CN117511639B - Composite lubricating oil and preparation method thereof - Google Patents
Composite lubricating oil and preparation method thereof Download PDFInfo
- Publication number
- CN117511639B CN117511639B CN202410011858.1A CN202410011858A CN117511639B CN 117511639 B CN117511639 B CN 117511639B CN 202410011858 A CN202410011858 A CN 202410011858A CN 117511639 B CN117511639 B CN 117511639B
- Authority
- CN
- China
- Prior art keywords
- lubricating oil
- parts
- stirring
- rust
- base oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 56
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 30
- 239000002199 base oil Substances 0.000 claims abstract description 25
- YZPNFYQRPJKWFJ-UHFFFAOYSA-N 2-methyl-1h-imidazol-1-ium;chloride Chemical compound Cl.CC1=NC=CN1 YZPNFYQRPJKWFJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 125000001624 naphthyl group Chemical group 0.000 claims abstract description 22
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000003599 detergent Substances 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- 239000013530 defoamer Substances 0.000 claims abstract description 4
- 239000003112 inhibitor Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 50
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 21
- 150000001875 compounds Chemical class 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 16
- 239000013556 antirust agent Substances 0.000 claims description 15
- -1 amine thiophosphate salt Chemical class 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- XMWGTKZEDLCVIG-UHFFFAOYSA-N 1-(chloromethyl)naphthalene Chemical compound C1=CC=C2C(CCl)=CC=CC2=C1 XMWGTKZEDLCVIG-UHFFFAOYSA-N 0.000 claims description 10
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 claims description 10
- NRZRRZAVMCAKEP-UHFFFAOYSA-N naphthionic acid Chemical compound C1=CC=C2C(N)=CC=C(S(O)(=O)=O)C2=C1 NRZRRZAVMCAKEP-UHFFFAOYSA-N 0.000 claims description 10
- 229920000193 polymethacrylate Polymers 0.000 claims description 10
- IYFATESGLOUGBX-YVNJGZBMSA-N Sorbitan monopalmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O IYFATESGLOUGBX-YVNJGZBMSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- RQVGZVZFVNMBGS-UHFFFAOYSA-N n-octyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(CCCCCCCC)C1=CC=CC=C1 RQVGZVZFVNMBGS-UHFFFAOYSA-N 0.000 claims description 9
- 239000001570 sorbitan monopalmitate Substances 0.000 claims description 9
- 229940031953 sorbitan monopalmitate Drugs 0.000 claims description 9
- 235000011071 sorbitan monopalmitate Nutrition 0.000 claims description 9
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims description 8
- 229920002367 Polyisobutene Polymers 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 claims description 4
- 239000002518 antifoaming agent Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- 229960002317 succinimide Drugs 0.000 claims description 4
- 239000003607 modifier Substances 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 claims description 2
- HRKAMJBPFPHCSD-UHFFFAOYSA-N Tri-isobutylphosphate Chemical compound CC(C)COP(=O)(OCC(C)C)OCC(C)C HRKAMJBPFPHCSD-UHFFFAOYSA-N 0.000 claims description 2
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 2
- 229910021538 borax Inorganic materials 0.000 claims description 2
- SZRLKIKBPASKQH-UHFFFAOYSA-M dibutyldithiocarbamate Chemical compound CCCCN(C([S-])=S)CCCC SZRLKIKBPASKQH-UHFFFAOYSA-M 0.000 claims description 2
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- XUMOVISJJBHALN-UHFFFAOYSA-N n-butyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCC)C1=CC=CC=C1 XUMOVISJJBHALN-UHFFFAOYSA-N 0.000 claims description 2
- LVZUNTGFCXNQAF-UHFFFAOYSA-N n-nonyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(CCCCCCCCC)C1=CC=CC=C1 LVZUNTGFCXNQAF-UHFFFAOYSA-N 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- JVUYWILPYBCNNG-UHFFFAOYSA-N potassium;oxido(oxo)borane Chemical compound [K+].[O-]B=O JVUYWILPYBCNNG-UHFFFAOYSA-N 0.000 claims description 2
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 2
- 239000004328 sodium tetraborate Substances 0.000 claims description 2
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 2
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical group CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims 2
- YQEMORVAKMFKLG-UHFFFAOYSA-N glycerine monostearate Natural products CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO YQEMORVAKMFKLG-UHFFFAOYSA-N 0.000 claims 1
- SVUQHVRAGMNPLW-UHFFFAOYSA-N glycerol monostearate Natural products CCCCCCCCCCCCCCCCC(=O)OCC(O)CO SVUQHVRAGMNPLW-UHFFFAOYSA-N 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 12
- 230000007797 corrosion Effects 0.000 abstract description 12
- 239000002994 raw material Substances 0.000 abstract description 6
- 239000000654 additive Substances 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 13
