CN102912345B - Aluminium alloy surface corrosion control method - Google Patents
Aluminium alloy surface corrosion control method Download PDFInfo
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- CN102912345B CN102912345B CN201210419946.2A CN201210419946A CN102912345B CN 102912345 B CN102912345 B CN 102912345B CN 201210419946 A CN201210419946 A CN 201210419946A CN 102912345 B CN102912345 B CN 102912345B
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Abstract
The invention provides an aluminium alloy surface corrosion control method, and relates to the field of metal surface coating treatment. The method comprises the following steps: cleaning and drying; preparing nano TiO2 sol; preparing aluminium alloy coated with an inorganic membrane; preparing an organic membrane solution, mixing silane coupling agent, absolute ethyl alcohol and water, adding methanoic acid to serve as a catalyst, adjusting the pH value to 9-10, sealing after stirring uniformly, placing in a water bath of 30-40 DEG C for reaction to form gel after sonic oscillation, thereby obtaining organogel; mixing organogel, tetrahydrofuran and firming agent uniformly, so as to obtain the organic membrane solution; coating the surface of the aluminium alloy, coated with the inorganic membrane, with the organic membrane solution, so as to obtain the aluminium alloy with the surface coated with the organic membrane and the inorganic membrane. According to the invention, through the sol-gel process, a compact nano TiO2 inorganic membrane is formed on the surface of the aluminium alloy, and the organic membrane is coated on the surface of the aluminium alloy, so that the aluminium alloy can achieve excellent surface corrosion resistance.
Description
Technical field
The present invention relates to metallic surface coating process field, be specifically related to a kind of aluminum alloy surface anti-corrosion method.
Background technology
The one of the main reasons that corrosion occurs metal base is because surface contacts with the atmosphere of electrolyte solution or humidity; produce various corrosion; and aluminium alloy surface in air can form the protective membrane of aluminum oxide, under normal atmospheric environment, this protective membrane can be protected aluminum alloy base material effectively.But in containing electrolytical moisture, ocean surface atmospheric environment for example, aluminum alloy surface there will be spot corrosion, and havoc product appearance causes product to shorten work-ing life simultaneously.In order to improve the corrosion resistance nature (or salt spray resistance) of alloy product, conventionally to carry out surface treatment to aluminum alloy base material, as anodic oxidation, baking vanish etc., but all there is larger environmental pollution in these techniques, so be badly in need of new aluminium alloy surface treatment method to replace the technology such as anodic oxidation, baking vanish.
In recent years, a lot of to metal surface treatment process research both at home and abroad, wherein in aseptic technic, vacuum coating technology (PVD) is a kind of compared with the coating technique of environmental protection, PVD rete has high rigidity, high-wearing feature, good advantages such as chemical stability, therefore more and more wider in the application in protecting metallic surface field, and aluminium alloy is due to the differing greatly of its standard potential and the functional rete of many PVD, very easily cause galvanic corrosion, alloy product was lost efficacy.In aluminum alloy surface coating, be formed with organic coating research at present more, CN1341775A discloses by nine kinds of surface treatment liquids that raw material forms such as sodium lauryl sulphate, sodium hydroxide, citric acids, and by being immersed in aluminum alloy surface, forms coating; CN101139500A discloses the treatment solution by compositions such as silane coupling agent, organometallic compound, silicate, phosphoric acid, by use line rod balancedly blade coating in aluminum alloy surface, heating, drying forms coating, to improve outward appearance and the physical and chemical performance of aluminium alloy.But the thickness of coating that these two kinds of processing methodes form is thinner, and lower with aluminum alloy surface sticking power, and physical strength is bad, and scarcely high temperature resistant, in corrosive medium, coating easily comes off, and preservative effect is poor.Summary of the invention:
In order to overcome in prior art, aluminum alloy surface protective membrane physical strength is bad, non-refractory, and the problem that erosion resistance is poor the invention provides a kind of aluminum alloy surface preserving method.
Object of the present invention adopts following technical scheme to realize.
An aluminum alloy surface anti-corrosion method, its feature is in comprising the steps:
(1) clean and be dried: pending aluminium alloy being put into organic solution ultrasonic cleaning, then with deionized water, carry out rinsing, take out described aluminium alloy and dry;
(2) prepare nano-TiO
2colloidal sol: the Butyl Phthalate of take is prepared nano-TiO as raw material
2colloidal sol;
(3) aluminium alloy of mineral membrane has been wrapped up in preparation: cleaning and dried aluminium alloy are immersed in to nano-TiO
2colloidal sol,, taking-up aluminium alloy is put in air and is dried, and dries and obtain the aluminium alloy that has wrapped up mineral membrane in baking oven.
