CN102383162A - Method for preparing super-hydrophobic aluminum alloy with low carbon, energy saving and environmental protection - Google Patents
Method for preparing super-hydrophobic aluminum alloy with low carbon, energy saving and environmental protection Download PDFInfo
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- CN102383162A CN102383162A CN2011102988483A CN201110298848A CN102383162A CN 102383162 A CN102383162 A CN 102383162A CN 2011102988483 A CN2011102988483 A CN 2011102988483A CN 201110298848 A CN201110298848 A CN 201110298848A CN 102383162 A CN102383162 A CN 102383162A
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Abstract
The invention discloses a method for preparing a super-hydrophobic aluminum alloy with low consumption and energy saving. The method comprises the following steps: 1) immersing a flat aluminum alloy sheet material in a hydrochloric acid solution with 2mol/L and pretreating for 20 minutes to remove a surface oxide-film, then removing the aluminum alloy sheet material and fully cleaning by deionized water, drying the aluminum alloy sheet material in a constant temperature furnace with the temperature of 80 DEG C for 60-90 minutes; 2) preparing a NaCl solution with 0.4-1mol/L and taking as an electrolyte solution; connecting the aluminum alloy without the oxide-film and a copper sheet with the purity of 3N by a copper lead, Placing in the prepared sodium chloride and heating to the temperature of 80 DEG C and reacting for 30 minutes, then taking out the aluminum alloy sheet material and fully cleaning by deionized water, immersing in a potassium permanganate solution with 0.5mol/L for 0.5-1.5 hours, then cleaning by deionized water and drying in the furnace at the temperature of 80-100 DEG C for 0.5-1.5 hours; 3) immersing a stearic acid ethanol solution with mass fraction of 1% for 20-40 minutes, drying for 20-28 hours under the room temperature atmosphere environment with relative humidity of 60-75% to obtain the aluminum alloy super-hydrophobic surface.
Description
Technical field
The present invention relates in the atmosphere at room temperature environment, adopt the method for low consumption environment protection to prepare super-hydrophobic aluminum alloy surface.
Background technology
In recent years, super hydrophobic surface (contact angle of material surface and water is greater than 150o, and water droplet roll angle from the teeth outwards is less than 10 o) has caused extensive studies interest.Because the contact area of liquid on super hydrophobic surface is very little, can suppress phenomenons such as oxidation on metal surface, 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; Therefore, super hydrophobic surface all is with a wide range of applications in fields such as outdoor antenna, exterior coating, steamer, biologic medical apparatus, microfluid, windshields.Duraluminum is most widely used one type of non-ferrous metal structured material in the industry, is widely used in aerospace, automobile, machinofacture, boats and ships and chemical industry.Has good electroconductibility, thermal conductivity, working plasticity, corrosion stability and higher intensity.Yet the metallic surface that aluminium alloy surface treatment method obtained commonly used does not have self-cleaning property, and contaminated easily, the preparation of super-hydrophobic duraluminum successfully will help to improve the application efficiency and the scope of duraluminum.The duraluminum super hydrophobic surface is really used in actual industrial and agricultural production and daily life, and its preparation technology is crucial, also is the basis.In recent years, developed the technology of some preparation duraluminum super hydrophobic surfaces, like chemical Vapor deposition process, electrochemical deposition method, polyelectrolyte alternating deposit method, anonizing, plasma method, chemical method for etching 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.The technology of therefore inventing a kind of low-carbon energy-saving environmental protection prepares super-hydrophobic aluminum alloy surface technology 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 the cost low power consuming is few.
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:
(1), smooth aluminum alloy plate materials was immersed in the 2 mol/L hydrochloric acid solns pre-treatment 20 minutes, remove surface film oxide.After taking out aluminum alloy plate materials then and fully cleaning, 80 with deionized water
ODrying is 60～90 minutes in the constant temperature roaster of C;
(2), preparation 0.4～1mol/L NaCl solution is as electrolyte solution; Use copper conductor to link to each other the duraluminum of removing sull, put into the sodium chloride solution of being prepared and be heated to 80 with the copper sheet of purity as 3N
OC reacted 30 minutes.Take 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 0.5～1.5 hour, use washed with de-ionized water then, and in furnace temperature 80-100 ℃ dry 0.5～1.5 hour;
(3), in massfraction is 1% Triple Pressed Stearic Acid ethanolic soln, soaked 20～40 minutes, be 60～75% in relative humidity, atmosphere at room temperature environment dry 20～28 hours down can be prepared the duraluminum super hydrophobic surface.
In the above-mentioned steps (2) aluminum alloy plate materials was immersed in the salts solution 30 minutes; 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 80～100 ℃ of furnace temperature.