- 238000012360 testing method Methods 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- ASKIVFGGGGIGKH-UHFFFAOYSA-N 2,3-dihydroxypropyl 16-methylheptadecanoate Chemical group CC(C)CCCCCCCCCCCCCCC(=O)OCC(O)CO ASKIVFGGGGIGKH-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- IVTHSFJXIARUFL-UHFFFAOYSA-N triazanium;thiophosphate Chemical compound [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=S IVTHSFJXIARUFL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/198—Graphene oxide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D233/56—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms
- C07D233/58—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring nitrogen 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
- C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
- C10M125/02—Carbon; Graphite
-
- 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
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/38—Heterocyclic nitrogen compounds
- C10M133/44—Five-membered ring containing nitrogen and carbon only
- C10M133/46—Imidazoles
-
- 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
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
-
- 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
- C10M2201/087—Boron oxides, acids or salts
-
- 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
- C10M2201/14—Inorganic compounds or elements as ingredients in lubricant compositions inorganic compounds surface treated with organic compounds
-
- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
-
- 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
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
-
- 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
- C10M2215/224—Imidazoles
-
- 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
-
- 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/047—Thioderivatives not containing metallic elements
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/04—Detergent property or dispersant property
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/18—Anti-foaming property
Abstract
The invention relates to the technical field of lubricating oil additives, in particular to composite lubricating oil and a preparation method thereof. The composite lubricating oil disclosed by the invention comprises the following raw materials in parts by weight: 80-90 parts of base oil, 1-3 parts of rust inhibitor, 1-5 parts of extreme pressure antiwear agent, 1-3 parts of antioxidant, 0.5-1.5 parts of viscosity index improver, 1-5 parts of detergent dispersant, 0.1-0.5 part of defoamer and 1-2 parts of methylimidazole chloride containing naphthyl; the modified graphene oxide is added into the raw materials, so that the problem that graphene is easy to agglomerate is solved, the wear-resistant and rust-resistant performance of the composite lubricating oil at high temperature can be ensured, and the wear-resistant and rust-resistant performance of the modified graphene can be promoted by adding the methylimidazole chloride salt containing naphthyl, so that the rust resistance and the wear resistance of the composite lubricating oil are further improved, and the composite lubricating oil has excellent corrosion resistance and rust resistance.
Description
Technical Field
The invention relates to the technical field of lubricating oil additives, in particular to composite lubricating oil and a preparation method thereof.
Background
With the continuous development and progress of society, the living standard of people is increasingly improved, private cars become a main traffic mode, in the use process of the cars, a plurality of parts are in various severe environments such as high temperature, low temperature, humidity and the like, and when some parts are in a high-speed motion state all the time, friction is often caused among the parts, and the service life of the parts is influenced. Particularly, for the engine, the engine is operated in a high-temperature and humid environment for a long time during the running process of the automobile, and the abrasion and the corrosion are more serious.
The lubricating oil has the functions of antifriction, anti-wear, corrosion resistance, rust prevention, cleaning, flushing, sealing and the like, and can greatly reduce friction among parts, but the lubricating oil is easy to mix with impurities such as water, dust, metal powder and the like when in daily use, and the lubricating oil gradually changes quality along with the increase of the service time, so that impurities such as oxidized substances, organic acid, colloid sludge and the like are generated, the corrosiveness of the lubricating oil on metal is increased, and the metal is corroded. Therefore, development of a lubricating oil having an anti-rust function is urgent.
