CN113151876A - Stabilizing agent for aluminum alloy anodic dyeing and preparation method thereof - Google Patents
Stabilizing agent for aluminum alloy anodic dyeing and preparation method thereof Download PDFInfo
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- CN113151876A CN113151876A CN202110424513.5A CN202110424513A CN113151876A CN 113151876 A CN113151876 A CN 113151876A CN 202110424513 A CN202110424513 A CN 202110424513A CN 113151876 A CN113151876 A CN 113151876A
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/243—Chemical after-treatment using organic dyestuffs
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Abstract
The invention discloses a dye stabilizer for aluminum alloy anodic dyeing and a preparation method thereof. The stabilizer for aluminum alloy anodic dyeing comprises the following components in percentage by mass: 1-5% of acetic acid; 3-15% of acetate; 1-5% of high molecular polymer; 2-8% of a wetting agent; 3-10% of preservative; cationic surfactant 0.1-0.3%; the balance of pure water. The preparation method comprises the following steps: firstly, dissolving sodium acetate and potassium sorbate in pure water one by one, then sequentially adding maleic acid-allyl alcohol copolymer, glycerol and cationic surfactant, uniformly stirring to obtain a mixed solution, then adding glacial acetic acid to adjust the pH value of the mixed solution to 5-5.8, and uniformly stirring. The stabilizer for the aluminum alloy anodic dyeing can effectively solve the problems of dyeing bleeding, uneven color difference and short service life, and has the characteristics of no halogen, no toxicity, no heavy metal, safety and environmental protection, and small dosage.
Description
Technical Field
The invention relates to the field of aluminum alloy surface treatment, in particular to a stabilizer for aluminum alloy anodic dyeing and a preparation method thereof.
Background
A large amount of aluminum alloy anodic oxidation and dyeing technologies are used for machine component products in the 3C industry so as to obtain bright and colorful appearance effects. The general process of the aluminum alloy anode dyeing comprises the following steps: degreasing, alkali biting, black film peeling, chemical polishing, black film peeling, anodic oxidation, dyeing, hole sealing and drying. The aluminum alloy anode is dyed by organic acid dye at pH 5-6.5 and normal temperature-55 deg.c.
At present, the problems of aluminum alloy anode dyeing are as follows: on a machine member with large area and relatively complex structure, the problems of uneven color difference, short service life of dyeing liquid (1-3 days), bleeding and the like exist; the UV resistance test was 300H (i.e., Δ E94 variation <3) NG as seen by the dyed film quality. For the above problems, the conventional countermeasures in the industry are: 1. stabilizing the pH value by using a pH buffer solution of an HAc-NaAc system or adjusting the pH value by using HAc or ammonia water independently; it is commonly used for dark products with small area and simple structure, and the longest service life of the dyeing liquid can reach about 1 week, such as: cell phone middle frame/mouse/keyboard etc.; complex or light-colored products if the area is relatively large, such as: when the flat-plate/pen electricity/all-in-one machine is used on the shell, the effect is not ideal. In addition, when the pH value is adjusted by using HAC or ammonia water, special persons are required to nurse and continuously debug, and the production efficiency is low. 2. The dyeing speed is delayed by using sodium sulfate to improve the color bleeding; the solution 2 can improve the bleeding color, but the color difference between different measurement points of the product is amplified for the product with light color, and the dyeing tank color system is unstable, and the color system is generally deviated when the product is placed in a state of exceeding 12H. 3. Adding a hole sealing agent containing heavy metal Ni; strategy 3 is generally only used on some low end products because it contains heavy metals and has an effect on the UV performance of the dyed film (generally only 50H resistant). The above three countermeasures can be solved within a certain range, but all have limitations.
Disclosure of Invention
Based on the above, there is a need for a stabilizer for anodic dyeing of aluminum alloys and a preparation method thereof. The stabilizer for aluminum alloy anodic dyeing can effectively solve the problems of dyeing bleeding, uneven color difference and short service life after being added into a dyeing tank, has the characteristics of no halogen, no toxicity, no heavy metal, safety and environmental protection, and is low in dosage, and the mass ratio of the stabilizer for aluminum alloy anodic dyeing to the dyeing tank is 1-2%.
The stabilizer for aluminum alloy anodic dyeing comprises the following components in percentage by mass:
1-5% of acetic acid;
3-15% of acetate;
1-5% of high molecular polymer;
2-8% of a wetting agent;
3-10% of preservative;
cationic surfactant 0.1-0.5%;
the balance of pure water.
