CN112029564B - Neutral water-based antirust agent - Google Patents
Neutral water-based antirust agent Download PDFInfo
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- CN112029564B CN112029564B CN202010945097.9A CN202010945097A CN112029564B CN 112029564 B CN112029564 B CN 112029564B CN 202010945097 A CN202010945097 A CN 202010945097A CN 112029564 B CN112029564 B CN 112029564B
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- acid
- rust preventive
- water
- oleylamine
- antirust agent
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- 239000013556 antirust agent Substances 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 230000007935 neutral effect Effects 0.000 title claims abstract description 31
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 53
- QDCPNGVVOWVKJG-VAWYXSNFSA-N 2-[(e)-dodec-1-enyl]butanedioic acid Chemical compound CCCCCCCCCC\C=C\C(C(O)=O)CC(O)=O QDCPNGVVOWVKJG-VAWYXSNFSA-N 0.000 claims abstract description 39
- -1 amine dodecenyl succinate salt Chemical class 0.000 claims abstract description 26
- 150000001412 amines Chemical class 0.000 claims abstract description 21
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 16
- QCIGHKFGWASDAN-UHFFFAOYSA-N azanium;2,3-di(nonyl)naphthalene-1-sulfonate Chemical compound [NH4+].C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1 QCIGHKFGWASDAN-UHFFFAOYSA-N 0.000 claims abstract description 13
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012964 benzotriazole Substances 0.000 claims abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 8
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 claims description 22
- 239000003112 inhibitor Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 10
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 8
- XBPCUCUWBYBCDP-UHFFFAOYSA-N Dicyclohexylamine Chemical compound C1CCCCC1NC1CCCCC1 XBPCUCUWBYBCDP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- CJMZLCRLBNZJQR-UHFFFAOYSA-N ethyl 2-amino-4-(4-fluorophenyl)thiophene-3-carboxylate Chemical compound CCOC(=O)C1=C(N)SC=C1C1=CC=C(F)C=C1 CJMZLCRLBNZJQR-UHFFFAOYSA-N 0.000 claims description 6
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 4
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 claims description 4
- DEEKPHRRJXTGIT-UHFFFAOYSA-N C1(CCCCC1)NC1CCCCC1.C(CCCCCCCC)C=1C(=C(C2=CC=CC=C2C1)S(=O)(=O)O)CCCCCCCCC Chemical group C1(CCCCC1)NC1CCCCC1.C(CCCCCCCC)C=1C(=C(C2=CC=CC=C2C1)S(=O)(=O)O)CCCCCCCCC DEEKPHRRJXTGIT-UHFFFAOYSA-N 0.000 claims description 4
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 claims description 4
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 claims description 4
- 229960005323 phenoxyethanol Drugs 0.000 claims description 4
- IBLKWZIFZMJLFL-UHFFFAOYSA-N 1-phenoxypropan-2-ol Chemical compound CC(O)COC1=CC=CC=C1 IBLKWZIFZMJLFL-UHFFFAOYSA-N 0.000 claims description 2
- ZUAURMBNZUCEAF-UHFFFAOYSA-N 2-(2-phenoxyethoxy)ethanol Chemical compound OCCOCCOC1=CC=CC=C1 ZUAURMBNZUCEAF-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims 1
- 230000003449 preventive effect Effects 0.000 abstract description 29
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 239000003995 emulsifying agent Substances 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- PONWUVCQQKBNHD-UHFFFAOYSA-N C(CCC(=O)[O-])(=O)OC=CCCCCCCCCCC.[NH4+] Chemical compound C(CCC(=O)[O-])(=O)OC=CCCCCCCCCCC.[NH4+] PONWUVCQQKBNHD-UHFFFAOYSA-N 0.000 abstract description 2
- DSVQEUKTSCUPIO-UHFFFAOYSA-N barium;2,3-di(nonyl)naphthalene-1-sulfonic acid Chemical compound [Ba].C1=CC=C2C(S(O)(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1 DSVQEUKTSCUPIO-UHFFFAOYSA-N 0.000 abstract 1
