CN116790304A - Solid-oil composite super-lubrication system and application thereof - Google Patents
Solid-oil composite super-lubrication system and application thereof Download PDFInfo
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- CN116790304A CN116790304A CN202310772219.2A CN202310772219A CN116790304A CN 116790304 A CN116790304 A CN 116790304A CN 202310772219 A CN202310772219 A CN 202310772219A CN 116790304 A CN116790304 A CN 116790304A
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- epoxy resin
- oil
- lubrication
- solid
- lubrication system
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- 238000005461 lubrication Methods 0.000 title claims abstract description 86
- 239000002131 composite material Substances 0.000 title claims abstract description 51
- 239000003822 epoxy resin Substances 0.000 claims abstract description 105
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 105
- 238000000576 coating method Methods 0.000 claims abstract description 87
- 239000011248 coating agent Substances 0.000 claims abstract description 86
- 239000003921 oil Substances 0.000 claims abstract description 65
- 239000002199 base oil Substances 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 37
- 239000000178 monomer Substances 0.000 claims description 33
- 239000000758 substrate Substances 0.000 claims description 30
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 15
- 239000004952 Polyamide Substances 0.000 claims description 15
- 229940057995 liquid paraffin Drugs 0.000 claims description 15
- 229920002647 polyamide Polymers 0.000 claims description 15
- 229920002545 silicone oil Polymers 0.000 claims description 14
- 239000002202 Polyethylene glycol Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 13
- 229920001223 polyethylene glycol Polymers 0.000 claims description 13
- 230000001050 lubricating effect Effects 0.000 claims description 12
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 11
- 150000002148 esters Chemical class 0.000 claims description 11
- 229920000570 polyether Polymers 0.000 claims description 11
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 10
- 229920005862 polyol Polymers 0.000 claims description 10
- 150000003077 polyols Chemical class 0.000 claims description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003960 organic solvent Substances 0.000 claims description 9
- 229920013639 polyalphaolefin Polymers 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 8
- 150000008064 anhydrides Chemical class 0.000 claims description 8
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 8
- 239000002480 mineral oil Substances 0.000 claims description 8
- 235000010446 mineral oil Nutrition 0.000 claims description 8
- -1 alkyl naphthalene Chemical compound 0.000 claims description 7
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 7
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 7
- 239000008158 vegetable oil Substances 0.000 claims description 7
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims description 6
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims description 6
- 229920006334 epoxy coating Polymers 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- 229920001451 polypropylene glycol Polymers 0.000 claims description 6
- 238000000935 solvent evaporation Methods 0.000 claims description 6
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- WVRNUXJQQFPNMN-VAWYXSNFSA-N 3-[(e)-dodec-1-enyl]oxolane-2,5-dione Chemical compound CCCCCCCCCC\C=C\C1CC(=O)OC1=O WVRNUXJQQFPNMN-VAWYXSNFSA-N 0.000 claims description 4
- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 claims description 4
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 4
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 4
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- 150000003927 aminopyridines Chemical class 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 239000004842 bisphenol F epoxy resin Substances 0.000 claims description 4
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 4
- 239000004359 castor oil Substances 0.000 claims description 4
- 235000019438 castor oil Nutrition 0.000 claims description 4
- 229960000860 dapsone Drugs 0.000 claims description 4
- XAKXZZPEUKNHMA-UHFFFAOYSA-N decyl decanoate Chemical compound CCCCCCCCCCOC(=O)CCCCCCCCC XAKXZZPEUKNHMA-UHFFFAOYSA-N 0.000 claims description 4
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 229920002717 polyvinylpyridine Polymers 0.000 claims description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 4
- 125000002723 alicyclic group Chemical group 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 3
- 150000008442 polyphenolic compounds Chemical class 0.000 claims description 3
- 235000013824 polyphenols Nutrition 0.000 claims description 3
- 239000010693 vegetable lubricating oil Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 33
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 230000002195 synergetic effect Effects 0.000 abstract description 8
- 239000000919 ceramic Substances 0.000 abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 23
- 239000010935 stainless steel Substances 0.000 description 23
- 235000019198 oils Nutrition 0.000 description 18
- 239000012298 atmosphere Substances 0.000 description 17
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 16
- 238000011056 performance test Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- 239000010410 layer Substances 0.000 description 13
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 12
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 8
- 238000001035 drying Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 235000019441 ethanol Nutrition 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- CWTQBXKJKDAOSQ-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;octanoic acid Chemical compound CCC(CO)(CO)CO.CCCCCCCC(O)=O CWTQBXKJKDAOSQ-UHFFFAOYSA-N 0.000 description 3
- LCFVJGUPQDGYKZ-UHFFFAOYSA-N Bisphenol A diglycidyl ether Chemical compound C=1C=C(OCC2OC2)C=CC=1C(C)(C)C(C=C1)=CC=C1OCC1CO1 LCFVJGUPQDGYKZ-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229920000604 Polyethylene Glycol 200 Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 239000011787 zinc oxide Substances 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
