CN102041509A - Preparation method for constructing super-hydrophobic structure on surface of aluminum alloy - Google Patents
Preparation method for constructing super-hydrophobic structure on surface of aluminum alloy Download PDFInfo
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Abstract
The invention discloses a method for preparing a super-hydrophobic aluminum alloy surface. The method comprises the following steps: (1) firstly carrying out mechanical grinding and polishing on an aluminum alloy plate, removing surface defects and an oxide film, and cleaning with deionized water; (2) mixing 0.08mol/L oxalic acid solution and 1mol/L hydrochloric acid solution with mass concentration of 3.7% according to based on the volume ratio of 1:1, fully stirring and preparing mixed acid solution; (3) immersing an aluminum alloy plate into the mixed acid solution for 12-18 hours, then taking out the aluminum alloy plate, fully cleaning with the deionized water, then immersing into 0.5mol/L potassium permanganate solution for soaking for 1-2 hours, then cleaning with the deionized water, and drying at the furnace temperature of 80-100 DEG C for 0.5-1.5 hours; and (4) soaking in stearic acid ethanol solution with mass fraction of 1% for 25-35 minutes, and drying in atmosphere environment with relative humidity of 60-75% and at room temperature for 20-28 hours, thus preparing the aluminum alloy super-hydrophobic surface. The operation process is simple, the controllability is good, the cost is low, the complicated chemical treatment is not required, expensive equipment is not required, and the method is easy for industrialization.
Description
Technical field
The present invention relates to a kind of preparation method who in the atmosphere at room temperature environment, makes up super-drainage structure in aluminum alloy surface.
Background technology
Metal is owing to have good conduction, thermal conductivity and certain intensity and good processibility is widely applied in each department of military project, national defence, boats and ships, building and national product.Yet plain metal is very easy to be corroded in humidity or corrosive atmosphere, thereby influences the work-ing life of material, causes it normally not play a role, and also brings a lot of unsafe factors to the user.In recent years, super hydrophobic surface (contact angle of material surface and water is greater than 150 °, and water droplet has less roll angle from the teeth outwards) has caused extensive studies interest.Because the contact area of liquid on super hydrophobic surface is very little, can suppress phenomenons such as surface oxidation, burn into frost, conduction of current effectively; In addition, the water droplet of super hydrophobic surface can not stop at surface-stable, inclined surface just can tumble from the surface and not stay any vestige a little, this means that super hydrophobic surface can reduce the chance that corrosive liquid contacts with metallic substance effectively, help to improve the erosion resistance of metallic substance, this provides a new developing direction for undoubtedly the Protective Research of metallic substance.Therefore, super hydrophobic surface all is with a wide range of applications in fields such as outdoor antenna, high building window frame, exterior coating, steamer, biologic medical apparatus, microfluid, windshields.For this reason, our aluminium of selecting to use always is as research object.
Super hydrophobic surface is really used in actual industrial and agricultural production and daily life, and the preparation of super hydrophobic surface is crucial, also is the basis.In recent years, developed the technology of a large amount of preparation super hydrophobic surfaces, as sol-gel method, fluorinated coating method, chemical Vapor deposition process, electrochemical deposition method, polyelectrolyte alternating deposit method, anonizing, mechanical stretching method, plasma method, chemical method for etching, electrostatic spinning method etc.Yet, existing these methods or expensive material such as the extremely low fluorinated siloxane of surface energy of use, or need special processing units such as plasma processing equipment or complicated technological process, thereby cost is higher, is difficult to industrialization.Therefore inventing a kind of simple and low technology of cost prepares super-hydrophobic aluminum alloy surface and is necessary.
Summary of the invention:
Technical problem to be solved by this invention provides the preparation method at aluminum alloy surface structure super-drainage structure that a kind of technology is simple and cost is low.
