CN115029708A - Low-foam alkali-resistant water-based metal cleaner - Google Patents
Low-foam alkali-resistant water-based metal cleaner Download PDFInfo
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- CN115029708A CN115029708A CN202210673843.2A CN202210673843A CN115029708A CN 115029708 A CN115029708 A CN 115029708A CN 202210673843 A CN202210673843 A CN 202210673843A CN 115029708 A CN115029708 A CN 115029708A
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- Prior art keywords
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- low
- based metal
- alkali
- resistant water
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- 239000006260 foam Substances 0.000 title claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 48
- 239000002184 metal Substances 0.000 title claims abstract description 48
- 239000003513 alkali Substances 0.000 title claims abstract description 42
- -1 alkyl diphenyl ether Chemical compound 0.000 claims abstract description 25
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 24
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Natural products C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims abstract description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 17
- JSYPRLVDJYQMAI-ODZAUARKSA-N (z)-but-2-enedioic acid;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)\C=C/C(O)=O JSYPRLVDJYQMAI-ODZAUARKSA-N 0.000 claims abstract description 11
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 11
- 229920000642 polymer Polymers 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 11
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 6
- 239000003960 organic solvent Substances 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 15
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 15
- 229920001451 polypropylene glycol Polymers 0.000 claims description 15
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- 239000004115 Sodium Silicate Substances 0.000 claims description 12
- 238000005187 foaming Methods 0.000 claims description 12
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 12
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 12
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 229910052708 sodium Inorganic materials 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 229910052700 potassium Inorganic materials 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000001509 sodium citrate Substances 0.000 claims description 3
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 28
- 238000000034 method Methods 0.000 abstract description 25
- 239000012459 cleaning agent Substances 0.000 abstract description 23
- 238000009736 wetting Methods 0.000 abstract description 6
- 238000013329 compounding Methods 0.000 abstract description 3
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 abstract description 3
- 230000002441 reversible effect Effects 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 25
- 235000019198 oils Nutrition 0.000 description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 239000004721 Polyphenylene oxide Substances 0.000 description 8
- 229920000570 polyether Polymers 0.000 description 8
- 239000004094 surface-active agent Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 229910019142 PO4 Inorganic materials 0.000 description 5
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 4
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 4
- 235000011130 ammonium sulphate Nutrition 0.000 description 4
- 239000002518 antifoaming agent Substances 0.000 description 4
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 235000021317 phosphate Nutrition 0.000 description 4
- 239000010452 phosphate Substances 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- LGNQGTFARHLQFB-UHFFFAOYSA-N 1-dodecyl-2-phenoxybenzene Chemical compound CCCCCCCCCCCCC1=CC=CC=C1OC1=CC=CC=C1 LGNQGTFARHLQFB-UHFFFAOYSA-N 0.000 description 3
- 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 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- 239000013556 antirust agent Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
- 239000010775 animal oil Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 239000002173 cutting fluid Substances 0.000 description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 2
- 229930182470 glycoside Natural products 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 235000011008 sodium phosphates Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 description 2
- 239000008158 vegetable oil Substances 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- BWDBEAQIHAEVLV-UHFFFAOYSA-N 6-methylheptan-1-ol Chemical compound CC(C)CCCCCO BWDBEAQIHAEVLV-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 229960003237 betaine Drugs 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- GCCVBRCGRJWMDX-UHFFFAOYSA-N phenoxybenzene;sodium Chemical compound [Na].C=1C=CC=CC=1OC1=CC=CC=C1 GCCVBRCGRJWMDX-UHFFFAOYSA-N 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000019794 sodium silicate Nutrition 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 238000005303 weighing 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
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/032—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds
-
- 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
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)
- Detergent Compositions (AREA)
Abstract
The invention discloses a low-foam alkali-resistant water-based metal cleaner which is prepared from the following raw materials in percentage by weight: 1-15 parts of anionic surfactant, 5-19 parts of nonionic surfactant, 1-3 parts of inorganic auxiliary agent, 0-1 part of acrylic acid-maleic acid polymer, 5-10 parts of organic solvent and 50-75 parts of water; mixing and stirring uniformly to obtain the low-foam alkali-resistant water-based metal cleaner. In the invention, the end capping alcohol ether, the alkyl diphenyl ether sulfonate and the fatty alcohol polyoxyethylene polyoxypropylene ether sulfate have a synergistic effect, and the cleaning efficiency can be obviously improved by compounding and using; the obtained cleaning agent has low foam, is easy to rinse, has less wastewater discharge and strong alkali resistance, and can be used under the condition of high alkali concentration; the cleaning agent has a wetting reversal effect on the surface of the workpiece, and can effectively prevent the workpiece from being contaminated again by upper oil stains of the cleaning solution in the process of taking the cleaned workpiece out.