- MWASUSQNCAYWHI-UHFFFAOYSA-N calcium;2,3-di(nonyl)naphthalene-1-sulfonic acid Chemical compound [Ca].C1=CC=C2C(S(O)(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1 MWASUSQNCAYWHI-UHFFFAOYSA-N 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 21
- 150000003839 salts Chemical class 0.000 description 9
- 230000002265 prevention Effects 0.000 description 8
- 239000003921 oil Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- MKFUUBCXQNCPIP-UHFFFAOYSA-L calcium;2,3-di(nonyl)naphthalene-1-sulfonate Chemical compound [Ca+2].C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1.C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1 MKFUUBCXQNCPIP-UHFFFAOYSA-L 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 125000005066 dodecenyl group Chemical group C(=CCCCCCCCCCC)* 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- YSIQDTZQRDDQNF-UHFFFAOYSA-L barium(2+);2,3-di(nonyl)naphthalene-1-sulfonate Chemical compound [Ba+2].C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1.C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1 YSIQDTZQRDDQNF-UHFFFAOYSA-L 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 125000001117 oleyl 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])=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])[H] 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- OXHAAPPVZNNLGI-UHFFFAOYSA-N C1(=CC=CC2=CC=CC=C12)S(=O)(=O)O.C(CCCCCCCC)C1(CCC(CC1)NC1CCCCC1)CCCCCCCCC Chemical compound C1(=CC=CC2=CC=CC=C12)S(=O)(=O)O.C(CCCCCCCC)C1(CCC(CC1)NC1CCCCC1)CCCCCCCCC OXHAAPPVZNNLGI-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- NHJPVZLSLOHJDM-UHFFFAOYSA-N azane;butanedioic acid Chemical compound [NH4+].[NH4+].[O-]C(=O)CCC([O-])=O NHJPVZLSLOHJDM-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 235000019633 pungent taste Nutrition 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 229960005137 succinic acid Drugs 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/02—Water
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
- C10M2207/046—Hydroxy ethers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/127—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids polycarboxylic
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/044—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms having cycloaliphatic groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a neutral water-based antirust agent, which is prepared by mixing the following components in percentage by mass: 10-20% of amine dodecenyl succinate salt and/or ammonium dodecenyl succinate salt, 14-20% of ammonium dinonylnaphthalene sulfonate salt and/or ammonium dinonylnaphthalene sulfonate salt, 20-30% of alcohol ether solvent, 0.5-1% of benzotriazole and the balance of water. Compared with the existing rust preventive oil, the aqueous rust preventive has low preparation cost, can apply the existing dodecenylsuccinic acid and dinonylnaphthalenesulfonic acid barium or calcium dinonylnaphthalenesulfonic acid rust preventive oil system to the aqueous rust preventive, and can also overcome the problems that when the rust preventive oil system is applied to the aqueous rust preventive, free amine is high, and an emulsifier and the rust preventive are adsorbed on the surface of metal and easily absorb moisture in the air, so that the rust preventive effect is poor; in addition, compared with the existing water-based antirust agent, the water-based antirust agent is neutral, so that the water-based antirust agent is better in environmental protection and longer in antirust time.
Description
Technical Field
The invention relates to an antirust agent, in particular to a neutral water-based antirust agent.
