CN114892178A - Silicon-free phosphorus-free environment-friendly water-based degreasing agent and application thereof - Google Patents
Silicon-free phosphorus-free environment-friendly water-based degreasing agent and application thereof Download PDFInfo
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- CN114892178A CN114892178A CN202210518658.6A CN202210518658A CN114892178A CN 114892178 A CN114892178 A CN 114892178A CN 202210518658 A CN202210518658 A CN 202210518658A CN 114892178 A CN114892178 A CN 114892178A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000013527 degreasing agent Substances 0.000 title claims abstract description 57
- 238000005237 degreasing agent Methods 0.000 title claims abstract description 48
- 239000004094 surface-active agent Substances 0.000 claims abstract description 26
- 239000003513 alkali Substances 0.000 claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 13
- 238000005260 corrosion Methods 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 239000003112 inhibitor Substances 0.000 claims abstract description 11
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 10
- 229920000570 polyether Polymers 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims abstract description 10
- KCXFHTAICRTXLI-UHFFFAOYSA-N propane-1-sulfonic acid Chemical compound CCCS(O)(=O)=O KCXFHTAICRTXLI-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920000141 poly(maleic anhydride) Polymers 0.000 claims abstract description 5
- 229920001529 polyepoxysuccinic acid Polymers 0.000 claims abstract description 4
- 125000000129 anionic group Chemical group 0.000 claims abstract description 3
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 3
- 159000000000 sodium salts Chemical class 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims description 14
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 10
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 10
- -1 maleate potassium propane sulfonate Chemical compound 0.000 claims description 9
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 7
- 229920001983 poloxamer Polymers 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- BWDBEAQIHAEVLV-UHFFFAOYSA-N 6-methylheptan-1-ol Chemical compound CC(C)CCCCCO BWDBEAQIHAEVLV-UHFFFAOYSA-N 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 229960003237 betaine Drugs 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- VEHVJXQNSCCNSB-UHFFFAOYSA-N morpholin-4-ium;benzoate Chemical compound C1COCCN1.OC(=O)C1=CC=CC=C1 VEHVJXQNSCCNSB-UHFFFAOYSA-N 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- IXOCGRPBILEGOX-UHFFFAOYSA-N 3-[3-(dodecanoylamino)propyl-dimethylazaniumyl]-2-hydroxypropane-1-sulfonate Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC(O)CS([O-])(=O)=O IXOCGRPBILEGOX-UHFFFAOYSA-N 0.000 claims description 3
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 3
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 3
- 239000012964 benzotriazole Substances 0.000 claims description 3
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims 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 claims description 2
- DTPCFIHYWYONMD-UHFFFAOYSA-N decaethylene glycol Polymers OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO DTPCFIHYWYONMD-UHFFFAOYSA-N 0.000 claims description 2
- 150000002191 fatty alcohols Chemical class 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 230000003449 preventive effect Effects 0.000 claims description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 claims 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims 1
- 239000011976 maleic acid Substances 0.000 claims 1
- ZQUDHVGNIZTEDK-UHFFFAOYSA-M potassium;propane-1-sulfonate Chemical compound [K+].CCCS([O-])(=O)=O ZQUDHVGNIZTEDK-UHFFFAOYSA-M 0.000 claims 1
- NPAWNPCNZAPTKA-UHFFFAOYSA-M sodium;propane-1-sulfonate Chemical compound [Na+].CCCS([O-])(=O)=O NPAWNPCNZAPTKA-UHFFFAOYSA-M 0.000 claims 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 41
- 238000005238 degreasing Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 13
- 238000004140 cleaning Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011574 phosphorus Substances 0.000 abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 5
- 238000004381 surface treatment Methods 0.000 abstract description 5
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002480 mineral oil Substances 0.000 abstract description 3
- 235000010446 mineral oil Nutrition 0.000 abstract description 3
- 239000008233 hard water Substances 0.000 abstract description 2