Description
Technical Field
The invention relates to a low-foam alkali-resistant water-based metal cleaner, belonging to the field of metal cleaners.
Background
In the production, use and maintenance processes of metal products, various dirt attached to the surface of the metal products need to be cleaned so as to ensure the smooth proceeding of the processing procedure, prevent corrosion and abrasion, ensure the internal and surface quality of the products and prolong the service life.
In order to improve the dirt-removing capability of the cleaning agent, a certain amount of alkaline auxiliary agent is usually added in the actual cleaning process. Common alkaline aids include sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium silicate, phosphates, and the like. Wherein, the alkalinity of the sodium hydroxide is strongest; the sodium carbonate and the sodium bicarbonate are alkaline after hydrolysis, so that the grease can be loosened, dispersed, emulsified and saponified; the sodium silicate exists in a colloid form after being hydrolyzed, has the functions of dispersing and stabilizing dirt, and simultaneously has a certain corrosion inhibition effect on certain metal base materials; the phosphate comprises sodium phosphate, sodium dihydrogen phosphate, disodium hydrogen phosphate, sodium tripolyphosphate, sodium pyrophosphate and the like, and the aqueous solution of the phosphate is alkaline and has good dispersion effect on large-particle dirt. The alkaline condition has strong capability of removing animal and vegetable oil, but the alkalinity is too strong during cleaning, which can cause the decomposition or precipitation of the surfactant in the cleaning agent and possibly generate corrosion to metals. Therefore, the screening of the formula of the cleaning agent suitable for the strong alkaline system has important significance for the actual industrial cleaning process.
The foam quantity in the industrial cleaning process directly influences the cleaning process, and the excessive foam quantity causes foam overflow, so that the waste of cleaning agents is caused, even the cleaning agent is stopped, and the cleaning agent is difficult to rinse. The defoaming agent is required to be added to a cleaning agent formula with too rich foam, but the problems of system turbidity, floating oil and the like can be caused by adding the defoaming agent, and the defoaming agent needs to be continuously added along with the prolonging of the cleaning time. Therefore, the selection of the low-foaming surfactant formula can solve a series of problems caused by too high foaming amount from the source.
Chinese patent CN112538633 discloses a recyclable metal cleaning agent and a preparation method thereof, which is prepared from the following raw materials by weight percentage: 10-90% of water; 0.01-90% of composite antirust agent; 0.01-30% of monoethanolamine; 0.01-90% of anionic surfactant; 0.01-90% of nonionic surfactant; 0.01-90% of amphoteric surfactant; 0.01-20% of solubilizer; 0.01-5% of wetting dispersant. The metal cleaning agent can be used as reuse water and directly added into a water-based metal cutting fluid tank, so that extra cleaning waste liquid is not generated, the basic performance of the cutting fluid is not influenced, and the total waste liquid discharge amount can be greatly reduced. The technical scheme disclosed in the patent comprises that an anionic surfactant contains phosphate, an amphoteric surfactant contains phosphate betaine, and the phosphorus-containing organic compound can cause water body pollution.
