CN108384605B - Lubricating grease for automobile ball joint and preparation method thereof - Google Patents
Lubricating grease for automobile ball joint and preparation method thereof Download PDFInfo
- Publication number
- CN108384605B CN108384605B CN201810055085.1A CN201810055085A CN108384605B CN 108384605 B CN108384605 B CN 108384605B CN 201810055085 A CN201810055085 A CN 201810055085A CN 108384605 B CN108384605 B CN 108384605B
- Authority
- CN
- China
- Prior art keywords
- ball joint
- lubricating grease
- viscosity
- grease
- inorganic additive
- 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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- 239000004519 grease Substances 0.000 title claims abstract description 88
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000002199 base oil Substances 0.000 claims abstract description 53
- 239000000654 additive Substances 0.000 claims abstract description 44
- 230000000996 additive effect Effects 0.000 claims abstract description 40
- 239000002562 thickening agent Substances 0.000 claims abstract description 28
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 19
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 16
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 239000013556 antirust agent Substances 0.000 claims abstract description 9
- 229920002545 silicone oil Polymers 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 19
- 239000013067 intermediate product Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 17
- -1 sodium carboxylate Chemical class 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 239000011734 sodium Substances 0.000 claims description 14
- 229910052708 sodium Inorganic materials 0.000 claims description 14
- GVOKWQRBBGBEKH-UHFFFAOYSA-N C(CCCCCCCC(=O)O)(=O)O.OC(CCCCCCCCCCC(=O)O)CCCCCC Chemical group C(CCCCCCCC(=O)O)(=O)O.OC(CCCCCCCCCCC(=O)O)CCCCCC GVOKWQRBBGBEKH-UHFFFAOYSA-N 0.000 claims description 13
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 13
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 12
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 12
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 12
- DZFCVGNJQYFMAN-UHFFFAOYSA-N C(CCCCCCCCC(=O)O)(=O)O.OC(CCCCCCCCCCC(=O)O)CCCCCC Chemical compound C(CCCCCCCCC(=O)O)(=O)O.OC(CCCCCCCCCCC(=O)O)CCCCCC DZFCVGNJQYFMAN-UHFFFAOYSA-N 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 239000005642 Oleic acid Substances 0.000 claims description 12
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 12
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 12
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 12
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 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 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 8
- 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 7
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 7
- 229920001577 copolymer Polymers 0.000 claims description 7
- 229910021389 graphene Inorganic materials 0.000 claims description 7
- 239000003208 petroleum Substances 0.000 claims description 7
- 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 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 229920002367 Polyisobutene Polymers 0.000 claims description 4
- 150000008301 phosphite esters Chemical class 0.000 claims description 4
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 230000008859 change Effects 0.000 abstract description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 8
- 230000003647 oxidation Effects 0.000 abstract description 8
- 238000007254 oxidation reaction Methods 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 7
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- 239000002184 metal Substances 0.000 description 17
- 239000006185 dispersion Substances 0.000 description 9
- UQWQFRMRNFCETI-UHFFFAOYSA-N boric acid 12-hydroxyoctadecanoic acid Chemical compound B(O)(O)O.OC(CCCCCCCCCCC(=O)O)CCCCCC UQWQFRMRNFCETI-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
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- 238000005260 corrosion Methods 0.000 description 6
- 239000010687 lubricating oil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 235000015112 vegetable and seed oil Nutrition 0.000 description 6
- 239000008158 vegetable oil Substances 0.000 description 6
- NJOUARWUOQTCEC-UHFFFAOYSA-N B(O)(O)O.C(CCCCCCCCC(=O)O)(=O)O.OC(CCCCCCCCCCC(=O)O)CCCCCC Chemical compound B(O)(O)O.C(CCCCCCCCC(=O)O)(=O)O.OC(CCCCCCCCCCC(=O)O)CCCCCC NJOUARWUOQTCEC-UHFFFAOYSA-N 0.000 description 5
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- KHXYAQJTQUNAMH-UHFFFAOYSA-N P(=O)(O)(O)O.OC(CCCCCCCCCCC(=O)O)CCCCCC Chemical compound P(=O)(O)(O)O.OC(CCCCCCCCCCC(=O)O)CCCCCC KHXYAQJTQUNAMH-UHFFFAOYSA-N 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 235000019198 oils Nutrition 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000005069 Extreme pressure additive Substances 0.000 description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000000344 soap Substances 0.000 description 4
- 239000013538 functional additive Substances 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 239000006259 organic additive Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 239000002612 dispersion medium Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
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- 239000002105 nanoparticle Substances 0.000 description 2
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- 230000002265 prevention Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000010689 synthetic lubricating oil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- QCJQWJKKTGJDCM-UHFFFAOYSA-N [P].[S] Chemical compound [P].[S] QCJQWJKKTGJDCM-UHFFFAOYSA-N 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000007866 anti-wear additive Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 150000003818 basic metals Chemical class 0.000 description 1
- 125000002619 bicyclic group Chemical group 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- XEBCCEFGBHUASY-UHFFFAOYSA-N chlorine lead Chemical compound [Cl].[Pb] XEBCCEFGBHUASY-UHFFFAOYSA-N 0.000 description 1
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- 230000006866 deterioration Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
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- 239000000839 emulsion Substances 0.000 description 1
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- 239000010419 fine particle Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 235000021588 free fatty acids Nutrition 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
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- 239000011133 lead Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000011733 molybdenum Substances 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- KHFVGGRBRAHSFE-UHFFFAOYSA-N nonapotassium;triborate Chemical compound [K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[K+].[O-]B([O-])[O-].[O-]B([O-])[O-].[O-]B([O-])[O-] KHFVGGRBRAHSFE-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 235000021315 omega 9 monounsaturated fatty acids Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- JVUYWILPYBCNNG-UHFFFAOYSA-N potassium;oxido(oxo)borane Chemical compound [K+].[O-]B=O JVUYWILPYBCNNG-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- NVIFVTYDZMXWGX-UHFFFAOYSA-N sodium metaborate Chemical compound [Na+].[O-]B=O NVIFVTYDZMXWGX-UHFFFAOYSA-N 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- PTISTKLWEJDJID-UHFFFAOYSA-N sulfanylidenemolybdenum Chemical compound [Mo]=S PTISTKLWEJDJID-UHFFFAOYSA-N 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- 230000008719 thickening Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000005292 vacuum distillation Methods 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
