CN102965720A - Method for preparing aluminum-base super-amphiphobic surface - Google Patents
Method for preparing aluminum-base super-amphiphobic surface Download PDFInfo
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- CN102965720A CN102965720A CN2012104347873A CN201210434787A CN102965720A CN 102965720 A CN102965720 A CN 102965720A CN 2012104347873 A CN2012104347873 A CN 2012104347873A CN 201210434787 A CN201210434787 A CN 201210434787A CN 102965720 A CN102965720 A CN 102965720A
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Abstract
The invention discloses a method for preparing an aluminum-base super-amphiphobic surface. The method comprises the following steps: polishing aluminum plates, cleaning to remove oil, parallelizing the cleaned aluminum plates as an anode and a cathode, connecting the aluminum plates with a direct current power supply through wires, connecting the aluminum plate to the positive pole of the power supply, connecting the cathode to the negative pole, and putting the aluminum plates in an electrolyte to carry out electrochemical etching; and after the electrochemical processing is finished, soaking the aluminum plate in boiling water for some time, taking out, drying, soaking the aluminum plate in a perfluorocaprylic acid water solution to carry out modification, taking out, and drying to obtain the aluminum-base super-amphiphobic surface. The surface obtained by the method has the characteristics of no water staining and no oil staining, and can be used for resisting staining and corrosion on the aluminum surface.
Description
Technical field
The invention belongs to aluminium surface treatment and modification field, particularly a kind of preparation side of super-double-hydrophobic surface
Method.
Background technology
Super-double-hydrophobic surface refers to water droplet and oil droplet contact angle thereon all greater than 150 °, and roll angle namely has the surface of super-hydrophobicity and super oleophobic property simultaneously all less than 10 ° surface.Super hydrophobic surface has broad application prospects because having the characteristics such as automatically cleaning, drag reduction, corrosion-resistant, freezing frosting.But common super hydrophobic surface does not have super oleophobic property, in case when containing greasy dirt in the water, easily lost super-hydrophobicity by oil pollution.Therefore, compare with common super hydrophobic surface, super-double-hydrophobic surface has larger using value.
Preparation method and the super hydrophobic surface of metallic matrix super-double-hydrophobic surface are similar, all are to prepare coarse structure at metallic matrix first, modify to reduce surface energy through low-surface-energy material again.But because the surface tension of oils liquid, therefore obtains comparatively difficulty of super-double-hydrophobic surface much smaller than water.At present, less about the method for preparing the metallic matrix super-double-hydrophobic surface.Application number a kind of super-hydrophobic and super-oleophobic surface preparation technology that has been 200810183392.4 Patent Application Publication, adopting successively sodium sulfate and oxalic acid is electrolytic solution, prepare nanoporous and nanometer clump shape structure by electrochemistry anodic oxidation at aluminum substrate, again after perfluor octadecane octyl group trichlorosilane is modified, present super-double-thinning property, contact angle to water reaches 171 °, to contact angles such as crude oil, silicone oil also all above 150 °.A kind of method that obtains super-double-thinning property at metallic copper or copper alloy substrate surface that application number is 200810056646.6 Patent Application Publication, the film that adopts the Perfluorocaprylic Acid infusion method to be comprised of perfluorinated aliphatic acid mantoquita microballoon at copper surface coverage one deck, this film just has ultra-amphosphobic without any low surface energy processing.(Angewandte Chemie. 1997,36 9:1011-1012.) obtains the fractal coarse structure of slit-like take sulfuric acid as electrolytic solution by galvanic corrosion to Shibuichi etc. on the aluminium surface, after fluoridizing the MAP modification, present super-double-thinning property.(The Journal of Physical Chemistry C. 2008,112 30:11454-11458) uses 19 fluorine capric acid to be etched in and prepares the super-double-hydrophobic surface with nano-sheet structure on the Zinc Matrix Meng etc.(the Journal of Colloid and Interface Science. 2012 such as Zhu, 367,1:443-449) copper is immersed in the mixed solution of sodium hydroxide and ammonium persulphate, obtain micro-flowers and the nanorod structure of evenly distribution and dense arrangement, after Perfluorocaprylic Acid is modified, obtain super-double-hydrophobic surface.Though aforesaid method can process super-double-hydrophobic surface, there are the problems such as dangerous or expensive chemical reagent, working (machining) efficiency are low, device is complicated of using.Therefore, simple, efficient, the safety of research, method that cost is low realize that the processing of super-double-hydrophobic surface has important practical significance.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method for preparing simply, efficiently, cheaply the aluminum substrate super-double-hydrophobic surface.