Background
Dodecenylsuccinic acid and barium dinonylnaphthalene sulfonate or calcium dinonylnaphthalene sulfonate are generally added into the traditional rust-preventive oil to improve the salt mist performance of the rust-preventive oil. Since dodecenylsuccinic acid (T746) is an oil-soluble corrosion inhibitor, strong in acidity and poor in water solubility, it can only be used as a lubricating oil or rust preventive oil additive, and its use in aqueous rust preventive systems has limitations. When dodecenylsuccinic acid is used in an aqueous rust preventive liquid, its solubility in water can be improved only by reacting with different amines by utilizing its high acid value (acid value: 250mg KOH/g), but the addition of an alcohol amine to this system increases the content of free amines in the rust preventive, and the free amines are liable to volatilize, thereby not only increasing the pungent taste of the rust preventive, but also affecting the physical health of the operator. Barium dinonyl naphthalene sulfonate or calcium dinonyl naphthalene sulfonate is an oil-soluble antirust additive, when the antirust additive is applied to a water-based antirust agent, an emulsifier is required to be added for dissolution when the antirust additive is dissolved in water, and when the emulsifier and the antirust agent are adsorbed on the surface of metal, the emulsifier and the antirust agent are easy to adsorb moisture in the air, so that the antirust effect of the antirust agent is influenced. In addition, the existing water-based antirust agents are strong in alkalinity and short in antirust time, and the alkaline water-based antirust agents are not only not beneficial to environmental protection, but also not beneficial to the health of operators.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a neutral aqueous antirust agent, aiming at the problems that in the prior art, the aqueous antirust agent has high free amine content and the antirust effect is poor because an emulsifier and the antirust agent are adsorbed on the surface of metal and easily absorb moisture in the air.
The technical scheme is as follows: the neutral water-based antirust agent is prepared by mixing the following components in percentage by mass: 10-20% of amine dodecenyl succinate and/or ammonium dodecenyl succinate salt, 14-20% of ammonium dinonylnaphthalene sulfonate salt and/or ammonium dinonylnaphthalene sulfonate salt, 20-30% of alcohol ether solvent, 0.5-1% of benzotriazole and the balance of water.
Wherein the dodecenylsuccinic acid amine salt is dodecenylsuccinic acid dicyclohexylamine or dodecenylsuccinic acid oleylamine or a mixture of dodecenylsuccinic acid dicyclohexylamine and dodecenylsuccinic acid oleylamine.
Wherein the dodecenyl succinic acid amine salt is prepared by the following method: dodecenylsuccinic acid and fatty amine are mixed according to the mol ratio of 1: 1-1.05, the mixed materials are placed at the temperature of 90-110 ℃ for reaction for 3-4h, and dodecenylsuccinic acid amine salt is obtained after the reaction, wherein the acid value of the dodecenylsuccinic acid amine salt is less than 10mg KOH/g, and free amine is less than 10mg KOH/g. The lower the acid value, the more sufficient the reaction of dodecenylsuccinic acid was. The lower the free amine, the neutral solution after dissolution in water.
Wherein the aliphatic amine is dicyclohexylamine or oleylamine.
The dodecenyl ammonium succinate salt is obtained by neutralizing dodecenyl succinic acid and ammonia water, the acid value of the dodecenyl ammonium succinate salt is less than 10mg KOH/g, and free amine is less than 10mg KOH/g.
Wherein the dinonylnaphthalenesulfonic acid amine salt is dinonylnaphthalenesulfonic acid dicyclohexylamine or dinonylnaphthalenesulfonic acid oleylamine, or a mixture of dinonylnaphthalenesulfonic acid dicyclohexylamine and dinonylnaphthalenesulfonic acid oleylamine.
Wherein the alcohol ether solvent is one or the mixture of any two of ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, diethylene glycol monobutyl ether, diethylene glycol monophenyl ether, propylene glycol monomethyl ether or propylene glycol monophenyl ether.
Wherein the pH value of the antirust agent is 7.0-7.7.
