CN114351207A - Preparation process of aluminum and aluminum alloy anodic oxidation fluorescent film - Google Patents
Preparation process of aluminum and aluminum alloy anodic oxidation fluorescent film Download PDFInfo
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 44
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 34
- 230000003647 oxidation Effects 0.000 title claims abstract description 30
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 46
- WSRHMJYUEZHUCM-UHFFFAOYSA-N perylene-1,2,3,4-tetracarboxylic acid Chemical class C=12C3=CC=CC2=CC=CC=1C1=C(C(O)=O)C(C(O)=O)=C(C(O)=O)C2=C1C3=CC=C2C(=O)O WSRHMJYUEZHUCM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000012670 alkaline solution Substances 0.000 claims abstract description 13
- 238000004043 dyeing Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 238000005406 washing Methods 0.000 claims description 29
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 28
- -1 aluminum ions Chemical class 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 12
- 238000005498 polishing Methods 0.000 claims description 11
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- MIMUSZHMZBJBPO-UHFFFAOYSA-N 6-methoxy-8-nitroquinoline Chemical compound N1=CC=CC2=CC(OC)=CC([N+]([O-])=O)=C21 MIMUSZHMZBJBPO-UHFFFAOYSA-N 0.000 claims description 6
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- JNHGVRVRUCTICD-UHFFFAOYSA-N perylene-1,2,3,4-tetracarboxylic acid;potassium Chemical compound [K].C=12C3=CC=CC2=CC=CC=1C1=C(C(O)=O)C(C(O)=O)=C(C(O)=O)C2=C1C3=CC=C2C(=O)O JNHGVRVRUCTICD-UHFFFAOYSA-N 0.000 claims description 6
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 5
- 238000007743 anodising Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 4
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 claims description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 235000010288 sodium nitrite Nutrition 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- ZNUNZCHOKKVGJM-UHFFFAOYSA-N N.C=12C3=CC=CC2=CC=CC=1C1=C(C(O)=O)C(C(O)=O)=C(C(O)=O)C2=C1C3=CC=C2C(=O)O Chemical compound N.C=12C3=CC=CC2=CC=CC=1C1=C(C(O)=O)C(C(O)=O)=C(C(O)=O)C2=C1C3=CC=C2C(=O)O ZNUNZCHOKKVGJM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004566 building material Substances 0.000 claims description 2
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 2
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000012266 salt solution Substances 0.000 claims description 2
- 235000010344 sodium nitrate Nutrition 0.000 claims description 2
- 239000004317 sodium nitrate Substances 0.000 claims description 2
- 239000008399 tap water Substances 0.000 claims description 2
- 235000020679 tap water Nutrition 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 abstract description 14
- 238000010791 quenching Methods 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 5
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 239000010407 anodic oxide Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007850 fluorescent dye Substances 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 150000002815 nickel Chemical class 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- FVDOBFPYBSDRKH-UHFFFAOYSA-N perylene-3,4,9,10-tetracarboxylic acid Chemical compound C=12C3=CC=C(C(O)=O)C2=C(C(O)=O)C=CC=1C1=CC=C(C(O)=O)C2=C1C3=CC=C2C(=O)O FVDOBFPYBSDRKH-UHFFFAOYSA-N 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
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- Chemical Treatment Of Metals (AREA)
Abstract
The invention relates to a preparation process of an aluminum and aluminum alloy anodic oxidation fluorescent film, which is characterized in that the anodic oxidation film is subjected to alkaline solution treatment, perylene tetracarboxylic acid salt dyeing and hole sealing treatment. The method has the characteristics of simple process, safety and environmental friendliness, and the obtained aluminum anodic oxidation fluorescent film has high fluorescence intensity, and can effectively overcome the defect that the perylene derivative is easy to generate fluorescence quenching.
Description
Technical Field
The invention relates to the field of aluminum alloy surface treatment, in particular to a process for preparing an aluminum and aluminum alloy fluorescent film by using water-soluble perylene tetraacetate as a fluorescent dye.
Background
The aluminum alloy has a series of excellent physical, chemical, mechanical and mechanical processing properties, is widely applied in various fields, and becomes a metal material with the largest use amount and the widest application range in nonferrous metals. In order to overcome the inherent defects in the performance aspect of the aluminum alloy, the surface treatment of the aluminum alloy is an indispensable means for improving the protection, decoration, functionality and product added value of the aluminum product. Among them, anodic oxidation is one of the most commonly used means in surface treatment of aluminum alloys.