(4) prepare organic coating solution: by silane coupling agent, dehydrated alcohol and water, according to volume ratio, be 1: 8～12: 3～5 mixing, add formic acid as catalyzer, regulating pH is 9～10, sealing after stirring, in the rearmounted 30-40 ℃ of water-bath of sonic oscillation, react to gel, obtain organogel; The add-on of formic acid is the 5-15% of silane coupling agent volume.
By organogel, tetrahydrofuran (THF) and solidifying agent, according to mass ratio, be 100:(300～400): (2～4) mix, and make organic membrane solution;
(5) in the aluminum alloy surface of having wrapped up mineral membrane, coat organic membrane solution, obtain being coated with the aluminium alloy of machine film and mineral membrane.
Described in step (1), organic solution is ethanol, Virahol, methyl alcohol or acetone, ultrasonic cleaning 30～60 minutes, and bake out temperature is 70 ℃～100 ℃.
Step (2) be take Butyl Phthalate and is prepared nano-TiO as raw material
2the concrete grammar of colloidal sol is:
According to volume ratio 1:4～8, butyl (tetra) titanate is dissolved in to dehydrated alcohol, adds methyl ethyl diketone, stir 15～30 min, obtain solution A; The mol ratio of described methyl ethyl diketone and butyl (tetra) titanate is 0.3～0.5:1;
Nitric acid and deionized water are added in dehydrated alcohol, stir 15～30 min, obtain solution B;
Solution B is added drop-wise in solution A, and 18～25 degree stir 2～4h, obtain nano-TiO
2colloidal sol; In nitric acid in described solution B and solution A, the mol ratio of butyl (tetra) titanate is 0.2～0.4:1.
Soak time 10～30 min described in step (3), in air, flash-off time is 0.5-1.5h, and oven temperature is 80 ℃～100 ℃, and drying time is 2～4h.
The described silane coupling agent of step (4) is vinyltrimethoxy silane, γ-(methacryloxypropyl) propyl trimethoxy silicane or γ-epoxypropyl ether Trimethoxy silane; Mixing speed is 300-400 r/min, and churning time is 2～4h; The sonic oscillation time is 1h～3h; Described solidifying agent is benzoyl peroxide.
Beneficial effect: the invention provides a kind of aluminum alloy surface preserving method, form fine and close nano-TiO by sol gel process in aluminum alloy surface
2mineral membrane, utilizes nano-TiO
2excellent photocatalysis effect, reduces the corrosive nature of ionogen moisture in aluminium alloy surrounding environment, then at aluminum alloy surface integument organic membrane, realizes the antiseptic property of aluminum alloy surface excellence.In this way the organic-inorganic film of preparation, can combine with chemical bond with metallic surface, has greatly strengthened adhesive ability and the resistance to corrosion of film.Preparation technology's environmental protection of material is the environment-friendly material of desirable effectively substitute chromium hydrochlorate oxide film.
Embodiment
Below by embodiment, further describe technical scheme of the present invention.
embodiment 1:
(1) clean and be dried: pending aluminium alloy is put into acetone ultrasonic cleaning 30 minutes, then with deionized water, carry out rinsing and remove inorganic and organic pollutant, take out aluminium alloy and put into 70 ℃ of baking oven flash baking surface waters, metal is thoroughly eliminated rust, it is totally smooth that surface reaches;
(2) prepare nano-TiO
2colloidal sol: the butyl (tetra) titanate of take is prepared nano-TiO as raw material
2colloidal sol.
Butyl (tetra) titanate is dissolved in to dehydrated alcohol, and the volume ratio of butyl (tetra) titanate and dehydrated alcohol is 1:4.Add the methyl ethyl diketone of 0.3 times of described butyl (tetra) titanate mole number as inhibitor, 20 degree stir 15 min, obtain solution A, stand-by;
Get 100ml dehydrated alcohol, add the nitric acid of 10ml and the deionized water of 20ml, stirring at room 15min, obtains solution B.
Solution B is added drop-wise in solution A, and 20 degree stir 2h, obtain nano-TiO
2colloidal sol.In described solution B, in nitric acid and solution A, the mol ratio of butyl (tetra) titanate is 0.2:1.