The mechanism of good rust prevention effect of the water-based rust inhibitor is as follows: the aqueous antirust agent uses dinonyl naphthalene sulfonic acid amine salt and/or dinonyl naphthalene sulfonic acid ammonium salt and dodecenyl succinic acid amine salt and/or dodecenyl succinic acid ammonium salt for synergic antirust (aiming at salt mist and atmospheric corrosion), benzotriazole is used for electrochemical anticorrosion, the solubility of dinonyl naphthalene sulfonic acid amine salt in water is far greater than that of barium dinonyl sulfonate or calcium dinonyl naphthalene sulfonate, and the dinonyl naphthalene sulfonic acid amine salt can be dissolved into water by an alcohol ether solvent. The alcohol ether solvent has certain volatility, and when the water-based antirust agent (three antirust substances are deposited on the surface of a metal in a staggered mode and molecules of the three antirust substances are arranged in a staggered and compact mode) is adsorbed on the surface of the metal, a compact protective layer can be formed on the surface of the metal after moisture and the alcohol ether solvent are volatilized, so that a good antirust effect is achieved.
Has the beneficial effects that: compared with the existing rust preventive oil, the aqueous rust preventive disclosed by the invention is low in preparation cost, the existing dodecenylsuccinic acid and barium dinonylnaphthalenesulfonate or calcium dinonylnaphthalenesulfonate rust preventive oil system can be applied to the aqueous rust preventive (dodecenylsuccinic acid reacts with oil-soluble fatty amine, so that two oil-soluble substances can be well dissolved in water, free amine in the solution is reduced, and the problems that the free amine is high and an emulsifier and the rust preventive agent are adsorbed on the metal surface and easily absorb moisture in the air to cause poor rust preventive effect when the rust preventive oil system is applied to the aqueous rust preventive agent can be solved; in addition, compared with the existing aqueous antirust agent, the aqueous antirust agent is neutral (low in free amine and neutral), so that the aqueous antirust agent is better in environmental protection, less in stimulation to operators and longer in antirust time; the water-based antirust agent can be used as a long-term antirust agent alone, and can also be diluted by adding water for use according to the antirust time requirement.
Detailed Description
The technical solution of the present invention is further illustrated below with reference to specific examples.
The amine dinonylnaphthalenesulfonate salts and ammonium dinonylnaphthalenesulfonate salts used in the formulations of the present invention are commercially available.
Example 1
The neutral aqueous antirust agent is prepared by mixing the following components in parts by mass: 10kg of dodecenyl succinic acid ammonium salt, 10kg of dodecenyl succinic acid oleylamine, 10kg of dinonyl naphthalene sulfonic acid ammonium salt, 30kg of ethylene glycol monobutyl ether, 0.5kg of benzotriazole and 39.5kg of water.
The neutral aqueous antirust agent is prepared by the following method: fully stirring dodecenyl ammonium succinate, dodecenyl oleyl ammonium succinate, dinonyl naphthalene sulfonic acid ammonium salt and ethylene glycol monobutyl ether in a formula amount at normal temperature (the stirring time is more than 1h), then adding water in a formula amount, continuously stirring for more than 2h, finally adding benzotriazole in a formula amount, and stirring for 30min to obtain the neutral aqueous antirust agent with the pH value of 7.5.
The preparation method of dodecenyl succinic acid oleylamine comprises the following specific steps: 284g of dodecenyl succinic acid and 260g of oleylamine are mixed, stirring is started, heating is carried out to 100 ℃ while stirring, reaction is carried out for 4 hours, stirring is continuously carried out in the reaction process, dodecenyl succinic acid oleylamine is obtained, the acid value of the dodecenyl succinic acid oleylamine is 2mg KOH/g according to the detection of a GB/T4945 method, and the free amine is 5mg KOH/g according to the detection of a GB/T6365 method.
The neutral aqueous rust inhibitor stock solution of example 1 was taken for rust inhibition test:
And performing a salt spray test according to SH/T0081, wherein the rust prevention time is 48h and is 0 grade.
The damp-heat test is carried out according to GB/T2361, and the rust-proof time is 240h and 0 grade.
The commercially available Jiashiduo Rustilo 4175 has a pH of 9.1, a salt spray test of less than 12h, and a damp-heat test of less than 72 h.
From the above results, it is understood that the neutral aqueous rust inhibitor stock solution of example 1 has a performance equivalent to that of a commercial rust inhibitor oil, and is much higher than that of a commercial alkaline aqueous rust inhibitor.
