EP2714866A1 - Use of nanoscale materials in a composition for preventing symptoms of fatigue in the surface-closed structure of drive elements - Google Patents
Use of nanoscale materials in a composition for preventing symptoms of fatigue in the surface-closed structure of drive elementsInfo
- Publication number
- EP2714866A1 EP2714866A1 EP12720427.9A EP12720427A EP2714866A1 EP 2714866 A1 EP2714866 A1 EP 2714866A1 EP 12720427 A EP12720427 A EP 12720427A EP 2714866 A1 EP2714866 A1 EP 2714866A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oils
- composition according
- composition
- nanoparticles
- pitting
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 54
- 239000000463 material Substances 0.000 title abstract description 10
- 206010016256 fatigue Diseases 0.000 title 1
- 208000024891 symptom Diseases 0.000 title 1
- 239000002105 nanoparticle Substances 0.000 claims description 51
- 239000002245 particle Substances 0.000 claims description 37
- 239000006185 dispersion Substances 0.000 claims description 26
- 239000010695 polyglycol Substances 0.000 claims description 21
- 229920000151 polyglycol Polymers 0.000 claims description 21
- 239000000314 lubricant Substances 0.000 claims description 20
- 239000000654 additive Substances 0.000 claims description 18
- 239000003921 oil Substances 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000012876 carrier material Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 8
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 claims description 7
- 239000003153 chemical reaction reagent Substances 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000002296 dynamic light scattering Methods 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 235000021317 phosphate Nutrition 0.000 claims description 4
- 239000000344 soap Substances 0.000 claims description 4
- 235000013877 carbamide Nutrition 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000003925 fat Substances 0.000 claims description 3
- 239000013020 final formulation Substances 0.000 claims description 3
- 125000000524 functional group Chemical group 0.000 claims description 3
- 239000002480 mineral oil Substances 0.000 claims description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 229910052582 BN Inorganic materials 0.000 claims description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 239000012963 UV stabilizer Substances 0.000 claims description 2
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 150000004982 aromatic amines Chemical class 0.000 claims description 2
- 150000004696 coordination complex Chemical class 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000006072 paste Substances 0.000 claims description 2
- 239000010702 perfluoropolyether Substances 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 150000004760 silicates Chemical class 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 150000003871 sulfonates Chemical class 0.000 claims description 2
- 239000002562 thickening agent Substances 0.000 claims description 2
- 125000004149 thio group Chemical group *S* 0.000 claims description 2
- 150000003672 ureas Chemical class 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims 2
- 239000010696 ester oil Substances 0.000 claims 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000011814 protection agent Substances 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 238000010186 staining Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000009472 formulation Methods 0.000 description 9
- 229910004298 SiO 2 Inorganic materials 0.000 description 7
- 229910052681 coesite Inorganic materials 0.000 description 6
- 229910052906 cristobalite Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910052682 stishovite Inorganic materials 0.000 description 6
- 229910052905 tridymite Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910000077 silane Inorganic materials 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 3
- 239000002199 base oil Substances 0.000 description 3
- SXPLZNMUBFBFIA-UHFFFAOYSA-N butyl(trimethoxy)silane Chemical compound CCCC[Si](OC)(OC)OC SXPLZNMUBFBFIA-UHFFFAOYSA-N 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 238000007306 functionalization reaction Methods 0.000 description 3
- 239000012208 gear oil Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 2
- 239000007866 anti-wear additive Substances 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- YXMVRBZGTJFMLH-UHFFFAOYSA-N butylsilane Chemical compound CCCC[SiH3] YXMVRBZGTJFMLH-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 206010037844 rash Diseases 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 150000003557 thiazoles Chemical class 0.000 description 2
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- 229910002020 Aerosil® OX 50 Inorganic materials 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 229910020175 SiOH Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000010692 aromatic oil Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- -1 ester compounds Chemical class 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910002011 hydrophilic fumed silica Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- KHYKFSXXGRUKRE-UHFFFAOYSA-J molybdenum(4+) tetracarbamodithioate Chemical compound C(N)([S-])=S.[Mo+4].C(N)([S-])=S.C(N)([S-])=S.C(N)([S-])=S KHYKFSXXGRUKRE-UHFFFAOYSA-J 0.000 description 1
- 239000002077 nanosphere Substances 0.000 description 1
- FPLYNRPOIZEADP-UHFFFAOYSA-N octylsilane Chemical compound CCCCCCCC[SiH3] FPLYNRPOIZEADP-UHFFFAOYSA-N 0.000 description 1
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- PARWUHTVGZSQPD-UHFFFAOYSA-N phenylsilane Chemical compound [SiH3]C1=CC=CC=C1 PARWUHTVGZSQPD-UHFFFAOYSA-N 0.000 description 1
- 238000013379 physicochemical characterization Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 238000002444 silanisation Methods 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004627 transmission electron microscopy Methods 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 238000003466 welding Methods 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
- C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
- C10M125/10—Metal oxides, hydroxides, carbonates or bicarbonates