(3) aluminium alloy of mineral membrane has been wrapped up in preparation: cleaning and dried aluminium alloy are immersed in to nano-TiO
2colloidal sol, soaks 10min, takes out and in air, dries 1h, continues to dry 2h in the baking oven of 80 ℃, has obtained wrapping up the aluminium alloy of mineral membrane.
(4) preparation of organic membrane solution: vinyltrimethoxy silane is placed in beaker, add dehydrated alcohol and water, the first acid as catalyst that adds again silane volume 15%, regulate pH value to 9, after stirring 2h by electric blender make each evenly miscible mutually under 400rpm condition, by solution good seal, at Ultrasonic Cleaners, carry out sonic oscillation 1h, finally be placed in 35 ℃ of water-baths and react to gel, obtain organogel; The volume ratio of vinyltrimethoxy silane, dehydrated alcohol and water is 1:8:3.
Get organogel and be put in beaker, add the tetrahydrofuran (THF) (THF) of 3 times of organogel quality and it is dissolved, add the solidifying agent benzoyl peroxide of organogel quality 2%, adopt magnetic stirrer to stir, this solution is organic membrane solution.
(5) with lifting coating device, in the aluminum alloy surface of having wrapped up mineral membrane, coat organic membrane solution, obtain the aluminium alloy that surface has been coated organic membrane and mineral membrane.The residence time of aluminium alloy in organic membrane solution is 1min, and pull rate is 27cm/min, repeatedly film 3 times, both.
embodiment 2:
(1) clean and be dried: pending aluminium alloy is put into ethanol ultrasonic cleaning 60 minutes, then with deionized water, carry out rinsing and remove inorganic and organic pollutant, take out aluminium alloy and put into 100 ℃ of baking oven flash baking surface waters, metal is thoroughly eliminated rust, it is totally smooth that surface reaches;
(2) prepare nano-TiO
2colloidal sol: the butyl (tetra) titanate of take is prepared nano-TiO as raw material
2colloidal sol.
Butyl (tetra) titanate is dissolved in to dehydrated alcohol, and the volume ratio of butyl (tetra) titanate and dehydrated alcohol is 1:8.Add the methyl ethyl diketone of 0.5 times of described butyl (tetra) titanate mole number as inhibitor, 25 degree stir 30min, obtain solution A, stand-by;
Get 100ml dehydrated alcohol, add the nitric acid of 10ml and the deionized water of 20ml, 25 degree stir 30min, obtain solution B.
Solution B is added drop-wise in solution A, and 25 degree stir 4h, obtain nano-TiO
2colloidal sol.In described solution B, in nitric acid and solution A, the mol ratio of butyl (tetra) titanate is 0.4:1.
(3) aluminium alloy of mineral membrane has been wrapped up in preparation: cleaning and dried aluminium alloy are immersed in to nano-TiO
2colloidal sol, soaks 30min, takes out and in air, dries 1.5h, continues to dry 4h in the baking oven of 100 ℃, has obtained wrapping up the aluminium alloy of mineral membrane.
(4) preparation of organic membrane solution: γ-(methacryloxypropyl) propyl trimethoxy silicane is placed in beaker, add dehydrated alcohol and water, the first acid as catalyst that adds again γ-(methacryloxypropyl) propyl trimethoxy silicon volume 10%, regulate pH value to 10, after stirring 4h and make each evenly miscible mutually by electric blender, by solution good seal, at Ultrasonic Cleaners, carry out sonic oscillation 3h, finally be placed in 40 ℃ of water-baths and react to gel, obtain organogel; The volume ratio of γ-(methacryloxypropyl) propyl trimethoxy silicane, dehydrated alcohol and water is 1:12:5.
Get organogel and be put in beaker, add the tetrahydrofuran (THF) (THF) of 4 times of organogel quality and it is dissolved, add the solidifying agent benzoyl peroxide of organogel quality 4%, adopt magnetic stirrer to stir, this solution is organic membrane solution.
(5) with lifting coating device, in the aluminum alloy surface of having wrapped up mineral membrane, coat organic membrane solution, obtain the aluminium alloy that surface has been coated organic membrane and mineral membrane.The residence time of aluminium alloy in organic membrane solution is 1min, and pull rate is 27cm/min, repeatedly film 3 times, both.
Embodiment 3
(1) clean and be dried: pending aluminium alloy is put into ethanol ultrasonic cleaning 45 minutes, then with deionized water, carry out rinsing and remove inorganic and organic pollutant, take out aluminium alloy and put into 85 ℃ of baking oven flash baking surface waters, metal is thoroughly eliminated rust, it is totally smooth that surface reaches;
(2) prepare nano-TiO
2colloidal sol: the butyl (tetra) titanate of take is prepared nano-TiO as raw material as raw material
2colloidal sol.