The aluminum anodic oxide film has good light transmission and huge specific surface area, can adsorb various dyes, can be dyed into various colors, can be widely applied to aluminum profiles, electronic products and various packages, and has achieved huge success. In addition, the porous structure of the oxide film is very suitable for adsorbing various special functional materials so as to endow the aluminum alloy material with new functions, thereby improving the added value of the product. The aluminum anodic oxidation fluorescent film has the potential of being applied to the aspects of anti-counterfeiting and sensors.
Perylene derivatives have excellent chemical and photochemical stability, and are fluorescent materials with specific properties. Therefore, the perylene derivative is used as the fluorescent dye to prepare the aluminum anodic oxidation fluorescent film, and has important theoretical and application values. However, since perylene contains large planar conjugated aromatic rings, aggregates are easily formed by intermolecular π - π interactions, resulting in difficulties in dissolution and severe fluorescence quenching.
Disclosure of Invention
In order to overcome the defect that perylene derivatives are easy to generate fluorescence quenching, the invention aims to provide a preparation process of an aluminum anodic oxidation fluorescent film, which takes water-soluble perylene tetracetate as a fluorescent dye, has simple process and does not generate fluorescence quenching.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a preparation process of an aluminum and aluminum alloy anodic oxidation fluorescent film is characterized by comprising the following steps: (1) feeding; (2) removing oil and wax; (3) washing with water; (4) chemical polishing or alkali corrosion or ammonium bifluoride matte treatment; (5) washing with water; (6) anodizing; (7) washing with water; (8) treating with alkaline solution; (9) washing with water: (10) perylene tetracarboxylic acid salt dyeing; (11) washing with water; (12) hole sealing treatment; (13) washing with water; (14) drying at room temperature
The preparation process of the aluminum and aluminum alloy anodic oxidation fluorescent film is characterized by comprising the following steps of: in the oil and wax removing procedure in the step (2), sulfuric acid with the concentration of 10-20% is used, the concentration of TP-1 is 10-20%, the temperature is 50-70 ℃, and the treatment time is 1-10 minutes. Wherein TP-1 is a product for removing oil and wax of Guangzhou Hanke building materials company.
The preparation process of the aluminum and aluminum alloy anodic oxidation fluorescent film is characterized by comprising the following steps of: in the chemical polishing procedure in the step (4), the chemical polishing solution comprises phosphoric acid, sulfuric acid, nitric acid, copper sulfate, urea and the like, wherein the mass ratio of the phosphoric acid to the sulfuric acid is 0.7: 1-3: 1, the nitric acid is 0% -5%, the aluminum ions are 10-40 g/L, the temperature is 95-115 ℃, and the treatment time is 1-8 minutes.
The preparation process of the aluminum and aluminum alloy anodic oxidation fluorescent film is characterized by comprising the following steps of: in the alkali corrosion procedure in the step (4), sodium hydroxide with the concentration of 20-80 g/L and 0-100 g/L of sodium nitrate or sodium nitrite are used, the temperature is 50-90 ℃, and the treatment time is 1-5 minutes.
The preparation process of the aluminum and aluminum alloy anodic oxidation fluorescent film is characterized by comprising the following steps of: in the step (4), ammonium bifluoride matte process is carried out at the temperature of 20-60 ℃ for 1-5 minutes, wherein the concentration of ammonium bifluoride is 30-300 g/L.
The preparation process of the aluminum and aluminum alloy anodic oxidation fluorescent film is characterized by comprising the following steps of: in the anodic oxidation procedure in the step (6), sulfuric acid with the concentration of 150-200 g/L is used, the concentration of aluminum ions is 1-14 g/L, the temperature is 19-24 ℃, and the current density is 1.0-1.5A/dm2The oxidation time is 15-50 minutes.
The preparation process of the aluminum and aluminum alloy anodic oxidation fluorescent film is characterized by comprising the following steps of: in the alkaline solution treatment process in the step (8), the alkaline substance includes one or more of ammonia water, sodium carbonate, sodium hydroxide, potassium hydroxide, lithium hydroxide, and hexamethylenetetramine.
