CN115613044B - Cold-rolled steel plate oil-removing ash-removing phosphorus-free degreasing agent, preparation method and application - Google Patents
Cold-rolled steel plate oil-removing ash-removing phosphorus-free degreasing agent, preparation method and application Download PDFInfo
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- CN115613044B CN115613044B CN202211187132.0A CN202211187132A CN115613044B CN 115613044 B CN115613044 B CN 115613044B CN 202211187132 A CN202211187132 A CN 202211187132A CN 115613044 B CN115613044 B CN 115613044B
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- 238000005237 degreasing agent Methods 0.000 title claims abstract description 25
- 239000013527 degreasing agent Substances 0.000 title claims abstract description 25
- 239000010960 cold rolled steel Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title description 4
- 238000005238 degreasing Methods 0.000 claims abstract description 25
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 21
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 21
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- OMDQUFIYNPYJFM-XKDAHURESA-N (2r,3r,4s,5r,6s)-2-(hydroxymethyl)-6-[[(2r,3s,4r,5s,6r)-4,5,6-trihydroxy-3-[(2s,3s,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]methoxy]oxane-3,4,5-triol Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@@H]1OC[C@@H]1[C@@H](O[C@H]2[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O2)O)[C@H](O)[C@H](O)[C@H](O)O1 OMDQUFIYNPYJFM-XKDAHURESA-N 0.000 claims abstract description 15
- 229920000926 Galactomannan Polymers 0.000 claims abstract description 15
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims abstract description 14
- 229940103272 aluminum potassium sulfate Drugs 0.000 claims abstract description 14
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 claims abstract description 14
- 239000001632 sodium acetate Substances 0.000 claims abstract description 14
- 235000017281 sodium acetate Nutrition 0.000 claims abstract description 14
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 13
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 13
- ONLRKTIYOMZEJM-UHFFFAOYSA-N n-methylmethanamine oxide Chemical compound C[NH+](C)[O-] ONLRKTIYOMZEJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 11
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 8
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical group [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 claims description 7
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- -1 sodium fatty alcohol Chemical class 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 229920001661 Chitosan Polymers 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000004088 foaming agent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- BACYUWVYYTXETD-UHFFFAOYSA-N N-Lauroylsarcosine Chemical group CCCCCCCCCCCC(=O)N(C)CC(O)=O BACYUWVYYTXETD-UHFFFAOYSA-N 0.000 description 1
- JNGWKQJZIUZUPR-UHFFFAOYSA-N [3-(dodecanoylamino)propyl](hydroxy)dimethylammonium Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)[O-] JNGWKQJZIUZUPR-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000861 blow drying Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- GNHOJBNSNUXZQA-UHFFFAOYSA-J potassium aluminium sulfate dodecahydrate Chemical group O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GNHOJBNSNUXZQA-UHFFFAOYSA-J 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 108700004121 sarkosyl Proteins 0.000 description 1
- 238000002444 silanisation Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- 238000009736 wetting Methods 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
- 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
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/19—Iron or steel
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a degreasing and ash removal phosphorus-free degreasing agent for a cold-rolled steel plate, which is prepared from the following components in percentage by weight: 6-8% of galactomannan, 1-2% of aluminum potassium sulfate, 5-7% of sodium dodecyl sulfate, 8-10% of cocamidopropyl dimethyl amine oxide, 8-10% of fatty alcohol polyoxyethylene ether sodium sulfate, 3-5% of penetrant, 8-12% of sodium acetate and the balance of water. The aluminum potassium sulfate can cluster the galactomannan molecules together to form a high-adhesion substance, and the high-adhesion substance can rapidly adhere impurities such as dust, iron powder and the like on a cold-rolled test piece.
Description
Technical Field
The invention belongs to the technical field of metal surface treatment, and particularly relates to a degreasing and ash removal phosphorus-free degreasing agent for a cold-rolled steel plate and a preparation method thereof.