In one embodiment, the acetate salt is selected from one or both of ammonium acetate or sodium acetate.
In one embodiment, the high molecular polymer is selected from one or more of maleic acid-allyl alcohol copolymer, maleic acid-acrylic acid copolymer, acrylate copolymer, methyl vinyl ether/maleic acid copolymer, maleic acid-allyl alcohol copolymer, polyquaternium-7, and polyquaternium-39.
In one embodiment, the dispersing wetting agent is one or more selected from ethylene glycol, propylene glycol, glycerol, triethylene glycol, polyethylene glycol 400, polyethylene glycol 600 and polyethylene glycol 2000.
In one embodiment, the preservative is selected from one or more of potassium sorbate, sodium sorbate, potassium cinnamate, diazolidinyl urea, propionic acid and salts thereof, amido bis-quaternary ammonium salts, parabens, dehydroacetic acid and sodium salts thereof, sodium diacetate, sodium lactate, dimethyl fumarate, benzoic acid and sodium salts thereof, chitosan, amido bis-quaternary ammonium salts, carbazone 14, 1, 3-dimethylol-5, 5-dimethylhydantoin, 1, 2-benzisothiazolin-3-one, sodium p-methoxybenzoate, octyl isothiazoline.
In one embodiment, the cationic surfactant is selected from one or more of coconut alkyl quaternary amine ethoxylate, half-branched C9-11 alcohol polyoxyethylene ether, polyethoxylated isomeric tridecanol, sec-octanol polyoxyethylene ether, JFC-2, JFC-C, fatty acid methyl ester ethoxylate, polyoxyethylene sorbitan fatty acid ester, fatty alcohol polyoxypropylene ether and penetrating agent JFC-4.
In one embodiment, the composition comprises the following components in percentage by mass:
1-3% of acetic acid;
5-12% of acetate;
1-3% of high molecular polymer;
2-6% of a wetting agent;
3-6% of preservative;
cationic surfactant 0.15-0.3%;
the balance of pure water.
In one embodiment, the composition comprises the following components in percentage by mass:
2-3% of acetic acid;
5-10% of acetate;
2-3% of high molecular polymer;
4-6% of a wetting agent;
3-5% of preservative;
cationic surfactant 0.15-0.2%;
the balance of pure water.
In one embodiment, the composition comprises the following components in percentage by mass:
2-3% of acetic acid;
6-8% of acetate;
2-3% of high molecular polymer;
4-6% of a wetting agent;
3-5% of preservative;
cationic surfactant 0.15-0.2%;
the balance of pure water.
In one embodiment, the composition comprises the following components in percentage by mass:
2.5 percent of acetic acid;
acetate 7 percent;
2.5% of high molecular polymer;
5% of a wetting agent;
4% of preservative;
0.2% of cationic surfactant;
the balance of pure water.
A preparation method of a stabilizer for aluminum alloy anodic dyeing comprises the following steps:
dissolving acetate and a preservative into pure water one by one, sequentially adding a high molecular polymer, a wetting agent and a cationic surfactant, uniformly stirring to obtain a mixed solution, adding glacial acetic acid to adjust the pH value of the mixed solution to 5-5.8, and uniformly stirring.
In one embodiment, the method comprises the following steps: the preset temperature is 25-35 ℃.
In one embodiment, the method comprises the following steps: the stirring speed is 50-200rpm during stirring, and the stirring time is 30min-1 h.
In one embodiment, the method further comprises the following steps: after being stirred evenly, the mixture is kept at the constant temperature of 25-35 ℃ for 1-2 h.
The stabilizing agent for aluminum alloy anodic dyeing contains the components with mildew resistance, antibiosis and pH stability, solves the problem of pH fluctuation caused by mildew of acidic nitrogenous dye, and can prolong the service life of the dyeing tank. The high molecular polymer such as maleic acid-allyl alcohol copolymer is added into the stabilizing agent for aluminum alloy anodic dyeing, so that the effect of level dyeing is achieved, and the problems of uneven bleeding and color difference are solved. The cationic surfactant such as coconut alkyl quaternary amine ethoxylate is added into the stabilizer for aluminum alloy anodic dyeing, so that the surface charge of an aluminum alloy anodic oxide film can be adjusted, dye molecules are promoted to permeate into deep holes of the oxide film, and the UV resistance of the product is improved.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiment of the invention provides a stabilizer for aluminum alloy anodic dyeing, which comprises the following components in percentage by mass:
1-5% of acetic acid;
3-15% of acetate;
1-5% of high molecular polymer;
2-8% of a wetting agent;
3-10% of preservative;
cationic surfactant 0.1-0.5%;
the balance of pure water.