The preparation process of the aluminum and aluminum alloy anodic oxidation fluorescent film is characterized by comprising the following steps of: the concentration of the alkaline solution is 0.1-30%, the temperature is 20-50 ℃, and the time is 10 seconds-10 minutes.
The preparation process of the aluminum and aluminum alloy anodic oxidation fluorescent film is characterized by comprising the following steps of: in the perylene tetracarboxylic acid salt dyeing procedure in the step (10), the perylene tetracarboxylic acid salt comprises one or two of perylene tetracarboxylic acid potassium and perylene tetracarboxylic acid ammonium.
The preparation process of the aluminum and aluminum alloy anodic oxidation fluorescent film is characterized by comprising the following steps of: the concentration of the perylene tetracarboxylic acid salt solution is 0.01-10 g/L, the pH value is 6.5-12.5, and the time is 10 seconds-5 minutes.
The preparation process of the aluminum and aluminum alloy anodic oxidation fluorescent film is characterized by comprising the following steps of: and (3) the hole sealing treatment liquid in the step (12) is deionized water, the conductivity of the deionized water is less than 10 mu s/cm, the temperature is 90-100 ℃, and the time is 10 minutes-2 hours.
12. The process for preparing an anodized aluminum and aluminum alloy fluorescent film as defined in claim 1, wherein: the washing water in the steps (3), (5), (7), (9) and (13) is tap water, the washing water in the step (11) is deionized water, and the washing time is 30 seconds to 2 minutes.
The invention has the beneficial effects that: 1. the process is simple. The process is similar to the common aluminum profile process, and the operation is simple and convenient. 2. The perylene tetracarboxylic acid salt used has good water solubility, does not contain organic solvents, and is safe and environment-friendly. 3. The obtained aluminum anodic oxidation fluorescent film has high fluorescence intensity.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be further described with reference to examples. The examples are only for the purpose of facilitating understanding of the present invention and do not constitute a limitation of the scope of the present invention.
Example 1:
the method adopts a special production flow sequence and is characterized by alkaline solution treatment, perylene tetracarboxylic acid salt dyeing and hole sealing treatment. The process comprises the following steps: (1) feeding; (2) oil and wax removal: (3) washing with water; (4) chemical polishing; (5) washing with water; (6) anodizing; (7) washing with water; (8) treating with alkaline solution; (9) washing with water; (10) perylene tetracarboxylic acid salt dyeing; (11) washing with water; (12) hole sealing treatment; (13) washing with water; (14) drying at room temperature
The main components of the working procedure (2) are 10 percent of sulfuric acid and 10 percent of TP-1, the temperature is 60 ℃, the treatment time is 5 minutes, and the method is mainly used for removing polishing wax and oil stains remained in machining and removing dirt, dust and the like attached in the processes of storage and transportation to generate a clean surface.
The chemical polishing solution in the step (4) comprises phosphoric acid, sulfuric acid, nitric acid, copper sulfate, urea and the like, wherein the mass ratio of the phosphoric acid to the sulfuric acid is 1: 1, the nitric acid is 5 percent, the aluminum ions are 30g/L, the temperature is 100 ℃, and the treatment time is 5 minutes; the method is mainly used for removing defects, removing natural oxide films on the surface and generating the high-gloss surface with decorative effect.
In the anodic oxidation step described in step (6), sulfuric acid having a concentration of 180g/L, an aluminum ion concentration of 2g/L, a temperature of 21 ℃ and a current density of 1.3A/dm were used2The oxidation time was 45 minutes. The method is mainly used for generating a transparent porous membrane with high adsorption activity and a certain thickness, and is used for adsorbing the perylene tetracid salt to prepare the fluorescent membrane.
In the alkaline solution treatment step in the step (8), the alkaline substance is 20% ammonia water; specifically, the anodic oxide film is soaked in 20% ammonia water for 1 minute and is continuously stirred; the method is mainly used for converting the microenvironment in the oxide film pores into alkalinity and preventing the perylene tetracarboxylic acid salt from being converted into perylene tetracarboxylic acid in the film pores, thereby avoiding fluorescence quenching.
In the perylene tetracarboxylic acid salt dyeing step to which the step (10) belongs, the anodic oxide film treated with alkali is immersed in a 0.005mol/L aqueous solution of potassium perylene tetracarboxylic acid (pH 7.1) for 10 seconds while being continuously stirred; the method is mainly used for absorbing perylene tetracarboxylic acid anions into pores of the membrane, and in a certain range, the less perylene tetracarboxylic acid anions are absorbed, the higher the fluorescence intensity is; the higher the amount of inhalation, the more likely the concentration fluorescence quenching effect occurs.