- 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
-
- 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
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
-
- 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
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
-
- 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
- C10M2205/022—Ethene
-
- 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
- C10M2205/024—Propene
-
- 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
- C10M2205/026—Butene
-
- 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
-
- 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
- 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
- C10M2207/128—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 containing hydroxy groups; Ethers thereof
- C10M2207/1285—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 containing hydroxy groups; Ethers thereof used as thickening agents
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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
- 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
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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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
- 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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- 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
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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
- 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
- C10M2223/049—Phosphite
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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
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/0405—Siloxanes with specific structure used as base material
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- 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
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- 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
- C10N2030/08—Resistance to extreme temperature
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- 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
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- 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
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- 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
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
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Abstract
The invention discloses lubricating grease for an automobile ball joint, which comprises the following components in parts by mass: 75 to 85 portions of base oil, 10 to 22 portions of composite lithium-based thickening agent, 0.5 to 2 portions of extreme pressure antiwear agent, 0.3 to 3 portions of antirust agent, 0.3 to 2 portions of antioxidant, 0.05 to 1 portion of nano inorganic additive and 0.1 to 1 portion of viscosity index improver. The lubricating grease for the automobile ball joint has the advantages of excellent high-low temperature performance, small temperature change, small low-temperature torque and starting torque, and improved abrasion resistance and friction reduction performance to a certain extent, can realize good adsorption capacity with a ball joint friction pair, can achieve the effects of abrasion resistance, rust resistance, oxidation resistance and the like, and is simple in manufacturing method and low in cost. In addition, the invention also discloses a preparation method of the lubricating grease for the automobile ball joint.
Description
Technical Field
The invention relates to the technical field of lubricating grease, and particularly relates to lubricating grease for an automobile ball joint and a preparation method thereof.
Background
Ensuring that automobile hardware runs well and works safely is one of important guarantees for reducing traffic accidents, which has very high requirements on automobile accessories. Automobile ball joint accessories are needed to be used in systems such as an automobile direction control connecting rod device, a chassis suspension steering device and the like, and the ball joint of an automobile can meet various working conditions.
The automobile ball joint is one of important safety parts of an automobile and is directly related to the maneuverability, stability and safety of the automobile. The steering system, the steering drag link, the steering rocker arm and the knuckle arm of the automobile are connected by a ball head. The ball head consists of a metal ball head pin and a ball head pin seat, and a dust cover is arranged outside the ball head pin to ensure dust prevention and sealing of the ball head pin. The ball head part of the automobile steering pull rod has larger bearing capacity, and the ball joint suspension combines the front suspension effect and the steering effect, has up-and-down motion and rotation, is subjected to thrust and axial force, and can generate micro motion.
Automotive ball joints often need to operate in a variety of environments, such as low temperature, high temperature, humidity, drought, and the like, and withstand high starting torques. The automobile ball joint is frequently subjected to repeated abrasion of a metal friction pair in the working process, so that lubricating grease is separated and fails, and further the metal rod is corroded and oxidized. Thus, the ball joint conditions require that the grease have the following properties: (1) the starting torque is low, and the starting can be realized at low temperature; (2) excellent adhesion performance.
Prior patent CN201610124838.0 discloses a grease for tripod constant velocity joints, which comprises: 60-95 parts of base oil, 5.0-40.0 parts of composite soap, 0.1-10.0 parts of antioxidant and 0.1-10.0 parts of extreme pressure antiwear agent. In the patent technology, the base oil, the compound soap, the antioxidant and the extreme pressure antiwear agent are added into the lubricating grease, and the content of the base oil, the compound soap, the antioxidant and the extreme pressure antiwear agent is adjusted, so that the lubricating grease has good high-temperature performance.
As well as the prior patent CN201210174299.3, the special grease for the outer ball cage of the automobile universal joint has excellent extreme pressure wear resistance, water corrosion resistance and rust resistance, and the applicable temperature range is as follows: -25 ℃ to 150 ℃; the effective extreme pressure additive, in addition to the molybdenum disulfide solid film lubricant, can prevent the parts from wearing under severe operating conditions and impact load. The high-viscosity base oil prolongs the service life of the product and reduces the maintenance cost; the oxidation resistance is strong, the shutdown maintenance time is reduced, and the service life of the equipment is prolonged; the lubricating grease contains effective solid extreme pressure additive molybdenum disulfide, has strong wear resistance, does not become thin after long-term use, even if base oil is completely oxidized and decomposed, the sulfur-molybdenum powder can be decomposed only when the temperature reaches 450 ℃, and has strong extreme pressure wear resistance.