Butyl (tetra) titanate is dissolved in to dehydrated alcohol, and the volume ratio of butyl (tetra) titanate and dehydrated alcohol is 1:6.Be incorporated as the methyl ethyl diketone of 0.4 times of butyl (tetra) titanate mole number as inhibitor, 18 degree stir 20min, obtain solution A, stand-by;
Get 100ml dehydrated alcohol, add the nitric acid of 10ml and the deionized water of 20ml, 18 degree stir 15min, obtain solution B.
Solution B is added drop-wise in solution A, and 20 ℃ are stirred 2h, obtain nano-TiO
2colloidal sol.In described solution B, in nitric acid and solution A, the mol ratio of butyl (tetra) titanate is 0.3:1.
(3) aluminium alloy of mineral membrane has been wrapped up in preparation: will clean and dried aluminium alloy immersion nano-TiO
2colloidal sol, soaks 20min, takes out and in air, dries 0.5h, continues to dry 3h in the baking oven of 90 ℃, has obtained wrapping up the aluminium alloy of mineral membrane.
(4) preparation of organic membrane solution: γ-epoxypropyl ether Trimethoxy silane is placed in beaker, add dehydrated alcohol and water, the first acid as catalyst that adds again γ-epoxypropyl ether Trimethoxy silane volume 5%, regulate pH value to 9.5, by electric blender, stir 3h(rotating speed 300rpm) make each evenly miscible mutually after, by solution good seal, at Ultrasonic Cleaners, carry out sonic oscillation 2h, finally be placed in 30 ℃ of water-baths and react to gel, obtain organogel; The volume ratio of γ-epoxypropyl ether Trimethoxy silane, dehydrated alcohol and water is 1:10:4.
Get organogel and be put in beaker, add the tetrahydrofuran (THF) (THF) of 3.5 times of organogel quality and it is dissolved, add the solidifying agent benzoyl peroxide of organogel quality 3%, adopt magnetic stirrer to stir, this solution is organic membrane solution.
(5) by constant speed, lift coating device and coat organic membrane solution in the aluminum alloy surface of having wrapped up mineral membrane, obtain the aluminium alloy that surface has been coated organic membrane and mineral membrane.The residence time of aluminium alloy in coating solution is 1min, and pull rate is 27cm/min, repeatedly film 3 times, both.
Al-alloy parts and the untreated Al-alloy parts got after embodiment 1,2 and 3 processes carry out salt fog and brine soaking experiment, result shows that the surface corrosion in corrosive atmosphere of untreated Al-alloy parts is serious, produce a large amount of corrosion impurity, and treated Al-alloy parts surface in the salt fog of 16 days and brine soaking experiment is unchanged, the organic-inorganic film on Al-alloy parts surface has good adhesive ability and resistance to corrosion.
Claims (1)
1. an aluminum alloy surface anti-corrosion method, its feature is in comprising the steps:
(1) clean and be dried: pending aluminium alloy being put into organic solution ultrasonic cleaning, then with deionized water, carry out rinsing, take out described aluminium alloy and dry;
(2) prepare nano-TiO
2colloidal sol: the Butyl Phthalate of take is prepared nano-TiO as raw material
2colloidal sol;
(3) aluminium alloy of mineral membrane has been wrapped up in preparation: cleaning and dried aluminium alloy are immersed in to nano-TiO
2colloidal sol, taking-up aluminium alloy is put in air and is dried, and dries and obtain the aluminium alloy that has wrapped up mineral membrane in baking oven;
(4) prepare organic coating solution: by silane coupling agent, dehydrated alcohol and water, according to volume ratio, be 1: (8～12): (3～5) mix, add formic acid as catalyzer, regulating pH is 9～10, sealing after stirring, in the rearmounted 30-40 ℃ of water-bath of sonic oscillation, react to gel, obtain organogel; The add-on of formic acid is 5～15% of silane coupling agent volume; By organogel, tetrahydrofuran (THF) and solidifying agent, according to mass ratio, be 100: (300～400): (2～4) mix and make organic membrane solution;