In the hole sealing treatment procedure in the procedure (12), the anode oxide film dyed by the perylene tetracarboxylic acid potassium is soaked in deionized water (the conductivity is less than 10 mus/cm), and the hole sealing is carried out for 30 minutes by heating at 100 ℃; the use of the nickel salt sealant commonly used in industry can cause severe fluorescence quenching, probably due to the nickel metal ion induced fluorescence quenching effect; the sealing with boiling water can avoid the fluorescence quenching.
Example 2:
the method adopts a special production flow sequence and is characterized by alkaline solution treatment, perylene tetracarboxylic acid salt dyeing and hole sealing treatment. The process comprises the following steps: (1) feeding; (2) removing oil and wax; (3) washing with water; (4) chemical polishing; (5) washing with water; (6) anodizing; (7) washing with water; (8) treating with alkaline solution; (9) washing with water; (10) perylene tetracarboxylic acid salt dyeing; (11) washing with water; (12) hole sealing treatment; (13) washing with water; (14) drying at room temperature
The main components of the working procedure (2) are 15 percent of sulfuric acid and 15 percent of TP-1, the temperature is 50 ℃, the treatment time is 7 minutes, and the method is mainly used for removing polishing wax and oil stains remained in machining and removing dirt, dust and the like attached in the processes of storage and transportation to generate a clean surface.
In the working procedure (4), sodium hydroxide with the concentration of 25g/L and sodium nitrite with the concentration of 100g/L are used, the temperature is 70 ℃, and the treatment time is 2 minutes; the method is mainly used for removing defects, removing surface material grains and generating a matte surface with a decorative effect.
In the anodic oxidation step described in step (6), sulfuric acid having a concentration of 200g/L, an aluminum ion concentration of 5g/L, a temperature of 21 ℃ and a current density of 1.0A/dm were used2The oxidation time was 45 minutes. The method is mainly used for generating a transparent porous membrane with high adsorption activity and a certain thickness, and is used for adsorbing the perylene tetracid salt to prepare the fluorescent membrane.
In the alkaline solution treatment step in the step (8), the alkaline substance is 5% sodium carbonate; specifically, the anodic oxide film is soaked in 5% ammonia water for 30 seconds and is continuously stirred; the method is mainly used for converting the microenvironment in the oxide film pores into alkalinity and preventing the perylene tetracarboxylic acid salt from being converted into perylene tetracarboxylic acid in the film pores, thereby avoiding fluorescence quenching.
In the perylene tetracarboxylic acid salt dyeing process belonging to the process (10), the anodic oxide film treated by alkali is soaked in 0.0001mol/L aqueous solution of perylene tetracarboxylic acid potassium (pH 7.1) for 30 seconds and is continuously stirred; the method is mainly used for absorbing perylene tetracarboxylic acid anions into pores of the membrane, and in a certain range, the less perylene tetracarboxylic acid anions are absorbed, the higher the fluorescence intensity is; the higher the amount of inhalation, the more likely the concentration fluorescence quenching effect occurs.
In the hole sealing treatment procedure in the procedure (12), the anode oxide film dyed by the perylene tetracarboxylic acid potassium is soaked in deionized water (the conductivity is less than 10 mus/cm), and the hole sealing is carried out for 30 minutes by heating at 100 ℃; the use of the nickel salt sealant commonly used in industry can cause severe fluorescence quenching, probably due to the nickel metal ion induced fluorescence quenching effect; the sealing with boiling water can avoid the fluorescence quenching.
Claims (12)
1. A preparation process of an aluminum and aluminum alloy anodic oxidation fluorescent film is characterized by comprising the following steps: (1) feeding; (2) removing oil and wax; (3) washing with water; (4) chemical polishing or alkali corrosion or ammonium bifluoride matte treatment; (5) washing with water; (6) anodizing; (7) washing with water; (8) treating with alkaline solution; (9) washing with water; (10) perylene tetracarboxylic acid salt dyeing; (11) washing with water; (12) hole sealing treatment; (13) washing with water; (14) and (5) drying at room temperature.