However, the technical problems solved by the above-mentioned prior art patents are to make the grease have stable performance under high temperature working conditions, and how to make the grease have the characteristics of reducing the ball joint starting torque, the low temperature starting torque, and excellent adhesion performance is a technical problem to be solved in the present patent art.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides lubricating grease for an automobile ball joint and a preparation method thereof.
The purpose of the invention is realized by the following technical scheme:
the lubricating grease for the automobile ball joint comprises the following components in parts by mass:
in one embodiment, the base oil is a high viscosity silicone oil.
In one embodiment, the high-viscosity silicone oil has a viscosity of 10-1000 mm at normal temperature2/s。
In one embodiment, the complex lithium-based thickener is at least one of a 12-hydroxystearic acid-azelaic acid system, a 12-hydroxystearic acid-sebacic acid system, and a 12-hydroxystearic acid-boric acid system.
In one embodiment, the extreme pressure antiwear agent is at least one of phosphite, calcium ultrahigh base number sulfonate, and tricresyl phosphate.
In one embodiment, the rust inhibitor is at least one of n-oleylsarcosine, sodium petroleum sulfonate, sodium carboxylate, and dodecenylsuccinic acid.
In one embodiment, the antioxidant is at least one of diphenylamine, phenyl-alpha-naphthylamine, diphenylamine derivatives, and phenyl-alpha-naphthylamine derivatives.
In one embodiment, the nano inorganic additive is at least one of molybdenum disulfide, graphene, and tungsten disulfide.
In one embodiment, the viscosity index improver is at least one of a polyisobutylene and an ethylene-propylene copolymer.
A preparation method of lubricating grease for an automobile ball joint specifically comprises the following steps:
step S10: mixing the composite lithium-based thickening agent and the base oil, heating and stirring, and cooling at constant temperature to obtain an intermediate product;
step S20: reacting a nano inorganic additive with oleic acid under a preset condition to obtain a modified nano inorganic additive;
step S30: and mixing the modified nano inorganic additive and base oil, mixing the mixture with the intermediate product, adding an extreme pressure antiwear agent, an antirust agent, an antioxidant and a viscosity index improver, stirring under a preset condition, and cooling to obtain the lubricating grease for the automobile ball joint.
Based on the technical scheme, the invention has the following technical effects:
(1) the lubricating grease is introduced with a proper amount of modified nano inorganic additive, which can be uniformly and stably distributed in the lubricating grease, so that the wear-resistant and anti-friction performance of the lubricating grease is improved to a certain extent;
(2) the lubricating grease is prepared by using high-viscosity silicone oil as base oil, has excellent high and low temperature performance, small temperature change and small low-temperature torque and starting torque;
(3) the functional additive adopts polar organic additives such as n-oleyl sarcosine, tricresyl phosphate and the like, so that the high-performance ball joint friction pair has good adsorption capacity, and can achieve the effects of wear resistance, rust prevention, oxidation resistance and the like;
(4) the manufacturing method is simple and the cost is low.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. Preferred embodiments of the present invention are given in the description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The lubricating grease for the automobile ball joint comprises the following components in parts by mass:
in one embodiment, the base oil of the grease is at least one of a mineral base oil, a synthetic base oil, and a vegetable oil base oil.
In one embodiment, the base oil of the grease is a mineral base oil that is refined from crude oil and has chemical constituents including a mixture of high boiling, high molecular weight hydrocarbons and non-hydrocarbons. The components of the compound are alkane (straight chain, branched chain and multi-branched chain), cyclane (monocyclic, bicyclic and polycyclic), aromatic hydrocarbon (monocyclic aromatic hydrocarbon and polycyclic aromatic hydrocarbon), naphthenic aromatic hydrocarbon, oxygen-containing, nitrogen-containing and sulfur-containing organic compounds, colloid, asphaltene and other non-hydrocarbon compounds, and the main production process comprises the following steps: atmospheric and vacuum distillation, solvent deasphalting, solvent refining, solvent dewaxing, and clay or hydrogenation refining. Mineral base oil is widely used, the using amount is large (more than about 90%), but in some application occasions, synthetic base oil and vegetable oil base oil are required to be prepared into products, and ester oil is used as high-end lubricating oil.
In one embodiment, the base oil of the grease is a synthetic base oil, which refers to a base oil synthesized by a chemical method, and the synthetic base oil has many kinds, and is commonly known as: synthetic hydrocarbons, synthetic esters, polyethers, silicone oils, fluorine-containing oils, phosphoric esters. The synthetic lubricating oil has better thermal oxidation stability than mineral oil, has the advantages of high thermal decomposition temperature, good low-temperature resistance and the like, but has higher cost and can ensure that equipment parts can work in more severe occasions.
In one embodiment, the base oil of the grease is vegetable oil, which has the incomparable characteristics of mineral base oil and most synthetic base oil, namely, can be biodegraded to rapidly reduce environmental pollution, and the vegetable oil has the advantages of low toxicity, better lubricating performance and extreme pressure performance than synthetic base lubricating oil, and is increasingly popular with vegetable oil. Since all industrial enterprises in the world are seeking measures to reduce environmental pollution, and the natural lubricating oil has the characteristic that although vegetable oil is high in cost, the increased cost can sufficiently offset the environmental management cost caused by using other mineral oil and synthetic lubricating oil.