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/40—Esters containing free hydroxy or carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
-
- 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
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
- C10M107/10—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation containing aliphatic monomer having more than 4 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
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
- C10M107/34—Polyoxyalkylenes
-
- 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
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/50—Lubricating compositions characterised by the base-material being a macromolecular compound containing silicon
-
- 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
- C10M109/00—Lubricating compositions characterised by the base-material being a compound of unknown or incompletely defined constitution
- C10M109/02—Reaction products
-
- 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
- C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
-
- 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
-
- 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
- C10N2050/08—Solids
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a solid-oil composite super-lubrication system and application thereof, which belong to the technical field of super-lubrication materials. Based on the effective isolation of the self-formed double-layer epoxy resin coating on the friction pair and the abundant groups on the surface of the friction pair, the oil molecules are induced to construct a stable oil film on the surface of the friction pair, so that a strong lubrication synergistic effect can be formed with various base oils, the friction coefficient of friction pair interfaces of steel-steel, steel-ceramic, steel-plastic and the like can be remarkably reduced, and an ultra-lubrication state and an ultra-high wear-resistant service life can be achieved. The super-lubricating performance is realized through the synergistic effect of the epoxy resin coating and different types of base oil, and particularly, the friction coefficient of the composite lubrication with the polar alcohol base oil can be as low as 0.001, which is two orders of magnitude lower than that of the friction coefficient without the coating, and the friction pair is close to a zero-abrasion state.
Description
Technical Field
The invention belongs to the technical field of super-lubricating materials, and particularly relates to a solid-oil composite super-lubricating system and application thereof.
Background
Super lubrication is a special state where the coefficient of friction approaches zero, also known as ultra low friction or near zero friction. In engineering, a lubrication state with a friction coefficient of less than 0.01 is generally referred to as super lubrication. According to estimation, if the super lubrication can be applied on a large scale in engineering, the energy dissipation caused by friction is expected to be remarkably reduced. Therefore, the development of super-lubricating materials and technology is significant for the long-term development of mechanical equipment in the future high-technology field.
Among the lubrication technologies, oil lubrication has the advantages of high stability, long service life and the like, and is the most widely used lubrication technology for mechanical equipment at present. However, the disadvantages of oil lubrication technology are also significant: at present, the friction coefficient of most conventional base oil is still high, and the super-lubrication state is difficult to achieve. In particular, the mechanical devices are often in a lean state during start-up and shut-down, the coefficient of friction at this time increases significantly, and the amount of wear of the friction pair increases dramatically. On the other hand, currently, common single base oil media, such as base mineral oil like paraffin, poly alpha-olefin (PAO) and silicone oil, still have challenges, especially the lubrication of friction interfaces of common metals and ceramics (such as bearing steel, silicon carbide, etc.), the lubrication performance of the friction interfaces is far from reaching the super lubrication state, and especially in the boundary lubrication state of less oil or lean oil, the friction abrasion is serious, and the requirements of higher mechanical lubrication in the future high technical field cannot be further met.
The epoxy resin coating has high bonding strength, good film forming property, high chemical inertia and excellent mechanical property, and has great application advantages in the technical field of surface engineering. However, epoxy resin has a high friction coefficient and poor wear resistance, so that the application of the epoxy resin in the technical field of lubrication is greatly limited.
Disclosure of Invention
In order to solve the technical problems, the invention provides a solid-oil composite super-lubrication system and application thereof. According to the invention, the liquid lubricating material is assembled on the surface of the epoxy resin, so that solid-liquid composite lubrication is realized, the advantages of the solid and liquid lubricating materials are combined, the effect of isolating friction side effects of the epoxy resin coating can be exerted, the chemical synergistic effect of the lubricant and the epoxy resin coating can be exerted, the friction coefficient and the wear rate are reduced, and the service life and the reliability are further improved.
In order to achieve the above purpose, the invention provides a solid-oil composite super-lubrication system, wherein an epoxy resin coating with a double-layer structure is formed on the surface of a substrate by a solvent evaporation method, the thickness of the top layer is 0.1-5 mu m, and a liquid lubrication material is assembled on the surface of the epoxy resin coating to form the solid-oil composite super-lubrication system.