2. The process for preparing an anodized aluminum and aluminum alloy fluorescent film as defined in claim 1, wherein: in the oil and wax removing procedure in the step (2), sulfuric acid with the concentration of 10-20% is used, the concentration of TP-1 is 10-20%, the temperature is 50-70 ℃, and the treatment time is 1-10 minutes. Wherein TP-1 is a product for removing oil and wax of Guangzhou Hanke building materials company.
3. The process for preparing an anodized aluminum and aluminum alloy fluorescent film as defined in claim 1, wherein: in the chemical polishing procedure in the step (4), the chemical polishing solution comprises phosphoric acid, sulfuric acid, nitric acid, copper sulfate, urea and the like, wherein the mass ratio of the phosphoric acid to the sulfuric acid is 0.7: 1-3: 1, the nitric acid is 0% -5%, the aluminum ions are 10-40 g/L, the temperature is 95-115 ℃, and the treatment time is 1-8 minutes.
4. The process for preparing an anodized aluminum and aluminum alloy fluorescent film as defined in claim 1, wherein: in the alkali corrosion procedure in the step (4), sodium hydroxide with the concentration of 20-80 g/L and 0-100 g/L of sodium nitrate or sodium nitrite are used, the temperature is 50-90 ℃, and the treatment time is 1-5 minutes.
5. The process for preparing an anodized aluminum and aluminum alloy fluorescent film as defined in claim 1, wherein: in the step (4), ammonium bifluoride matte process is carried out at the temperature of 20-60 ℃ for 1-5 minutes, wherein the concentration of ammonium bifluoride is 30-300 g/L.
6. The process for preparing an anodized aluminum and aluminum alloy fluorescent film as defined in claim 1, wherein the process comprisesIs characterized in that: in the anodic oxidation procedure in the step (6), sulfuric acid with the concentration of 150-200 g/L is used, the concentration of aluminum ions is 1-14 g/L, the temperature is 19-24 ℃, and the current density is 1.0-1.5A/dm2The oxidation time is 15-50 minutes.
7. The process for preparing an anodized aluminum and aluminum alloy fluorescent film as defined in claim 1, wherein: in the alkaline solution treatment process in the step (8), the alkaline substance includes one or more of ammonia water, sodium carbonate, sodium hydroxide, potassium hydroxide, lithium hydroxide, and hexamethylenetetramine.
8. The process for preparing an anodized aluminum and aluminum alloy fluorescent film as defined in claim 7, wherein: the concentration of the alkaline solution is 0.1-30%, the temperature is 20-50 ℃, and the time is 10 seconds-10 minutes.
9. The process for preparing an anodized aluminum and aluminum alloy fluorescent film as defined in claim 1, wherein: in the perylene tetracarboxylic acid salt dyeing procedure in the step (10), the perylene tetracarboxylic acid salt comprises one or two of perylene tetracarboxylic acid potassium and perylene tetracarboxylic acid ammonium.
10. The process for preparing an anodized aluminum and aluminum alloy fluorescent film as defined in claim 9, wherein: the concentration of the perylene tetraacid salt solution is 0.0001-0.1 mol/L, the pH value is 6.5-12.5, and the time is 10 seconds-5 minutes.
11. The process for preparing an anodized aluminum and aluminum alloy fluorescent film as defined in claim 1, wherein: and (3) the hole sealing treatment liquid in the step (12) is deionized water, the conductivity of the deionized water is less than 10 mu s/cm, the temperature is 90-100 ℃, and the time is 10 minutes-2 hours.
12. The process for preparing an anodized aluminum and aluminum alloy fluorescent film as defined in claim 1, wherein: the washing water in the steps (3), (5), (7), (9) and (13) is tap water, the water in the step (11) is deionized water, and the washing time is 30 seconds to 2 minutes.
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| EP0535457A2 (en) * | 1991-09-30 | 1993-04-07 | Ykk Corporation | Colored article of aluminum or aluminum alloy and method for production thereof |
| WO2001092420A2 (en) * | 2000-05-29 | 2001-12-06 | Radiant Color N.V. | Perylene dyes with persistent fluorescence caused by steric inhibition of aggregation |
| JP2009270004A (en) * | 2008-05-07 | 2009-11-19 | Aisin Keikinzoku Co Ltd | Fluorescence emitter and its manufacturing method |
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