CN116479426A - Aluminum alloying polishing additive and preparation method thereof - Google Patents
Aluminum alloying polishing additive and preparation method thereof Download PDFInfo
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- CN116479426A CN116479426A CN202310189952.1A CN202310189952A CN116479426A CN 116479426 A CN116479426 A CN 116479426A CN 202310189952 A CN202310189952 A CN 202310189952A CN 116479426 A CN116479426 A CN 116479426A
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- 238000005498 polishing Methods 0.000 title claims abstract description 48
- 239000000654 additive Substances 0.000 title claims abstract description 40
- 230000000996 additive effect Effects 0.000 title claims abstract description 37
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000005275 alloying Methods 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 34
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 34
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 32
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims abstract description 31
- 238000005260 corrosion Methods 0.000 claims abstract description 22
- 230000007797 corrosion Effects 0.000 claims abstract description 22
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 17
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims abstract description 14
- 239000003112 inhibitor Substances 0.000 claims abstract description 10
- 239000000080 wetting agent Substances 0.000 claims abstract description 7
- 238000005282 brightening Methods 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000008139 complexing agent Substances 0.000 claims abstract description 5
- 229940083575 sodium dodecyl sulfate Drugs 0.000 claims description 30
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 16
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 12
- 239000012964 benzotriazole Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 6
- 229920001732 Lignosulfonate Polymers 0.000 claims description 6
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 6
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 6
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 6
- 235000011187 glycerol Nutrition 0.000 claims description 6
- 235000019357 lignosulphonate Nutrition 0.000 claims description 6
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 6
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 6
- 229960001763 zinc sulfate Drugs 0.000 claims description 6
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 4
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims description 4
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 4
- 239000011790 ferrous sulphate Substances 0.000 claims description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 4
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 4
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 4
- 239000000661 sodium alginate Substances 0.000 claims description 4
- 235000010413 sodium alginate Nutrition 0.000 claims description 4
- 229940005550 sodium alginate Drugs 0.000 claims description 4
- 235000012207 sodium gluconate Nutrition 0.000 claims description 4
- 239000000176 sodium gluconate Substances 0.000 claims description 4
- 229940005574 sodium gluconate Drugs 0.000 claims description 4
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 2
- 150000002191 fatty alcohols Chemical class 0.000 claims description 2
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 claims description 2
- 229920000136 polysorbate Polymers 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract description 7
- 229910017604 nitric acid Inorganic materials 0.000 abstract description 7
- 125000000129 anionic group Chemical group 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 abstract description 5
- 238000001179 sorption measurement Methods 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 4
- 229910052759 nickel Inorganic materials 0.000 abstract description 4
- 229910002651 NO3 Inorganic materials 0.000 abstract description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003945 anionic surfactant Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 7
- 238000005457 optimization Methods 0.000 description 7
- 235000013772 propylene glycol Nutrition 0.000 description 5
- 230000005764 inhibitory process Effects 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229960004063 propylene glycol Drugs 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 239000012747 synergistic agent Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/02—Light metals
- C23F3/03—Light metals with acidic solutions
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/149—Heterocyclic compounds containing nitrogen as hetero atom
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/16—Sulfur-containing compounds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- ing And Chemical Polishing (AREA)
Abstract
The invention discloses an aluminum alloying polishing additive and a preparation method thereof, wherein the aluminum alloying polishing additive comprises, by weight, 75-80 parts of phosphoric acid, 6-15 parts of sulfuric acid, 3-5 parts of corrosion inhibitor, 3-8 parts of synergist, 1.5-2 parts of complexing agent, 1-1.5 parts of wetting agent and 0.8-1.5 parts of brightening agent. According to the invention, the corrosion inhibitor and the synergist are compounded, the charge distribution and interface performance of the metal surface are changed through sodium dodecyl sulfonate, sodium dodecyl benzene sulfonate, sodium dodecyl sulfate and the like with anionic properties, an adsorption film is formed on the aluminum alloy surface, so that the corrosion speed is reduced, the glossiness is more uniform, the corrosion of diacid on the aluminum alloy surface is blocked by bubbles generated by the anionic surfactant, the slow release effect is improved, and the product is environment-friendly and safe and does not contain environmental harmful substances such as nickel, nitric acid, nitrate and the like.
Description
Technical Field
The invention relates to the technical field of metal surface treatment agents, in particular to an aluminum alloying polishing additive and a preparation method thereof.