In one embodiment, the acetate salt is selected from one or both of ammonium acetate or sodium acetate. Preferably, the acetate salt is sodium acetate.
In one embodiment, the high molecular polymer is selected from one or more of maleic acid-allyl alcohol copolymer, maleic acid-acrylic acid copolymer, acrylate copolymer, methyl vinyl ether/maleic acid copolymer, maleic acid-allyl alcohol copolymer, polyquaternium-7, and polyquaternium-39. Preferably, the high molecular polymer is a maleic acid-allyl alcohol copolymer.
In one embodiment, the dispersing wetting agent is selected from one or more of ethylene glycol, propylene glycol, glycerol, triethylene glycol, polyethylene glycol 400, polyethylene glycol 600, and polyethylene glycol 2000.
Preferably, the humectant is glycerol.
In one embodiment, the preservative is selected from one or more of potassium sorbate, sodium sorbate, potassium cinnamate, diazolidinyl urea, propionic acid and salts thereof, amido bis-quaternary ammonium salts, parabens, dehydroacetic acid and sodium salts thereof, sodium diacetate, sodium lactate, dimethyl fumarate, benzoic acid and sodium salts thereof, chitosan, amido bis-quaternary ammonium salts, carbazone 14, 1, 3-dimethylol-5, 5-dimethylhydantoin, 1, 2-benzisothiazolin-3-one, sodium p-methoxybenzoate, octyl isothiazoline. Preferably, the preservative is potassium sorbate.
In one embodiment, the cationic surfactant is selected from one or more of coconut alkyl quaternary amine ethoxylate, half-branched C9-11 alcohol polyoxyethylene ether, polyethoxylated isomeric tridecanol, sec-octanol polyoxyethylene ether, JFC-2, JFC-C, fatty acid methyl ester ethoxylate, polyoxyethylene sorbitan fatty acid ester, fatty alcohol polyoxypropylene ether, and penetrating agent JFC-4. Preferably, the cationic surfactant is a coconut alkyl quaternary amine ethoxylate.
The stabilizing agent for aluminum alloy anodic dyeing contains the components with mildew resistance, antibiosis and pH stability, solves the problem of pH fluctuation caused by mildew of acidic nitrogenous dye, and can prolong the service life of the dyeing tank. The high molecular polymer such as maleic acid-allyl alcohol copolymer is added into the stabilizing agent for aluminum alloy anodic dyeing, so that the effect of level dyeing is achieved, and the problems of uneven bleeding and color difference are solved. The cationic surfactant such as coconut alkyl quaternary amine ethoxylate is added into the stabilizing agent for aluminum alloy anodic dyeing, so that the surface charge of an aluminum alloy anodic oxide film can be adjusted, dye molecules are promoted to permeate into deep holes of the oxide film, and the UV resistance of the product is improved.
The invention further provides a preparation method of the stabilizer for aluminum alloy anodic dyeing.
A preparation method of a stabilizer for aluminum alloy anodic dyeing comprises the following steps:
dissolving acetate and a preservative into pure water one by one, sequentially adding a high molecular polymer, a wetting agent and a cationic surfactant, uniformly stirring to obtain a mixed solution, adding glacial acetic acid to adjust the pH value of the mixed solution to 5-5.8, and uniformly stirring.
In one embodiment, the preparation method of the stabilizer for aluminum alloy anodic dyeing comprises the following steps: the preset temperature is 25-35 ℃.
In one embodiment, the preparation method of the stabilizer for aluminum alloy anodic dyeing comprises the following steps: the stirring speed is 50-200rpm during stirring, and the stirring time is 30min-1 h.
In one embodiment, the preparation method of the stabilizer for aluminum alloy anodic dyeing further comprises the following steps: after being stirred evenly, the mixture is kept at the constant temperature of 25-55 ℃ for 1-2 h.
Example 1
The embodiment provides a stabilizer for aluminum alloy anodic dyeing.
The stabilizer for aluminum alloy anodic dyeing comprises the following components in percentage by mass:
1% of acetic acid;
6% of sodium acetate;
maleic acid-allyl alcohol copolymer 1%;
2% of glycerol;
3% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.15%;
the balance of pure water.
