CN112522721A - Die-casting aluminum smokeless whitening agent, preparation method and application - Google Patents
Die-casting aluminum smokeless whitening agent, preparation method and application Download PDFInfo
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- CN112522721A CN112522721A CN202011366393.XA CN202011366393A CN112522721A CN 112522721 A CN112522721 A CN 112522721A CN 202011366393 A CN202011366393 A CN 202011366393A CN 112522721 A CN112522721 A CN 112522721A
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- die
- acid
- whitening
- casting aluminum
- smokeless
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/56—Treatment of aluminium or alloys based thereon
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The die-casting aluminum smokeless whitening detergent is prepared from the following raw materials in percentage by weight: 10-15% of sulfamic acid, 7-9% of benzoic acid, 15-25% of glacial acetic acid, 6-9% of fatty alcohol-polyoxyethylene ether, 10-15% of nano-silica emulsion, 3-7% of sodium dodecyl sulfate, 2-5% of lactic acid, 5-10% of glycerol and the balance of water. Sulfamic acid and benzoic acid provide an organic acid environment, so that the die-casting aluminum is eroded, and glacial acetic acid and lactic acid level the uneven surface of the workpiece caused by strong erosion, so that the surface of the die-casting aluminum is in a mirror surface state; under the action of strong erosion, impurities in die-casting aluminum are precipitated to cause the surface to be hung with black ash, and simultaneously, under the synergistic action of a penetrant AEO-9, a cleaning agent sodium dodecyl sulfate and an abrasive nano-silica emulsion, the black ash is thoroughly removed.
Description
Technical Field
The invention belongs to the field of industrial cleaning, and particularly relates to a die-casting aluminum smokeless whitening detergent, a preparation method and application.
Background
Aluminum and aluminum alloys are widely used in industry, and are widely used in industries such as automobile manufacturing and machine manufacturing. Among them, aluminum and aluminum alloys are popular among a large number of customers and consumers because they maintain their original white and bright metallic luster. The bright white washing liquid for aluminum and aluminum alloy in the market is not much, and strong acid, strong base or fluorine-containing ion compounds are mostly adopted. The chemicals have the problems of air pollution, operator poison, difficult wastewater treatment and the like. Aluminum and aluminum alloys are industrially used in media such as air, soil, seawater, etc., and cause corrosion to various degrees. The corrosion causes serious damage to modern industry, not only direct economic loss, but also indirect loss of shutdown and production halt, and the surface of the corroded aluminum product is bright and clean and dull, thereby affecting the beauty of the industrial aluminum product. Therefore, the development of the die-casting aluminum smokeless whitening detergent is a problem to be solved urgently. Although the smokeless whitening agent developed on the market can whiten die-cast aluminum, a metal substrate is exposed in the atmosphere after whitening, so that the metal substrate is quickly corroded by the atmosphere and has dull color and even generates white oxide. The method can wash white die-cast aluminum, and a layer of passivation film is formed on the die-cast aluminum, so that the die-cast aluminum after being washed white can not be rusted within one year.
Disclosure of Invention
The invention aims to provide a die-cast aluminum smokeless whitening detergent, a preparation method and application thereof.
The die-casting aluminum smokeless whitening detergent is prepared from the following raw materials in percentage by weight:
10 to 15 percent of sulfamic acid,
7 to 9 percent of benzoic acid,
15 to 25 percent of glacial acetic acid,
6 to 9 percent of fatty alcohol-polyoxyethylene ether,
10-15% of nano silicon dioxide emulsion,
3 to 7 percent of sodium dodecyl sulfate,
2 to 5 percent of lactic acid,
5 to 10 percent of glycerin,
the balance of water.
Preferably, the die-casting aluminum smokeless whitening detergent is prepared from the following raw materials in percentage by weight:
10 to 15 percent of sulfamic acid,
7 to 9 percent of benzoic acid,
19 to 25 percent of glacial acetic acid,
6 to 9 percent of fatty alcohol-polyoxyethylene ether,
10-15% of nano silicon dioxide emulsion,
3 to 7 percent of sodium dodecyl sulfate,
2 to 5 percent of lactic acid,
5 to 10 percent of glycerin,
the balance of water.
The fatty alcohol-polyoxyethylene ether is preferably AEO-9.