-
- 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
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/02—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic oxygen-containing compound
-
- 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
- C10M125/26—Compounds containing silicon or boron, e.g. silica, sand
-
- 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
- C10M147/00—Lubricating compositions characterised by the additive being a macromolecular compound containing halogen
- C10M147/02—Monomer containing carbon, hydrogen and halogen only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
-
- 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
- C10M2201/10—Compounds containing silicon
- C10M2201/105—Silica
-
- 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
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/1033—Polyethers, i.e. containing di- or higher polyoxyalkylene groups 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
- C10M2209/1045—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only 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
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/04—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having a silicon-to-carbon bond, e.g. organo-silanes
-
- 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
- C10M2229/02—Unspecified siloxanes; Silicones
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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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
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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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
- C10N2020/06—Particles of special shape or size
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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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
- C10N2020/061—Coated particles
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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
- C10N2030/02—Pour-point; Viscosity index
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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
- C10N2030/04—Detergent property or dispersant property
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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
- C10N2030/12—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
- C10N2070/00—Specific manufacturing methods for lubricant compositions
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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
- C10N2070/00—Specific manufacturing methods for lubricant compositions
- C10N2070/02—Concentrating of additives
Definitions
- the present invention relates to the use of nanoscale materials in a composition applied to their surfaces to prevent fatigue damage in drive elements.
- this order protects the surfaces of drive elements against the formation of gray staining, surface fatigue, micro-pitting and pitting. The occurrence of fatigue damage on these surfaces is thereby prevented or reduced.
- gray pitting and pitting are those which are the most severe material damage from the resulting cracks.
- DE-OS 1 644 934 describes organophosphates as additives in lubricants which are added as anti-fatigue additives.
- EP 1 642 957 A1 discloses thiazoles as anti-pitting additives.
- EP 1 642 957 A1 relates to the use of MoS 2 and molybdenum dithiocarbamate, which are used as additives in urea fats for propeller shafts.
- the additives known from the prior art described above are not thermally stable as organic substances.
- they can evaporate under the operating conditions or can react as a classic anti-wear additives, especially with the metal surfaces, ie they predominantly react on the touching roughness peaks, since there by the flash temperatures occurring sufficient energy for a chemical reaction with the metallic Friction layer is present. Therefore, they can at most act as subordinate anti-pitting additives.
- Solid lubricants such as molybdenum disulfide, on the other hand, have a tendency to precipitate out due to their density Settle oil formulations and may also have a corrosive effect.
- the object of the present invention is to provide a composition which can be applied to the surfaces of drive elements so as to prevent or reduce the fatigue phenomena "gray spots" and "pitting" on these drive elements.
- the composition should contain no volatile organic compounds as anti-pitting additive and the anti-pitting additives should be in a liquid phase with Newtonian flow behavior. This allows them to penetrate into the structures or depressions described above and reinforce the metal structure there.
- the subject of the present invention is accordingly the use of a composition which is applied to the surface of the drive elements in order to prevent or avoid fatigue phenomena. It has surprisingly been found that the application of a composition containing surface-modified nanoparticles and a carrier material prevents or prevents the fatigue damage, such as gray pitting and pitting.
- the surface-modified nanoparticles contained in the composition are oxidic nanoparticles. They can be selected from silica, zinc oxide and alumina.
- surface modification reagents such as alkyl, aryl, Alkylarylsilanes having at least 1 to 3 of these alkyl, aryl or alkylaryl groups, which may additionally contain functional groups, in particular thio groups, phosphate groups and which are used individually or in combination.
- the optionally present thio or phosphate groups can additionally undergo a reaction with the metal surface to be protected.
- the amount of modifying reagent per nm 2 of the particle surface is 0.1 to 10 molecules of the modifying reagent, preferably 0.3 to 5 molecules. This chemical modification has the effect that the nanoparticles in different base oils are monoparticulate, ie without aggregation.
- composition may contain mixtures of nanoparticles which are both different from one another and have different particle sizes.
- the surface-modified nanoparticles have an average particle size of from 10 nm to less than 200 nm, preferably from 10 nm to 100 nm.