In one embodiment, the base oil is high-viscosity silicone oil, which is a completely methylated high-molecular-weight linear siloxane polymer, is a highly viscous semisolid, and has the characteristics of high molecular weight, adhesion resistance, smoothness, water resistance, hydrophobicity, surface tension reduction, oxidation resistance, good weather resistance, high temperature resistance, compression resistance, good lubricity, good insulation property, no color, no smell, no toxicity, physiological inertia and the like; the base oil used as the lubricating grease has excellent high and low temperature performance, wide temperature operation application range (-20-250 ℃), excellent viscosity-temperature performance, thermal oxidation stability and low-temperature fluidity, excellent and stable damping torque effect under different temperature differences, and is completely carbonized at normal temperature, and is lubricated and noise-reduced.
It should be noted that viscosity is a measure of fluid viscosity and is an indication of fluid flow force versus internal friction. High viscosity indicates high internal friction, and the higher the molecular weight, the more hydrocarbon bonds and the greater this force. The viscosity is significant for the identification and determination of various lubricating oils and qualities, and the combustion performance and use degree of various fuel oils. Under the same distillation temperature, the petroleum product taking the alkane as the main component has low viscosity and better viscosity-temperature property, namely, the viscosity index is higher, namely, the change amplitude of the viscosity along with the temperature change is smaller; the viscosity of the oil containing more naphthenic hydrocarbon (or aromatic hydrocarbon) components is higher, namely the viscosity-temperature property is poorer; the oil product containing more colloid and aromatic hydrocarbon has the highest viscosity and the worst viscosity-temperature property, namely the lowest viscosity index. Viscosity is expressed in terms of kinematic viscosity in mm2/s。
In one embodiment, the high-viscosity silicone oil has a viscosity of 10 to 1000mm at room temperature2The high-viscosity silicone oil in the viscosity range is used as a dispersion medium in a lubricating grease dispersion system to better promote the orderly operation of the lubricating grease preparation; for another example, the viscosity of the high-viscosity silicone oil is 550mm at normal temperature2S; for another example, the viscosity of the high-viscosity silicone oil is 800mm at normal temperature2S; for another example, the viscosity of the high-viscosity silicone oil is 300mm at normal temperature2S; as another example, the viscosity of the high-viscosity silicone oil at normal temperature is 450mm2And/s, so that a more appropriate lubricating grease dispersion medium environment can be provided for subsequent mixing and stirring.
Wherein, the thickening agent is a solid substance with thickening effect and can form a special structural framework in the lubricating grease. The lubricating grease thickener is an indispensable solid component in the lubricating grease, and the content of the lubricating grease thickener is about 10-30% of the weight of the lubricating grease. The thickener has many functions in the grease, but the main functions are shown in the following aspects: the thickening agent can be dispersed in the base oil to form a structural framework, and the base oil is adsorbed and fixed in the structural framework, so that the semi-solid lubricating grease with plasticity is formed; it looks like a solid at normal temperature and in a static state, and can keep the shape of the body without flowing; can adhere to metal without slipping; when the temperature is high or the external force exceeds a certain limit, the liquid can flow like liquid.
Wherein the composite lithium-based thickener can be relatively uniformly dispersed in the base oil to reach a proper dispersion degree, can maintain the granularity of fine particles, and cannot be mutually aggregated into large particles for a long time; the surface is oleophilic, and can form a stable dispersion system with base oil; has certain stability, for example, does not deteriorate due to heat melting or chemical change under the use condition of the lubricating grease; it does not corrode worn metal itself, nor does the deteriorated product corrode worn metal. For example, in one embodiment, the complex lithium-based thickener is at least one of a 12-hydroxystearic acid-azelaic acid system, a 12-hydroxystearic acid-sebacic acid system, and a 12-hydroxystearic acid-boric acid system; as another example, in one embodiment, the complex lithium-based thickener is a mixture of a 12-hydroxystearic acid-azelaic acid system and a 12-hydroxystearic acid-sebacic acid system; as another example, in one embodiment, the complex lithium-based thickener is a mixture of a 12-hydroxystearic acid-azelaic acid system and a 12-hydroxystearic acid-boric acid system; as another example, in one embodiment, the complex lithium-based thickener is a 12-hydroxystearic acid-azelaic acid system and a 12-hydroxystearic acid-sebacic acid system in a ratio of 2: 1, so that the composite lithium-based thickening agent can be relatively uniformly dispersed in the base oil to reach a proper dispersion degree, forms a stable dispersion system with the base oil, has excellent stability, does not deteriorate due to thermal melting or chemical change under the use condition of the lubricating grease, does not cause corrosive wear to metals, and does not cause corrosive wear to metals even if the deteriorated product.