50g of the neutral aqueous rust inhibitor of example 1 was dissolved in 50g of distilled water, and the resulting rust preventive liquid was subjected to a rust preventive test:
the salt spray test (continuous spraying) is carried out according to SH/T0081, and the rust prevention time is 24h and 0 grade.
The damp-heat test is carried out according to GB/T2361, and the rust-proof time is 168h, 0 grade.
The commercial Jiashiduo Rustilo 4175 has pH of 9.1, salt spray test of less than 12 hr, and damp heat test of less than 72 hr.
From the above results, it is found that the rust inhibitive performance of the rust inhibitive liquid is still far higher than that of the commercially available alkaline aqueous rust inhibitive agent.
Example 2
The neutral aqueous antirust agent is prepared by mixing the following components in parts by mass: 5kg of dodecenyl succinic acid ammonium salt, 5kg of dodecenyl succinic acid dicyclohexylamine, 20kg of dinonyl naphthalene sulfonic acid ammonium salt, 30kg of ethylene glycol monophenyl ether, 0.5kg of benzotriazole and 39.5kg of water.
The neutral aqueous antirust agent is prepared by adopting the following method: the dodecenyl ammonium succinate, the dodecenyl dicyclohexylamine succinate, the dinonyl naphthalenesulfonic acid ammonium salt and the ethylene glycol monophenyl ether are fully stirred at normal temperature (the stirring time is more than 1h), then the water with the formula amount is added, the stirring is continued for more than 2h, finally the benzotriazole with the formula amount is added, the stirring is carried out for 30min, and the pH value of the obtained neutral water-based antirust agent is 7.7.
The preparation method of the dodecenylsuccinic acid dicyclohexylamine specifically comprises the following steps: 284g of dodecenyl succinic acid and 180g of dicyclohexylamine are mixed, stirring is started, heating is carried out to 105 ℃ while stirring, reaction is carried out for 3 hours, stirring is continuously carried out in the reaction process, dodecenyl succinic acid dicyclohexylamine is obtained, the acid value of the dodecenyl succinic acid dicyclohexylamine is 5mg KOH/g when detection is carried out according to the GB/T4945 method, and the free amine is 2mg KOH/g when detection is carried out according to the GB/T6365 method.
50g of the neutral aqueous rust inhibitor of example 2 was dissolved in 50g of distilled water, and the resulting rust preventive liquid was subjected to a rust preventive test:
the salt spray test (continuous spraying) is carried out according to SH/T0081, and the rust prevention time is 36h and 0 grade.
The damp-heat test is carried out according to GB/T2361, and the rust-proof time is 168h, 0 grade.
Example 3
The neutral aqueous antirust agent is prepared by mixing the following components in parts by mass: 10kg of dodecenyl succinic acid oleylamine, 10kg of dodecenyl succinic acid dicyclohexylamine, 5kg of dinonyl naphthalenesulfonic acid ammonium salt, 20kg of ethylene glycol monobutyl ether, 10kg of diethylene glycol monobutyl ether, 0.5kg of benzotriazole and 39.5kg of water.
The neutral aqueous antirust agent is prepared by adopting the following method: fully stirring dodecenyl oleyl succinate, dodecenyl dicyclohexylamine succinate, dinonyl dicyclohexylamine naphthalene sulfonate, dinonyl naphthalene sulfonic acid ammonium salt, ethylene glycol monobutyl ether and diethylene glycol monobutyl ether according to the formula amount at normal temperature (the stirring time is more than 1h), then adding water according to the formula amount, continuously stirring for more than 2h, finally adding benzotriazole according to the formula amount, and stirring for 30min to obtain the neutral water-based antirust agent with the pH value of 7.3.