- the particle size of nanoparticles can be determined by different methods. Dry methods such as transmission electron microscopy often provide smaller particle sizes than the dynamic light scattering measurement, as in the latter method a relatively tightly bound solvent envelope requires larger values.
- the particle size data in this application are generally related to dynamic light scattering results.
- the carrier material is selected from the group consisting of mineral oils, synthetic hydrocarbons, polyglycols, esters and ester compounds, PFPE, native oils and derivatives of native oils, aromatic oils such as phenyl ethers and mixtures thereof.
- Polygkycols, esters and synthetic hydrocarbons are particularly preferably used as carrier material.
- composition of the present invention containing the nanoparticles and the carrier may further be incorporated into a lubricant become.
- This lubricant may be in the form of fats, pastes, oils and is selected from the group consisting of a lubricating oil or mixtures of lubricating oils, polyglycols, silicone oils, perfluoropolyethers, mineral oils, esters, synthetic hydrocarbons, phenyl ethers, native oils and derivatives of native oils.
- organic or inorganic thickeners in particular PTFE, graphite, metal oxides, boron nitride, molybdenum disulfide, phosphates, silicates, sulfonates, polyimides, metal soaps, metal complex soaps, ureas and mixtures thereof, solid lubricants such as graphite, M0S2.
- compositions which are used as a concentrate in one of the above-mentioned lubricants are particularly preferred.
- soluble additives in particular aromatic amines, phenols, phosphates, as well as corrosion inhibitors, antioxidants, anti-wear agents, friction reducing agents, means for protection against metal influences, UV stabilizers may be present in the composition.
- composition of the invention generally consists of 0.1 to 40 wt .-% surface-modified nanoparticles, in particular 2 to 20 wt .-% surface-modified nanoparticles, and 99.9% to 60% by weight of carrier material, in particular 8 to 80 wt. -% carrier material.
- the introduction of the nanoparticles into the carrier material can take place in two ways.
- dispersions of nanoparticles can be produced in a sol-gel process and surface-modified in the dispersion, and then the dispersion can be prepared by adding the support material and removing the volatile solvents.
- This process can be referred to as redispersing and has the advantage that the nanoparticles are always wetted by liquid and thus the risk of agglomeration is reduced.
- This method is described in the following examples.
- the solvents may be removed and the dry particles isolated. By dispersing under shear and optionally elevated temperature, the particles can be incorporated. Which method is to be used depends on various factors such as particle type, particle sizes, type and extent of surface coverage and chemical nature of the carrier material and must be individually tailored.
- This composition can then be incorporated into any lubricant so that, based on the final formulation of 0.1-10% nanoparticles, 99.9-90% lubricant.
- FIG. 1 Particle size distribution of a batch of Levasil 200N / 30%
- Figure 2 Particle size of the S1O2 dispersion, wherein the particles with the
- FIG. 3 Particle size of the S1O2 dispersion after functionalization with
- FIG. 4 Particle size distribution in polyglycol (Example 4)
- FIG. 5 The theological properties of the nanoparticles
- SiO 2 nanoparticles The preparation of SiO 2 nanoparticles is described, for example, in: W. Stöber, A. Fink, Journal of Colloid and Interface Science 26, 62-69, 1968 or in: Chen Wang et al. Matehals Letters 6_1, 2007, 506 - 510.
- the disadvantage of using the Stöber process in production is that the resulting dispersions have low levels of SiO 2 nanoparticles, typically around 3% by mass S1O 2.
- the stability of the nanoparticles and also the nature of the particles which form are determined by the choice of reaction conditions, in particular the pH.
- Levasil Under the trade name Levasil (Akzo Nobel, formerly HC Starck) aqueous dispersions are offered with solids contents of up to 50%. For example, Levasil 200N / 30% is a 30% dispersion stabilized with ammonia. The particle size is given as about 55 nm. This size distribution is confirmed by the diagram in Figure 1, which shows the particle analysis with a Malvern Zetasizer. Also available from Akzo Nobel under the trade name Bindzil are S1O2 nanodispersions with particle sizes around 10 nm and solids contents up to 40%, the surfaces of which are modified with epoxysilane.
- 83.11 g of the dispersion of functionalized nanoparticles according to Example 2 are mixed with 28.10 g of water-miscible polyglycol (monomers ethylene oxide and propylene oxide, kinematic viscosity 100 mm 2 / sec at 40 ° C.) in a rotary evaporator while heating with the oil bath to 100 ° C. and applying a vacuum, for example with a water jet pump, concentrated.
- the result is a clear liquid.