In order to improve the high-temperature fluidity and mechanical stability of the grease for the automotive ball joint, particularly reduce the amount of bearing leakage, for example, the complex lithium-based thickener includes at least one of a 12-hydroxystearic acid-azelaic acid system, a 12-hydroxystearic acid-sebacic acid system, a 12-hydroxystearic acid-boric acid system, a 12-hydroxystearic acid-phosphoric acid system, a 12-hydroxystearic acid-salicylic acid system, and a 12-hydroxystearic acid-sebacic acid-boric acid system; as another example, the complex lithium-based thickener includes a 12-hydroxystearic acid-azelaic acid system, a 12-hydroxystearic acid-sebacic acid system, a 12-hydroxystearic acid-boric acid system, a 12-hydroxystearic acid-phosphoric acid system, a 12-hydroxystearic acid-salicylic acid system, and a 12-hydroxystearic acid-sebacic acid-boric acid system; for example, the mass ratio of the 12-hydroxystearic acid-azelaic acid system, the 12-hydroxystearic acid-sebacic acid system, the 12-hydroxystearic acid-boric acid system, the 12-hydroxystearic acid-phosphoric acid system, the 12-hydroxystearic acid-salicylic acid system and the 12-hydroxystearic acid-sebacic acid-boric acid system is (0.1-10): 0.1-5): 0.1-6.8): 0.1-9): 0.1-7.6): 0.1-13.4; for another example, the mass ratio of the 12-hydroxystearic acid-azelaic acid system, the 12-hydroxystearic acid-sebacic acid system, the 12-hydroxystearic acid-boric acid system, the 12-hydroxystearic acid-phosphoric acid system, the 12-hydroxystearic acid-salicylic acid system, and the 12-hydroxystearic acid-sebacic acid-boric acid system is 8: 4: 0.5: 0.2: 1.3: 2.4, the 12-hydroxystearic acid-azelaic acid system, the 12-hydroxystearic acid-sebacic acid system, the 12-hydroxystearic acid-boric acid system, the 12-hydroxystearic acid-phosphoric acid system, the 12-hydroxystearic acid-salicylic acid system and the 12-hydroxystearic acid-sebacic acid-boric acid system in the proportion can obviously improve the high-temperature fluidity and the mechanical stability of the lubricating grease for the automobile ball joint, and particularly reduce the bearing leakage.
However, base oils alone have little antiwear capacity until no additives have been added, whether mineral or synthetic. The anti-wear properties are provided by the composite anti-wear additive, independent of the base oil. The extreme pressure antiwear agent is an important lubricating grease additive, and most of the extreme pressure antiwear agent is a compound containing sulfur, phosphorus, chlorine, lead and molybdenum. Under the general condition, chlorine and sulfur can improve the load-bearing capacity of the lubricating grease and prevent the metal surface from being sintered, clamped and scratched under the high-load condition; the phosphorus and organic metal salts have high abrasion resistance, and can prevent or reduce the abrasion of the metal surface under the medium load condition. In practical application, different kinds of extreme pressure antiwear agents are mixed according to a certain proportion to achieve better service performance. The additive contains chlorine, phosphorus or sulfur compound, so it has both extreme pressure and antiwear properties. For example, in one embodiment, the extreme pressure antiwear agent is at least one of a phosphite, an ultra-high base number calcium sulfonate, and tricresyl phosphate; as another example, in one embodiment, the extreme pressure antiwear agent includes a phosphite, an ultra-high base number calcium sulfonate, and tricresyl phosphate. Furthermore, based on the composition of the extreme pressure antiwear agent in any of the embodiments, the extreme pressure antiwear agent further comprises at least one of sodium metaborate, potassium metaborate and potassium triborate, the extreme pressure resistance of borate is far greater than that of sulfur-phosphorus type and chlorine-lead type additives, the extreme pressure antiwear agent is tasteless and nontoxic, has good extreme pressure antiwear property and thermal stability, is not corrosive to copper, and has the action mechanism that Fe formed by boronizationxByThe extreme pressure film has high hardness, good antiwear performance, good antioxidant performance,And (4) corrosion resistance. The extreme pressure property of the sulfur, phosphorus and chlorine containing active elements has the action mechanism that the active elements and metal react to generate a film, and the shear strength of the film is lower than that of the basic metal, so that the film is easily ground off in the using process, and the consumption of the additive is faster than that of borate. The borate additive generally does not cause metal corrosion, and the extreme pressure additive containing phosphorus, sulfur and chlorine is not well prepared and often causes metal corrosion. The borate has little toxicity, and the borate extreme pressure additive has good compatibility with other additives.
The lubricating grease antirust agent has two purposes, namely adding the antirust agent for enhancing the antirust property of the lubricating grease, and serving as an additive of the antirust grease for the storage, the sealing storage, the transportation and the maintenance of metal products. For example, in one embodiment, the rust inhibitor is at least one of n-oleylsarcosine, sodium petroleum sulfonate, sodium carboxylate, and dodecenylsuccinic acid; for another example, the rust inhibitor comprises n-oleyl sarcosine, sodium petroleum sulfonate, sodium carboxylate and dodecenyl succinic acid, so that the selected sodium petroleum sulfonate has a synergistic effect because it is a basic sulfonate in the case that other additives in the grease are acidic.
The metal soap content in the grease is about 10%, and the grease is more easily oxidized and deteriorated than general lubricating oil due to the catalytic action of metal ions. The oxidative deterioration of the lubricating grease is characterized by rancidity, low-molecular free fatty acid is generated, the corrosion resistance of the product is poor, and the service life is shortened. The antioxidant comprises amines and acids, and diphenylamine is used as the main component. For example, in one embodiment, the antioxidant is at least one of diphenylamine, phenyl- α -naphthylamine, diphenylamine derivatives, and phenyl- α -naphthylamine derivatives, and the use of the antioxidant described in any of the above examples enables the grease to have excellent high and low temperature performance due to the higher heat resistance of amine antioxidants as compared to phenols.