(5) in the aluminum alloy surface of having wrapped up mineral membrane, coat organic membrane solution, obtain being coated with the aluminium alloy of machine film and mineral membrane; Described in step (1), organic solution is ethanol, Virahol, methyl alcohol or acetone, ultrasonic cleaning 30～60 minutes, and bake out temperature is 70～100 ℃;
Step (2) be take Butyl Phthalate and is prepared nano-TiO as raw material
2the concrete grammar of colloidal sol is: according to volume ratio 1:(4～8) butyl (tetra) titanate is dissolved in to dehydrated alcohol, add methyl ethyl diketone, stir 15～30min, obtain solution A; The mol ratio of described methyl ethyl diketone and butyl (tetra) titanate is (0.3～0.5): 1; Nitric acid and deionized water are added in dehydrated alcohol, stir 15～30min, obtain solution B; Solution B is added drop-wise in solution A, and 18～25 ℃ are stirred 2～4h, obtain nano-TiO
2colloidal sol; In nitric acid in described solution B and solution A, the mol ratio of butyl (tetra) titanate is 0.2～0.4:1;
Soak time 10～30min described in step (3), in air, flash-off time is 0.5～1.5h, and oven temperature is 80～100 ℃, and drying time is 2～4h;
The described silane coupling agent of step (4) is vinyltrimethoxy silane, γ-(methacryloxypropyl) propyl trimethoxy silicane or γ-epoxypropyl ether Trimethoxy silane, mixing speed is 300～400r/min, churning time is 2～4h, the sonic oscillation time is 1～3h, and described solidifying agent is benzoyl peroxide.
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| CN103668189A (en) * | 2013-12-09 | 2014-03-26 | 常熟市大康汽车座垫有限责任公司 | Aluminum alloy surface anticorrosion method |
| CN103695904A (en) * | 2013-12-26 | 2014-04-02 | 常熟市美尔特金属制品有限公司 | Metal surface treatment method |
| CN103757619A (en) * | 2013-12-26 | 2014-04-30 | 常熟市美尔特金属制品有限公司 | Metal surface treating agent |
| CN104018144A (en) * | 2014-06-20 | 2014-09-03 | 合肥长城制冷科技有限公司 | Aluminum alloy surface anticorrosion process |
| CN104612369B (en) * | 2014-12-30 | 2017-05-03 | 南京信息工程大学 | Preparing method of anti-microbial plastic-wood floor |
| CN105331962A (en) * | 2015-09-29 | 2016-02-17 | 安徽岳塑汽车工业股份有限公司 | Forming liquid of anticorrosion aluminum alloy curing film and preparation method of forming liquid |
| CN105331964A (en) * | 2015-09-29 | 2016-02-17 | 安徽瑞林汽配有限公司 | Rust-protection aluminum alloy curing film and preparation method thereof |
| CN105274516A (en) * | 2015-11-04 | 2016-01-27 | 合肥海源机械有限公司 | Micro-emulsified forming liquid for cured film of aluminum alloy and preparation method of micro-emulsified forming liquid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1539888A (en) * | 2003-08-25 | 2004-10-27 | 胡立江 | Organic and non-organic hybrid, preservative, protective film |
| CN1211500C (en) * | 2003-03-27 | 2005-07-20 | 厦门大学 | Metal surface anti-corrosion method based on surface nanometer construct |
| EP2223975A1 (en) * | 2007-12-07 | 2010-09-01 | Dipsol Chemicals Co., Ltd. | Surface-treating aqueous solution and treatment methods for forming corrosion-resistant coating film over zinc or zinc alloy deposit |
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| AU2002367628A1 (en) * | 2001-01-29 | 2003-10-08 | The Board Of Regents For Oklahoma State University | Organic/inorganic multilayer coating system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1211500C (en) * | 2003-03-27 | 2005-07-20 | 厦门大学 | Metal surface anti-corrosion method based on surface nanometer construct |
| CN1539888A (en) * | 2003-08-25 | 2004-10-27 | 胡立江 | Organic and non-organic hybrid, preservative, protective film |
| EP2223975A1 (en) * | 2007-12-07 | 2010-09-01 | Dipsol Chemicals Co., Ltd. | Surface-treating aqueous solution and treatment methods for forming corrosion-resistant coating film over zinc or zinc alloy deposit |
Non-Patent Citations (2)
| Title |
|---|
| TiO2溶胶的制备及其胶凝过程影响因素分析;温敏等;《表面技术》;20040229;第33卷(第1期);第30-31、39页及图1 * |
| 温敏等.TiO2溶胶的制备及其胶凝过程影响因素分析.《表面技术》.2004,第33卷(第1期),第30-31、39页. |
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