In order to solve the problems of the technologies described above, the preparation method at aluminum alloy surface structure super-drainage structure provided by the invention comprises the steps:
Aluminum alloy plate materials carried out mechanical polishing and polishing, remove surface imperfection and oxide film, use washed with de-ionized water (1), earlier;
(2), being 3.7% hydrochloric acid soln with 0.08mo l/L oxalic acid solution and 1mol/L mass concentration mixes and fully stirs and make mixed acid solution by 1: 1 volume ratio;
(3), aluminum alloy plate materials is immersed in the mixed acid solution 12～18 hours, take out then to immerse in the 0.5mol/L potassium permanganate solution after aluminum alloy plate materials fully cleans with deionized water and soaked 1～2 hour, use washed with de-ionized water then, and in furnace temperature 80-100 ℃ dry 0.5～1.5 hour;
(4), in massfraction is 1% stearic acid ethanolic soln, soaked 25～35 minutes, be 60～75% in relative humidity, atmosphere at room temperature environment dry 20～28 hours down can be prepared the aluminium alloy super hydrophobic surface.
In the above-mentioned steps (3) aluminum alloy plate materials immersed in the mixed acid solution 15 hours, take out then to immerse in the 0.5mol/L potassium permanganate solution after aluminum alloy plate materials fully cleans with deionized water and soaked 1 hour, use washed with de-ionized water then, and dry in furnace temperature 80-100 ℃.
Being to soak 30 minutes in 1% the stearic acid ethanolic soln at massfraction in the above-mentioned steps (4), is 60～75% in relative humidity, atmosphere at room temperature environment dry 24 hours down.
Adopt the preparation method at aluminum alloy surface structure super-drainage structure of technique scheme, used acid etch agent is: oxalic acid, hydrochloric acid.Used surface-coated material is: stearic acid, ethanol.Super-hydrophobic base material can be fine aluminium or aluminium alloy.The contact angle of super-hydrophobic aluminum alloy surface and water between 150 °～165 °, water droplet in the roll angle of material surface less than 15 °.The superhydrophobic property of super-hydrophobic aluminum alloy surface is stable, is that 0～40 ℃, relative humidity are to place 1 year in 30%～90% the environment in temperature range, and superhydrophobic property does not change.
In sum, the preparation method's operating procedure with super-hydrophobic aluminium alloy of the present invention is simple, controllability good, favorable reproducibility, need not any expensive device, also do not need the complex chemical treatment process, is easy to industrialization, has good industrial applications prospect.
Description of drawings
Fig. 1 is the sem photograph of the super-hydrophobic aluminum alloy surface of the embodiment of the invention 1 acquisition;
Fig. 2 is the super-hydrophobic aluminum alloy surface of the embodiment of the invention 1 acquisition and the contact angle test pattern of water.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment 1:
At first, earlier aluminum alloy plate materials is carried out mechanical polishing and polishing, remove surface imperfection and oxide film, use washed with de-ionized water.Being 3.7% hydrochloric acid soln with 0.08mol/L oxalic acid solution and 1mol/L mass concentration mixes and fully stirs and make mixed acid solution by 1: 1 volume ratio; Then aluminum alloy plate materials was immersed in the mixed acid solution 15 hours, and took out aluminum alloy plate materials then and fully clean the back with deionized water and immerse in the 0.5mol/L potassium permanganate solution and soaked 1 hour, use washed with de-ionized water then, and in 100 ℃ of furnace temperature dry 1 hour.At massfraction is to soak 30 minutes in 1% the stearic acid ethanolic soln, is 75% in relative humidity, and atmosphere at room temperature environment dry 24 hours down can be prepared the aluminium alloy super hydrophobic surface.With the wettability that OCA20 contact angle tester is tested this coatingsurface, referring to Fig. 1 and Fig. 2, the result shows that the contact angle of this surface and water is 154 ± 2 °.
Embodiment 2:
At first, earlier aluminum alloy plate materials is carried out mechanical polishing and polishing, remove surface imperfection and oxide film, use washed with de-ionized water.Being 3.7% hydrochloric acid soln with 0.08mol/L oxalic acid solution and 1mol/L mass concentration mixes and fully stirs and make mixed acid solution by 1: 1 volume ratio; Then aluminum alloy plate materials was immersed in the mixed acid solution 12 hours, and took out aluminum alloy plate materials then and fully clean the back with deionized water and immerse in the 0.5mol/L potassium permanganate solution and soaked 2 hours, use washed with de-ionized water then, and in 80 ℃ of furnace temperature dry 1.5 hours.At massfraction is to soak 25 minutes in 1% the stearic acid ethanolic soln, is 60% in relative humidity, and atmosphere at room temperature environment dry 20 hours down can be prepared the aluminium alloy super hydrophobic surface.