Patent technical document CN202010864750.9 is a high-temperature extreme pressure wear-resistant lubricating oil and a preparation method thereof, and comprises the following raw material components: base oil, load WS 2 A grafted long chain alkyl graphene composite, a friction modifier, an antioxidant and a silicon defoamer; WS of the invention 2 The composite material is grafted long-chain alkyl graphene, and the grafted long-chain alkyl graphene has better lipophilicity and loads WS 2 The grafted long-chain alkyl graphene composite can exist in base oil more stably; can ensure the load WS 2 The grafted long-chain alkyl graphene compound forms a stable dispersion system in the lubricating oil, so that the occurrence of material agglomeration is reduced, and the prepared lubricating oil has stable properties, but the rust resistance of the lubricating oil is not proposed.
Patent technical document CN202111200862.5 discloses a lubricating oil composition for automobiles and a preparation method thereof, the invention comprises the following components: composite antirust agent, extreme pressure antiwear agent, antioxidant, auxiliary additive and base oil; according to the invention, the petroleum sodium sulfonate, the tall oil acid triethanolamine and the histidine are compounded to be used as the composite antirust agent, so that a passivation film is formed on the surface of equipment, thereby effectively preventing the equipment from rusting, greatly enhancing the antirust performance of the lubricating oil composition, effectively preventing the equipment from rusting and corroding, and prolonging the service life of the equipment. However, sodium petroleum sulfonate has poor high-temperature stability and poor corrosion and rust resistance under high-temperature conditions, and particularly when used for parts of an engine and the like under high-temperature environments, the corrosion and rust resistance is greatly reduced.
Disclosure of Invention
In view of the above, the invention aims to provide a compound lubricating oil and a preparation method thereof, so as to solve the problem that the lubricating oil is poor in corrosion resistance and rust resistance under the high-temperature condition.
Based on the purposes, the invention provides a compound lubricating oil which comprises the following raw materials in parts by weight: 80-90 parts of base oil, 1-3 parts of rust inhibitor, 1-5 parts of extreme pressure antiwear agent, 1-3 parts of antioxidant, 0.5-1.5 parts of viscosity index improver, 1-5 parts of detergent dispersant, 0.1-0.5 part of defoamer and 1-2 parts of methylimidazole chloride containing naphthyl;
the preparation method of the antirust agent comprises the following steps: mixing graphene oxide, hydrochloric acid and 1-aminonaphthalene-4-sulfonic acid, uniformly stirring, reacting for 3-5 hours at 280-300 ℃, then adding dimethylformamide into a reaction system, refluxing for 2-3 hours, adjusting the pH to 6.9-7.1 by using a sodium hydroxide solution, filtering, washing and drying to obtain an antirust agent;
preferably, the weight ratio of the graphene oxide to the hydrochloric acid to the 1-aminonaphthalene-4-sulfonic acid to the dimethylformamide is 1-3:1.5-2.5:0.5-1.5:15-20.
The preparation method of the methyl imidazole chloride salt containing naphthyl comprises the following steps:
mixing 1-chloromethylnaphthalene with 1-methylimidazole, and oil-bathing for 5-7h at 100-120 ℃ to obtain methylimidazole chloride containing naphthyl.
Preferably, the weight ratio of the 1-chloromethylnaphthalene to the 1-methylimidazole is 3-4:1-2.
Preferably, the base oil is one of a hydrogenated base oil, a polyolefin synthetic base oil, an alkylbenzene base oil, and an ester synthetic base oil.
Preferably, the extreme pressure antiwear agent is one of ammonium thiophosphate, molybdenum dibutyl dithiocarbamate, sodium tetraborate and potassium metaborate.
Preferably, the antioxidant is one of octyl diphenylamine, mono-nonyl diphenylamine, alpha-naphthylamine, phenyl-alpha-naphthylamine and butylphenyl-alpha-naphthylamine.