- the high dispersion to oil ratio is required in order to be able to produce concentrations of 10% nanoparticles in the polyglycol in the low concentration of SiO 2 particles on which the dispersions prepared in the Stöber process are based.
- polyglycol dispersions are prepared which in all cases build on the dispersion of Example 1.
- silanes phenyltrimethoxysilane and triethoxy (octyl) silane were used in addition to butyltrimethoxysilane. It was modified with a silane per nm 2 analogously to Example 2. In all cases, clear liquids result after redispersion. Table 1 shows that the kinematic viscosity is only slightly increased. The content of Si0 2 is also reflected in the higher density.
- Table 1 shows the data of the 10% dispersions of the butyl silane, octyl silane and phenyl silane modified nanoparticles in polyglycol.
- the dynamic viscosity of the nanoparticle-containing oils was determined as a function of the shear rate using a cone / plate system on the rheometer.
- the shear rate is increased logarithmically from 50 sec “1 to 5000 sec " 1 .
- the dynamic viscosity remains independent of the shear rate, so it is observed Newton's flow behavior (see FIG. 5).
- Aerosil-containing mixture designated 4e in FIG. 5, thus shows a pronounced deviation from Newton 's flow behavior, which can be explained by an interaction of the unmodified particles.
- Table 2 shows little influence on the theological properties of the nanoparticles. So there are also highly concentrated dispersions, such as Levasil, possible as a nanoparticle source.
- nanoparticle dispersion containing 1% Si0 2 .
- Example 6 The nanoparticles in Example 6 have a small, negligible influence on the rheological properties, resulting in VKA endurance a slight deterioration.
- the wear factor is increased slightly, the coefficient of friction remains the same.
- the welding force a slight improvement is observed.
- the effect on friction and wear is therefore dependent on the experimental conditions and can also lead to deterioration. There is no effect as an anti-wear additive.
- Gear oil formulations were made with 60 nm SiO 2 particles with a butyl surface modification. For this purpose, a 10% dispersion of the modified nanoparticles in polyglycol was used, which can be easily stirred into the formulation. The concentration of nanoparticles in the final formulation is 1%.
- the formulation was prepared in two viscosity layers (100 and 220 est).
- Corrosion protection additives 0,305 0,305 0,305 0,305 0,305
- the gray speckling is significantly reduced when nanoparticles are used in a polyglycol gear oil. Overall, it can be stated that the nanoparticles have significantly improved the gray-particle bearing capacity by using the two compositions containing the nanoparticles, when they are present as a deposit on the surfaces of the drive elements starting from a good level of references 100 est and 220 est) are.
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
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DE102011103215A DE102011103215A1 (en) | 2011-06-01 | 2011-06-01 | Use of nanoscale materials in a composition to prevent fatigue phenomena in the near-surface microstructure of drive elements |
PCT/EP2012/001997 WO2012163468A1 (en) | 2011-06-01 | 2012-05-09 | Use of nanoscale materials in a composition for preventing symptoms of fatigue in the surface-closed structure of drive elements |
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EP2714866A1 true EP2714866A1 (en) | 2014-04-09 |
EP2714866B1 EP2714866B1 (en) | 2016-06-29 |
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US (1) | US9296970B2 (en) |
EP (1) | EP2714866B1 (en) |
JP (1) | JP5762629B2 (en) |
KR (1) | KR101594771B1 (en) |
CN (1) | CN103732728A (en) |
BR (1) | BR112013031020B1 (en) |
DE (1) | DE102011103215A1 (en) |
DK (1) | DK2714866T3 (en) |
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JP2015117345A (en) * | 2013-12-19 | 2015-06-25 | 株式会社アドマテックス | Lubricant composition and method for producing the same |
CN104450007A (en) * | 2014-11-19 | 2015-03-25 | 上海应用技术学院 | High temperature-resistant lubricating grease for electric conduction and preparation method thereof |
RU2582999C1 (en) * | 2015-02-20 | 2016-04-27 | Общество с ограниченной ответственностью "Инженерная смазочная компания "МИСКОМ" | Composite lubricant |