Chinese patent CN109825838 discloses a high-cleanliness metal cleaning agent and a method for prolonging the service life thereof, which is prepared from the following components in parts by weight: 2-5 parts of antirust agent, 5-8 parts of polyalcohol amine, 5-15 parts of sodium carbonate, 0.5-2 parts of settling agent, 5-10 parts of auxiliary agent, 3-10 parts of alkyl glycoside, 2-5 parts of benzotriazole, 0.2-2 parts of pH regulator and 45-65 parts of water. The metal cleaning agent has the characteristics of high cleanliness and no residue, and is suitable for nonferrous metal and ferrous metal at the same time, and does not corrode the nonferrous metal; the stability is good, and the service cycle is long; the cleanliness is high, special cleaning can be avoided after cleaning, and the direct spraying of the water paint has no influence; meanwhile, the antirust agent has antirust property, and other antirust processes are not needed among the processes. In the technical scheme, the surfactant is mainly alkyl glycoside, the component has abundant foam and is not easy to defoam, the problems of foam overflow, difficult rinsing and the like can be caused, and the fluorocarbon surfactant is added in the formula, so that the raw material cost is extremely high.
The following problems exist in the conventional industrial cleaning process at present:
1. in the industrial cleaning process, especially for animal and vegetable oil, the cleaning effect is greatly improved by properly adding the alkaline auxiliary agent, and the conventional surfactant is easy to precipitate or decompose under the condition of high alkali concentration so as to influence the cleaning effect;
2. after being washed, the conventional water-based metal cleaner is easy to cause oil stains to be attached to the surface of a metal product again, so that secondary pollution is caused;
3. the conventional water-based metal cleaning agent needs to be rinsed by a large amount of clear water after being cleaned, the cleaning process is long, and a large amount of wastewater can be generated.
Disclosure of Invention
The invention aims to provide a low-foam alkali-resistant water-based metal cleaner which has a good cleaning effect on various oil stains under low concentration and has the characteristics of low foam and easiness in rinsing.
The invention provides a low-foam alkali-resistant water-based metal cleaner which is prepared from the following raw materials in percentage by weight: 1-15 parts of anionic surfactant, 5-19 parts of nonionic surfactant, 1-3 parts of inorganic auxiliary agent, 0-1 part of acrylic acid-maleic acid polymer, 5-10 parts of organic solvent and 50-75 parts of water.
The raw materials are mixed and stirred uniformly to obtain the low-foaming alkali-resistant water-based metal cleaner.
The anionic surfactant is a compound obtained by mixing alkyl diphenyl ether sulfonate and fatty alcohol polyoxypropylene polyoxyethylene ether sulfate in any proportion;
further, the alkyl diphenyl oxide sulfonate as described above has a structural formula of:
R = C m H 2m+1 ，R′= C n H 2n+1 M = 8-18, n = 0 or 8-18, M may be Na, K or NH 4 R and R' may be the same or different.
The fatty alcohol polyoxyethylene polyoxypropylene ether sulfate has a simple structure formula as follows:
R = C z H 2z+1 z = 8-18, x =1-15, y =1-15, M may be Na, K or NH 4 。
The nonionic surfactant as described above is a capped alcohol ether; further, the structure of the capped alcohol ether is simply shown as follows:
R(OCH 2 CH 2 ) c OR′
R = C a H 2a+1 ，R′= C b H 2b+1 ，a =8-18，b=1-4，c=1-15。
the inorganic auxiliary agent is one or more of sodium carbonate, sodium metasilicate and sodium citrate, and when the inorganic auxiliary agent is selected, the inorganic auxiliary agent and the sodium metasilicate are mixed in any proportion;
the organic solvent is one or more of methanol, ethanol, isopropanol and propylene carbonate, and is mixed at any ratio when being selected.