Background
The chemical polishing of aluminum alloys generally employs a tri-acid process containing phosphoric acid, sulfuric acid and nitric acid, but toxic nitrogen oxides are easily generated during the process due to the strong oxidizing property of nitric acid and the characteristic of nitric acid itself, and uneven brightness of the polished surface is caused due to the up-and-down fluctuation of the concentration of nitric acid. Thus, currently, aluminum alloy chemical polishing additives are basically phosphoric acid-based chemicals, supplemented with other additives.
The chemical polishing additive can improve the glossiness of the aluminum alloy in the chemical polishing process, and maintain the uniformity and the non-corrosion of the surface of the product. However, in the practical application process, the method is limited by influencing factors such as temperature, operation time, idle time after the groove is formed, the surface effect of a workpiece is influenced, and the ecological environment is influenced due to the fact that the partial chemical polishing additive contains heavy metals such as nickel and non-environment-friendly substances.
Disclosure of Invention
The invention aims to provide an aluminum alloying polishing additive and a preparation method thereof, wherein the charge distribution and interface performance of the metal surface are changed through sodium dodecyl sulfonate, sodium dodecyl benzene sulfonate, sodium dodecyl sulfate and the like with anionic properties, an adsorption film is formed on the aluminum alloy surface, so that the corrosion speed is reduced, the glossiness is more uniform, the corrosion of diacid to the aluminum alloy surface is blocked by bubbles generated by an anionic surfactant, and the slow release effect is improved.
In order to achieve the above purpose, the invention adopts the following technical scheme: the aluminum alloying polishing additive comprises the following components in parts by weight:
as a further optimization, the corrosion inhibitor comprises one or more of tungstate, molybdate, benzotriazole and sulfonated lignin.
As further optimization, the synergist is one or more of sodium dodecyl sulfonate, sodium dodecyl benzene sulfonate and sodium dodecyl sulfate, and passivation of acid on the surface of the aluminum alloy is slowed down by utilizing film forming characteristics of three substances on the surface of the aluminum alloy and dissipation characteristics of bubbles of the surfactant.
As further optimization, the mass ratio of the sodium dodecyl sulfate to the sodium dodecyl benzene sulfonate to the sodium dodecyl sulfate is 1 (1-1.2) (0.5-0.8), and the corrosion inhibition effect is realized by compounding three substances and utilizing different characteristics of the three components.
As a further optimization, the complexing agent comprises one or more of sodium gluconate, sodium alginate, EDTA, triethanolamine and diethanolamine.
As a further optimization, the wetting agent comprises one or more of propylene glycol, glycerin, tween, ethanol, fatty alcohol and the like.
As a further optimization, the brightening agent comprises one or more of ferric sulfate, ferrous sulfate, copper sulfate and zinc sulfate.
The invention also provides a preparation method of the aluminum alloy polishing additive, which comprises the steps of sequentially adding phosphoric acid and sulfuric acid into a reaction kettle in a stirring start state, adding a corrosion inhibitor, a synergist, a complexing agent, a wetting agent and a brightening agent in batches, stirring to fully dissolve and uniformly mix the components, and thus obtaining the aluminum alloy polishing additive.
As a further optimization, the reaction temperature in the steps is 20-40 ℃ and the reaction time is 1-5h.
Compared with the prior art, the invention has the following beneficial effects:
1. the corrosion inhibitor is compounded with the synergist, and the synergist is sodium dodecyl sulfonate and/or sodium dodecyl benzene sulfonate and/or sodium dodecyl sulfate with anionic property, so that the charge distribution and interface performance of the metal surface can be changed, an adsorption film is formed on the aluminum alloy surface, the corrosion speed is reduced, and the glossiness is more uniform;
2. bubbles generated by the anionic surfactant can prevent the diacid from corroding the surface of the aluminum alloy, and the slow release effect is improved.
3. The wetting agent can sufficiently wet the surface of the aluminum alloy, is beneficial to the action of the corrosion inhibitor and the synergist on the surface of the aluminum alloy, and improves the corrosion inhibition effect;
4. the invention is environment-friendly and safe, and does not contain environmental harmful substances such as nickel, nitric acid, nitrate and the like.
Detailed Description
The following are specific examples of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these examples.
Example 1
The aluminum alloying polishing additive comprises the following components in parts by weight: 75 parts of phosphoric acid, 12 parts of sulfuric acid, 5 parts of benzotriazole, 6 parts of sodium dodecyl sulfate, 1.5 parts of sodium alginate, 1.5 parts of propylene glycol and 1 part of ferrous sulfate.