Preferably, the viscosity index improver is one of polymethacrylate, dispersed polymethacrylate, styrene-diene copolymer and styrene-isoprene copolymer.
Preferably, the detergent dispersant is isostearic acid monoglyceride, sorbitan monopalmitate, polyisobutylene succinimide, polyisobutylene bissuccinimide, and boronated polyisobutylene succinimide.
Preferably, the defoaming agent is one of tributyl phosphate, triisobutyl phosphate and triethyl phosphate.
Preferably, the number of layers of the graphene oxide is 1-10, and the sheet diameter is 500nm-2 mu m.
Further, the invention also provides a preparation method of the compound lubricating oil, which comprises the following steps:
(1) Heating the base oil to 50-80 ℃, adding the detergent dispersant and the antioxidant while stirring, and stirring for 20-40min to obtain a first mixture;
(2) Heating the first mixture to 100-110 ℃, stirring for 1-2h, cooling to 40-50 ℃, then adding an antirust agent, an extreme pressure antiwear agent, a viscosity index modifier, an additive and a defoaming agent according to a proportion while stirring, and continuing stirring for 2-4h to obtain the compound lubricating oil.
The invention has the beneficial effects that: (1) According to the composite lubricating oil, through modifying graphene oxide, on one hand, the surface activity of graphene can be reduced, so that graphene is not easy to agglomerate, the dispersibility of the graphene is improved, and the wear resistance of the graphene is further improved; on the other hand, the graphene has good thermal conductivity, so that the composite lubricating oil disclosed by the invention can be used in a high-temperature environment.
(2) According to the composite lubricating oil disclosed by the invention, the wear-resistant and rust-resistant performances of modified graphene can be promoted by adding the methylimidazole chloride containing naphthyl, and the wear resistance and rust resistance of the modified graphene are obviously improved.
Detailed Description
The present invention will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent.
The sources or properties of the reagents or raw materials used in the examples and comparative examples are as follows:
1-chloromethyl naphthalene was purchased from Shanghai Ala Biochemical technology Co., ltd, cat# C135697; 1-methylimidazole was purchased from Shanghai Ala Biochemical technologies Co., ltd, under the product number M109227.
Example 1: a compound lubricating oil comprises the following specific preparation steps:
(1) Mixing 1g of graphene oxide, 1.5g of hydrochloric acid and 0.5g of 1-aminonaphthalene-4-sulfonic acid, uniformly stirring, reacting for 3 hours at 280 ℃, then adding 15g of dimethylformamide into a reaction system, refluxing for 2 hours, slowly dropwise adding sodium hydroxide solution to keep the pH at 7, filtering, washing and drying to obtain an antirust agent;
(2) 3g of 1-chloromethylnaphthalene and 1g of 1-methylimidazole are mixed, and the mixture is subjected to oil bath for 5 hours at the temperature of 100 ℃ to obtain methylimidazole chloride containing naphthyl groups;
(3) Heating 80g of base oil to 50 ℃, adding 1g of sorbitan monopalmitate and 1g of octyl diphenylamine while stirring, and stirring for 20min to obtain a first mixture;
(4) Heating the first mixture to 100 ℃, stirring for 1h, cooling to 40 ℃, then adding 1g of antirust agent, 1g of amine thiophosphate salt, 0.5g of polymethacrylate, methyl imidazole chloride salt containing naphthyl and 0.1g of triethyl phosphate while stirring, and continuing stirring for 2h to obtain the compound lubricating oil.