According to the technical scheme, the capped alcohol ether product has extremely low foam and is quick to defoam, the fatty alcohol polyoxypropylene polyoxyethylene ether sulfate contains EO and PO groups at the same time, the foam is loose and easy to defoam, the problems of overflow of a cleaning agent, difficulty in rinsing and the like caused by large foam amount in the industrial cleaning process are solved from a raw material source by the compound system, no additional defoaming agent is required, and the resource waste is avoided. But the cleaning power of the end-capped alcohol ether and the fatty alcohol polyoxypropylene polyoxyethylene ether sulfate is not good enough, the alkyl diphenyl ether sulfonate only has a good cleaning effect on grease oil stains, and the good cleaning effect cannot be obtained when the end-capped alcohol ether, the fatty alcohol polyoxypropylene polyoxyethylene ether sulfate and the alkyl diphenyl ether sulfonate are used alone or are compounded with an inorganic auxiliary agent. The oil stain remover can effectively reduce the interfacial tension between oil and water and change the wetting angle after compounding the three components, thereby reducing the contact area between oil droplets and the metal surface, achieving the effect of stripping the oil stain on the metal surface, and visually showing that the oil stain remover has strong oil stain cleaning capability to the standard (GB/T35759-2017). Because the fatty alcohol polyoxypropylene polyoxyethylene ether sulfate contains a PO group, the alkyl diphenyl ether sulfonate has a multi-polar functional group, and the PO group and the alkyl diphenyl ether sulfonate are compounded and then mixed and adsorbed on the metal surface, and can form a mixed adsorption layer with polar substances originally adsorbed on the surface, so that the wetting of the metal surface is reversed to a neutral wetting surface, and the washed oil stain is not easy to stick back to the metal surface; and because the polar substances can not be completely desorbed from the metal surface, the change is reversible, so that the subsequent processing process of the metal is not influenced after cleaning.
The invention has the beneficial effects that:
(1) the cleaning agent provided by the invention has low foam, is easy to rinse, and has less wastewater discharge;
(2) the cleaning agent provided by the invention is alkali-resistant and can be used under the condition of high alkali concentration;
(3) the cleaning agent has a wetting reversal effect on the surface of the workpiece, and can effectively prevent the workpiece from being contaminated again by upper oil stains of the cleaning solution in the process of taking the cleaned workpiece out;
(4) the end capping alcohol ether has synergistic effect with alkyl diphenyl ether sulfonate and fatty alcohol polyoxyethylene polyoxypropylene ether sulfate, and the cleaning power can be obviously improved by compounding.
Detailed Description
The present invention is further illustrated by, but is not limited to, the following examples.
Example 1:
1 part of potassium dodecyl diphenyl ether disulfonate, 9 parts of octanol polyoxypropylene polyoxyethylene ether sodium sulfate, 10 parts of methyl-terminated fatty alcohol polyether, 1 part of sodium carbonate, 0.5 part of acrylic acid-maleic acid polymer (which can be directly purchased), 5 parts of ethanol and 73.5 parts of water, and the mixture is uniformly stirred to obtain the low-foaming alkali-resistant water-based metal cleaner, wherein the alkali resistance is 110 g/L; measuring the foam of the product by adopting a Roche foam meter, wherein the initial foam volume is 30mL, and the 5min foam volume is 5 mL; the cleaning agent cleaning force is determined to be 99.3% by referring to the method GB/T35759-2017, and the oil stain re-adhesion amount is 0.0005 g.
The alkali resistance testing method comprises the following steps: and observing the states of the 3% cleaning agent water solution under different NaOH concentrations, and taking the highest NaOH concentration of the clarified solution as the alkali resistance. The data in the examples below are all measured with reference to this method.
The evaluation method for preventing oil stain from being sticky back comprises the following steps: preparing 100mL of 3% cleaning agent aqueous solution, adding 1g of standard oil stain (GB/T35759-2017), heating to 60 ℃, stirring for 2min, placing a standard stainless steel test piece (GB/35759-2017) in the solution, rinsing with clear water for 30s after 3min of rinsing, taking out and drying, weighing the weight of the test piece before and after testing, and taking the mass difference of the test piece and the test piece as the oil stain re-adhesion amount, wherein the smaller the oil stain re-adhesion amount, the better the oil stain re-adhesion prevention effect is. The data in the examples below are all measured with reference to this method.