Being to soak 30 minutes in 1% the Triple Pressed Stearic Acid ethanolic soln at massfraction in the above-mentioned steps (3), 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 electrolyte solution is: sodium-chlor.Used surface-coated material is: Triple Pressed Stearic Acid, ethanol.Super-hydrophobic base material can be fine aluminium or duraluminum.The contact angle of super-hydrophobic aluminum alloy surface and water between 150o～160o, water droplet in the roll angle of material surface less than 10o.The superhydrophobic property of super-hydrophobic aluminum alloy surface is stable, is that-5 ℃～40 ℃, relative humidity are to place half a year in 30%～75% the environment in TR, and superhydrophobic property does not change.
In sum, the preparing method's operating procedure with super-hydrophobic duraluminum of the present invention simple, low consumption environment protection, favorable reproducibility, need not any expensive device, also do not need the complex chemical treatment process, be easy to industrialization, have the good industrial application 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
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Embodiment 1:
At first, smooth aluminum alloy plate materials immersed in the 2 mol/L hydrochloric acid solns carried out pre-treatment 20 minutes, remove surface film oxide.After the taking-up aluminum alloy plate materials fully cleans with deionized water, 80
ODrying is 60 minutes in the constant temperature roaster of C; Cofabrication 0.4 mol/L NaCl solution is as electrolyte solution; Use copper conductor to link to each other the duraluminum of removing sull, put into the sodium chloride solution of being prepared and be heated to 80 with the copper sheet of purity as 3N
OC reacted 30 minutes.Take 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, and use washed with de-ionized water, drying is 1 hour in 100 ℃ of furnace temperature.At massfraction is to soak 30 minutes in 1% the Triple Pressed Stearic Acid ethanolic soln, is 75% in relative humidity, and atmosphere at room temperature environment dry 24 hours down can be prepared the duraluminum super hydrophobic surface.With the wettability of this coatingsurface of OCA20 contact angle tester test, referring to Fig. 1 and Fig. 2, the result shows that the contact angle of this surface and water is 154 ± 2o.
Embodiment 2:
At first, smooth aluminum alloy plate materials immersed in the 2 mol/L hydrochloric acid solns carried out pre-treatment 20 minutes, remove surface film oxide.After the taking-up aluminum alloy plate materials fully cleans with deionized water, 80
ODrying is 70 minutes in the constant temperature roaster of C; Cofabrication 0.5 mol/L NaCl solution is as electrolyte solution; Use copper conductor to link to each other the duraluminum of removing sull, put into the sodium chloride solution of being prepared and be heated to 80 with the copper sheet of purity as 3N
OC reacted 40 minutes.Take 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 1.5 hours, use washed with de-ionized water then, and in 80 ℃ of furnace temperature dry 1 hour.At massfraction is to soak 25 minutes in 1% the Triple Pressed Stearic Acid ethanolic soln, is 60% in relative humidity, and atmosphere at room temperature environment dry 20 hours down can be prepared the duraluminum super hydrophobic surface.
Embodiment 3:
At first, smooth aluminum alloy plate materials immersed in the 2 mol/L hydrochloric acid solns carried out pre-treatment 20 minutes, remove surface film oxide.After the taking-up aluminum alloy plate materials fully cleans with deionized water, 80
ODrying is 80 minutes in the constant temperature roaster of C; Cofabrication 0.8 mol/L NaCl solution is as electrolyte solution; Use copper conductor to link to each other the duraluminum of removing sull, put into the sodium chloride solution of being prepared and be heated to 80 with the copper sheet of purity as 3N
OC reacted 30 minutes.Take 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 80 ℃ of furnace temperature dry 0.5 hour.At massfraction is to soak 28 minutes in 1% the Triple Pressed Stearic Acid ethanolic soln, is 75% in relative humidity, and atmosphere at room temperature environment dry 23 hours down can be prepared the duraluminum super hydrophobic surface.
Embodiment 4:
At first, smooth aluminum alloy plate materials immersed in the 2 mol/L hydrochloric acid solns carried out pre-treatment 20 minutes, remove surface film oxide.After the taking-up aluminum alloy plate materials fully cleans with deionized water, 80
ODrying is 80 minutes in the constant temperature roaster of C; Cofabrication 1 mol/L NaCl solution is as electrolyte solution; Use copper conductor to link to each other the duraluminum of removing sull, put into the sodium chloride solution of being prepared and be heated to 80 with the copper sheet of purity as 3N
OC reacted 20 minutes.Take 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 1.2 hours, 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 Triple Pressed Stearic Acid ethanolic soln, is 75% in relative humidity, and atmosphere at room temperature environment dry 28 hours down can be prepared the duraluminum super hydrophobic surface.