- 238000004065 wastewater treatment Methods 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 description 39
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 36
- 239000006260 foam Substances 0.000 description 18
- 239000000243 solution Substances 0.000 description 13
- 235000011121 sodium hydroxide Nutrition 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 10
- 239000000843 powder Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- 239000004115 Sodium Silicate Substances 0.000 description 8
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 8
- 229910052911 sodium silicate Inorganic materials 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 239000012085 test solution Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000004945 emulsification Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000693 micelle Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- VHSHLMUCYSAUQU-UHFFFAOYSA-N 2-hydroxypropyl methacrylate Chemical compound CC(O)COC(=O)C(C)=C VHSHLMUCYSAUQU-UHFFFAOYSA-N 0.000 description 2
- ZMYKITJYWFYRFJ-UHFFFAOYSA-N 4-oxo-4-(2-phenylethylamino)butanoic acid Chemical compound OC(=O)CCC(=O)NCCC1=CC=CC=C1 ZMYKITJYWFYRFJ-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- 238000005063 solubilization Methods 0.000 description 2
- 230000007928 solubilization Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- KEZYHIPQRGTUDU-UHFFFAOYSA-N 2-[dithiocarboxy(methyl)amino]acetic acid Chemical compound SC(=S)N(C)CC(O)=O KEZYHIPQRGTUDU-UHFFFAOYSA-N 0.000 description 1
- LYOFHYLVYHTGBK-UHFFFAOYSA-N 4-chloro-1,5-dimethylcyclohexa-2,4-dien-1-ol Chemical compound CC1=C(Cl)C=CC(C)(O)C1 LYOFHYLVYHTGBK-UHFFFAOYSA-N 0.000 description 1
- 102100035606 Beta-casein Human genes 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 101000947120 Homo sapiens Beta-casein Proteins 0.000 description 1
- 229920000805 Polyaspartic acid Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- YPKOTWSAVCIFAM-UHFFFAOYSA-N [Na].CCC Chemical compound [Na].CCC YPKOTWSAVCIFAM-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 150000007514 bases Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000002563 ionic surfactant Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 150000003017 phosphorus Chemical class 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 108010064470 polyaspartate Proteins 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- WQKGAJDYBZOFSR-UHFFFAOYSA-N potassium;propan-2-olate Chemical compound [K+].CC(C)[O-] WQKGAJDYBZOFSR-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229940074404 sodium succinate Drugs 0.000 description 1
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010998 test method Methods 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
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Images
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
- C23G1/16—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions using inhibitors
- C23G1/18—Organic inhibitors
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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to a silicon-free phosphorus-free environment-friendly water-based degreaser and application thereof, wherein the silicon-free phosphorus-free environment-friendly water-based degreaser comprises the following components in percentage by weight based on 100 wt% of the total weight of the silicon-free phosphorus-free environment-friendly water-based degreaser: 15.0-20.0 wt% of alkaline compound, 20.0-41 wt% of surfactant, 1.0-7.0 wt% of dispersant, 8.0-10.0 wt% of alkali-resistant solubilizer, 3.3-9.0 wt% of corrosion inhibitor and the balance of water, wherein the surfactant comprises 12-30 wt% of anionic propane sulfonate, 8-12 wt% of polyether surfactant, the dispersant comprises 0.5-2.0 wt% of hydrolytic polymaleic anhydride and 0.5-5.0 wt% of polyepoxysuccinic acid sodium salt. The silicon-free phosphorus-free environment-friendly water-based degreasing agent does not contain phosphorus and silicate, is hard water-resistant, has a good cleaning effect on mixed oil dirt of mineral oil and drawing oil, is easy to rinse, has a long service life, is environment-friendly, is simple in wastewater treatment, and is particularly suitable for a pretreatment degreasing process of standard parts and fastener surface treatment.
Description
Technical Field
The invention belongs to the field of metal corrosion protection and surface treatment, and particularly relates to a silicon-free phosphorus-free environment-friendly water-based degreasing agent and application thereof.