Example 2: a compound lubricating oil comprises the following specific preparation steps:
(1) Mixing 2g of graphene oxide, 2g of hydrochloric acid and 1g of 1-aminonaphthalene-4-sulfonic acid, uniformly stirring, reacting for 4 hours at 290 ℃, then adding 18g of dimethylformamide into a reaction system, refluxing for 2.5 hours, slowly dropwise adding a sodium hydroxide solution to keep the pH at about 6.9, filtering, washing and drying to obtain an antirust agent;
(2) 3.5g of 1-chloromethylnaphthalene and 1.5g of 1-methylimidazole are mixed and oil-bathed for 6 hours at 110 ℃ to obtain methylimidazole chloride containing naphthyl groups;
(3) 85g of base oil is heated to 65 ℃,3g of sorbitan monopalmitate and 2g of octyl diphenylamine are added while stirring, and stirring is carried out for 30min, so as to obtain a first mixture;
(4) Heating the first mixture to 105 ℃, stirring for 1.5h, cooling to 45 ℃, then adding 2g of antirust agent, 3g of thiophosphoric acid amine salt, 1g of polymethacrylate, 1.5g of methylimidazole chloride salt containing naphthyl and 0.3g of triethyl phosphate while stirring, and continuing stirring for 3h to obtain the compound lubricating oil.
Example 3: a compound lubricating oil comprises the following specific preparation steps:
(1) Mixing 3g of graphene oxide, 2.5g of hydrochloric acid and 1.5g of 1-aminonaphthalene-4-sulfonic acid, uniformly stirring, reacting for 5 hours at 300 ℃, then adding 20g of dimethylformamide into a reaction system, refluxing for 3 hours, slowly dropwise adding a sodium hydroxide solution to keep the pH at about 6.9, filtering, washing and drying to obtain an antirust agent;
(2) Mixing 4g of 1-chloromethylnaphthalene with 2g of 1-methylimidazole, and carrying out oil bath for 7 hours at 120 ℃ to obtain methylimidazole chloride containing naphthyl groups;
(3) Heating 90g of base oil to 80 ℃, adding 5g of sorbitan monopalmitate and 3g of octyl diphenylamine while stirring, and stirring for 40min to obtain a first mixture;
(4) Heating the first mixture to 110 ℃, stirring for 2 hours, cooling to 50 ℃, then adding 3g of antirust agent, 5g of amine thiophosphate salt, 1.5g of polymethacrylate, 2g of methylimidazole chloride salt containing naphthyl and 0.5g of triethyl phosphate while stirring, and continuing stirring for 4 hours to obtain the compound lubricating oil.
Comparative example 1: a compound lubricating oil comprises the following specific preparation steps:
(1) 3.5g of 1-chloromethylnaphthalene and 1.5g of 1-methylimidazole are mixed and oil-bathed for 6 hours at 110 ℃ to obtain methylimidazole chloride containing naphthyl groups;
(2) 85g of base oil is heated to 65 ℃,3g of sorbitan monopalmitate and 2g of octyl diphenylamine are added while stirring, and stirring is carried out for 30min, so as to obtain a first mixture;
(3) Heating the first mixture to 105 ℃, stirring for 1.5h, cooling to 45 ℃, then adding 2g of 1-aminonaphthalene-4-sulfonic acid, 2g of graphene oxide, 3g of amine thiophosphate salt, 1g of polymethacrylate, 1.5g of methylimidazole chloride containing naphthyl and 0.3g of triethyl phosphate while stirring, and continuing stirring for 3h to obtain the composite lubricating oil.
Comparative example 2: a compound lubricating oil comprises the following specific preparation steps:
(1) 3.5g of 1-chloromethylnaphthalene and 1.5g of 1-methylimidazole are mixed and oil-bathed for 6 hours at 110 ℃ to obtain methylimidazole chloride containing naphthyl groups;
(2) 85g of base oil is heated to 65 ℃,3g of sorbitan monopalmitate and 2g of octyl diphenylamine are added while stirring, and stirring is carried out for 30min, so as to obtain a first mixture;
(3) Heating the first mixture to 105 ℃, stirring for 1.5h, cooling to 45 ℃, then adding 2g of graphene oxide, 3g of thiophosphoric acid amine salt, 1g of polymethacrylate, 1.5g of methylimidazole chloride salt containing naphthyl groups and 0.3g of triethyl phosphate while stirring, and continuing stirring for 3h to obtain the composite lubricating oil.