Embodiment 3:
At first, earlier aluminum alloy plate materials is carried out mechanical polishing and polishing, remove surface imperfection and oxide film, use washed with de-ionized water.Being 3.7% hydrochloric acid soln with 0.08mol/L oxalic acid solution and 1mol/L mass concentration mixes and fully stirs and make mixed acid solution by 1: 1 volume ratio; Then aluminum alloy plate materials was immersed in the mixed acid solution 14 hours, take out then to immerse in the 0.5mol/L potassium permanganate solution after aluminum alloy plate materials fully cleans with deionized water and soaked 1.5 hours, use washed with de-ionized water then, and in 100 ℃ of furnace temperature dry 0.5 hour.At massfraction is to soak 28 minutes in 1% the stearic acid ethanolic soln, is 70% in relative humidity, and atmosphere at room temperature environment dry 22 hours down can be prepared the aluminium alloy super hydrophobic surface.
Embodiment 4:
At first, earlier aluminum alloy plate materials is carried out mechanical polishing and polishing, remove surface imperfection and oxide film, use washed with de-ionized water.Being 3.7% hydrochloric acid soln with 0.08mol/L oxalic acid solution and 1mol/L mass concentration mixes and fully stirs and make mixed acid solution by 1: 1 volume ratio; Then aluminum alloy plate materials was immersed in the mixed acid solution 18 hours, and took out aluminum alloy plate materials then and fully clean the back with deionized water and immerse in the 0.5mol/L potassium permanganate solution and soaked 1 hour, use washed with de-ionized water then, and in 90 ℃ of furnace temperature dry 1.2 hours.At massfraction is to soak 35 minutes in 1% the stearic acid ethanolic soln, is 75% in relative humidity, and atmosphere at room temperature environment dry 28 hours down can be prepared the aluminium alloy super hydrophobic surface.
Claims (3)
1. the preparation method at aluminum alloy surface structure super-drainage structure is characterized in that: comprise the steps:
Aluminum alloy plate materials carried out mechanical polishing and polishing, remove surface imperfection and oxide film, use washed with de-ionized water (1), earlier;
(2), being 3.7% hydrochloric acid soln with 0.08mol/L oxalic acid solution and 1mol/L mass concentration mixes and fully stirs and make mixed acid solution by 1: 1 volume ratio;
(3), aluminum alloy plate materials is immersed in the mixed acid solution 12～18 hours, take out then to immerse in the 0.5mol/L potassium permanganate solution after aluminum alloy plate materials fully cleans with deionized water and soaked 1～2 hour, use washed with de-ionized water then, and in furnace temperature 80-100 ℃ dry 0.5～1.5 hour;
(4), in massfraction is 1% stearic acid ethanolic soln, soaked 25～35 minutes, be 60～75% in relative humidity, atmosphere at room temperature environment dry 20～28 hours down can be prepared the aluminium alloy super hydrophobic surface.
2. the preparation method who makes up super-drainage structure in aluminum alloy surface according to claim 1, it is characterized in that: in the above-mentioned steps (3) aluminum alloy plate materials immersed in the mixed acid solution 15 hours, take out then to immerse in the 0.5mol/L potassium permanganate solution after aluminum alloy plate materials fully cleans with deionized water and soaked 1 hour, use washed with de-ionized water then, and dry in furnace temperature 80-100 ℃.