Background
Before the standard part and the fastener leave a factory, a layer of anti-rust oil is coated on the surface, the anti-rust oil is rich and miscellaneous in components, including vegetable oil, animal oil, mineral oil and even solid wax, part of oil stains form a dried wax-like surface layer with strong adhesive force due to long coating time, and if the oil stains on the surface of steel cannot be cleaned, great troubles are brought to subsequent surface treatment. The conventional oil removal agent cannot meet the cleaning requirement, and flake caustic soda is required to be used for saponification and emulsification under the condition of heating, but the conventional surfactant, especially the nonionic surfactant has the cloud point problem, and once the temperature is too high or the electrolyte concentration is too high, the problem of surfactant precipitation occurs, and the appearance is turbid; the maximum alkali resistance of a common oil removing agent at 40-70 ℃ is not more than 30g/L, so that the application of the oil removing agent under the condition of high alkali concentration is greatly limited, and the oil removing agent cannot be applied to the oil removing process of the mixed oil stain.
Phosphate, silicate or a silicon defoaming agent is generally added into a formula of conventional oil removing agent or oil removing powder, the phosphate has relatively excellent chelating capacity and washing assisting effect, and can soften hard water and increase infiltration and emulsification capacity, wherein sodium tripolyphosphate generates multi-charge micelles with micelle structures after hydrolysis and can adsorb dirt such as mineral oil and fat, but phosphorus-containing wastewater can increase nutrient substances in natural water body, so that the water body is in a eutrophication state. The eutrophic water body is difficult to self-purify and recover to a natural state even if the source of external nutrient substances is cut off, thereby causing great environmental pollution.
The silicate is mainly sodium silicate, and sodium silicate is alkaline after being dissolved in water, has certain effect on the saponification reaction of the degreasing process, and simultaneously, the sodium silicate can form a silicon oxide film on the metal surface, so that the metal surface is passivated, and the corrosion is prevented. However, after the degreasing, the silicon oxide film formed on the surface and the residual sodium silicate become the toggle of the subsequent surface treatment process, which directly affects the painting and electroplating quality, and the residual sodium silicate reacts with acid in the subsequent process to form silica gel which adheres to the surface of the workpiece, thereby bringing great troubles to the subsequent process. The only effective treatment method is that the sodium silicate is firstly washed by hot water during the subsequent water washing, and a large amount of clear water is used for cleaning the surface formed film. This treatment, while effective, comes at the cost of large water consumption, especially in northern areas, which is uneconomical and environmentally unfriendly.
CN109234747A discloses an oil removing agent for metal surfaces, which uses a composite surfactant, sodium metasilicate pentahydrate, sodium carbonate, a builder, p-chloro-m-dimethylphenol and water; the invention is an aqueous degreasing agent, has high degreasing speed, easy and clean flushing of residues after degreasing, no residue, environment-friendly components, simple proportioning, wide raw material sources and lower production cost, but can not meet the special requirements of no silicon and no phosphorus by adopting phosphorus salt and silicate. CN107313060A discloses an aluminum-zinc-plated steel plate degreasing agent, which comprises sodium carbonate, caustic soda flakes, an anionic surfactant, a defoaming agent, polyaspartic acid, polyacrylic acid, a phosphate complexing agent and water.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a water-based degreasing agent which is silicon-free and phosphorus-free and can be suitable for a pretreatment degreasing process of surface treatment of standard parts and fasteners.
The technical scheme provided by the invention is as follows:
the invention provides a silicon-free phosphorus-free environment-friendly water-based degreasing agent, which comprises the following components in percentage by weight based on 100 wt% of the total weight of the silicon-free phosphorus-free environment-friendly water-based degreasing agent: 15.0-20.0 wt% of alkaline compound, 20.0-41 wt% of surfactant, 1.0-7.0 wt% of dispersant, 8.0-10.0 wt% of alkali-resistant solubilizer, 3.3-9.0 wt% of corrosion inhibitor and the balance of water, wherein the surfactant comprises 12-30 wt% of anionic propane sulfonate, 8-12 wt% of polyether surfactant, the dispersant comprises 0.5-2.0 wt% of hydrolytic polymaleic anhydride and 0.5-5.0 wt% of polyepoxysuccinic acid sodium salt.
In some embodiments of the present invention, the silicon-free and phosphorus-free environment-friendly water-based degreasing agent comprises, based on 100 wt% of the total weight of the silicon-free and phosphorus-free environment-friendly water-based degreasing agent: 16 to 20.0 weight percent of alkaline compound, 24 to 32 weight percent of surfactant, 5.0 to 6.6 weight percent of dispersant, 8.0 to 10.0 weight percent of alkali-resistant solubilizer, 5 to 7.5 weight percent of corrosion inhibitor and the balance of water.