The invention is based on the effective isolation of the epoxy resin coating to the friction pair and the abundant groups on the surface thereof, induces oil molecules to construct a stable oil film on the surface thereof, can form a stronger lubrication synergistic effect with various base oils, can obviously reduce the friction coefficient of friction pair interfaces of steel-steel, steel-ceramic, steel-plastic and the like, and achieves an ultra-lubrication state and an ultra-high wear-resistant service life. Wherein, the preferable proposal is bisphenol A or bisphenol F type self-forming double-layer structural epoxy resin coating, the thickness of the top layer is 0.1-5 mu m, and the composite lubricating effect of the self-forming double-layer structural epoxy resin coating and three base oils of synthetic polyol, silicone oil and synthetic ester base oil is optimal.
Further, the liquid lubricating material includes mineral oil, fully synthetic hydrocarbon base oil, synthetic polyol, synthetic polyether, synthetic ester base oil, silicone oil, vegetable oil or lubricating oil, preferably polyol, silicone oil and synthetic ester base oil.
Further, the mineral oil comprises liquid paraffin or 150N;
the total synthetic hydrocarbon base oil is poly alpha olefin or alkyl naphthalene;
the synthetic polyol comprises polyethylene glycol, polypropylene glycol or glycerol;
the synthetic polyether is polyethylene glycol monomethyl ether;
the synthetic ester base oil is trimethylolpropane capryl caprate;
the vegetable oil is castor oil.
Further, the preparation method of the epoxy resin coating comprises the following steps:
mixing an epoxy resin monomer with a curing agent, ultrasonically dissolving the mixture in an organic solvent, forming a coating on the surface of a substrate by a solvent evaporation method, and baking the substrate in an atmospheric environment at 40-200 ℃ to obtain an epoxy resin coating with a self-formed double-layer structure;
the thickness of the epoxy coating is less than 500 μm.
Further, the mass ratio of the epoxy resin monomer to the curing agent is 1:3-3:1;
the epoxy resin monomer comprises one of bisphenol A type epoxy resin, bisphenol F type epoxy resin, polyphenol type glycidyl ether epoxy resin, alicyclic glycidyl ether epoxy resin and glycidyl ester type epoxy resin, and preferably bisphenol A type epoxy resin or bisphenol F type epoxy resin;
the curing agent comprises an amine curing agent, a pyridine curing agent and an anhydride curing agent;
the organic solvent comprises normal butanol, ethanol or toluene and other common organic solvents.
Further, the curing agent includes ethylenediamine, diphenylamine, dapsone, polyamide 650, polyimide, polyether ammonia, polyazelaic anhydride, phthalic anhydride, dodecenyl succinic anhydride, polyvinylpyridine, aminopyridine, KH550, or KH560 silane coupling agent.
A method for reducing the friction coefficient of a friction fit sub-interface, comprising the steps of: and the liquid lubricating material is assembled on the surface of the epoxy resin coating, and the coating amount is 10-50 mu L.
The solid-oil composite super-lubrication system is applied to the field of super lubrication.
Furthermore, the solid-oil composite super-lubrication system is used for surface lubrication protection of mechanical parts which are frequently started and stopped at medium and low speeds or antifriction and antiwear modification of interfaces of bearing parts made of different materials.
The solid-oil composite super-lubrication system can be used in different environments including air, nitrogen and vacuum environments (vacuum degree is higher than 10) -3 Pa).
Compared with the prior art, the invention has the following advantages and technical effects:
(1) The oil product type suitable for realizing the solid-oil composite super-lubrication performance by adopting the inorganic coating material is single at present, the polymer thermosetting coating with a double-layer structure is adopted for the first time, and the constructed solid-oil composite super-lubrication system is suitable for various base oils, especially including nonpolar base oils. The super-lubricating performance is realized through the synergistic effect of the epoxy resin coating with a double-layer structure and different types of base oil, and especially the friction coefficient of the composite lubrication with the alcohol base oil can be as low as 0.001, which is lower by two orders of magnitude than that of a friction pair of pure metal (such as stainless steel), and the friction pair is close to a zero-abrasion state.
(2) The super-lubricating epoxy resin coating has the advantages of low cost of raw materials for realizing super-lubrication, double-layer structure formed independently, simple preparation method, wide application range and high efficiency.
(3) The invention realizes super lubrication through solid-oil cooperation, has extremely small oil consumption, is favorable for realizing super lubrication performance and near zero abrasion in a low oil or lean oil state, is particularly suitable for the surface lubrication protection of mechanical parts which are frequently started and stopped at medium and low speeds, and greatly reduces the use cost of lubricating materials of mechanical equipment.