The preparation method comprises the following steps: and sequentially adding phosphoric acid and sulfuric acid into a reaction kettle in a stirring start state at room temperature, then adding benzotriazole, sodium dodecyl sulfate, sodium alginate, propylene glycol and ferrous sulfate in batches, stirring for 2 hours to fully dissolve and uniformly mix the materials, and thus obtaining the aluminum alloy polishing additive.
Example 2
The aluminum alloying polishing additive comprises the following components in parts by weight: 77 parts of phosphoric acid, 10 parts of sulfuric acid, 5 parts of sulfonated lignin, 6 parts of sodium dodecyl sulfate, 2 parts of triethanolamine, 1.5 parts of ethanol and 1.5 parts of copper sulfate.
The preparation method comprises the following steps: and sequentially adding phosphoric acid and sulfuric acid into a reaction kettle in a stirring start state at room temperature, then adding sulfonated lignin, sodium dodecyl sulfate, triethanolamine, ethanol and copper sulfate in batches, stirring for 2 hours to fully dissolve and uniformly mix the materials, and thus obtaining the aluminum alloying polishing additive.
Example 3
The aluminum alloying polishing additive comprises the following components in parts by weight: 80 parts of phosphoric acid, 8 parts of sulfuric acid, 5 parts of sulfonated lignin, 2 parts of sodium dodecyl sulfate, 2.4 parts of sodium dodecyl benzene sulfonate, 1.6 parts of sodium dodecyl sulfate, 1.5 parts of triethanolamine, 1 part of ethanol and 1.5 parts of copper sulfate.
The preparation method comprises the following steps: and sequentially adding phosphoric acid and sulfuric acid into a reaction kettle in a stirring start state at room temperature, then adding sulfonated lignin, sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, triethanolamine, ethanol and copper sulfate in batches, and stirring for 2 hours to fully dissolve and uniformly mix the materials to obtain the aluminum alloy polishing additive.
Example 4
The aluminum alloying polishing additive comprises the following components in parts by weight: 78 parts of phosphoric acid, 9 parts of sulfuric acid, 4 parts of benzotriazole, 2 parts of sodium dodecyl sulfate, 2 parts of sodium dodecyl benzene sulfonate, 1.6 parts of sodium dodecyl sulfate, 1.5 parts of EDTA, 1.5 parts of glycerin and 1 part of ferric sulfate.
The preparation method comprises the following steps: and sequentially adding phosphoric acid and sulfuric acid into a reaction kettle in a stirring start state at room temperature, then adding benzotriazole, sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, EDTA, glycerol and ferric sulfate in batches, and stirring for 2 hours to fully dissolve and uniformly mix the materials to obtain the aluminum alloy polishing additive.
Example 5
The aluminum alloying polishing additive comprises the following components in parts by weight: 78 parts of phosphoric acid, 8 parts of sulfuric acid, 5 parts of benzotriazole, 2 parts of sodium dodecyl sulfate, 2 parts of sodium dodecyl benzene sulfonate, 1 part of sodium dodecyl sulfate, 2 parts of EDTA, 1 part of glycerin and 1.5 parts of zinc sulfate.
The preparation method comprises the following steps: and sequentially adding phosphoric acid and sulfuric acid into a reaction kettle in a stirring start state at room temperature, then adding benzotriazole, sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, EDTA, glycerol and zinc sulfate in batches, and stirring for 2 hours to fully dissolve and uniformly mix the materials to obtain the aluminum alloy polishing additive.
Example 6
The aluminum alloying polishing additive comprises the following components in parts by weight: 75 parts of phosphoric acid, 10 parts of sulfuric acid, 5 parts of benzotriazole, 5 parts of sodium dodecyl sulfate, 1.5 parts of sodium gluconate, 1 part of propylene glycol and 1.5 parts of zinc sulfate.
The preparation method comprises the following steps: and sequentially adding phosphoric acid and sulfuric acid into a reaction kettle in a stirring start state at room temperature, then adding benzotriazole, sodium dodecyl sulfate, sodium gluconate, propylene glycol and zinc sulfate in batches, stirring for 2 hours to fully dissolve and uniformly mix the materials, and thus obtaining the aluminum alloy polishing additive.
Comparative example 1
This comparative example differs from example 1 in that sodium dodecyl sulfate was not added, but the amount of benzotriazole therein was increased to 11 parts.
Comparative example 2
This comparative example differs from example 1 in that benzotriazole was not added, but the amount of sodium dodecyl sulfate was increased to 11 parts.
Comparative example 3
Conventional commercial aluminum alloying polishing additive, chemical polishing additive DL-310 (Suzhou De Chemicals Co., ltd.).