Furthermore, in order to improve the performance of the grease for the automobile ball joint and effectively reduce the wear, the performance of the grease can be significantly improved by adding the nano inorganic additive into the grease, and some of the nano inorganic additive is even significantly better than the organic additive, for example, in one embodiment, the nano inorganic additive is at least one of molybdenum disulfide, graphene and tungsten disulfide, molybdenum disulfide with the particle size of less than 10 μm can not only improve the lubricating effect of the grease, but also can be used as an encapsulant to avoid oil leakage, graphene has strong adsorption capacity, the reactivity of carbon element is high, and a very thin carburized layer is formed on the surface of a metal matrix at high temperature generated in the friction process, so that the effects of friction reduction and wear resistance are achieved.
In order to improve the viscosity-temperature performance of the lubricating grease, so as to obtain the characteristics of good low-temperature starting performance and proper viscosity maintenance at high temperature, a viscosity index improver is added to improve the viscosity-temperature performance of the lubricating grease by changing the viscosity index and the viscosity-temperature curve of base oil, for example, in one embodiment, the viscosity index improver is at least one of polyisobutylene and ethylene propylene copolymer; as another example, the viscosity index improver further comprises the following components: at least one of hydrogenated styrene diene copolymer and polymethacrylate, so that the high-molecular coil of the viscosity index improver stretches at high temperature and shrinks at low temperature, and the change of the coil shape ensures that the coil has high tackifying capability at high temperature and small tackifying capability at low temperature, thereby improving the viscosity-temperature performance of the lubricating oil.
The preparation method of the lubricating grease for the automobile ball joint in one embodiment specifically comprises the following steps:
step S10: mixing the composite lithium-based thickening agent and the base oil, heating and stirring, and cooling at constant temperature to obtain an intermediate product;
mixing the composite lithium-based thickening agent with a certain amount of base oil through step S10, so that the thickening agent can be rapidly and uniformly dispersed in the base oil in the subsequent fat-making process, and the more vigorous the mechanical stirring in the reaction process, the faster the reaction rate, for example, after mixing 10-22 parts of the composite lithium-based thickening agent with 30-40 parts of the base oil, heating to 150-200 ℃, stirring for 1-3 hours, and cooling in a thermostat at 15-40 ℃ to obtain an intermediate product; for another example, 12 parts of the composite lithium-based thickener is mixed with 30 parts of the base oil, heated to 180 ℃, stirred for 2 hours, and cooled in a thermostat at 25 ℃ to obtain an intermediate product.
Further, in one embodiment, the stirring speed in step S10 is 60 r/min; in another embodiment, the stirring speed in step S10 is 30 r/min.
Step S20: reacting a nano inorganic additive with oleic acid under a preset condition to obtain a modified nano inorganic additive;
general inorganic nanoparticles have relatively high surface energy and poor organic affinity with relatively low surface energy, and the two are not well miscible with each other when mixed, resulting in voids in the interface. The coupling agent technology is adopted, namely the surface of the nano particles can generate good intermiscibility with organic matters after being treated by the coupling agent. The modified nano inorganic additive is obtained through the step S20, and the dispersion stability of the nano inorganic additive in the lubricating grease can be improved, for example, the modified nano inorganic additive is obtained after 0.05 to 1 part of the nano inorganic additive reacts with oleic acid for 1 to 3 hours at the temperature of between 50 and 90 ℃; for another example, 0.05 to 1 part of the nano inorganic additive reacts with oleic acid at 50 to 90 ℃ for 1 to 3 hours to obtain the modified nano inorganic additive, wherein the oleic acid is a monounsaturated Omega-9 fatty acid, and the nano inorganic additive is modified by the oleic acid, so that the dispersion stability of the nano inorganic additive in the grease can be improved.
Step S30: and mixing the modified nano inorganic additive and base oil, mixing the mixture with the intermediate product, adding an extreme pressure antiwear agent, an antirust agent, an antioxidant and a viscosity index improver, stirring under a preset condition, and cooling to obtain the lubricating grease for the automobile ball joint.
Through the step S30, the base oil and the intermediate product are mixed, the base oil has excellent high and low temperature performance, small temperature change, small low temperature torque and small starting torque, various functional additives are added, the modified nano inorganic additive can be uniformly and stably distributed in the lubricating grease, so that the anti-wear and anti-friction performance of the lubricating grease is improved to a certain extent, the functional additive adopts polar organic additives such as n-oleyl sarcosine, tricresyl phosphate and the like, the lubricating grease has good adsorption capacity with a ball joint friction pair, and can achieve the effects of wear resistance, rust resistance, oxidation resistance and the like, the prepared lubricating grease for the automobile ball joint has the characteristics of reducing the ball joint starting torque, the low temperature starting torque, excellent adhesion performance and the like, and the preparation method is simple, low in cost and convenient for popularization and production. For example, 0.05 to 1 part of modified nano inorganic additive and 30 to 50 parts of base oil are mixed for 1 to 3 hours, then mixed with the intermediate product, and added with 0.5 to 2 parts of extreme pressure antiwear agent, 0.3 to 3 parts of antirust agent, 0.3 to 2 parts of antioxidant and 0.1 to 1 part of viscosity index improver, stirred for 2 to 4 hours at the temperature of between 40 and 60 ℃, and naturally cooled to obtain the lubricating grease for the automobile ball joint. Furthermore, in order to realize the particle miniaturization, the mixing process of the modified nano inorganic additive and the base oil adopts an ultrasonic mixing treatment mode to achieve the effects of dispersion and emulsification, so that the modified nano inorganic additive and the base oil are uniformly mixed to form a dispersion system, the modified nano inorganic additive is uniformly distributed in the base oil to form an emulsion, an emulsifier is not needed, and the production cost is saved.
