4
(1) glass substrate being put into volume ratio is that the vitriol oil/30% hydrogen peroxide of 3: 1 is heated to 80 ℃ of insulation half an hour, take out and use deionized water rinsing, put into dehydrated alcohol more ultrasonic 2 times, each 10 minutes, use washed with de-ionized water, thereby obtain being rich in the hydrophilic substrate surface of hydroxyl;
(2) be that the ammoniacal liquor of 1mol/L dropwise is added drop-wise in the silver nitrate solution that 20ml concentration is 0.1mol/L with 12ml concentration, originally vibration generates brown precipitation while dripping, and the dropping precipitation dissolving gradually along with ammoniacal liquor forms silver-colored ammino and closes ion;
(3) glass substrate after will cleaning is put into silver ammino solution, drips 2% formaldehyde under churned mechanically effect gradually, and consumption is 0.8ml, and temperature of reaction is 90 ℃, and in the glass substrate surface deposition, the reaction times is 5min to silver gradually; Take out then glass substrate with washed with de-ionized water after, put into vacuum drying oven, at 40 ℃ of following dry 12h;
(4) glass substrate of the deposition silver layer that drying is good immerses in the dimethyl formamide solution that contains n-octyl mercaptan and carries out self-assembly 72h, wherein the concentration of n-octyl mercaptan in dimethyl formamide is 1mmol/L, clean with dimethyl formamide then, obtain a kind of hydrophobic silver surface.
The hydrophobic silver surface that embodiment 4 obtains and the contact angle of water are 155.9 °; The water droplet angle that tumbles in its surface is 1.1 °.
Embodiment 5
(1) polyimide base film is put into dehydrated alcohol ultrasonic cleaning 10 minutes, used washed with de-ionized water, put into 0.10% stannous chloride solution then and soak into and carried out sensitization in 30 seconds and handle the back and clean with deionized water;
(2) be that the ammoniacal liquor of 10mol/L dropwise is added drop-wise in the silver nitrate solution that 10ml concentration is 1mol/L with 1ml concentration, originally vibration generates brown precipitation while dripping, and the dropping precipitation dissolving gradually along with ammoniacal liquor forms silver-colored ammino and closes ion;
(3) polyimide base film that above-mentioned sensitization was handled is put into silver ammino solution, drips 0.2% formaldehyde under 10 ℃ of room temperatures and churned mechanically effect gradually, and consumption is 4ml, and silver is gradually at the polyimide base film surface deposition, and the reaction times is 120min; Take out then polyimide base film with washed with de-ionized water after, put into vacuum drying oven, at 40 ℃ of following dry 2h;
(4) polyimide base film of the deposition silver layer that drying is good immerses in the C16 alkane solution that contains hexadecyl mercaptan and carries out self-assembly 24h, wherein the concentration of hexadecyl mercaptan in C16 alkane is 5mmol/L, clean with C16 alkane then, obtain a kind of hydrophobic silver surface.
The hydrophobic silver surface that embodiment 5 obtains and the contact angle of water are 153.4 °; The angle that tumbles on the hydrophobic silver surface that water droplet obtains thereon is 4.0 °.
Embodiment 6
(1) glass substrate being put into volume ratio is that the vitriol oil/30% hydrogen peroxide of 3: 1 is heated to 80 ℃ of insulation half an hour, take out and use deionized water rinsing, put into dehydrated alcohol more ultrasonic 2 times, each 10 minutes, use washed with de-ionized water, thereby obtain being rich in the hydrophilic substrate surface of hydroxyl; To put into 0.10% stannous chloride solution through the glass substrate of above-mentioned processing then soaks into and carried out sensitization in 5 seconds and handle the back and clean with deionized water;
(2) be that the ammoniacal liquor of 1mol/L dropwise is added drop-wise in the silver nitrate solution that 20ml concentration is 0.1mol/L with 10ml concentration, originally vibration generates brown precipitation while dripping, and the dropping precipitation dissolving gradually along with ammoniacal liquor forms silver-colored ammino and closes ion;
(3) glass substrate of above-mentioned processing is put into silver ammino solution, under churned mechanically effect, drip 2% formaldehyde gradually, consumption is 0.4ml, and temperature of reaction is 30 ℃, and in the glass substrate surface deposition, the reaction times is 120min to silver gradually; Take out then glass substrate with washed with de-ionized water after, put into vacuum drying oven, at 40 ℃ of following dry 12h;
(4) glass substrate of the deposition silver layer that drying is good immerses and contains 1H, 1H, and 2H carries out self-assembly 0.1h in the dichloromethane solution of 2H-perfluor-1-decane mercaptan, and the concentration of wherein fluorine-containing alkyl sulfhydryl in methylene dichloride is 5mmol/L.Clean with methylene dichloride then, obtain a kind of hydrophobic silver surface.
The hydrophobic silver surface that embodiment 6 obtains and the contact angle of water are 154.6 °; The angle that tumbles on the hydrophobic silver surface that water droplet obtains thereon is 2.3 °.
Claims (10)
1, a kind of preparation method of hydrophobic silver surface, it is characterized in that, substrate is cleaned earlier, then substrate is immersed in the silver ammino ion solution of new preparation, with the reductive agent that contains aldehyde radical with silver reduction and make it deposit to substrate surface, obtain hydrophobic silver surface through the molecule of chain alkyl mercaptan after self-assembled modified again, the contact angle of the silver surface that finally obtains reaches more than 150 °, and roll angle is less than 10 °.
2, the preparation method of hydrophobic silver surface according to claim 1 is characterized in that, described substrate is glass substrate, silicon chip or polyimide base film.