3. the preparation method who makes up super-drainage structure in aluminum alloy surface according to claim 1 and 2, it is characterized in that: be to soak 30 minutes in 1% the stearic acid ethanolic soln at massfraction in the above-mentioned steps (4), in relative humidity is 60～75%, atmosphere at room temperature environment dry 24 hours down.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290147A (en) * | 2011-06-22 | 2011-12-21 | 华北电力大学（保定） | Method for preparing super hydrophobic ice covering resistant aluminum twisted wire |
| CN102310037A (en) * | 2011-09-28 | 2012-01-11 | 湖南工业大学 | Method for preparing super-hydrophobic colored aluminum alloy |
| CN102418098A (en) * | 2011-09-16 | 2012-04-18 | 东南大学 | Low-damage preparation method of super-hydrophobic surface of industrial aluminum foil |
| CN102677059A (en) * | 2012-05-23 | 2012-09-19 | 江苏大学 | Super-hydrophobic aluminium and preparation method thereof |
| CN103204457A (en) * | 2013-03-14 | 2013-07-17 | 吉林大学 | Production method of aluminum alloy bionic superhydrophobic surface |
| CN103243319A (en) * | 2012-04-12 | 2013-08-14 | 东莞市才智坊新材料有限公司 | Super-hydrophobic phosphating film aluminum alloy material and preparation method thereof |
| CN103409754A (en) * | 2013-07-29 | 2013-11-27 | 西安交通大学 | Etching-based surface super-hydrophobicity treatment technology for aluminium material |
| 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 |
| CN104313565A (en) * | 2014-11-19 | 2015-01-28 | 东莞市汇林包装有限公司 | Method for preparing super-hydrophobic copper foil |
| CN106148958A (en) * | 2016-01-12 | 2016-11-23 | 机械科学研究总院先进制造技术研究中心 | Super hydrophilic/super-hydrophobic Treatment of Metal Surface automatic production line based on micro-nano structure |
| CN106356474A (en) * | 2016-11-02 | 2017-01-25 | 广东安德力新材料有限公司 | Aluminum plastic compound film with excellent heat sealing property and low-temperature flexibility |
| CN107649352A (en) * | 2017-09-19 | 2018-02-02 | 重庆大学 | A kind of fast method for preparing of the super-hydrophobic extreme wetability aluminum alloy materials of large scale |
| CN109628978A (en) * | 2019-01-22 | 2019-04-16 | 中国科学院海洋研究所 | A kind of preparation method of erosion resistant super hydrophobic surface |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290147B (en) * | 2011-06-22 | 2013-04-24 | 华北电力大学（保定） | Method for preparing super hydrophobic ice covering resistant aluminum twisted wire |
| CN102290147A (en) * | 2011-06-22 | 2011-12-21 | 华北电力大学（保定） | Method for preparing super hydrophobic ice covering resistant aluminum twisted wire |
| CN102418098A (en) * | 2011-09-16 | 2012-04-18 | 东南大学 | Low-damage preparation method of super-hydrophobic surface of industrial aluminum foil |
| CN102310037A (en) * | 2011-09-28 | 2012-01-11 | 湖南工业大学 | Method for preparing super-hydrophobic colored aluminum alloy |
| CN102310037B (en) * | 2011-09-28 | 2013-07-17 | 湖南工业大学 | Method for preparing super-hydrophobic colored aluminum alloy |
| CN103243319A (en) * | 2012-04-12 | 2013-08-14 | 东莞市才智坊新材料有限公司 | Super-hydrophobic phosphating film aluminum alloy material and preparation method thereof |
| CN102677059A (en) * | 2012-05-23 | 2012-09-19 | 江苏大学 | Super-hydrophobic aluminium and preparation method thereof |
| CN103204457B (en) * | 2013-03-14 | 2015-10-07 | 吉林大学 | A kind of preparation method of aluminium alloy bionic super-hydrophobic surface |
| CN103204457A (en) * | 2013-03-14 | 2013-07-17 | 吉林大学 | Production method of aluminum alloy bionic superhydrophobic surface |
| CN103409754A (en) * | 2013-07-29 | 2013-11-27 | 西安交通大学 | Etching-based surface super-hydrophobicity treatment technology for aluminium material |
| 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 |
| CN104313565A (en) * | 2014-11-19 | 2015-01-28 | 东莞市汇林包装有限公司 | Method for preparing super-hydrophobic copper foil |
| CN104313565B (en) * | 2014-11-19 | 2017-02-08 | 东莞市汇林包装有限公司 | Method for preparing super-hydrophobic copper foil |
| CN106148958A (en) * | 2016-01-12 | 2016-11-23 | 机械科学研究总院先进制造技术研究中心 | Super hydrophilic/super-hydrophobic Treatment of Metal Surface automatic production line based on micro-nano structure |
| CN106356474A (en) * | 2016-11-02 | 2017-01-25 | 广东安德力新材料有限公司 | Aluminum plastic compound film with excellent heat sealing property and low-temperature flexibility |
| CN107649352A (en) * | 2017-09-19 | 2018-02-02 | 重庆大学 | A kind of fast method for preparing of the super-hydrophobic extreme wetability aluminum alloy materials of large scale |
| CN109628978A (en) * | 2019-01-22 | 2019-04-16 | 中国科学院海洋研究所 | A kind of preparation method of erosion resistant super hydrophobic surface |
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