Comparative example 3: a compound lubricating oil comprises the following specific preparation steps:
(1) Mixing 2g of graphene oxide, 2g of hydrochloric acid and 1g of 1-aminonaphthalene-4-sulfonic acid, uniformly stirring, reacting for 4 hours at 290 ℃, then adding 18g of dimethylformamide into a reaction system, refluxing for 2.5 hours, slowly dropwise adding a sodium hydroxide solution to keep the pH at about 7.1, filtering, washing and drying to obtain an antirust agent;
(2) 85g of base oil is heated to 65 ℃,3g of sorbitan monopalmitate and 2g of octyl diphenylamine are added while stirring, and stirring is carried out for 30min, so as to obtain a first mixture;
(3) Heating the first mixture to 105 ℃, stirring for 1.5h, cooling to 45 ℃, adding 2g of antirust agent, 3g of amine thiophosphate, 1g of polymethacrylate and 0.3g of triethyl phosphate while stirring, and continuing stirring for 3h to obtain the compound lubricating oil.
Comparative example 4: a compound lubricating oil comprises the following specific preparation steps:
(1) 85g of base oil is heated to 65 ℃,3g of sorbitan monopalmitate and 2g of octyl diphenylamine are added while stirring, and stirring is carried out for 30min, so as to obtain a first mixture;
(2) The first mixture was heated to 105℃and stirred for 1.5 hours, cooled to 45℃and then 2g of graphene oxide, 3g of amine thiophosphate salt, 1g of polymethacrylate and 0.3g of triethyl phosphate were added while stirring, and stirring was continued for 3 hours to obtain a composite lubricating oil.
Performance testing
High temperature corrosion inhibition performance test: the samples obtained in the examples and the comparative examples were tested according to the method set in GB/T5096, the test temperature was set to 150 ℃, and the color and quality of the copper sheets before and after the test were measured, thereby evaluating the corrosiveness of the oil product to metals. After the experiment is finished, the deeper the copper sheet is, the stronger the corrosiveness is, and the lower the copper sheet is, the stronger the corrosiveness is. Adopting a KD-R1093 lubricating oil copper sheet corrosion tester, wherein the copper sheet material adopts electrolytic copper with the length of 75 mm, the width of 12.5 mm and the thickness of 3 mm and the purity of more than 99.9 percent; the test results are shown in table 1;
rust resistance test: the samples obtained in the examples and comparative examples were tested according to the test method of ASTM D665, in which the rust degree evaluation criteria are as follows: rust-free: the steel bar has no rust spots; slight rust: the rust points on the steel bar are not more than 6 points, and the diameter of each point is equal to or less than 1mm; medium rust: the rust point exceeds 6 points but is less than 5 percent of the surface area of the steel bar of the test row; severe rust: the rust area is more than 5 percent.
Abrasion resistance test: the samples obtained in the examples and the comparative examples are tested, the test temperature is 75 ℃, the ball feeding rotating speed is 1200r/min, the test time is 60min, and the load is 392N; the test results are shown in Table 1.
TABLE 1 Performance test results
| Corrosion grade | Rust resistance | Coefficient of friction | |
| Example 1 | 1a | Stainless steel | 0.33 |
| Example 2 | 1a | Stainless steel | 0.28 |
| Example 3 | 1a | Stainless steel | 0.30 |
| Comparative example 1 | 2a | Slightly rust | 0.51 |
| Comparative example 2 | 2b | Medium rust | 0.55 |
| Comparative example 3 | 1b | Slightly rust | 0.44 |
| Comparative example 4 | 2b | Medium rust | 0.68 |
Data analysis: as can be seen from examples 1 to 3 in table 1, the composite lubricating oil of the present invention has excellent corrosion inhibition resistance, rust inhibitive performance and friction resistance; under the high temperature condition, the corrosion inhibition performance can reach 1a, the rust prevention performance can reach a rust-free level, and the friction coefficient is not more than 0.035.