In some embodiments of the present invention, the silicon-free and phosphorus-free environment-friendly water-based degreasing agent comprises, based on 100 wt% of the total weight of the silicon-free and phosphorus-free environment-friendly water-based degreasing agent: the silicon-free phosphorus-free environment-friendly water-based degreasing agent comprises the following components in percentage by weight of 100 percent: 18.0 wt% of alkaline compound, 24.0 wt% of surfactant, 5.6 wt% of dispersant, 9.0 wt% of alkali-resistant solubilizer, 5.0 wt% of corrosion inhibitor and the balance of water.
In some embodiments of the present invention, the surfactant comprises 8.0 wt% to 11.5 wt% of polyoxyethylene nonyl phenyl ether (10), 8.0 wt% to 11.5 wt% of sodium fatty alcohol polyoxyethylene ether (8) propane sulfonate, 2.0 wt% to 5.0 wt% of potassium isooctanol polyoxyethylene ether maleate propane sulfonate, 2.0 wt% to 5.0 wt% of block polyether Pluronic PE64000.05wt% to 0.2 wt% and 2.0 wt% to 12.0 wt% of cocamidopropyl hydroxysultaine, based on the total weight of the silicon-free and phosphorus-free environment-friendly water-based degreasing agent taken as 100 wt%. The surfactant is more than needed, except for nonylphenol polyoxyethylene (10) ether and polyether defoamer block polyether Pluronic PE6400, the surfactant is an ionic surfactant with better alkali resistance, and is a low-foaming surfactant.
In some embodiments of the invention, the basic compound is one or both of potassium carbonate and sodium carbonate; the solid content of the cocamidopropyl hydroxysulfonic betaine is more than or equal to 50 percent.
In some embodiments of the invention, the corrosion inhibitor is composed of hostacor6923.0 wt% -8.0 wt%, benzotriazole 0.2 wt% -0.4 wt% and morpholine benzoate (1:1)0.1 wt% -0.6 wt%, based on the total weight of the silicon-free phosphorus-free environment-friendly water-based degreasing agent being 100 wt%.
Further, the structure of the sodium fatty alcohol polyoxyethylene ether (8) propane sulfonate in the surfactant provided by the invention is as follows:
further, the isooctanol polyoxyethylene ether maleate potassium propanesulfonate in the surfactant has the following structural formula:
furthermore, the solid content of the polyepoxy sodium succinate in the dispersant is 40%, the relative molecular mass is 800-1700, and the structural formula is as follows:
further, the solid content of the hydrolyzed polymaleic anhydride is 50%, the relative molecular mass is 400-800, and the structural formula is as follows:
further, the alkali-resistant solubilizer is preferably an alkali-resistant solubilizer with the model number of AmphalakYJH-40, CAS No.52663-87-3, the solid content is more than or equal to 40%, and the structural formula is as follows:
furthermore, the corrosion inhibitor is Hostacor692, the main component of the corrosion inhibitor is boric acid monoethanolamine ester, the solid content is more than or equal to 80 percent, and the structural formula is as follows:
the invention also provides application of the silicon-free phosphorus-free environment-friendly water-based degreasing agent in removing rust preventive oil on the surfaces of parts.
Compared with the traditional water-based degreasing agent, the invention has the following advantages and beneficial effects:
1. the silicon-free phosphorus-free environment-friendly water-based degreasing agent provided by the invention does not contain silicon, phosphorus and organic solvent, and is environment-friendly; the oil removing effect is good, oil stains in threads and holes can be stripped and cleaned, the oil removing effect can be better when the temperature is higher and can be used within the range from normal temperature to 90 ℃, the optimal temperature range is 40-70 ℃, and high-concentration alkali liquor can be resisted at the temperature; because sodium silicate is not added and the raw materials are basically ionic substances, the silicon-free phosphorus-free environment-friendly water-based degreasing agent provided by the invention is easy to rinse and saves more water; and because phosphorus is not contained, the wastewater is easier to treat, and electroplating can be directly carried out after rinsing and acid washing after oil removal without superheated water or a large amount of cleaning and washing;
2. after sodium carbonate and sodium hydroxide are added in the prior art, the operation can be carried out only under the condition of not additionally adding alkali, once the alkali concentration is too high, surface active micelle depolymerization is caused, and the decontamination and solubilization effects of surface activity are influenced.