EP3292188B1 (en) * | 2015-05-04 | 2023-09-27 | Pixelligent Technologies, LLC | Nano-additives enabled advanced lubricants |
KR101714394B1 (en) * | 2015-11-30 | 2017-03-10 | 계명대학교 산학협력단 | manufacturing method of solid lubricants for bearing havig improved heat resistance |
CN106398805A (en) * | 2016-08-31 | 2017-02-15 | 中山大学惠州研究院 | Method for improving elastic deformability of lithium-based lubricating grease by using surface modified nanoparticles |
DE102017004541A1 (en) | 2017-05-11 | 2018-11-15 | Klüber Lubrication München Se & Co. Kg | lubricant composition |
CN109233943B (en) * | 2018-09-26 | 2021-09-03 | 山东莱克科技有限公司 | Lubricant prepared from nano material and preparation method thereof |
EP3839016A1 (en) * | 2019-12-20 | 2021-06-23 | Total Marketing Services | Lubricating composition for gear |
CN112961721B (en) * | 2020-12-30 | 2022-09-20 | 徐州振峰新材料科技有限公司 | Graphene-containing lubricating protection additive for lubricating oil |
KR20230159828A (en) | 2021-03-24 | 2023-11-22 | 디아이씨 가부시끼가이샤 | Grease composition containing particles |
CN113322119B (en) * | 2021-06-29 | 2022-03-01 | 河南大学 | Special nano energy-saving lubricating oil for methanol engine and preparation method thereof |
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GB1147508A (en) | 1967-01-30 | 1969-04-02 | Mobil Oil Corp | Lubricant composition |
JPH11140476A (en) * | 1997-08-05 | 1999-05-25 | Nippon Shokubai Co Ltd | Lubricant |
JP3466920B2 (en) * | 1998-05-15 | 2003-11-17 | マブチモーター株式会社 | Small motor with worm reducer |
JP4714977B2 (en) * | 2000-09-27 | 2011-07-06 | Jfeスチール株式会社 | Lubrication method for rolling bearings |
US20030092585A1 (en) | 2001-11-13 | 2003-05-15 | The Lubrizol Corporation | Lubricating compositions and concentrates containing an antiwear amount of a thiadiazole |
AU2003265192A1 (en) | 2002-10-14 | 2004-05-04 | Akzo Nobel N.V. | Aqueous silica dispersion |
JP2004150473A (en) * | 2002-10-29 | 2004-05-27 | Jfe Steel Kk | Lubricating method for rolling bearing |
JP2005097514A (en) * | 2003-08-27 | 2005-04-14 | Nsk Ltd | Lubricant for rolling device, and rolling device |
JP4444680B2 (en) * | 2004-01-27 | 2010-03-31 | 有限会社ナプラ | Lubricant composition |
JP2006096949A (en) | 2004-09-30 | 2006-04-13 | Toyoda Mach Works Ltd | Grease composition for ball type constant velocity joint and ball type constant velocity joint |
JP2006144827A (en) * | 2004-11-16 | 2006-06-08 | Nsk Ltd | Rolling device |
US20070161518A1 (en) * | 2006-01-11 | 2007-07-12 | National Starch And Chemical Investment Holding Corporation | Boron Nitride Based Lubricant Additive |
KR20080041870A (en) * | 2006-11-08 | 2008-05-14 | 에스케이에너지 주식회사 | Lubricating oil composition for internal combustion |
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WO2008127395A2 (en) * | 2007-04-11 | 2008-10-23 | Cerion Technologies, Inc. | Ceramic high temperature lubricity agent |
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EP2028224A1 (en) * | 2007-07-30 | 2009-02-25 | Nanoresins AG | Plasticizer composition |
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CN102272277A (en) * | 2008-12-30 | 2011-12-07 | 3M创新有限公司 | Lubricant composition and method of forming |
WO2010085802A2 (en) * | 2009-01-26 | 2010-07-29 | Baker Hughes Incorporated | Additives for improving motor oil properties |
EP2311926A1 (en) * | 2009-10-09 | 2011-04-20 | Rhein Chemie Rheinau GmbH | Additive for lubricant for improving the tribologic properties, a method for its production and application |
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- 2012-05-09 ES ES12720427.9T patent/ES2589812T3/en active Active
- 2012-05-09 WO PCT/EP2012/001997 patent/WO2012163468A1/en active Application Filing
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BR112013031020A2 (en) | 2018-04-24 |
US20140162914A1 (en) | 2014-06-12 |
WO2012163468A1 (en) | 2012-12-06 |
ES2589812T3 (en) | 2016-11-16 |
JP2014518932A (en) | 2014-08-07 |
KR101594771B1 (en) | 2016-02-17 |
US9296970B2 (en) | 2016-03-29 |
DK2714866T3 (en) | 2016-09-19 |
BR112013031020B1 (en) | 2019-11-19 |
KR20140018976A (en) | 2014-02-13 |
DE102011103215A1 (en) | 2012-12-06 |
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CN103732728A (en) | 2014-04-16 |
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