(4) The solid-oil composite super-lubrication system is suitable for antifriction and antiwear modification of interfaces of bearing parts made of different materials, including bearing parts such as ceramics, engineering plastics and bearing steel, because the bonding strength of epoxy resin and common bearing materials is high.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a cross-sectional top scanning electron microscope image of a bilayer structure epoxy coating;
FIG. 2 shows the results of the change in the coefficient of friction with sliding time for sample 1 and sample 6;
FIG. 3 shows the results of the change in the coefficient of friction with sliding time for sample 2 and sample 7;
FIG. 4 shows the results of the change in the coefficient of friction with sliding time for samples 3 and 8;
FIG. 5 shows the results of the change in the coefficient of friction with sliding time for samples 4 and 9;
FIG. 6 shows the results of the change in the coefficient of friction with sliding time for sample 5 and sample 10;
fig. 7 shows the change of the friction coefficient with sliding time of sample 11.
Detailed Description
Various exemplary embodiments of the invention will now be described in detail, which should not be considered as limiting the invention, but rather as more detailed descriptions of certain aspects, features and embodiments of the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In addition, for numerical ranges in this disclosure, it is understood that each intermediate value between the upper and lower limits of the ranges is also specifically disclosed. Every smaller range between any stated value or stated range, and any other stated value or intermediate value within the stated range, is also encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless otherwise defined, 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. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the invention described herein without departing from the scope or spirit of the invention. Other embodiments will be apparent to those skilled in the art from consideration of the specification of the present invention. The specification and examples of the present invention are exemplary only.
As used herein, the terms "comprising," "including," "having," "containing," and the like are intended to be inclusive and mean an inclusion, but not limited to.
The embodiment of the invention provides a solid-oil composite super-lubrication system, wherein an epoxy resin coating with a double-layer structure is autonomously formed on the surface of a substrate by a solvent evaporation method, the thickness of the top layer is 0.1-5 mu m, and a liquid lubrication material is assembled on the surface of the epoxy resin coating to form the solid-oil composite super-lubrication system.
In the embodiment of the invention, the assembly comprises coating or soaking, and the assembly mode of the liquid lubricating material on the surface of the epoxy resin can be coating, spraying or soaking or other modes. The following examples all use a coating method based on the consideration of raw material saving.
The invention is based on the effective isolation of the self-formed double-layer structure epoxy resin coating to the friction pair and the abundant groups on the surface thereof, induces oil molecules to construct a stable oil film on the surface thereof, can form stronger lubrication synergistic effect with multiple types of base oil, can obviously reduce the friction coefficient of friction pair interfaces of steel-steel, steel-ceramic, steel-plastic and the like, and achieves an ultra-lubrication state and ultra-high wear-resistant service life. The preferable scheme is bisphenol A or bisphenol F type epoxy resin coating, and the composite lubricating effect of the epoxy resin coating and three base oils of synthetic polyol, silicone oil and synthetic ester base oil is optimal.
The liquid lubricating material in the embodiment of the invention comprises mineral oil, fully synthetic hydrocarbon base oil, synthetic polyol, synthetic polyether, synthetic ester base oil, silicone oil, vegetable oil or lubricating oil, and preferably polyol base oil, silicone oil and synthetic ester base oil.
Mineral oil in the embodiment of the invention is liquid paraffin or 150N;
the synthetic polyol comprises polyethylene glycol, polypropylene glycol or glycerol;
the synthetic polyether is polyethylene glycol monomethyl ether;
the synthetic ester base oil is trimethylolpropane capryl caprate;
the vegetable oil is castor oil.
The preparation method of the epoxy resin coating in the embodiment of the invention comprises the following steps:
mixing epoxy resin monomer with curing agent, ultrasonically dissolving in organic solvent, forming a coating on the surface of a substrate by spraying or dipping, and baking in an atmospheric environment at 40-200 ℃ to obtain an epoxy resin coating;
the thickness of the epoxy coating is less than 500 μm.
For example, in an embodiment of the present invention, the method for preparing the epoxy resin coating may be:
(1) Respectively ultrasonically cleaning a stainless steel substrate by using absolute ethyl alcohol and acetone, and drying for later use;
(2) Dissolving an epoxy resin monomer and a curing agent in an organic solvent by ultrasonic to obtain a solution, and controlling the mass ratio of the epoxy resin monomer to the curing agent to be 1:3-3:1;
(3) The preparation method of the coating adopts a solvent evaporation method, the solution with well ultrasonic dispersion is stirred, and then the stirred solution is dripped on the surface of the stainless steel substrate;
(4) And (3) baking the stainless steel sample with the solution dropwise in an atmospheric environment at 40-200 ℃ for 12 hours to fully evaporate the solvent and fully solidify the epoxy resin coating, and controlling the thickness of the coating to be lower than 500 mu m by adjusting the amount of the dropwise solution.