3. The block polyether Pluronic PE6400 has a larger epoxypropane hydrophobic group, foam is broken down by reducing local surface tension of the foam, a low-foaming alkali-resistant solubilizer and boric acid monoethanolamine ester can diffuse to a gas-liquid interface, so that a surfactant with a foam stabilizing effect is difficult to generate the capability of restoring membrane elasticity to defoam, and under the superposition effect of all components, the block polyether Pluronic PE6400 only generates a small amount of fisheye-shaped foam in the oil removing process, can be quickly dissipated, and cannot generate the phenomenon of foam escape.
Drawings
Fig. 1 shows the alkali resistance of the silicon-free phosphorus-free environment-friendly water-based degreaser provided by the embodiment 1 of the invention compared with that of an externally purchased degreaser.
FIG. 2 shows the foams of different oil removers; wherein, 1 is degreasing powder solution, 2 is water-based degreasing agent sold in market, and 3 is silicon-free phosphorus-free environment-friendly water-based degreasing agent prepared in example 1.
Figure 3 shows the foam height and foam dissipation rate for different foam test solutions.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Unless otherwise specified, the following examples and comparative examples employ the following raw material information: the nonyl phenol polyoxyethylene ether (10) has the code number NP-10, and is a product of Jilinruiji special chemical products, Inc.; the block polyether Pluronic PE6400 is a product of Germany BASF company, the product model of cocamidopropyl hydroxysulfonic acid betaine (CAS No.68139-30-0) is AM-CASB, the product model of Shandong Ammi chemical technology Co., Ltd is AM-CASB, hydrolyzed polymaleic anhydride (code HPMA, CAS No.26099-09-02) and sodium polyepoxysuccinate (code PESA, CAS No.51274-37-4) are products of Shandong Tai and Water treatment technology Co., Ltd, AmphoakYJH-40 is a product of Aksu Sunobel surface chemistry (Boxing) Co., Ltd, Hostacor692(CAS No.10377-81-8) is a product of Kelain chemical industry (China) Co., Ltd, morpholine benzoate (1:1) (CAS No. 21-56-7), fatty alcohol polyoxyethylene ether (8) propane sodium sulfonate (solid content 65%) is RB and potassium isopropoxide sulfonate (JMP content: 75%) is RB, are all made by self.
The base formulations of the commercially available oil-removing powders used in the following examples are shown in Table 1, unless otherwise specified:
TABLE 1 commercial oil-removing powder base formulation
| Sodium carbonate/wt% | 20 |
| Sodium tripolyphosphate/wt% | 12 |
| Trisodium phosphate/wt.% | 15 |
| Sodium silicate/wt% | 17 |
| OP-10/wt％ | 10 |
| TX-10/wt％ | 10 |
| Betaine/wt% | 6 |
| Anhydrous sodium sulphate/wt% | 10 |
Examples 1 to 3
Table 2 examples 1 to 3 raw material amounts (kg) of compounding silicon-free phosphorus-free environment-friendly water-based degreasing agent
According to the raw material dosage shown in table 2, the silicon-free phosphorus-free environment-friendly water-based degreasing agent is prepared according to the following method:
adding NP-10, RB, JMP, PE6400 and CASB into a stirring kettle, adding 10.0kg of water, heating to 45 ℃, stirring to obtain uniform viscous liquid, sequentially adding HPMA, PESA and AmphalakYJH-40, stirring uniformly to obtain solution A, and cooling to room temperature for later use;
and adding an alkaline compound into the other preparation kettle, adding water with the same mass as the alkaline compound, stirring until the alkaline compound is completely dissolved, slowly pouring benzotriazole into the potassium carbonate solution, slowly stirring until the alkaline compound is completely dissolved, adding morpholine benzoate and Hostacor692, and stirring until the solid is completely dissolved to obtain liquid B.