The concept of the invention is further illustrated by the following examples:
example 1:
15 parts of 12-hydroxystearic acid-lithium azelaic acid-based thickening agent and 35 parts of high-viscosity silicone oil (the viscosity is 550mm at normal temperature)2And/s), heating to 180 ℃, stirring for reaction for 2 hours, and cooling at a constant temperature of 25 ℃ to obtain an intermediate product. Adding 0.5 part of molybdenum disulfide into 200mL of oleic acid, reacting at 80 ℃ for 2h to obtain modified molybdenum disulfide, and adding 0.3 part of modified molybdenum disulfide into 46.6 parts of high-viscosity silicone oil (the viscosity is 550mm at normal temperature)2And/s) ultrasonic mixing for 2h, mixing with the intermediate product, adding 1 part of phosphite ester, 0.8 part of dodecenylsuccinic acid, 1 part of diphenylamine and 0.3 part of polyisobutene, stirring for 2h at 50 ℃, and naturally cooling to room temperature to obtain the lubricating grease for the automobile ball joint. The performance index of the grease is shown in table 1.
Example 2:
13 parts of 12-hydroxystearic acid-lithium azelaic acid-based thickening agent and 40 parts of high-viscosity silicone oil (the viscosity is 800mm at normal temperature)2And/s), heating to 190 ℃, stirring for reaction for 2.5 hours, and cooling at a constant temperature of 25 ℃ to obtain an intermediate product. Adding 1 part of graphene into 100mL of oleic acid, reacting at 85 ℃ for 2h to obtain modified graphene, and adding 0.5 part of modified graphene into 43.4 parts of high-viscosity silicone oil (the viscosity is 800mm at normal temperature)2And/s) for 2.5 hours, mixing with the intermediate product, adding 1 part of ultrahigh-base-number calcium sulfonate, 0.8 part of sodium carboxylate, 1 part of phenyl-alpha-naphthylamine and 0.3 part of ethylene-propylene copolymer, stirring at 55 ℃ for 2 hours, and naturally cooling to room temperature to obtain the lubricating grease for the automobile ball joint. The performance index of the grease is shown in table 1.
Example 3:
19 parts of 12-hydroxystearic acid-lithium azelaic acid-based thickening agent and 35 parts of high-viscosity silicone oil (the viscosity is 300mm at normal temperature)2And/s), heating to 170 ℃, stirring for reaction for 2 hours, and cooling at constant temperature of 30 ℃ to obtain an intermediate product. Adding 1 part of graphene into 200mL of oleic acid, reacting at 90 ℃ for 1.5h to obtain modified graphene, and adding 0.8 part of modified graphene into 42.1 parts of high-viscosity silicone oil (the viscosity is 300mm at normal temperature)2And/s) for 2.5h, mixing with the intermediate product, adding 1 part of phosphite ester, 0.3 part of sodium carboxylate, 0.3 part of sodium petroleum sulfonate, 1 part of diphenylamine and 0.5 part of ethylene-propylene copolymer, stirring at 50 ℃ for 2h, and naturally cooling to room temperature to obtain the lubricating grease for the automobile ball joint. The performance index of the grease is shown in table 1.
Example 4:
20 parts of a composite lithium-based thickener (a mixture of a 12-hydroxystearic acid-azelaic acid system and a 12-hydroxystearic acid-sebacic acid system mixed in a mass ratio of 2: 1) and 28 parts of high-viscosity silicone oil (having a viscosity of 450mm at normal temperature)2And/s), heating to 180 ℃, stirring for reaction for 2 hours, and cooling at a constant temperature of 27 ℃ to obtain an intermediate product. Taking 1.0 part of sodiumAdding a rice inorganic additive (a mixture of molybdenum disulfide and graphene mixed according to a mass ratio of 2.1: 1) into 200mL of oleic acid, reacting at 90 ℃ for 1.5h to obtain a modified nano inorganic additive, and adding 1.0 part of the modified nano inorganic additive into 48.8 parts of high-viscosity silicone oil (the viscosity is 450mm at normal temperature)2And/s) for 2.5h, mixing with the intermediate product, adding 0.5 part of phosphite ester, 0.5 part of tricresyl phosphate, 0.3 part of sodium carboxylate, 0.3 part of sodium petroleum sulfonate, 0.6 part of diphenylamine, 0.5 part of phenyl-alpha-naphthylamine and 0.5 part of ethylene-propylene copolymer, stirring at 50 ℃ for 2h, and naturally cooling to room temperature to obtain the lubricating grease for the automobile ball joint. The performance index of the grease is shown in table 1.
Table 1 shows performance test data of the grease for ball joints of the present invention.