Claims (3)
1. the preparation method at aluminum alloy surface structure super-drainage structure is characterized in that: comprise the steps:
(1), smooth aluminum alloy plate materials was immersed in the 2 mol/L hydrochloric acid solns pre-treatment 20 minutes, remove surface film oxide,
After taking out aluminum alloy plate materials then and fully cleaning, 80 with deionized water
ODrying is 60～90 minutes in the constant temperature roaster of C;
(2), preparation 0.4～1mol/L NaCl solution is as electrolyte solution; Use copper conductor to link to each other the duraluminum of removing sull, put into the sodium chloride solution of being prepared and be heated to 80 with the copper sheet of purity as 3N
OC reacted 30 minutes;
Take 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 0.5～1.5 hour, use washed with de-ionized water then, and in furnace temperature 80-100 ℃ dry 0.5～1.5 hour;
(3), in massfraction is 1% Triple Pressed Stearic Acid ethanolic soln, soaked 20～40 minutes, be 60～75% in relative humidity, atmosphere at room temperature environment dry 20～28 hours down can be prepared the duraluminum super hydrophobic surface.
2. according to claim 1ly make up the preparation method of super-drainage structure, it is characterized in that: in the above-mentioned steps (2) aluminum alloy plate materials linked to each other through copper conductor with the copper coin material and together immerse 80 in aluminum alloy surface
OReaction is 30 minutes in the C sodium-chlor, takes out then to immerse in the 0.5mol/L potassium permanganate solution after aluminum alloy plate materials fully cleans with deionized water and soaks 1 hour, uses 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 Triple Pressed Stearic Acid ethanolic soln at massfraction in the above-mentioned steps (3); In relative humidity is 60～75%, atmosphere at room temperature environment dry 24 hours down.
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Cited By (7)
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| CN106319599A (en) * | 2016-08-31 | 2017-01-11 | 黄山天马铝业有限公司 | Efficient hydrophobic aluminum foil and preparation method therefor |
| CN109457286A (en) * | 2018-12-10 | 2019-03-12 | 歌尔股份有限公司 | The surface treatment method of aluminum alloy materials |
| CN111647922A (en) * | 2020-06-30 | 2020-09-11 | 上海电力大学 | Method for constructing aluminum alloy super-hydrophobic surface through electrodeposition |
| CN111926363A (en) * | 2020-08-05 | 2020-11-13 | 上海电力大学 | Environment-friendly long-acting durable aluminum alloy surface treatment process |
| CN112871953A (en) * | 2020-12-24 | 2021-06-01 | 东海县宏巨金属材料有限公司 | Oxide layer removing device for waste aluminum recovery and implementation method thereof |
| CN113667926A (en) * | 2021-07-19 | 2021-11-19 | 中国科学院宁波材料技术与工程研究所 | Preparation method of carbon-based coating on aluminum alloy surface and carbon-based coating on aluminum alloy surface |
| CN114569991A (en) * | 2022-03-08 | 2022-06-03 | 界首市扬泰体育用品科技有限公司 | Antibacterial and sweat-releasing pickles racket and production process thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106319599A (en) * | 2016-08-31 | 2017-01-11 | 黄山天马铝业有限公司 | Efficient hydrophobic aluminum foil and preparation method therefor |
| CN109457286A (en) * | 2018-12-10 | 2019-03-12 | 歌尔股份有限公司 | The surface treatment method of aluminum alloy materials |
| CN111647922A (en) * | 2020-06-30 | 2020-09-11 | 上海电力大学 | Method for constructing aluminum alloy super-hydrophobic surface through electrodeposition |
| CN111647922B (en) * | 2020-06-30 | 2021-08-10 | 上海电力大学 | Method for constructing aluminum alloy super-hydrophobic surface through electrodeposition |
| CN111926363A (en) * | 2020-08-05 | 2020-11-13 | 上海电力大学 | Environment-friendly long-acting durable aluminum alloy surface treatment process |
| CN111926363B (en) * | 2020-08-05 | 2022-06-28 | 上海电力大学 | Environment-friendly long-acting durable aluminum alloy surface treatment process |
| CN112871953A (en) * | 2020-12-24 | 2021-06-01 | 东海县宏巨金属材料有限公司 | Oxide layer removing device for waste aluminum recovery and implementation method thereof |
| CN112871953B (en) * | 2020-12-24 | 2022-08-16 | 东海县宏巨金属材料有限公司 | Oxide layer removing device for waste aluminum recovery and implementation method thereof |
| CN113667926A (en) * | 2021-07-19 | 2021-11-19 | 中国科学院宁波材料技术与工程研究所 | Preparation method of carbon-based coating on aluminum alloy surface and carbon-based coating on aluminum alloy surface |
| CN114569991A (en) * | 2022-03-08 | 2022-06-03 | 界首市扬泰体育用品科技有限公司 | Antibacterial and sweat-releasing pickles racket and production process thereof |
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Application publication date: 20120321 |