3, the preparation method of hydrophobic silver surface according to claim 1, it is characterized in that, described substrate is cleaned earlier, be meant: it is that the vitriol oil/30% hydrogen peroxide of 3: 1 is heated to 80 ℃ of insulation half an hour that glass substrate or silicon chip are put into volume ratio, take out and use deionized water rinsing, put into the dehydrated alcohol ultrasonic cleaning again 10 minutes, and used washed with de-ionized water, thereby obtain being rich in the hydrophilic substrate surface of hydroxyl; Perhaps polyimide base film is placed in the dehydrated alcohol ultrasonic cleaning 10 minutes, and used washed with de-ionized water.
4, the preparation method of hydrophobic silver surface according to claim 1 and 2, it is characterized in that, through glass substrate, silicon chip or the polyimide base film after cleaning, directly immerse in the silver ammino ion solution of new preparation, the stannous chloride solution of perhaps putting into 0.01%-0.10% soaks into and carried out in 5 seconds～60 seconds cleaning with deionized water after sensitization is handled, and immerses in the silver ammino ion solution of new preparation then.
5, the preparation method of hydrophobic silver surface according to claim 1, it is characterized in that, the silver ammino ion solution of described new preparation, be meant: with 1ml～20ml concentration is that dropwise to be added drop-wise to 10ml～50ml concentration be in the silver nitrate solution of 0.01mol/L～1mol/L for the ammoniacal liquor of 0.1mol/L～10mol/L, the vibration while dripping, precipitation until initial generation is dissolved gradually, forms silver-colored ammino and closes ion.
6, the preparation method of hydrophobic silver surface according to claim 1, it is characterized in that, the reductive agent that described usefulness contains aldehyde radical is with the silver reduction and make it deposit to substrate surface, be meant: substrate is put into silver ammino solution, at churned mechanically 0.2%～20% the reductive agent of dripping simultaneously silver is restored, consumption is 0.4ml～4ml, temperature of reaction is 10 ℃～90 ℃, the depositing time of silver is 5min～360min, take out then substrate with washed with de-ionized water after, put into vacuum drying oven, dry 2h～12h under 40 ℃.
According to the preparation method of claim 1 or 6 described hydrophobic silver surfaces, it is characterized in that 7, described reductive agent is formaldehyde, acetaldehyde, propionic aldehyde, butyraldehyde, glucose or fructose.
8, the preparation method of hydrophobic silver surface according to claim 1, it is characterized in that, obtain hydrophobic silver surface after the molecule of the described chain alkyl of process again mercaptan is self-assembled modified, be meant: the substrate of the deposition silver layer that drying is good immerses in the organic solvent solution that contains chain alkyl mercaptan and carries out self-assembly 0.1h～72h, wherein the concentration of chain alkyl mercaptan in organic solvent is 1mmol/L～10mmol/L, with the organic solvent flushing, obtain hydrophobic silver surface then.
9, the preparation method of hydrophobic silver surface according to claim 8 is characterized in that, chain alkyl mercaptan that described chain alkyl mercaptan is C8-C22 and fluorine-containing mercaptan.
10, the preparation method of hydrophobic silver surface according to claim 8 is characterized in that, described organic solvent is the alkane of dehydrated alcohol, methylene dichloride, toluene, tetrahydrofuran (THF), dimethyl formamide or C6-C16.
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| CN101974759A (en) * | 2010-11-23 | 2011-02-16 | 海宁市科泰克金属表面技术有限公司 | Post-treatment protective agent for rare and precious metals |
| CN102179067A (en) * | 2011-03-24 | 2011-09-14 | 北京化工大学 | Oil-water separation device and preparation method thereof |
| CN102527620A (en) * | 2012-02-26 | 2012-07-04 | 南昌航空大学 | Preparation method of superhydrophobic film on surface of neodymium iron boron magnet |
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| CN101974759A (en) * | 2010-11-23 | 2011-02-16 | 海宁市科泰克金属表面技术有限公司 | Post-treatment protective agent for rare and precious metals |
| CN102179067A (en) * | 2011-03-24 | 2011-09-14 | 北京化工大学 | Oil-water separation device and preparation method thereof |
| CN103165868A (en) * | 2011-12-13 | 2013-06-19 | 上海杉杉科技有限公司 | Silicon-based composite anode material, lithium ion battery, and preparation method and application thereof |
| CN103165868B (en) * | 2011-12-13 | 2016-12-14 | 上海杉杉科技有限公司 | A kind of silica-based composite negative pole material, lithium ion battery and its production and use |
| CN102527620A (en) * | 2012-02-26 | 2012-07-04 | 南昌航空大学 | Preparation method of superhydrophobic film on surface of neodymium iron boron magnet |
| CN103567456A (en) * | 2013-10-08 | 2014-02-12 | 上海交通大学 | Metallic silver surface super-hydrophobicity material and preparation method thereof |
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| CN109690365A (en) * | 2015-10-19 | 2019-04-26 | 美题隆公司 | Anti-corrosion Optical devices |
| CN106283133A (en) * | 2016-09-06 | 2017-01-04 | 吉林大学 | A kind of preparation method of bionical oil-water separation copper foam |
| CN110229333A (en) * | 2019-06-25 | 2019-09-13 | 湘潭大学 | A kind of synthetic method of new type polyimide |
| CN110229333B (en) * | 2019-06-25 | 2022-02-15 | 湘潭大学 | Synthetic method of polyimide |
| CN110684968A (en) * | 2019-10-31 | 2020-01-14 | 济南大学 | Surface modification method for preventing white eggs in fish breeding earthen pot |
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