TABLE 1 Performance test data for greases for automotive ball joints
| Test items | Example 1 | Example 2 | Example 3 | Example 4 | Test method |
| Dropping Point/. degree.C | 299 | 304 | 298 | 352 | GB/T3498-2008 |
| Working cone penetration/0.1 mm | 321 | 332 | 341 | 368 | GB/T269-1991 |
| Corrosion (T2 copper sheet, room temperature, 24h) | 1a | 1a | 1a | 1a | GB/T7326-1987 |
| Evaporation capacity (99 ℃, 22 h)% (mass fraction) | 1.2 | 0.8 | 0.9 | 0.6 | SH/T0337-2004 |
| Steel mesh oil distribution amount | 0.3 | 0.3 | 0.3 | 0.3 | SH/T0324-2010 |
| Abrasive grain diameter D (392N, 60min)/mm | 0.35 | 0.32 | 0.32 | 0.28 | SH/T0204-1992 |
| Maximum no-seizing load PB/N | 1235 | 1235 | 1235 | 1304 | SH/T0202-1992 |
| Sintering load PD/N | 3924 | 3087 | 3924 | 4232 | SH/T0202-1992 |
As can be seen from the comparison of the data in table 1, the sample prepared by adopting the formula and the preparation method of the lubricating grease for the automobile ball joint has excellent high-low temperature performance, small temperature change, small low-temperature torque and starting torque, and improved abrasion resistance and friction reduction performance to a certain extent, so that the lubricating grease not only can realize good adsorption capacity with a ball joint friction pair, but also can achieve the effects of abrasion resistance, rust resistance, oxidation resistance and the like, and has simple preparation method and low cost; in addition, it should be particularly noted that the performance of the grease for the ball joint of the automobile prepared by the technical scheme of the example 4 is obviously better than that of the grease for the ball joint of the automobile prepared by the technical schemes of the examples 1, 2 and 3.
The above embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. The lubricating grease for the automobile ball joint is characterized by comprising the following components in parts by mass:
75-85 parts of base oil;
10-22 parts of a composite lithium-based thickening agent;
0.5-2 parts of an extreme pressure antiwear agent;
0.3-3 parts of an antirust agent;
0.3-2 parts of an antioxidant;
0.05-1 part of modified nano inorganic additive;
0.1-1 part of viscosity index improver;
the base oil is high-viscosity silicone oil;
the viscosity of the high-viscosity silicone oil is 300-1000 mm at normal temperature2/s；
The composite lithium-based thickening agent is a 12-hydroxystearic acid-azelaic acid system and a 12-hydroxystearic acid-sebacic acid system, wherein the weight ratio of the 12-hydroxystearic acid-azelaic acid system to the 12-hydroxystearic acid-sebacic acid system is 2: 1 in a mass ratio;
the extreme pressure antiwear agent is at least one of phosphite ester, calcium sulfonate with ultrahigh base number and tricresyl phosphate;
the antirust agent is at least one of n-oleyl sarcosine, sodium petroleum sulfonate, sodium carboxylate and dodecenyl succinic acid;
the modified nano inorganic additive is obtained by reacting a nano inorganic additive with oleic acid at 50-90 ℃ for 1-3 h.
2. The grease for automobile ball joints according to claim 1, wherein the antioxidant is at least one of diphenylamine, phenyl- α -naphthylamine, diphenylamine derivatives, and phenyl- α -naphthylamine derivatives.
3. The grease for the ball joint of the automobile as claimed in claim 1, wherein the nano inorganic additive is at least one of molybdenum disulfide, graphene and tungsten disulfide.
4. The grease for an automotive ball joint of claim 1, wherein the viscosity index improver is at least one of polyisobutylene and an ethylene-propylene copolymer.
5. The preparation method of the lubricating grease for the automobile ball joint according to any one of claims 1 to 4, characterized by comprising the following steps:
step S10: mixing the composite lithium-based thickening agent and the base oil, heating and stirring, and cooling at constant temperature to obtain an intermediate product;
step S20: reacting a nano inorganic additive with oleic acid under a preset condition to obtain a modified nano inorganic additive;
step S30: and mixing the modified nano inorganic additive and base oil, mixing the mixture with the intermediate product, adding an extreme pressure antiwear agent, an antirust agent, an antioxidant and a viscosity index improver, stirring under a preset condition, and cooling to obtain the lubricating grease for the automobile ball joint.
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| CN109097168A (en) * | 2018-08-31 | 2018-12-28 | 郑州市欧普士科技有限公司 | A kind of nano-graphene constant velocity cardan joint special grease and preparation method thereof |
| CN109880681A (en) * | 2019-02-25 | 2019-06-14 | 江苏澳润新材料有限公司 | A kind of ultra high temperature lubricating grease additive and preparation method thereof |
| CN110408462A (en) * | 2019-07-22 | 2019-11-05 | 纳拓润滑技术（上海）有限公司 | A kind of lubricating grease and preparation method thereof for tie rod ball |
| CN111548843B (en) * | 2020-05-09 | 2022-08-23 | 中国石油化工股份有限公司 | Commercial vehicle steering ball lubricating grease and application thereof |
| CN113293052A (en) * | 2021-05-25 | 2021-08-24 | 苏州安美润滑科技有限公司 | Automobile ball cage lubricating grease and preparation method thereof |
| CN113462454A (en) * | 2021-06-23 | 2021-10-01 | 中国人民解放军陆军勤务学院 | Extreme pressure anti-wear lubricating grease and preparation method thereof |
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