More preferably, the die-casting aluminum smokeless whitening agent is prepared from the following raw materials in percentage by weight:
13.6 percent of sulfamic acid,
8.6 percent of benzoic acid,
20 percent of glacial acetic acid,
AEO-96.8%，
12.0 percent of nano silicon dioxide emulsion,
5.1 percent of sodium dodecyl sulfate,
3.6 percent of lactic acid,
6.6 percent of glycerin,
the balance of water.
The nano silicon dioxide emulsion is preferably small-particle size silica sol XS-25 of Zhejiang space chemical company Limited, and the solid content is 25 +/-1%, and the particle size is 7-9 nm.
The preparation method of the die-casting aluminum smokeless whitening detergent comprises the following steps:
adding water into a reaction kettle, sequentially adding sulfamic acid, benzoic acid, glacial acetic acid and lactic acid, stirring for 10-15 minutes, adding AEO-9, glycerol, sodium dodecyl sulfate and nano-silica emulsion, stirring for 2-2.5 hours, analyzing, detecting and packaging.
The invention also comprises the application of the whitening agent in die-casting aluminum whitening.
The application principle of the die-casting aluminum smokeless whitening detergent is as follows:
sulfamic acid and benzoic acid provide an organic acid environment, so that the die-casting aluminum is eroded, and glacial acetic acid and lactic acid level the uneven surface of the workpiece caused by strong erosion, so that the surface of the die-casting aluminum is in a mirror surface state; under the action of strong erosion, impurities (such as carbon elements and the like) in die-casting aluminum are precipitated to cause the surface to be coated with black ash, and simultaneously, under the synergistic action of a penetrant AEO-9, a cleaning agent sodium dodecyl sulfate and an abrasive nano-silica emulsion, the black ash is thoroughly removed.
The four acids in the formula have synergistic effect, and the lactic acid mainly has the functions of whitening and removing grey, and has the functions of darkening and bringing grey without lactic acid; the glacial acetic acid mainly levels the surface to form a mirror surface effect, and the non-glacial acetic acid is in a matte state; sulfamic acid is strong acid, plays a role in corroding a matrix, and can not be subjected to whitening washing without sulfamic acid; benzoic acid acts as an acidity regulator, and is stably corroded to a certain extent.
The application method of the die-casting aluminum smokeless whitening detergent comprises the following steps:
cleaning cast aluminum by using a weakly alkaline degreasing agent, immersing the cast aluminum in the solution for 5-10min, taking out the cast aluminum, washing the cast aluminum by using clean water, and drying the cast aluminum by blowing.
Detailed Description
In the embodiment, the nano silicon dioxide emulsion is small-particle size silica sol XS-25 of Zhejiang space chemical company Limited, and the solid content is 25 +/-1 percent, and the particle size is 7-9 nm.
Example 1
13.6 percent of sulfamic acid,
8.6 percent of benzoic acid,
20 percent of glacial acetic acid,
AEO-96.8%，
12.0 percent of nano silicon dioxide emulsion,
5.1 percent of sodium dodecyl sulfate,
3.6 percent of lactic acid,
6.6 percent of glycerin,
the balance of water.
Example 2
13 percent of sulfamic acid,
8 percent of benzoic acid,
21 percent of glacial acetic acid,
AEO-97%，
12.5 percent of nano silicon dioxide emulsion,
5.5 percent of sodium dodecyl sulfate,
3.5 percent of lactic acid,
7 percent of glycerin,
the balance of water.
Example 3
15 percent of sulfamic acid,
9 percent of benzoic acid,
19 percent of glacial acetic acid,
AEO-97%，
13 percent of nano silicon dioxide emulsion,
6 percent of sodium dodecyl sulfate,
4 percent of lactic acid,
6 percent of glycerin,
the balance of water.
Comparative example 1
The glacial acetic acid in example 3 was removed and the amount was made up to lactic acid as follows:
15 percent of sulfamic acid,
9 percent of benzoic acid,
AEO-97%，
13 percent of nano silicon dioxide emulsion,
6 percent of sodium dodecyl sulfate,
23 percent of lactic acid,
6 percent of glycerin,
the balance of water.
Comparative example 2
The lactic acid in example 3 was removed and the amount was supplemented to glacial acetic acid as follows:
15 percent of sulfamic acid,
9 percent of benzoic acid,
AEO-97%，
13 percent of nano silicon dioxide emulsion,
6 percent of sodium dodecyl sulfate,
23 percent of glacial acetic acid,
6 percent of glycerin,
the balance of water.