The mass ratio of the epoxy resin monomer to the curing agent in the embodiment of the invention is 1:3-3:1;
the epoxy resin monomer comprises one of bisphenol A type epoxy resin, bisphenol F type epoxy resin, polyphenol type glycidyl ether epoxy resin, alicyclic glycidyl ether epoxy resin and glycidyl ester type epoxy resin, and preferably bisphenol A type epoxy resin or bisphenol F type epoxy resin;
the curing agent comprises an amine curing agent, a pyridine curing agent and an anhydride curing agent;
the organic solvent is common organic solvents such as n-butanol, ethanol or toluene.
The curing agent in embodiments of the present invention includes ethylenediamine, diphenylamine, dapsone, polyamide 650, polyimide, polyether ammonia, polyazelaic anhydride, phthalic anhydride, dodecenyl succinic anhydride, polyvinylpyridine, or aminopyridine.
The embodiment of the invention provides a method for reducing friction coefficient of a friction fit auxiliary interface, which comprises the following steps: and forming an epoxy resin coating on the surface of the matrix, and assembling the liquid lubricating material on the surface of the epoxy resin coating.
For example, in an embodiment of the present invention, the method for reducing the friction coefficient of the friction fit sub-interface may be: forming an epoxy resin coating on the surface of the substrate, selecting silicone oil with the viscosity of 10-2000cst, and coating the silicone oil on the surface of the epoxy resin coating.
The invention adopts a solid-oil composite lubrication mode, wherein 'solid' refers to an epoxy resin coating, and 'oil' refers to common base lubricating oil, and comprises mineral oil (such as liquid paraffin or 150N), total synthetic hydrocarbon base oil (such as Poly Alpha Olefin (PAO)), synthetic polyether (polyethylene glycol monomethyl ether), synthetic polyalcohol (such as polyethylene glycol, polyethylene glycol monomethyl ether, polypropylene glycol and polypropylene glycol)Glycerol, etc.), synthetic ester base oil (such as trimethylolpropane capryl caprate), vegetable oil, silicone oil, etc., and suitable environment including nitrogen, air, and medium and low vacuum environment (vacuum degree higher than 10) -3 Pa)。
The basic coating of the invention is an epoxy resin-based coating, namely the main component of the coating is epoxy resin, and the coating has an autonomously formed double-layer structure. At the same time, the same effect is achieved by using an inorganic or organic modified epoxy resin coating, such as an inorganic reinforcing filler, e.g., silica, zinc oxide, titanium oxide, graphene or carbon nanotubes, etc. reinforcing modified epoxy coating.
The curing agent of the epoxy resin comprises mainly amine, pyridine, anhydride or silane coupling agent curing agents, such as ethylenediamine, diphenylamine, dapsone, polyamide 650, polyimide, polyether ammonia, polyazelaic anhydride, phthalic anhydride, dodecenyl succinic anhydride, polyvinylpyridine, aminopyridine, KH550 or KH560 silane coupling agent and the like.
The embodiment of the invention provides an application of a solid-oil composite super-lubrication system in the field of super lubrication.
In embodiments of the invention, the solid-oil composite super-lubrication system is used for surface lubrication protection of mechanical parts that are frequently started and stopped at medium and low speeds, such as wind power transmission parts, elevator transmissions, and revolving door bearing parts.
In the embodiment of the invention, the solid-oil composite super-lubrication system is used for antifriction and antiwear modification of bearing component interfaces of different materials, such as steel-steel, steel-ceramic and steel-plastic interfaces, and the friction coefficient of the steel-steel, steel-ceramic and steel-plastic friction fit auxiliary interfaces is reduced.
Example 1
(1) Respectively ultrasonically cleaning a stainless steel substrate with polished surfaces by absolute ethyl alcohol and acetone, and drying for later use;
(2) 3g of bisphenol A epoxy resin monomer DGEBA and 3g of curing agent polyamide 650 are dissolved in n-butanol by ultrasonic, namely the mass ratio of the epoxy resin monomer to the curing agent is 1:1;
(3) 1mL of the ultrasonic solution is dripped on the surface of a stainless steel substrate, and the solvent is evaporated in the environment of 60 ℃;
(4) Baking the coating for 12 hours in an atmospheric environment at 100 ℃ to fully cure the epoxy resin coating;
(5) 0.05mL of silicone oil was applied to the surface of the epoxy resin coating prepared above, and this was designated as sample 1.