The technical solution used in the present invention comprises the steps:
(1) clean: aluminium sheet is carried out rubbing down, clean again oil removing;
(2) electro-chemical machining: the aluminium sheet after will cleaning is as the parallel placement with negative electrode of anode, and links to each other with direct supply by wire, and aluminium sheet is connect positive source, and negative electrode connects power cathode, then puts it in the electrolytic solution, and plugged begins electrochemical etching; The electrolytic solution that adopts is the NaCl aqueous solution; After electro-chemical machining is finished aluminium sheet is cleaned;
(3) chemical process: the aluminium sheet behind the electro-chemical machining is immersed in for some time in the boiling water, dry after taking out; Soak time is no less than 40 min;
(4) low surface energy processing: the aluminium sheet after will processing is immersed in the Perfluorocaprylic Acid aqueous solution and modifies, and is dry after taking out.
The present invention compares with the technology of preparing of existing metallic matrix super-double-hydrophobic surface and has the following advantages:
(1) the inventive method need not strong acid, highly basic, and is little to environment and operator's harm.
(2) the electrolytic solution cost that adopts of the inventive method is low, and reusable.
(3) the aluminum substrate super-double-hydrophobic surface that obtains of the inventive method reaches 166.6 ° to the contact angle of water, contact angle to n-Hexadecane reaches 157.7 °, roll angle is all less than 4 °, the surface have well do not get wet, the oily dirt free feature, can be used for the antifouling and anticorrosion of aluminium surface.
(4) the aluminum substrate super-double-hydrophobic surface that obtains of the inventive method has good stability in air, in environment, place the several months after its surperficial ultra-amphosphobic unchanged.
Description of drawings
Fig. 1 is the scanning electron microscope (SEM) photograph of the aluminum substrate super-double-hydrophobic surface that obtains of embodiment 1.
Fig. 2 is the scanning electron microscope (SEM) photograph of the aluminum substrate super-double-hydrophobic surface that obtains of embodiment 1.
Fig. 3 is the hydrophobic synoptic diagram of the aluminum substrate super-double-hydrophobic surface that obtains of embodiment 1.
Fig. 4 is the oleophobic synoptic diagram of the aluminum substrate super-double-hydrophobic surface that obtains of embodiment 1.
Embodiment
Embodiment 1
(1) aluminium sheet is removed zone of oxidation with 1200#, 2000# sand papering respectively, the washing composition oil removing dries up after the washed with de-ionized water.
(2) take aluminium sheet as anode, the copper coin of same size is negative electrode, places the 0.1 mol/L NaCl aqueous solution, at 500 mA/cm
2Processing 6 min under the current density.After electro-chemical machining is finished, aluminium sheet is immersed in 40 min in the boiling water after with deionized water rinsing, dries up after the taking-up.
(3) aluminium sheet after will processing is immersed in 60 min in the Perfluorocaprylic Acid aqueous solution of 0.015 mol/L, dries up after the taking-up and can obtain super-double-hydrophobic surface.
Claims (1)
1. method for preparing the aluminum substrate super-double-hydrophobic surface, its feature may further comprise the steps:
(1) clean: aluminium sheet is carried out rubbing down, clean again oil removing;
(2) electro-chemical machining: the aluminium sheet after will cleaning is as the parallel placement with negative electrode of anode, and links to each other with direct supply by wire, and aluminium sheet is connect positive source, and negative electrode connects power cathode, then puts it in the electrolytic solution, and plugged begins electrochemical etching; The electrolytic solution that adopts is the NaCl aqueous solution; After electro-chemical machining is finished aluminium sheet is cleaned;
(3) chemical process: the aluminium sheet behind the electro-chemical machining is immersed in the boiling water to soak is no less than 40 min, dry after taking out;
(4) low surface energy processing: the aluminium sheet after will processing is immersed in the Perfluorocaprylic Acid aqueous solution and modifies, and is dry after taking out.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290418A (en) * | 2013-06-24 | 2013-09-11 | 哈尔滨工业大学 | Preparation method for superamphiphobic surface of aluminum and alloy thereof |
| CN103413641A (en) * | 2013-07-29 | 2013-11-27 | 西安交通大学 | Ice coating prevention power transmission aluminum wire and preparation method for surface super-hydrophobic state structural layer |