Background
In the current metal surface treatment industry, before electrophoresis or spraying, an environment-friendly phosphorus-free and heavy metal-free silane treating agent or a nano ceramic agent is basically used for film formation treatment. Before silanization or ceramic treatment, the surface of the cold-rolled steel plate must be cleaned of greasy dirt, dust and various impurities. The greasy dirt, dust and various impurities are not removed cleanly, so that the film forming quality of a silane film or a ceramic film can be influenced, and the adhesive force and corrosion resistance of a coating can be influenced. However, degreasing agent products sold in the market at present have good degreasing effect and almost no effect on removing dust and various impurities.
Chinese patent CN201611156563.5 discloses a new material capable of rapidly settling suspended particulate matter, comprising wetting agent, foaming agent, coating agent, binder, settling agent, and dispersing agent; the wetting agent is EO-PO polyol, the foaming agent is N-lauroyl sarcosine sodium, the coating agent is carboxymethyl chitosan, the binder is water glass, the sedimentation agent is aluminum potassium sulfate dodecahydrate, and the dispersing agent is a mixture of water and ethanol; the wetting agent wets suspended particles with different compositions and particle sizes and adjusts the surface tension of the suspended particles; the foaming agent can increase the collision capturing probability of the material and suspended particles; the coating agent can coat suspended particles, so that the suspended particles can be firmly captured, and secondary pollution is avoided; the binding agent can enhance the bonding strength of suspended particles and the material of the invention; the sedimentation accelerating agent is used for agglomerating the coated and bonded suspended particles and accelerating sedimentation; the invention greatly improves the removal effect of suspended particles by the principles of wetting, foaming, coating, bonding and accelerating sedimentation. The patent is mainly applied to the aspect of treating the atmospheric suspended particulate matters, and has the effect of rapid sedimentation on the atmospheric suspended matters; the invention is applied to a metal cold-rolled sheet in a liquid phase, plays roles in removing greasy dirt, dust, iron powder and the like, belongs to different fields, and plays roles differently.
Disclosure of Invention
The invention aims to provide a phosphorous-free degreasing agent for degreasing and dedusting of a cold-rolled steel plate, which can remove oil and ash at the same time and has good cleaning effect.
The invention relates to a degreasing, ash removal and phosphorus-free degreasing agent for a cold-rolled steel plate, which is prepared from the following components in percentage by weight:
6-8% of galactomannan, 1-2% of aluminum potassium sulfate, 5-7% of sodium dodecyl sulfate, 8-10% of cocamidopropyl dimethyl amine oxide, 8-10% of fatty alcohol polyoxyethylene ether sodium sulfate, 3-5% of penetrant, 8-12% of sodium acetate and the balance of water.
Preferably, the degreasing and ash removal phosphorus-free degreasing agent for the cold-rolled steel plate is prepared from the following components in percentage by weight:
8% of galactomannan, 2% of aluminum potassium sulfate, 6% of sodium dodecyl sulfonate, 9% of cocamidopropyl dimethyl amine oxide, 9% of fatty alcohol polyoxyethylene ether sodium sulfate, 3% of sodium sulfate, 4% of penetrating agent, 9% of sodium acetate and the balance of water.
The penetrating agent is preferably dodecyl trimethyl ammonium bromide.
The preparation method of the invention comprises the following steps:
(1) Weighing the rest water, starting a stirrer, keeping the rotating speed at 800-1000r/min, adding galactomannan and aluminum potassium sulfate, and reacting completely after 1-2 h;
(2) And then sequentially adding sodium dodecyl sulfate, cocamidopropyl dimethyl amine oxide, sodium fatty alcohol polyoxyethylene ether sulfate, sodium sulfate, penetrating agent and sodium acetate, stirring uniformly, and cooling to room temperature to obtain the sample.
The invention also provides application of the degreasing and dust-removing phosphorus-free degreasing agent in degreasing of the cold-rolled steel sheet.
The using method is as follows:
adding water (i.e. degreasing agent concentration is 3-5wt% after adding water) according to the proportion of 3-5wt%, heating the bath solution to 50-60deg.C, placing the cold-rolled test piece therein for 3-6 min, taking out, washing with clear water, and blow-drying with hot air.