Example 2
The embodiment provides a stabilizer for aluminum alloy anodic dyeing.
The stabilizer for aluminum alloy anodic dyeing comprises the following components in percentage by mass:
1% of acetic acid;
6% of sodium acetate;
maleic acid-allyl alcohol copolymer 2%;
2% of glycerol;
3% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.15%;
the balance of pure water.
Example 3
The embodiment provides a stabilizer for aluminum alloy anodic dyeing.
The stabilizer for aluminum alloy anodic dyeing comprises the following components in percentage by mass:
2% of acetic acid;
6% of sodium acetate;
maleic acid-allyl alcohol copolymer 4%;
2% of glycerol;
3% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.15%;
the balance of pure water.
Example 4
The embodiment provides a stabilizer for aluminum alloy anodic dyeing.
The stabilizer for aluminum alloy anodic dyeing comprises the following components in percentage by mass:
2% of acetic acid;
8% of sodium acetate;
maleic acid-allyl alcohol copolymer 4%;
4% of glycerol;
3% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.15%;
the balance of pure water.
Example 5
The embodiment provides a stabilizer for aluminum alloy anodic dyeing.
The stabilizer for aluminum alloy anodic dyeing comprises the following components in percentage by mass:
2% of acetic acid;
8% of sodium acetate;
maleic acid-allyl alcohol copolymer 4%;
4% of glycerol;
5% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.15%;
the balance of pure water.
Example 6
The embodiment provides a stabilizer for aluminum alloy anodic dyeing.
The stabilizer for aluminum alloy anodic dyeing comprises the following components in percentage by mass:
2% of acetic acid;
8% of sodium acetate;
maleic acid-allyl alcohol copolymer 6%;
4% of glycerol;
5% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.2%;
the balance of pure water.
Example 7
The embodiment provides a stabilizer for aluminum alloy anodic dyeing.
The stabilizer for aluminum alloy anodic dyeing comprises the following components in percentage by mass:
2.5 percent of acetic acid;
10% of sodium acetate;
maleic acid-allyl alcohol copolymer 4%;
4% of glycerol;
6% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.2%;
the balance of pure water.
Example 8
The embodiment provides a stabilizer for aluminum alloy anodic dyeing.
The stabilizer for aluminum alloy anodic dyeing comprises the following components in percentage by mass:
2.5 percent of acetic acid;
12% of sodium acetate;
maleic acid-allyl alcohol copolymer 4%;
4% of glycerol;
6% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.3%;
the balance of pure water.
Example 9
The embodiment provides a stabilizer for aluminum alloy anodic dyeing.
The stabilizer for aluminum alloy anodic dyeing comprises the following components in percentage by mass:
2.5 percent of acetic acid;
10% of sodium acetate;
maleic acid-allyl alcohol copolymer 6%;
6% of glycerol;
6% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.3%;
the balance of pure water.
Example 10
The embodiment provides a preparation method of a stabilizer for aluminum alloy anodic dyeing.
A preparation method of a stabilizer for aluminum alloy anodic dyeing comprises the following steps:
acetic acid, sodium acetate, maleic acid-allyl alcohol copolymer, glycerin, potassium sorbate, cationic surfactant, and pure water were obtained according to the formulation in example 9.
Dissolving sodium acetate and potassium sorbate in pure water one by one, sequentially adding maleic acid-allyl alcohol copolymer, glycerol and cationic surfactant, stirring uniformly to obtain a mixed solution, adding glacial acetic acid to adjust the pH value of the mixed solution to 5-5.8, and stirring at 50-200rpm for 30min-1 h; after being stirred evenly, the mixture is kept at the constant temperature of 25-35 ℃ for 1-2 h.
The stabilizer for aluminum alloy anodic dyeing prepared in the embodiment 10 is used in actual production, the addition amount is 1-2%, the temperature is 40-50 ℃, the pH is stabilized at 5.1-5.3, and the product color difference is small. The UV resistance test performance is enhanced. The difference value of the color difference (grey is an example) of the whole rod in actual production is shown in the following table 1. The UV resistance test data pairs for each color are shown in table 2.
TABLE 1 actual production of difference values of the whole-rod color difference (grey as an example)
Table 2 comparison of UV resistance test data for each color
Comparative example 1
This comparative example provides a dye stabilizer.