| CN104131322A (en) * | 2014-07-11 | 2014-11-05 | 华南理工大学 | Aluminum product surface super-hydrophobic film and making method thereof |
| CN104878430A (en) * | 2015-04-17 | 2015-09-02 | 大连理工大学 | Process method for preparing super-amphiphobic zinc surface |
| CN106193189A (en) * | 2016-07-20 | 2016-12-07 | 王淑芬 | A kind of high-efficiency condensation air collecting system and method |
| CN106381492A (en) * | 2016-09-13 | 2017-02-08 | 昆明理工大学 | Method for preparing super-amphiphobic aluminum surface |
| CN106987875A (en) * | 2017-03-03 | 2017-07-28 | 四川农业大学 | A kind of preparation method of super-hydrophobic superoleophobic material |
| CN107059107A (en) * | 2017-04-20 | 2017-08-18 | 沈阳航空航天大学 | A kind of preparation method of almag super-double-hydrophobic surface |
| CN107164800A (en) * | 2017-05-11 | 2017-09-15 | 沈阳航空航天大学 | A kind of preparation method and applications on aluminium sheet texturing surface |
| CN108515005A (en) * | 2018-03-27 | 2018-09-11 | 福建省闽发铝业股份有限公司 | Exempt from chemically treated method before a kind of spraying of aluminum alloy pattern plate |
| CN109112599A (en) * | 2018-08-22 | 2019-01-01 | 大连理工大学 | A kind of preparation method obtaining sliding porous surface on aluminum substrate |
| CN109483150A (en) * | 2018-11-28 | 2019-03-19 | 西安科技大学 | A kind of surface anticorrosive treatment method of aluminium alloy plate |
| CN111228858A (en) * | 2020-02-17 | 2020-06-05 | 大连理工大学 | Preparation method of super-hydrophobic super-oleophylic nickel-plated carbon fiber |
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| CN102304741A (en) * | 2011-09-22 | 2012-01-04 | 湖南工业大学 | Anodic oxidation method for preparing aluminum-based super-hydrophobic film |
| CN102677059A (en) * | 2012-05-23 | 2012-09-19 | 江苏大学 | Super-hydrophobic aluminium and preparation method thereof |
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2012
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| US7465408B1 (en) * | 2003-12-03 | 2008-12-16 | Advanced Micro Devices, Inc. | Solutions for controlled, selective etching of copper |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290418B (en) * | 2013-06-24 | 2015-08-19 | 哈尔滨工业大学 | Aluminum-aluminum alloy super-double-hydrophobic surface preparation method |
| CN103290418A (en) * | 2013-06-24 | 2013-09-11 | 哈尔滨工业大学 | Preparation method for superamphiphobic surface of aluminum and alloy thereof |
| CN103413641A (en) * | 2013-07-29 | 2013-11-27 | 西安交通大学 | Ice coating prevention power transmission aluminum wire and preparation method for surface super-hydrophobic state structural layer |
| CN103413641B (en) * | 2013-07-29 | 2016-01-13 | 西安交通大学 | The preparation method of ice coverage preventing electricity transmission aluminum conductor and surface super hydrophobic status architecture layer |
| CN104131322A (en) * | 2014-07-11 | 2014-11-05 | 华南理工大学 | Aluminum product surface super-hydrophobic film and making method thereof |
| CN104878430A (en) * | 2015-04-17 | 2015-09-02 | 大连理工大学 | Process method for preparing super-amphiphobic zinc surface |
| CN106193189B (en) * | 2016-07-20 | 2020-01-10 | 王淑芬 | Efficient condensed air water collecting system and method |
| CN106193189A (en) * | 2016-07-20 | 2016-12-07 | 王淑芬 | A kind of high-efficiency condensation air collecting system and method |
| CN106381492A (en) * | 2016-09-13 | 2017-02-08 | 昆明理工大学 | Method for preparing super-amphiphobic aluminum surface |
| CN106987875A (en) * | 2017-03-03 | 2017-07-28 | 四川农业大学 | A kind of preparation method of super-hydrophobic superoleophobic material |
| CN106987875B (en) * | 2017-03-03 | 2019-05-07 | 四川农业大学 | A kind of preparation method of super-hydrophobic-superoleophobic material |
| CN107059107A (en) * | 2017-04-20 | 2017-08-18 | 沈阳航空航天大学 | A kind of preparation method of almag super-double-hydrophobic surface |
| CN107164800A (en) * | 2017-05-11 | 2017-09-15 | 沈阳航空航天大学 | A kind of preparation method and applications on aluminium sheet texturing surface |
| CN108515005A (en) * | 2018-03-27 | 2018-09-11 | 福建省闽发铝业股份有限公司 | Exempt from chemically treated method before a kind of spraying of aluminum alloy pattern plate |
| CN109112599A (en) * | 2018-08-22 | 2019-01-01 | 大连理工大学 | A kind of preparation method obtaining sliding porous surface on aluminum substrate |
| CN109483150A (en) * | 2018-11-28 | 2019-03-19 | 西安科技大学 | A kind of surface anticorrosive treatment method of aluminium alloy plate |
| CN111228858A (en) * | 2020-02-17 | 2020-06-05 | 大连理工大学 | Preparation method of super-hydrophobic super-oleophylic nickel-plated carbon fiber |
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Application publication date: 20130313 |