The mechanism of the degreasing and ash removal phosphorus-free degreasing agent for the cold-rolled steel plate is as follows:
The galactomannan is a water-soluble viscous substance, and when the aluminum potassium sulfate is added, the galactomannan molecules are strung together to form a high-adhesion substance, which can rapidly adhere impurities such as dust, iron powder and the like on a cold-rolled test piece. The adhered dust, iron powder and other impurities are separated from the surface of the cold-rolled test piece and enter the degreasing tank liquid under the wrapping and rolling-off actions of penetrating agent and surfactant (cocoamidopropyl dimethyl amine oxide and fatty alcohol polyoxyethylene ether sodium sulfate). Sodium dodecyl sulfate is an emulsifier and a penetrating agent; sodium acetate and sodium sulfate are water softener; sodium acetate is a strong alkali weak acid salt and has saponification effect on greasy dirt.
In order to more clearly illustrate the present invention, the following examples are set forth, but they do not limit the scope of the invention in any way.
Detailed Description
Example 1
The degreasing and ash removing phosphorus-free degreasing agent for the cold-rolled steel plate is prepared from the following components in percentage by weight:
7% of galactomannan, 2% of aluminum potassium sulfate, 6% of sodium dodecyl sulfonate, 9% of cocamidopropyl dimethyl amine oxide, 10% of fatty alcohol polyoxyethylene ether sodium sulfate, 3% of sodium sulfate, 4% of dodecyl trimethyl ammonium bromide, 9% of sodium acetate and the balance of water.
Example 2
The degreasing and ash removing phosphorus-free degreasing agent for the cold-rolled steel plate is prepared from the following components in percentage by weight:
8% of galactomannan, 2% of aluminum potassium sulfate, 6% of sodium dodecyl sulfonate, 9% of cocamidopropyl dimethyl amine oxide, 9% of fatty alcohol polyoxyethylene ether sodium sulfate, 3% of sodium sulfate, 4% of dodecyl trimethyl ammonium bromide, 9% of sodium acetate and the balance of water.
Example 3
The degreasing and ash removing phosphorus-free degreasing agent for the cold-rolled steel plate is prepared from the following components in percentage by weight:
6% of galactomannan, 2% of aluminum potassium sulfate, 7% of sodium dodecyl sulfonate, 9% of cocamidopropyl dimethyl amine oxide, 9% of fatty alcohol polyoxyethylene ether sodium sulfate, 3% of sodium sulfate, 4% of dodecyl trimethyl ammonium bromide, 11% of sodium acetate and the balance of water.
Example 4
The degreasing and ash removing phosphorus-free degreasing agent for the cold-rolled steel plate is prepared from the following components in percentage by weight:
6% of galactomannan, 2% of aluminum potassium sulfate, 7% of sodium dodecyl sulfonate, 9% of cocamidopropyl dimethyl amine oxide, 8% of fatty alcohol polyoxyethylene ether sodium sulfate, 3% of sodium sulfate, 5% of dodecyl trimethyl ammonium bromide, 12% of sodium acetate and the balance of water.
Comparative example 1
Comparative example 1 the galactomannan of example 4 was replaced with carboxymethyl chitosan, the other being the same as in example 4.
The degreasing and ash removing phosphorus-free degreasing agent for the cold-rolled steel plate is prepared from the following components in percentage by weight:
6% of carboxymethyl chitosan, 2% of aluminum potassium sulfate, 7% of sodium dodecyl sulfonate, 9% of cocamidopropyl dimethyl amine oxide, 8% of fatty alcohol polyoxyethylene ether sodium sulfate, 3% of sodium sulfate, 5% of dodecyl trimethyl ammonium bromide, 12% of sodium acetate and the balance of water.
The application method of the degreasing, ash removing and phosphorus-free degreasing agent for the cold-rolled steel plate comprises the following steps: adding water according to the proportion of 5wt%, heating the bath solution to 50-60 ℃, putting the cold-rolled test piece into the bath solution for 3-6 minutes, taking out the cold-rolled test piece, washing the cold-rolled test piece with clear water, and drying the cold-rolled test piece with hot air.