50g of the neutral aqueous rust inhibitor of example 3 was dissolved in 50g of distilled water, and the resulting rust preventive liquid was subjected to a rust preventive test:
the salt spray test (continuous spraying) is carried out according to SH/T0081, and the rust prevention time is 48h and 0 grade.
The damp-heat test is carried out according to GB/T2361, and the rust prevention time is 360h and 0 grade.
Example 4
The neutral aqueous antirust agent is prepared by mixing the following components in parts by mass: 8kg of dodecenyl succinic acid oleylamine, 8kg of dodecenyl succinic acid dicyclohexylamine, 7kg of dinonyl naphthalenesulfonic acid oleylamine, 20kg of ethylene glycol monobutyl ether, 10kg of propylene glycol monomethyl ether, 0.5kg of benzotriazole and 39.5kg of water.
The neutral aqueous antirust agent is prepared by adopting the following method: fully stirring dodecenyl butanedioic acid oleylamine, dodecenyl butanedioic acid dicyclohexylamine, dinonyl naphthalenesulfonic acid oleylamine, ethylene glycol monobutyl ether and propylene glycol monomethyl ether at normal temperature (the stirring time is more than 1h), then adding water with the formula amount, continuously stirring for more than 2h, finally adding benzotriazole with the formula amount, and stirring for 30min to obtain the neutral aqueous antirust agent with the pH value of 7.0.
50g of the neutral aqueous rust inhibitor of example 4 was dissolved in 50g of distilled water, and the resulting rust preventive liquid was subjected to a rust preventive test:
the salt spray test (continuous spraying) is carried out according to SH/T0081, and the rust prevention time is 45h and 0 grade.
The damp-heat test is carried out according to GB/T2361, and the rust prevention time is 336h and 0 grade.
The antirust performance differences of the examples 1-4 are that different dodecenyl succinic acid amine salt combinations and different dinonyl sulfonic acid amine salts are used in the formula, and the amine salts are subjected to different chain lengths of fatty amine and end group structures, so that the formed antirust films are different in compactness and hydrophobicity.
Claims (3)
1. A neutral aqueous rust inhibitor is characterized in that: the paint is prepared by mixing the following components in percentage by mass: 10-20% of amine dodecenylsuccinate, 14-20% of dinonylnaphthalene sulfonate amine salt and/or dinonylnaphthalene sulfonate ammonium salt, 20-30% of alcohol ether solvent, 0.5-1% of benzotriazole and the balance of water; the dodecenylsuccinic acid amine salt is dodecenylsuccinic acid dicyclohexylamine or dodecenylsuccinic acid oleylamine or the mixture of dodecenylsuccinic acid dicyclohexylamine and dodecenylsuccinic acid oleylamine; the dodecenyl succinic acid amine salt is prepared by the following method: mixing dodecenylsuccinic acid and fatty amine according to a molar ratio of 1: 1-1.05, wherein the fatty amine is dicyclohexylamine or oleylamine; placing the mixed materials at 90-110 ℃ for reaction for 3-4 h to obtain dodecenyl succinic acid dicyclohexylamine or dodecenyl succinic acid oleylamine; the acid value of the dodecenyl succinic acid dicyclohexylamine or dodecenyl succinic acid oleylamine is less than 5mg KOH/g, and the free amine is less than 2mg KOH/g; the pH value of the antirust agent is 7.0-7.7.
2. The neutral aqueous rust inhibitor according to claim 1, characterized in that: the dinonyl naphthalenesulfonic acid amine salt is dinonyl naphthalenesulfonic acid dicyclohexylamine or dinonyl naphthalenesulfonic acid oleylamine, or a mixture of the dinonyl naphthalenesulfonic acid dicyclohexylamine and the dinonyl naphthalenesulfonic acid oleylamine.
3. The neutral aqueous rust inhibitor according to claim 1, characterized in that: the alcohol ether solvent is one or the mixture of more than two of ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, diethylene glycol monobutyl ether, diethylene glycol monophenyl ether, propylene glycol monomethyl ether and propylene glycol monophenyl ether.
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