Example 2:
5 parts of dioctyl sodium diphenyl ether monosulfonate, 10 parts of octadecanol polyoxypropylene polyoxyethylene ether ammonium sulfate, 5 parts of butyl-terminated fatty alcohol polyether, 2 parts of sodium citrate, 1 part of acrylic acid-maleic acid polymer, 7 parts of isopropanol and 70 parts of water, uniformly stirring to obtain the low-foam alkali-resistant water-based metal cleaner, wherein the alkali resistance is 110g/L, the product foam is determined by adopting a Roche foam meter, the initial foam volume is 50mL, the 5min foam volume is 10mL, the detergency of the cleaner is determined to be 99.1% by referring to the GB/T35759 plus 2017 method, and the oil stain re-adhesion amount is 0.0007 g. .
Example 3:
0.5 part of ammonium dioctadecyl diphenyl ether disulfonate, 0.5 part of lauryl alcohol polyoxypropylene polyoxyethylene ether potassium sulfate, 19 parts of ethyl-terminated fatty alcohol polyether, 3 parts of sodium metasilicate, 1 part of acrylic acid-maleic acid polymer, 10 parts of methanol and 66 parts of water, and the low-foaming alkali-resistant water-based metal cleaning agent is obtained by uniformly stirring, wherein the alkali resistance is 110g/L, the product foam is measured by adopting a Roche foam tester, the initial foam volume is 30mL, the 5min foam volume is 5mL, the cleaning agent detergency is 99.9 percent by referring to the GB/T35759-.
Example 4:
7 parts of hexadecyl diphenyl ether sodium sulfonate, 5 parts of lauryl alcohol polyoxypropylene polyoxyethylene ether ammonium sulfate, 8 parts of methyl-terminated fatty alcohol polyether, 3 parts of sodium metasilicate, 5 parts of isopropanol, 5 parts of propylene carbonate and 67 parts of water, uniformly stirring to obtain the low-foam alkali-resistant water-based metal cleaner, wherein the alkali resistance is 120g/L, the foam of the product is determined by adopting a Roche foam meter, the initial foam volume is 50mL, the 5-min foam volume is 15mL, the detergency of the cleaner is 99.1 percent, and the oil stain re-adhesion amount is 0.0004g by referring to the GB/T35759 plus 2017 method.
Example 5:
10 parts of ammonium dodecyl diphenyl ether monosulfonate, 5 parts of lauryl alcohol polyoxypropylene polyoxyethylene ether sodium sulfate, 5 parts of methyl-terminated fatty alcohol polyether, 3 parts of sodium metasilicate, 1 part of acrylic acid-maleic acid polymer, 5 parts of propylene carbonate and 71 parts of water, and uniformly stirring to obtain the low-foam alkali-resistant water-based metal cleaner, wherein the alkali resistance is 130g/L, the initial foam volume is 70mL, the 5-min foam volume is 20mL, the detergency of the cleaner is 98.7% by referring to the GB/T35759 and 2017 method, and the oil stain viscosity-back is 0.0006 g.
Example 6:
5 parts of sodium dodecyl diphenyl ether monosulfonate, 1 part of tetradecanol polyoxypropylene polyoxyethylene ether sodium sulfate, 14 parts of ethyl-terminated fatty alcohol polyether, 3 parts of sodium metasilicate, 1 part of acrylic acid-maleic acid polymer, 5 parts of isopropanol and 71 parts of water, and uniformly stirring to obtain the low-foaming alkali-resistant water-based metal cleaner, wherein the alkali resistance is 110g/L, the initial foam volume is 50mL, the 5-min foam volume is 15mL, the detergency of the cleaner is 99.1% by referring to the GB/T35759 plus 2017 method, and the oil stain re-adhesion amount is 0.0002 g.
Example 7:
5 parts of didodecyl diphenyl ether monosulfonic acid sodium salt, 5 parts of isooctanol polyoxypropylene polyoxyethylene ether ammonium sulfate, 10 parts of methyl-terminated fatty alcohol polyether, 3 parts of sodium metasilicate, 1 part of acrylic acid-maleic acid polymer, 5 parts of propylene carbonate and 71 parts of water, and uniformly stirring to obtain the low-foam alkali-resistant water-based metal cleaner, wherein the alkali resistance is 120g/L, the initial foam volume is 70mL, the 5-min foam volume is 30mL, the detergency of the cleaner is 98.1% by referring to the GB/T35759 and 2017 method, and the oil stain re-adhesion amount is 0.0005 g.