Example 2
The procedure of example 1 was repeated except that 0.05mL of PAO lubricant was applied to the surface of the epoxy resin coating in step (5), designated as sample 2.
Example 3
The procedure of example 1 was repeated except that 0.05mL of liquid paraffin (nonpolar) was applied to the surface of the epoxy resin coating layer in step (5), which was designated as sample 3.
Example 4
The procedure of example 1 was repeated except that 0.05mL of polyethylene glycol (polarity) was applied to the epoxy resin coated surface in step (5), designated as sample 4.
Example 5
The procedure of example 1 was repeated except that 0.05mL of trimethylolpropane caprylate was applied to the surface of the epoxy resin coating in step (5), designated as sample 5.
Example 6
In contrast to example 1, silicone oil was directly applied to the surface of a stainless steel substrate by the following method:
(1) Respectively ultrasonically cleaning a stainless steel substrate with polished surfaces by absolute ethyl alcohol and acetone, and drying for later use;
(2) 0.05mL of silicone oil was applied to the surface of the stainless steel substrate, designated sample 6.
Example 7
In contrast to example 2, the PAO lubricant was directly applied to the stainless steel substrate surface as follows:
(1) Respectively ultrasonically cleaning a stainless steel substrate with polished surfaces by absolute ethyl alcohol and acetone, and drying for later use;
(2) 0.05mL of PAO lubricant was applied to the surface of the stainless steel substrate, designated sample 7.
Example 8
In contrast to example 3, liquid paraffin was directly applied to the surface of a stainless steel substrate by the following method:
(1) Respectively ultrasonically cleaning a stainless steel substrate with polished surfaces by absolute ethyl alcohol and acetone, and drying for later use;
(2) 0.05mL of liquid paraffin was applied to the surface of the stainless steel substrate, and this was designated as sample 8.
Example 9
In contrast to example 4, polyethylene glycol was directly coated on the surface of a stainless steel substrate by the following method:
(1) Respectively ultrasonically cleaning a stainless steel substrate with polished surfaces by absolute ethyl alcohol and acetone, and drying for later use;
(2) 0.05mL of polyethylene glycol was coated on the surface of the stainless steel substrate, designated as sample 9.
Example 10
In contrast to example 5, trimethylolpropane caprylate was directly applied to the surface of a stainless steel substrate by the following method:
(1) Respectively ultrasonically cleaning a stainless steel substrate with polished surfaces by absolute ethyl alcohol and acetone, and drying for later use;
(2) 0.05mL of trimethylolpropane caprylate was applied to the surface of the stainless steel substrate, designated sample 10.
Example 11
(1) Respectively ultrasonically cleaning a stainless steel substrate with polished surfaces by absolute ethyl alcohol and acetone, and drying for later use;
(2) 3g of bisphenol A epoxy resin monomer DGEBA and 3g of curing agent polyamide 650 are dissolved in n-butanol by ultrasonic, namely the mass ratio of the epoxy resin monomer to the curing agent is 1:1;
(3) Spraying 80g of the solution obtained in the step (2) on the surface of the stainless steel substrate in a nitrogen atmosphere by utilizing a high-pressure gun, and controlling the thickness of the coating to be 100 mu m by adjusting the spraying time;
(4) The coating was baked at 100 ℃ for 12 hours in an atmospheric environment to fully cure the epoxy resin coating, resulting in an uncoated epoxy resin coating, designated sample 11.
Sample testing: the friction coefficient and the wear resistance of a sample are tested in the atmosphere (humidity is 10-90%) by using an environment-controllable friction wear instrument and adopting a ball-disc contact mode, and the test parameters are as follows: load: 2N; speed of: 0.05-0.15m/s; sliding mode: a rotary type; the sliding time is 40-60min; the counter-grinding materials are bearing steel balls (CCr 15), silicon nitride balls and aluminum oxide balls with the diameter of 6 mm.
The test results in the atmosphere are shown in fig. 2-7, after the same amount of lubricating oil is added dropwise, the friction coefficient of the surface of the epoxy resin coating is below 0.01 (the average friction coefficient of fig. 3 is 0.009), which is far lower than that of a blank steel sheet without the coating, the super-lubrication level is achieved, and the wear-resisting life reaches the level of millions. As shown in fig. 7, the oil-free coated epoxy had a coefficient of friction as high as 0.7, which is more than 70 times that of the oil-coated epoxy coating sample. Therefore, comparing the friction coefficients of the three samples, namely the oil coated steel sheet, the oil coated epoxy resin coating and the oil free epoxy resin coating, it can be seen that the epoxy resin coating and the oil have a remarkable synergistic antifriction effect.