The stabilizer comprises the following components in percentage by mass:
2% of acetic acid;
12% of sodium acetate;
4% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.2%;
the balance of pure water.
Comparative example 2
This comparative example provides a dye stabilizer.
The stabilizer comprises the following components in percentage by mass:
2% of acetic acid;
12% of sodium acetate;
maleic acid-allyl alcohol copolymer 2.5%;
5% of glycerol;
4% of potassium sorbate;
the balance of pure water.
Comparative example 3
This comparative example provides a dye stabilizer.
The stabilizer comprises the following components in percentage by mass:
2% of acetic acid;
12% of sodium acetate;
maleic acid-allyl alcohol copolymer 2.5%;
4% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.2%;
the balance of pure water.
Comparative example 4
This comparative example provides a dye stabilizer.
The stabilizer comprises the following components in percentage by mass:
2% of acetic acid;
12% of sodium acetate;
maleic acid-allyl alcohol copolymer 2.5%;
20% of glycerol;
4% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.2%;
the balance of pure water.
Comparative example 5
This comparative example provides a dye stabilizer.
The stabilizer comprises the following components in percentage by mass:
2% of acetic acid;
maleic acid-allyl alcohol copolymer 2.5%;
5% of glycerol;
4% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.2%;
the balance of pure water.
Comparative example 6
This comparative example provides a dye stabilizer.
The stabilizer comprises the following components in percentage by mass:
maleic acid-allyl alcohol copolymer 2.5%;
5% of glycerol;
4% of potassium sorbate;
coconut alkyl quaternary amine ethoxylate 0.2%;
the balance of pure water.
The stabilizers for anodic dyeing of aluminum alloys of examples 1 to 9 and the stabilizers of comparative examples 1 to 6 were used for practical production, respectively, and corresponding performance tests were conducted, the test contents including dyeing bath life, bleeding, color difference, UV performance, and the like. The test results are shown in table 3.
TABLE 3
Color difference uniformity as the difference between different measurement points: Δ L < 1; Δ a < 0.2; Δ b <0.5 is the norm:
UV resistance test performance: the method is characterized in that the variation quantity of the color difference delta E94 is less than 3 after the UV-A lamp with the wavelength ranging from 280 nm to 400nm and the radiation power of 50W/square meter is 300H. (variance: Excellent 2; inferior >2)
As can be seen from table 3 above, the parameters of the stabilizers for anodic dyeing of aluminum alloys in examples 1-9 are better than those of the stabilizers in comparative examples 1-6, specifically, the PH is stable, the appearance effect is good, the service life meets the actual production requirements, and the UV resistance of the product can be improved. And the product competitiveness is enhanced.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (14)
1. The stabilizer for aluminum alloy anodic dyeing is characterized by comprising the following components in percentage by mass:
1-5% of acetic acid;
3-15% of acetate;
1-5% of high molecular polymer;
2-8% of a wetting agent;
3-10% of preservative;
cationic surfactant 0.1-0.5%;
the balance of pure water.
2. The stabilizer for anodic dyeing of aluminum alloys according to claim 1, wherein the acetate is selected from one or both of ammonium acetate and sodium acetate.
3. The stabilizer for anodic dyeing of aluminum alloy according to claim 1, wherein the high molecular polymer is one or more selected from maleic acid-allyl alcohol copolymer, maleic acid-acrylic acid copolymer, acrylate copolymer, methyl vinyl ether/maleic acid copolymer, maleic acid-allyl alcohol copolymer, polyquaternium-7, and polyquaternium-39.
4. The stabilizer for anodic dyeing of aluminum alloy according to claim 1, wherein the wetting agent is one or more selected from ethylene glycol, propylene glycol, glycerol, triethylene glycol, polyethylene glycol 400, polyethylene glycol 600, and polyethylene glycol 2000.
5. The stabilizer for anodic dyeing of aluminum alloy according to claim 1, wherein the preservative is one or more selected from potassium sorbate, sodium sorbate, potassium cinnamate, diazolidinyl urea, propionic acid and salts thereof, amido gemini quaternary ammonium salts, parabens, dehydroacetic acid and sodium salts thereof, sodium diacetate, sodium lactate, dimethyl fumarate, benzoic acid and sodium salts thereof, chitosan, amido gemini quaternary ammonium salts, carbazone 14, 1, 3-dimethylol-5, 5-dimethylhydantoin, 1, 2-benzisothiazolin-3-one, sodium p-methoxybenzoate, and octylisothiazoline.