Comparative example 1:
10 parts of didodecyl diphenyl ether monosulfonic sodium, 10 parts of lauryl alcohol polyoxypropylene polyoxyethylene ether ammonium sulfate, 3 parts of sodium metasilicate, 1 part of acrylic acid-maleic acid polymer, 5 parts of propylene carbonate and 71 parts of water, and uniformly stirring to obtain the low-foam alkali-resistant water-based metal cleaner, wherein the alkali resistance is 100g/L, the initial foam volume is 170mL, the 5min foam volume is 120mL, the detergency of the cleaner is 64.9% by referring to the GB/T35759-.
Comparative example 2:
20 parts of methyl-terminated fatty alcohol polyether, 3 parts of sodium metasilicate, 1 part of acrylic acid-maleic acid polymer, 3 parts of isopropanol and 73 parts of water, and uniformly stirring to obtain the low-foam alkali-resistant water-based metal cleaner, wherein the alkali resistance is 70g/L, the initial foam volume is 50mL, the 5min foam volume is 10mL, the cleaning force of the cleaner is 73.3 percent and the oil stain re-adhesion amount is 0.0114g according to the GB/T35759-2017 method.
Compared with the comparative example, the three surfactants provided by the invention have a synergistic effect after being compounded, and the surfactant has excellent performances in foam alkali resistance, cleaning power and oil stain adhesion prevention.
Claims (7)
1. A low-foam alkali-resistant water-based metal cleaner is characterized in that: the material is prepared from the following raw materials in percentage by weight: 1-15 parts of anionic surfactant, 5-19 parts of nonionic surfactant, 1-3 parts of inorganic auxiliary agent, 0-1 part of acrylic acid-maleic acid polymer, 5-10 parts of organic solvent and 50-75 parts of water;
mixing and stirring uniformly to obtain the low-foam alkali-resistant water-based metal cleaner.
2. The low-foaming alkali-resistant water-based metal cleaner as claimed in claim 1, wherein: the anionic surfactant is a compound obtained by mixing alkyl diphenyl ether sulfonate and fatty alcohol-polyoxypropylene polyoxyethylene ether sulfate.
3. The low-foaming alkali-resistant water-based metal cleaner as claimed in claim 2, wherein: the alkyl diphenyl ether sulfonate has a simple structure formula as follows:
R = C m H 2m+1 ，R′= C n H 2n+1 M = 8-18, n = 0 or 8-18, M may be Na, K or NH 4 R and R' may be the same or different;
the fatty alcohol polyoxypropylene polyoxyethylene ether sulfate has a simple structural formula as follows:
R = C z H 2z+1 z = 8-18, x =1-15, y =1-15, M may be Na, K or NH 4 。
4. The low-foaming alkali-resistant water-based metal cleaner as claimed in claim 1, wherein: the nonionic surfactant is a capped alcohol ether.
5. The low-foaming alkali-resistant water-based metal cleaner as claimed in claim 4, wherein: the structure of the end-capping alcohol ether is simply as follows:
R(OCH 2 CH 2 ) c OR′
R = C a H 2a+1 ，R′= C b H 2b+1 ，a =8-18，b=1-4，c=1-15。
6. the low-foaming alkali-resistant water-based metal cleaner as claimed in claim 1, wherein: the inorganic auxiliary agent is one or more of sodium carbonate, sodium metasilicate and sodium citrate.
7. The low-foaming alkali-resistant water-based metal cleaner as claimed in claim 1, wherein: the organic solvent is one or more of methanol, ethanol, isopropanol and propylene carbonate.
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| US4844744A (en) * | 1987-03-19 | 1989-07-04 | Henkel Kommanditgesellschaft Auf Aktien | Liquid, phosphate-free single phase degreasing compositions |
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