The test results of the above examples and comparative examples are shown in Table 1, in which the shrinkage of the dyne pen indicates that the degreasing is not clean, and the higher the dyne pen model is, the cleaner the degreasing is.
TABLE 1
| Project | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example 1 |
| Cleanliness degree | 21RFU | 18RFU | 19RFU | 23RFU | 63RFU |
| Dyne pen test | No. 44 non-shrink | No. 44 non-shrink | No. 44 non-shrink | No. 44 non-shrink | 38# Shrinkage |
The technical indexes of the oil-removing, ash-removing and phosphorus-free degreasing agent for the cold-rolled steel sheet are shown in table 2.
TABLE 2
Claims (6)
1. The degreasing and ash removal phosphorus-free degreasing agent for the cold-rolled steel plate is characterized by comprising the following components in percentage by weight: 6-8% of galactomannan, 1-2% of aluminum potassium sulfate, 5-7% of sodium dodecyl sulfate, 8-10% of cocamidopropyl dimethyl amine oxide, 8-10% of fatty alcohol polyoxyethylene ether sodium sulfate, 3-5% of penetrant, 8-12% of sodium acetate and the balance of water.
2. The degreasing and ash-removing phosphorus-free degreasing agent for cold-rolled steel sheets according to claim 1, wherein the degreasing agent is prepared from the following components in percentage by weight: 8% of galactomannan, 2% of aluminum potassium sulfate, 6% of sodium dodecyl sulfonate, 9% of cocamidopropyl dimethyl amine oxide, 9% of fatty alcohol polyoxyethylene ether sodium sulfate, 3% of sodium sulfate, 4% of penetrating agent, 9% of sodium acetate and the balance of water.
3. The degreasing and ash-removing phosphorus-free degreasing agent for cold-rolled steel sheets according to claim 1, wherein the penetrating agent is dodecyl trimethyl ammonium bromide.
4. The method for preparing the degreasing, dust-removing and phosphorus-free degreasing agent for the cold-rolled steel sheet according to claim 1, comprising the following steps in sequence:
(1) Weighing water, starting a stirrer, keeping the rotating speed at 800-1000r/min, adding galactomannan and aluminum potassium sulfate, and reacting completely after 1-2 h;
(2) And then sequentially adding sodium dodecyl sulfate, cocamidopropyl dimethyl amine oxide, sodium fatty alcohol polyoxyethylene ether sulfate, sodium sulfate, penetrating agent and sodium acetate, stirring uniformly, and cooling to room temperature to obtain the sample.
5. Use of the degreasing and dust-removing phosphorus-free degreasing agent for cold-rolled steel sheets according to claim 1 in degreasing of cold-rolled steel sheets.
6. The application according to claim 5, the specific usage method is as follows:
adding water into the degreasing agent for degreasing and dedusting the cold-rolled steel plate according to the proportion of 3-5wt%, heating the bath solution to 50-60 ℃, putting the cold-rolled test piece into the bath solution for 3-6 minutes, taking out the test piece, washing the test piece with clear water, and drying the test piece with hot air.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211187132.0A CN115613044B (en) | 2022-09-28 | 2022-09-28 | Cold-rolled steel plate oil-removing ash-removing phosphorus-free degreasing agent, preparation method and application |
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|---|---|---|---|
| CN202211187132.0A CN115613044B (en) | 2022-09-28 | 2022-09-28 | Cold-rolled steel plate oil-removing ash-removing phosphorus-free degreasing agent, preparation method and application |
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| CN109609969A (en) * | 2018-12-28 | 2019-04-12 | 广州旭淼新材料科技有限公司 | A kind of room temperature ash disposal degreasing agent and preparation method thereof |
| CN110257841A (en) * | 2019-08-01 | 2019-09-20 | 南京古田化工有限公司 | A kind of aqueous cleaning agent and preparation method thereof |
| CN110983347A (en) * | 2019-12-12 | 2020-04-10 | 广东红日星实业有限公司 | Oil and dust removing cleaning agent and preparation method thereof |
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