As can be seen from example 2 and comparative examples 1 to 4 in table 1, the composite lubricating oil of the present invention has excellent corrosion resistance, rust resistance and lubricating property by adding modified graphene together with methylimidazole chloride containing naphthyl groups to the raw materials; the graphene is grafted with the 1-aminonaphthalene-4-sulfonic acid, so that on one hand, partial groups on the surface of the graphene can be shielded, the surface activity of the graphene is reduced, the dispersibility of the graphene is improved, the possibility of agglomeration is reduced, and the wear resistance of the graphene is further improved, on the other hand, the graphene has good thermal conductivity, and the wear resistance and rust resistance of the composite lubricating oil under the high-temperature condition can be ensured; more importantly, the added methylimidazole chloride containing naphthyl can play a role in promoting the wear-resistant and rust-resistant performance of the modified graphene, and can remarkably improve the rust resistance and wear resistance of the modified graphene.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the invention (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the invention, the steps may be implemented in any order and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
The present invention is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present invention should be included in the scope of the present invention.
Claims (8)
1. The composite lubricating oil is characterized by comprising the following components in parts by weight: 80-90 parts of base oil, 1-3 parts of rust inhibitor, 1-5 parts of extreme pressure antiwear agent, 1-3 parts of antioxidant, 0.5-1.5 parts of viscosity index improver, 1-5 parts of detergent dispersant, 0.1-0.5 part of defoamer and 1-2 parts of methylimidazole chloride containing naphthyl;
the preparation method of the antirust agent comprises the following steps: mixing graphene oxide, hydrochloric acid and 1-aminonaphthalene-4-sulfonic acid, uniformly stirring, reacting for 3-5 hours at 280-300 ℃, then adding dimethylformamide into a reaction system, refluxing for 2-3 hours, slowly dropwise adding sodium hydroxide solution to keep the pH at 7, filtering, washing and drying to obtain modified graphene oxide;
the weight ratio of the graphene oxide to the hydrochloric acid to the 1-aminonaphthalene-4-sulfonic acid to the dimethylformamide is 1-3:1.5-2.5:0.5-1.5:15-20;
the preparation method of the methyl imidazole chloride salt containing naphthyl comprises the following steps:
mixing 1-chloromethylnaphthalene with 1-methylimidazole, and carrying out oil bath for 5-7h at 100-120 ℃ to obtain methylimidazole chloride containing naphthyl groups;
the weight ratio of the 1-chloromethylnaphthalene to the 1-methylimidazole is 3-4:1-2.
2. The composite lubricating oil of claim 1, wherein the base oil is one of a hydrogenated base oil, a polyolefin synthetic base oil, an alkylbenzene base oil, and an ester synthetic base oil.
3. The compound lubricating oil according to claim 1, wherein the extreme pressure antiwear agent is one of an amine thiophosphate salt, molybdenum dibutyl dithiocarbamate, sodium tetraborate, and potassium metaborate.
4. The compound lubricating oil according to claim 1, wherein the antioxidant is one of octyl diphenylamine, mono-nonyl diphenylamine, alpha-naphthylamine, phenyl-alpha-naphthylamine, butylphenyl-alpha-naphthylamine.
5. The composite lubricating oil of claim 1, wherein the viscosity index improver is a polymethacrylate.
6. The compound lubricating oil of claim 1, wherein the detergent dispersant is glycerol monostearate, sorbitan monopalmitate, polyisobutylene succinimide, polyisobutylene bissuccinimide, boronated polyisobutylene succinimide.
7. The compound lubricating oil according to claim 1, wherein the antifoaming agent is one of tributyl phosphate, triisobutyl phosphate and triethyl phosphate.
8. A method for preparing a complex lubricating oil according to any one of claims 1 to 7, comprising the steps of:
(1) Heating the base oil to 50-80 ℃, adding the detergent dispersant and the antioxidant while stirring, and stirring for 20-40min to obtain a first mixture;
(2) Heating the first mixture to 100-110 ℃, stirring for 1-2h, cooling to 40-50 ℃, then adding an antirust agent, an extreme pressure antiwear agent, a viscosity index modifier, methylimidazole chloride containing naphthyl and a defoaming agent according to a proportion while stirring, and continuing stirring for 2-4h to obtain the compound lubricating oil.
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