And adding the solution B into the solution A, stirring for 1 hour at room temperature, adding the rest water, adjusting the weight of the product to be 100.0kg, discharging and filling to obtain the silicon-free phosphorus-free environment-friendly water-based degreasing agent.
Example 2: test for oil removal rate
The oil removal rate detection test method is carried out by adopting a difference method and comprises the following test steps:
1. the weight of a standard sample (Hexagon socket head screw M16X 80) retrieved from a standard company in the North is accurately weighed and recorded as M 1 ；
2. The oil removing operation is carried out on the workpiece according to the following steps:
(1) firstly, adding 50% of water with specified amount into an oil removing groove;
(2) adding a defined amount of 5-10% of degreasing agent and caustic soda flakes into the degreasing tank, and stirring and dissolving the caustic soda flakes to obtain 10-20 g/L caustic soda flakes;
(3) supplementing water into the oil removing groove to a specified amount, and simultaneously heating the oil removing groove to a process temperature according to the oil stain condition;
(4) and (3) performing oil removal operation, and supplementing an oil removal agent or caustic soda flakes according to the cleaning time and the weight of oil stains according to the consumption of the oil removal agent of 80-200 square meters per liter.
The specific process parameters are shown in table 3:
TABLE 3
| Flake caustic soda/(g/L) | 15 |
| Water-based degreaser/wt% | 8 |
| Operating temperature/. degree.C | 60 |
| Operating time/min | 10 |
| Stirring mode | Air agitation |
3. Fishing out the workpiece after oil removal, rinsing the workpiece, then placing the workpiece in an oven to dry the workpiece for 2 hours at 95 ℃, taking out the workpiece and weighing the workpiece, and recording the weight as m 2 ；
4. Completely cleaning the dried workpiece with acetone and dichloromethane, then completely cleaning with anhydrous ethanol, drying after cleaning, weighing again, and recording as m 0 ；
5. According to the formula
The oil removal rate η was calculated and the test results are shown in table 4:
TABLE 4
According to the test phenomenon and the test result, the solid oil removing powder 50% solution is milky white at 60 ℃, the oil removing efficiency is poor, and is only about 67%; the oil removal efficiency of the commercially available water-based oil removal agent is only about 80%, and the oil removal rate of the silicon-free phosphorus-free environment-friendly water-based oil removal agent prepared in the embodiments 1-3 of the invention can reach more than 90%.
Example 3: alkali resistance test
A degreasing agent corresponding to 5 wt% of the sodium hydroxide solution was added to the sodium hydroxide solution having a concentration of 100g/L, and the mixture was observed at 40 ℃. Figure 1 shows the difference between the silicone-free and phosphorus-free environmentally-friendly water-based degreaser formulated in example 1 and the off-market degreaser: under the same alkalinity condition, the silicon-free phosphorus-free environment-friendly water-based degreasing agent prepared in example 1 can keep a sodium hydroxide solution clear, and the sodium hydroxide solution is very turbid when a degreasing agent is purchased, wherein the turbidity phenomenon shows that hydrogen bonds formed by the surfactant and water are broken and separated out from the solution, and the corresponding functions of the surfactant, such as emulsification, solubilization and the like, are lost.
Example 4: degreaser foam height and dissipation test:
preparing commercially available solid degreasing powder into a degreasing powder solution with the solid content of 50 wt%, then preparing 0.1g of the degreasing powder solution, the silicon-free phosphorus-free environment-friendly water-based degreasing agent prepared in the embodiments 1-3 and the commercially available water-based degreasing agent into a foam test solution with the concentration of 0.1 wt%, placing the foam test solution in a 50mL measuring cylinder, vibrating the foam test solution up and down for 10s, standing the foam test solution at room temperature for 15 minutes, and observing the foam height and the dissipation speed of the foam, wherein the observation result is shown in fig. 2, and the dissipation speed of the foam is shown in fig. 3. The results show that the foaming amount of the silicon-free phosphorus-free environment-friendly water-based degreasing agent prepared in the embodiments 1 to 3 is far lower than that of the commercially available solid degreasing powder and the commercially available water-based degreasing agent, the foam dissipation speed is high, the cleaning is easy after degreasing, and the water consumption is low.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A silicon-free phosphorus-free environment-friendly water-based degreasing agent is characterized in that: the silicon-free phosphorus-free environment-friendly water-based degreasing agent comprises the following components in percentage by weight of 100 percent: 15.0-20.0 wt% of alkaline compound, 20.0-41 wt% of surfactant, 1.0-7.0 wt% of dispersant, 8.0-10.0 wt% of alkali-resistant solubilizer, 3.3-9.0 wt% of corrosion inhibitor and the balance of water, wherein the surfactant comprises 12-30 wt% of anionic propane sulfonate, 8-12 wt% of polyether surfactant, the dispersant comprises 0.5-2.0 wt% of hydrolytic polymaleic anhydride and 0.5-5.0 wt% of polyepoxysuccinic acid sodium salt.
