CN114149852A - Gear lubricant and preparation method thereof - Google Patents
Gear lubricant and preparation method thereof Download PDFInfo
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- CN114149852A CN114149852A CN202111481268.8A CN202111481268A CN114149852A CN 114149852 A CN114149852 A CN 114149852A CN 202111481268 A CN202111481268 A CN 202111481268A CN 114149852 A CN114149852 A CN 114149852A
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- gear lubricant
- additive
- base oil
- gear
- lubricant
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- 239000000314 lubricant Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title description 6
- 239000002199 base oil Substances 0.000 claims abstract description 32
- 239000000654 additive Substances 0.000 claims abstract description 29
- 230000000996 additive effect Effects 0.000 claims abstract description 29
- 150000002148 esters Chemical class 0.000 claims abstract description 26
- 239000004164 Wax ester Substances 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 21
- 229910017464 nitrogen compound Inorganic materials 0.000 claims abstract description 21
- 235000019386 wax ester Nutrition 0.000 claims abstract description 21
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 20
- 239000008158 vegetable oil Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 7
- 239000003879 lubricant additive Substances 0.000 claims abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011593 sulfur Substances 0.000 claims abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- 239000011574 phosphorus Substances 0.000 claims abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical class OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 3
- 150000002830 nitrogen compounds Chemical class 0.000 claims abstract description 3
- -1 phosphorus compound Chemical class 0.000 claims description 28
- 230000001050 lubricating effect Effects 0.000 claims description 27
- 239000003963 antioxidant agent Substances 0.000 claims description 21
- 230000003078 antioxidant effect Effects 0.000 claims description 19
- BFZUFHPKKNHSAG-UHFFFAOYSA-N [N].[P].[S] Chemical compound [N].[P].[S] BFZUFHPKKNHSAG-UHFFFAOYSA-N 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 18
- JJJPTTANZGDADF-UHFFFAOYSA-N thiadiazole-4-thiol Chemical class SC1=CSN=N1 JJJPTTANZGDADF-UHFFFAOYSA-N 0.000 claims description 18
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000002401 inhibitory effect Effects 0.000 claims description 4
- 125000005270 trialkylamine group Chemical group 0.000 claims description 4
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 3
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- BWZZMXQDTQSJAW-UHFFFAOYSA-N OOP(OO)(OO)=S Chemical compound OOP(OO)(OO)=S BWZZMXQDTQSJAW-UHFFFAOYSA-N 0.000 claims description 2
- 239000012990 dithiocarbamate Substances 0.000 claims description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000001934 delay Effects 0.000 abstract 1
- 239000004327 boric acid Substances 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 14
- RMKNTZWZQFIOOB-UHFFFAOYSA-N n-butyl-2-octyl-n-phenylaniline Chemical compound CCCCCCCCC1=CC=CC=C1N(CCCC)C1=CC=CC=C1 RMKNTZWZQFIOOB-UHFFFAOYSA-N 0.000 description 13
- 239000002270 dispersing agent Substances 0.000 description 11
- 125000006832 (C1-C10) alkylene group Chemical group 0.000 description 4
- 125000001183 hydrocarbyl group Chemical group 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 235000019198 oils Nutrition 0.000 description 4
- 125000005702 oxyalkylene group Chemical group 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- RYYWUUFWQRZTIU-UHFFFAOYSA-N Thiophosphoric acid Chemical compound OP(O)(S)=O RYYWUUFWQRZTIU-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000002252 acyl group Chemical group 0.000 description 2
- 125000004423 acyloxy group Chemical group 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 125000000732 arylene group Chemical group 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 150000004659 dithiocarbamates Chemical class 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 125000001841 imino group Chemical group [H]N=* 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 150000004867 thiadiazoles Chemical class 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000007787 solid 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/045—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution and non-macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/2805—Esters used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/40—Fatty vegetable or animal oils
- C10M2207/401—Fatty vegetable or animal oils 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
- C10M2219/106—Thiadiazoles
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/047—Thioderivatives not containing metallic elements
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a gear lubricant. The gear lubricant comprises the following components: base oil, lubricant additive and antirust additive; the base oil is a mixture of composite ester and sulfurized vegetable oil wax ester; the lubricant additive is a mixture of sulfur, phosphorus and nitrogen compounds and boric acid esters. The gear lubricant can greatly improve the lubricity, can effectively protect the tooth surface, delays the abrasion of the gear, and can strengthen the protection and repair of the gear under the high-temperature oxidation condition, so that the gear cannot be pulled when in use.
Description
Technical Field
The invention relates to the technical field of lubricating oil, in particular to a gear lubricant and a preparation method thereof.
Background
At present, a plurality of gear lubricants for the open type large gear on the market are provided, most of the gear lubricants contain solid fillers, and the problems of insufficient oil film, tooth surface strain, abrasion, pitting corrosion, running noise and the like can occur in the using process. Once the tooth surface is strained, abnormal noise is generated during operation, great cost is required for flattening the tooth surface, and great loss is caused by the shutdown caused by the method.
Disclosure of Invention
Based on this, the present invention is necessary to provide a gear lubricant.
The invention also provides a preparation method of the gear lubricant.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
a gear lubricant comprising the following components: base oil, lubricant additive and antirust additive; the base oil is a mixture of composite ester and sulfurized vegetable oil wax ester; the lubricant additive is a mixture of sulfur, phosphorus and nitrogen compounds and boric acid esters.