Example 12
The difference from example 1 is only that: the epoxy resin monomer in the step (2) is bisphenol A epoxy resin, the curing agent is polyamide 650, and the mass ratio of the epoxy resin monomer to the curing agent is 3:1; the base oil in the step (5) is liquid paraffin, and the coating amount of the base oil is 10 mu L.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.015, and the abrasion resistance life reaches millions of times.
Example 13
The difference from example 1 is only that: the epoxy resin monomer in the step (2) is bisphenol A epoxy resin, the curing agent is polyamide 650, and the mass ratio of the epoxy resin monomer to the curing agent is 1:3; the base oil in the step (5) is liquid paraffin, and the coating amount is 10 mu L.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.012, and the abrasion resistance life reaches millions.
Example 14
The difference from example 1 is only that: the epoxy resin monomer in the step (2) is bisphenol A epoxy resin, the curing agent is polyamide 650, and the mass ratio of the epoxy resin monomer to the curing agent is 1:2; the base oil in the step (5) is liquid paraffin, and the coating amount is 10 mu L.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.011, and the abrasion resistance life reaches millions of times.
Example 15
The difference from example 1 is only that: the epoxy resin monomer in the step (2) is bisphenol A epoxy resin, the curing agent is polyamide 650, and the mass ratio of the epoxy resin monomer to the curing agent is 1:1; the base oil in the step (5) is liquid paraffin, and the coating amount is 10 mu L.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.009, and the abrasion resistance life reaches millions of times.
Example 16
The difference from example 1 is only that: the epoxy resin monomer in the step (2) is bisphenol F epoxy resin, the curing agent is polyamide 650, and the mass ratio of the epoxy resin monomer to the curing agent is 1:3; the thickness of the coating in the step (3) is 400 mu m; the base oil in the step (5) is liquid paraffin, and the coating amount is 10 mu L.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.016, and the abrasion resistance life reaches millions of times.
Example 17
The difference from example 1 is only that: the epoxy resin monomer in the step (2) is bisphenol F epoxy resin, the curing agent is polyamide 650, and the mass ratio of the epoxy resin monomer to the curing agent is 1:2; the thickness of the coating in the step (3) is 300 mu m; the base oil in the step (5) is liquid paraffin, and the coating amount is 10 mu L.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.013, and the abrasion resistance life reaches millions of times.
Example 18
The difference from example 1 is only that: the epoxy resin monomer in the step (2) is bisphenol F epoxy resin, the curing agent is polyamide 650, and the mass ratio of the epoxy resin monomer to the curing agent is 1:1; the thickness of the coating in the step (3) is 200 mu m; the base oil in the step (5) is liquid paraffin, and the coating amount is 10 mu L.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.009, and the abrasion resistance life reaches millions of times.
Example 19
The difference from example 1 is only that: the epoxy resin monomer in the step (2) is 3.4-epoxycyclohexylmethyl-3.4-epoxycyclohexylformate, the curing agent is polyamide 650, and the mass ratio of the epoxy resin monomer to the curing agent is 1:1; the base oil in the step (5) is liquid paraffin, and the coating amount is 10 mu L.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.015, and the abrasion resistance life reaches millions of times.
Example 20
The difference from example 1 is only that: the epoxy resin monomer in the step (2) is 3.4-epoxycyclohexylmethyl-3.4-epoxycyclohexylformate, the curing agent is polyamide 650, and the mass ratio of the epoxy resin monomer to the curing agent is 1:1; the thickness of the coating in the step (3) is 200 mu m; the base oil in step (5) was PEG200 and the coating amount was 10. Mu.L.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.004, and the abrasion resistance life reaches the level of millions.
Example 21
The difference from example 1 is only that: the base oil in step (5) was polypropylene glycol and the coating amount was 10. Mu.L.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.009, and the abrasion resistance life reaches millions of times.
Example 22
The difference from example 1 is only that: the base oil in step (5) was castor oil and the coating amount was 10 μl.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.01, and the abrasion resistance life reaches millions of times.
Example 23
The difference from example 1 is only that: the base oil in the step (5) is alkyl naphthalene, and the coating amount is 10 mu L.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.014, and the abrasion resistance life reaches millions.
Example 24
The difference from example 1 is only that: the base oil in the step (5) is glycerol, and the coating amount is 10 mu L.
The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.002, and the abrasion resistance life reaches millions of times.
Example 25
The difference from example 1 is only that: in the step (5), the base oil is polyethylene glycol monomethyl ether, and the coating amount is 10 mu L. The friction coefficient and the abrasion resistance performance test process are the same as those of samples 1-11, and the friction coefficient of the solid-oil composite super-lubrication system in the embodiment in the atmosphere environment can be as low as 0.009, and the abrasion resistance life reaches millions of times.