2. The silicon-free phosphorus-free environment-friendly water-based degreasing agent as claimed in claim 1, wherein: the silicon-free phosphorus-free environment-friendly water-based degreasing agent comprises the following components in percentage by weight of 100 percent: 16 to 20.0 weight percent of alkaline compound, 24 to 32 weight percent of surfactant, 5.0 to 6.6 weight percent of dispersant, 8.0 to 10.0 weight percent of alkali-resistant solubilizer, 5 to 7.5 weight percent of corrosion inhibitor and the balance of water.
3. The silicon-free phosphorus-free environment-friendly water-based degreasing agent as claimed in claim 2, wherein: the silicon-free phosphorus-free environment-friendly water-based degreasing agent comprises the following components in percentage by weight of 100 percent: 18.0 wt% of alkaline compound, 24.0 wt% of surfactant, 5.6 wt% of dispersant, 9.0 wt% of alkali-resistant solubilizer, 5.0 wt% of corrosion inhibitor and the balance of water.
4. The silicon-free phosphorus-free environment-friendly water-based degreasing agent as claimed in claim 1, wherein: the surfactant comprises 8.0-11.5 wt% of nonylphenol polyoxyethylene (10) -containing ether, 8.0-11.5 wt% of fatty alcohol polyoxyethylene ether (8) sodium propane sulfonate, 2.0-5.0 wt% of isooctanol polyoxyethylene ether maleate potassium propane sulfonate, 2.0-5.0 wt% of block polyether Pluronic PE64000.05wt% to 0.2 wt% and 2.0-12.0 wt% of cocamidopropyl hydroxysultaine, wherein the total weight of the silicon-free and phosphorus-free environment-friendly water-based degreasing agent is 100 wt%.
5. The silicon-free phosphorus-free environment-friendly water-based degreasing agent as claimed in claim 4, wherein: the isooctanol polyoxyethylene ether maleic acid ester potassium propanesulfonate has a structural formula as follows:
6. the silicon-free phosphorus-free environment-friendly water-based degreasing agent as claimed in claim 4, wherein: the structural formula of the sodium fatty alcohol polyoxyethylene ether (8) propane sulfonate is as follows:
7. the silicon-free phosphorus-free environment-friendly water-based degreasing agent as claimed in claim 1, wherein: the solid content of the polyepoxysuccinic acid sodium is 40%, the relative molecular mass is 800-1700, and the structural formula is as follows:
8. the silicon-free phosphorus-free environment-friendly water-based degreasing agent as claimed in claim 1, wherein: the alkaline compound is one or two of potassium carbonate and sodium carbonate; the solid content of the cocamidopropyl hydroxysulfonic betaine is more than or equal to 50 percent.
9. The silicon-free phosphorus-free environment-friendly water-based degreasing agent as claimed in claim 1, wherein: the corrosion inhibitor is composed of Hostacor 6923.0-8.0 wt%, benzotriazole 0.2-0.4 wt% and morpholine benzoate 0.1-0.6 wt%, based on the total weight of the silicon-free and phosphorus-free environment-friendly water-based degreasing agent being 100 wt%.
10. The application of the silicon-free phosphorus-free environment-friendly water-based degreasing agent as defined in any one of claims 1-9 in removing rust preventive oil on the surfaces of parts.
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