6. The stabilizer for anodic dyeing of aluminum alloys according to claim 1, wherein the cationic surfactant is selected from one or more of coconut alkyl quaternary amine ethoxylate, half-branched C9-11 alcohol polyoxyethylene ether, polyethoxylated isotridecyl alcohol, sec-octanol polyoxyethylene ether, JFC-2, JFC-C, fatty acid methyl ester ethoxylate, polyoxyethylene sorbitan fatty acid ester, fatty alcohol polyoxypropylene ether, and penetrating agent JFC-4.
7. The stabilizer for anodic dyeing of aluminum alloys according to any one of claims 1 to 6, comprising the following components in percentage by mass:
1-3% of acetic acid;
5-12% of acetate;
1-3% of high molecular polymer;
2-6% of a wetting agent;
3-6% of preservative;
cationic surfactant 0.15-0.3%;
the balance of pure water.
8. The stabilizer for anodic dyeing of aluminum alloys according to any one of claims 1 to 6, comprising the following components in percentage by mass:
2-3% of acetic acid;
5-10% of acetate;
2-3% of high molecular polymer;
4-6% of a wetting agent;
3-5% of preservative;
cationic surfactant 0.15-0.2%;
the balance of pure water.
9. The stabilizer for anodic dyeing of aluminum alloys according to any one of claims 1 to 6, comprising the following components in percentage by mass:
2-3% of acetic acid;
6-8% of acetate;
2-3% of high molecular polymer;
4-6% of a wetting agent;
3-5% of preservative;
cationic surfactant 0.15-0.2%;
the balance of pure water.
10. The stabilizer for anodic dyeing of aluminum alloys according to any one of claims 1 to 6, comprising the following components in percentage by mass:
2.5 percent of acetic acid;
acetate 7 percent;
2.5% of high molecular polymer;
5% of a wetting agent;
4% of preservative;
0.2% of cationic surfactant;
the balance of pure water.
11. A method for preparing the stabilizer for anodic dyeing of aluminum alloy according to any one of claims 1 to 10, comprising the steps of:
dissolving acetate and a preservative into pure water one by one, sequentially adding a high molecular polymer, a wetting agent and a cationic surfactant, uniformly stirring to obtain a mixed solution, adding glacial acetic acid to adjust the pH value of the mixed solution to 5-5.8, and uniformly stirring.
12. The method for preparing the stabilizer for aluminum alloy anodic dyeing according to claim 11, comprising the steps of: the preset temperature is 25-35 ℃.
13. The method for preparing the stabilizer for anodic dyeing of aluminum alloy according to any one of claims 11 to 12, comprising the steps of: the stirring speed is 50-200rpm during stirring, and the stirring time is 30min-1 h.
14. The method for preparing the stabilizer for anodic dyeing of aluminum alloy according to any one of claims 11 to 12, further comprising the steps of: after being stirred evenly, the mixture is kept at the constant temperature of 25-35 ℃ for 1-2 h.
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| CN114197011A (en) * | 2021-11-27 | 2022-03-18 | 鸿富锦精密电子（成都）有限公司 | Anodic oxidation dyeing additive, anodic oxidation dyeing additive solution, preparation method of anodic oxidation dyeing additive solution and anodic oxidation dyeing method |
| CN114232047A (en) * | 2021-11-30 | 2022-03-25 | 惠州市安泰普表面处理科技有限公司 | Method for coloring anodic oxidation layer of aluminum alloy |
| CN114775012A (en) * | 2022-05-05 | 2022-07-22 | 湖北蓝华铝业有限公司 | Surface coloring agent for aluminum alloy processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114197011A (en) * | 2021-11-27 | 2022-03-18 | 鸿富锦精密电子（成都）有限公司 | Anodic oxidation dyeing additive, anodic oxidation dyeing additive solution, preparation method of anodic oxidation dyeing additive solution and anodic oxidation dyeing method |
| CN114232047A (en) * | 2021-11-30 | 2022-03-25 | 惠州市安泰普表面处理科技有限公司 | Method for coloring anodic oxidation layer of aluminum alloy |
| CN114232047B (en) * | 2021-11-30 | 2023-10-31 | 惠州市安泰普表面处理科技有限公司 | Method for coloring anodic oxide layer of aluminum alloy |
| CN114775012A (en) * | 2022-05-05 | 2022-07-22 | 湖北蓝华铝业有限公司 | Surface coloring agent for aluminum alloy processing |
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