Examples 26 to 36
The difference from example 15 is only that the base oil applied in step (5) is different, see in particular table 1.
Using an environment-controllable frictional wear apparatus, using a ball-disc contact method, in a dry nitrogen atmosphere and a vacuum atmosphere (vacuum degree 1.0×10 -2 Pa) coefficient of friction and wear resistance of the test specimens, test parameters: load: 2N; speed of: 0.05-0.15m/s; sliding mode: a rotary type; the sliding time is 40-360min; the friction coefficients of the solid-oil composite super-lubrication systems of examples 26-36 for bearing steel balls (CCr 15), silicon nitride balls and aluminum oxide balls with a grinding material of 6mm are shown in table 1 (friction coefficient 1 corresponds to dry nitrogen and friction coefficient 2 corresponds to 1 x 10) -2 Pa vacuum).
TABLE 1
From the above examples, it can be seen that the present invention provides a solid-oil composite super-lubrication system, which realizes super-lubrication performance through the synergistic effect of the epoxy resin coating and different types of base oils, especially the friction coefficient of composite lubrication with synthetic alcohol base oils can be as low as 0.001, which is two orders of magnitude lower than that of the friction coefficient without the coating, and the friction pair is close to the zero abrasion state.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (10)
1. A solid-oil composite super-lubrication system is characterized in that an epoxy resin coating with a double-layer structure is autonomously formed on the surface of a substrate by a solvent evaporation method, the thickness of the top layer is 0.1-5 mu m, and a liquid lubrication material is assembled on the surface of the epoxy resin coating to form the solid-oil composite super-lubrication system.
2. The solid-oil composite super-lubrication system of claim 1, wherein the liquid lubricating material comprises mineral oil, fully synthetic hydrocarbon base oil, synthetic polyol, synthetic polyether, synthetic ester base oil, silicone oil, vegetable oil or lubricating oil.
3. The solid-oil composite super-lubrication system of claim 2, wherein said mineral oil comprises liquid paraffin or 150N;
the total synthetic hydrocarbon base oil is poly alpha olefin or alkyl naphthalene;
the synthetic polyol comprises polyethylene glycol, polypropylene glycol or glycerol;
the synthetic polyether is polyethylene glycol monomethyl ether;
the synthetic ester base oil is trimethylolpropane capryl caprate;
the vegetable oil is castor oil.
4. The solid-oil composite super-lubrication system according to claim 1, wherein the preparation method of the epoxy resin coating comprises the following steps:
mixing an epoxy resin monomer with a curing agent, ultrasonically dissolving the mixture in an organic solvent, forming a coating on the surface of a substrate by a solvent evaporation method, and baking the substrate in an atmospheric environment at 40-200 ℃ to obtain an epoxy resin coating with a double-layer structure;
the thickness of the epoxy coating is less than 500 μm.
5. The solid-oil composite super-lubrication system according to claim 4, wherein the mass ratio of the epoxy resin monomer to the curing agent is 1:3-3:1;
the epoxy resin monomer comprises one of bisphenol A epoxy resin, bisphenol F epoxy resin, polyphenol type glycidyl ether epoxy resin, alicyclic glycidyl ether epoxy resin and glycidyl ester type epoxy resin;
the curing agent comprises an amine curing agent, a pyridine curing agent and an anhydride curing agent;
the organic solvent comprises n-butanol, ethanol or toluene.
6. The solid-oil composite super-lubrication system according to claim 5, wherein the curing agent comprises ethylenediamine, diphenylamine, dapsone, polyamide 650, polyimide, polyether ammonia, polyazelaic anhydride, phthalic anhydride, dodecenyl succinic anhydride, polyvinylpyridine, aminopyridine, KH550 or KH560 silane coupling agent.
7. The method for reducing the friction coefficient of the friction fit auxiliary interface is characterized by comprising the following steps of: and forming an epoxy resin coating on the surface of the matrix, and assembling the liquid lubricating material on the surface of the epoxy resin coating.
8. Use of the solid-oil composite super-lubrication system according to any one of claims 1 to 6 in the field of super lubrication.
9. The application of claim 8, wherein the solid-oil composite super-lubrication system is used for lubrication protection of the surface of a mechanical part frequently started and stopped at a medium-low speed or for antifriction and antiwear modification of the interface of bearing parts made of different materials.
10. The use according to claim 8, characterized in that the solid-oil composite super-lubrication system is used for lubrication of mechanical equipment in air, nitrogen and vacuum environments.
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| CN116790304B (en) | 2024-05-14 |
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