Comparative example 3
The benzoic acid from example 3 was removed and the amount was supplemented to lactic acid as follows:
15 percent of sulfamic acid,
19 percent of glacial acetic acid,
AEO-97%，
13 percent of nano silicon dioxide emulsion,
6 percent of sodium dodecyl sulfate,
13 percent of lactic acid,
6 percent of glycerin,
the balance of water.
Cleaning cast aluminum with weakly alkaline degreasing agent, soaking in the above whitening agent for 10min, taking out, washing with clean water, and blow-drying.
The results of the performance tests of the above examples are as follows:
the results of the performance tests of the above comparative examples are as follows:
Claims (8)
1. the die-casting aluminum smokeless whitening detergent is characterized by being prepared from the following raw materials in percentage by weight: 10-15% of sulfamic acid, 7-9% of benzoic acid, 15-25% of glacial acetic acid, 6-9% of fatty alcohol-polyoxyethylene ether, 10-15% of nano-silica emulsion, 3-7% of sodium dodecyl sulfate, 2-5% of lactic acid, 5-10% of glycerol and the balance of water.
2. The die-casting aluminum smokeless whitening detergent of claim 1, which is prepared from the following raw materials in percentage by weight: 10-15% of sulfamic acid, 7-9% of benzoic acid, 19-25% of glacial acetic acid, 6-9% of fatty alcohol-polyoxyethylene ether, 10-15% of nano-silica emulsion, 3-7% of sodium dodecyl sulfate, 2-5% of lactic acid, 5-10% of glycerol and the balance of water.
3. The die-casting aluminum smokeless whitening detergent of claim 1, which is prepared from the following raw materials in percentage by weight: 13.6% of sulfamic acid, 8.6% of benzoic acid, 20% of glacial acetic acid, 6.8% of fatty alcohol-polyoxyethylene ether, 12.0% of nano-silica emulsion, 5.1% of sodium dodecyl sulfate, 3.6% of lactic acid, 6.6% of glycerol and the balance of water.
4. The die-casting aluminum smokeless whitening detergent of claim 1, wherein the nano-silica emulsion is XS-25 of Zhejiang Utada chemical Co.
5. The die cast aluminum smokeless whitening detergent of claim 1, wherein the fatty alcohol-polyoxyethylene ether is AEO-9.
6. The preparation method of the die-casting aluminum smokeless whitening detergent according to claim 1, which is characterized by sequentially comprising the following steps of: adding water into a reaction kettle, sequentially adding sulfamic acid, benzoic acid, glacial acetic acid and lactic acid, stirring for 10-15 minutes, adding fatty alcohol-polyoxyethylene ether, glycerol, sodium dodecyl sulfate and nano-silica emulsion, stirring for 2-2.5 hours, analyzing, detecting and packaging.
7. Use of the whitening composition of claim 1 in die-cast aluminum whitening.
8. The application of the whitening agent in die-casting aluminum whitening according to claim 7, which is characterized in that the die-casting aluminum is cleaned by using a weakly alkaline degreasing agent, then is immersed in the whitening agent for 5-10min, is taken out, is washed by using clean water and is dried by blowing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011366393.XA CN112522721B (en) | 2020-11-29 | 2020-11-29 | Die-casting aluminum smokeless whitening agent, preparation method and application |
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| CN202011366393.XA CN112522721B (en) | 2020-11-29 | 2020-11-29 | Die-casting aluminum smokeless whitening agent, preparation method and application |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373478A (en) * | 2010-08-20 | 2012-03-14 | 3M创新有限公司 | Rust removal composition |
| CN106283079A (en) * | 2016-09-07 | 2017-01-04 | 马鞍山纽泽科技服务有限公司 | A kind of Environment-friendlyrust rust inhibitor |
| CN109440123A (en) * | 2018-11-30 | 2019-03-08 | 佛山市海明威生态科技股份有限公司 | A kind of die casting aluminium smokelessly whitens agent and its preparation |
-
2020
- 2020-11-29 CN CN202011366393.XA patent/CN112522721B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373478A (en) * | 2010-08-20 | 2012-03-14 | 3M创新有限公司 | Rust removal composition |
| CN103069050A (en) * | 2010-08-20 | 2013-04-24 | 3M创新有限公司 | Rust removing composition |
| CN106283079A (en) * | 2016-09-07 | 2017-01-04 | 马鞍山纽泽科技服务有限公司 | A kind of Environment-friendlyrust rust inhibitor |
| CN109440123A (en) * | 2018-11-30 | 2019-03-08 | 佛山市海明威生态科技股份有限公司 | A kind of die casting aluminium smokelessly whitens agent and its preparation |
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