Application examples
The aluminum alloying polishing additives prepared in examples 1 to 6 and comparative examples 1 to 2 and the chemical polishing additive in comparative example 3 were prepared, respectively, and the sand blasted aluminum alloy articles were subjected to polishing treatment at a polishing temperature of 75 ℃ for a polishing time of 60s, and the polishing effects were as shown in the following table (wherein 60 ° gloss was obtained by sampling on a sample plate according to a five-point sampling method, and calculating the average value thereof).
According to the experimental data, the corrosion inhibitor and the synergist are compounded, and the synergist is sodium dodecyl sulfonate and/or sodium dodecyl benzene sulfonate and/or sodium dodecyl sulfate with anionic property, so that the charge distribution and interface property of the metal surface can be changed, an adsorption film is formed on the aluminum alloy surface, the aluminum alloy surface is prevented from being further oxidized and corroded, the corrosion speed is slowed down, the polishing process can be eased, the glossiness is better and more uniform, and the phenomena of flow marks, surface patterns and the like can be effectively avoided due to the existence of the adsorption film; in the invention, the synergistic agent with anionic property is also a surfactant, and has the function of the surfactant, when the aluminum alloy is put into the polishing solution, bubbles can be generated due to the function of the surfactant and can exist in the polishing solution or be partially adhered to the surface of the aluminum alloy, and the bubbles can block the corrosion of diacid to the surface of the aluminum alloy in the process of dissipating and cracking or separating from the surface of the aluminum alloy, so that the corrosion inhibition effect can be realized; the wetting agent can sufficiently wet the surface of the aluminum alloy, is favorable for the corrosion inhibitor and the synergist to act on the surface of the aluminum alloy, and improves the corrosion inhibition effect.
The aluminum alloy chemical polishing additive has good brightness stabilizing effect, can contain better chemical polishing temperature (60-90 ℃), has better chemical polishing space-time lag time, can ensure uniform brightness of the surface of the treated product, and is environment-friendly and safe, and does not contain environmental harmful substances such as nickel, nitric acid, nitrate and the like.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The aluminum alloying polishing additive is characterized by comprising the following components in parts by weight:
2. the aluminum alloyed polishing additive of claim 1, wherein the corrosion inhibitor comprises one or more of tungstate, molybdate, benzotriazole, and sulfonated lignin.
3. The aluminum alloyed polishing additive of claim 1, wherein the synergist is one or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, and sodium dodecyl sulfate.
4. An aluminum alloy polishing additive as claimed in claim 3, wherein the mass ratio of the sodium dodecyl sulfate, the sodium dodecyl benzene sulfonate and the sodium dodecyl sulfate is 1 (1-1.2): 0.5-0.8.
5. The aluminum alloyed polishing additive of claim 1, wherein the complexing agent comprises one or more of sodium gluconate, sodium alginate, EDTA, triethanolamine and diethanolamine.
6. The aluminum alloyed polishing additive of claim 1, wherein the wetting agent comprises one or more of propylene glycol, glycerin, tween, ethanol, and fatty alcohol.
7. The aluminum alloying polishing additive of claim 1, wherein the brightening agent comprises one or more of ferric sulfate, ferrous sulfate, copper sulfate, and zinc sulfate.
8. The method for preparing the aluminum alloy polishing additive according to any one of claims 1 to 7, wherein phosphoric acid and sulfuric acid are sequentially added into a reaction kettle in a stirring start state, a corrosion inhibitor, a synergist, a complexing agent, a wetting agent and a brightening agent are added in batches, and stirring is carried out to fully dissolve and uniformly mix the materials, so that the aluminum alloy polishing additive is prepared.
9. The method for preparing the aluminum alloy polishing additive according to claim 8, wherein the reaction temperature is 20-40 ℃ and the reaction time is 1-5h.
Priority Applications (1)
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| CN202310189952.1A CN116479426A (en) | 2023-03-02 | 2023-03-02 | Aluminum alloying polishing additive and preparation method thereof |
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| CN202310189952.1A CN116479426A (en) | 2023-03-02 | 2023-03-02 | Aluminum alloying polishing additive and preparation method thereof |
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| CN116479426A true CN116479426A (en) | 2023-07-25 |
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| CN202310189952.1A Pending CN116479426A (en) | 2023-03-02 | 2023-03-02 | Aluminum alloying polishing additive and preparation method thereof |
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| Country | Link |
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| CN (1) | CN116479426A (en) |
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2023
- 2023-03-02 CN CN202310189952.1A patent/CN116479426A/en active Pending
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