The gear lubricant is prepared by compounding and combining the composite ester base oil and the special lubricating additive, the composite ester can form a thick oil film between friction pairs of the gear, which is very critical to the lubricating effect, and the compound containing the polar group is easier to adsorb on a friction interface to form an effective tough oil film; the vulcanized vegetable oil wax ester is an excellent lubricating substance, and forms the matching of natural and artificial lubricants with the composite ester, so that the natural and artificial lubricants are not mutually exclusive and can generate a better lubricating effect at lower manufacturing cost; the sulfur-phosphorus nitrogen compound and the boric acid ester have no high lubricity when used alone, but can effectively protect the tooth surface, delay the abrasion of the gear and strengthen the protection and repair of the gear under the high-temperature oxidation condition, so that the gear cannot be strained when in use.
In some of these embodiments, the sulfur and phosphorus compounds and borate esters are present in a ratio of 1: 1-2 by mass ratio.
In some embodiments, the sulfur-phosphorus-nitrogen compound is one or a mixture of trialkyl amine, trihydroxy thiophosphate, thiadiazole compound and dithiocarbamate compound.
In some of these embodiments, the rust inhibiting additive is a mercaptothiadiazole derivative.
In some of these embodiments, the antioxidant is an amine-type or a phenol-type antioxidant.
In some embodiments, the antioxidant is one or a mixture of octyl butyl diphenylamine, 2, 6-di-tert-butyl-p-cresol and Ciba IRGANOX phenol type antioxidant.
In some of these embodiments, the base oil is a complex ester with a sulfurized vegetable oil wax ester in a ratio of 1: mixing the obtained mixture in a mass ratio of 0.8-1.5.
In some embodiments, the gear lubricant comprises the following components in parts by weight: 2 to 10 percent of lubricating additive, 1.5 to 10 percent of antirust additive and the balance of base oil.
In some embodiments, the gear lubricant comprises the following components in parts by weight: lubricating and adding 2-10%, antirust additive 1.5-10%, antioxidant 0.2-1.8% and base oil in balance.
The invention also provides a preparation method of the gear lubricant, which comprises the following steps:
heating the base oil at 80-100 ℃, then taking part of the base oil into a blending container, and cooling to 60-70 ℃;
adding a lubricating additive and an antirust additive into the blending container, and stirring and blending for 0.5-1 h;
adding the rest base oil into the blending container, and blending for 2-4 h at 70-80 ℃.
In some embodiments, the base oil is heated at 80-100 ℃ for 0.1-1 h.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
A gear lubricant comprising the following components: the base oil is a mixture of compound ester and sulfurized vegetable oil wax ester, and the lubricating additive is a mixture of sulfur-phosphorus-nitrogen compound and boric acid ester.
The composite ester is prepared by esterifying dibasic acid and dibasic alcohol into long-chain molecules, esterifying alcohol or acid at the end group to obtain a product with high viscosity and containing various forms of oxygen atoms such as carbonyl oxygen and alcohol oxygen, and the like; the vulcanized vegetable oil wax ester is a vulcanized product prepared from natural wax ester, is an excellent lubricating substance, forms the matching of natural and artificial lubricants with the composite ester, is not mutually exclusive, and can generate a better lubricating effect at lower manufacturing cost; the sulfur-phosphorus nitrogen compound is one or a mixture of more than two of trialkylamines, thiophosphoric acid trihydroxy esters, thiadiazole compounds or dithiocarbamate compounds, the compounds are matched with the composite ester, the tooth surface can be effectively protected, the abrasion of the gear is delayed, and the boric acid ester can ensure the protection and repair of the gear under the high-temperature oxidation condition, so that the gear cannot be strained when in use.
In one embodiment, the sulfur phosphorus nitrogen compound and borate ester is present in a ratio of 1: 1-2 by mass ratio. The proportion can be matched with the compound ester base oil to achieve better lubricating effect.
Wherein the sulfur-phosphorus-nitrogen compound is one or a mixture of more of trialkylamines, thiophosphoric acid trihydroxy esters, thiadiazole compounds and dithiocarbamate compounds.
The antirust additive is a mercapto thiadiazole derivative. The mercapto thiadiazole derivative is a 1,3, 4-mercapto thiadiazole dimer derivative, and can form a mercapto thiadiazole protective coating on the surface of a lubricating part to achieve the effects of corrosion prevention and rust prevention.
Further, the gear lubricant further comprises an antioxidant.
The antioxidant is a mixture of amine antioxidant and phenol antioxidant. The amine antioxidant is a high-temperature antioxidant with excellent performance, has the characteristics of good thermal stability, outstanding oxidation resistance under high-temperature conditions and good oil solubility, is compatible with the phenol antioxidant for use, is combined with the composite ester, and can exert better high-temperature oxidation resistance.
In one embodiment, the amine antioxidant is a ketoamine trimethyl dihydroquinoline oligomer; the phenolic antioxidant is high molecular weight phenolic ester. The two antioxidants have good compatibility and good high-temperature oxidation resistance.
In one embodiment, the base oil is a complex ester with a sulfurized vegetable oil wax ester in a ratio of 1: mixing the obtained mixture in a mass ratio of 0.8-1.5.
In one embodiment, the gear lubricant further comprises a dispersant comprising units of the formula: ((QTt) vJj) u wherein Q is a group selected from one molecule of an alkyl carboxylic acid and an alkyl phenol, T is an acyl group, an acyloxy group, an oxyalkylene group, an arylene group or an imino group and J is a condensed polyamine group of the formula: wherein R is independently hydrogen or hydrocarbyl, R1 is hydrogen, alkyl or NH2R ' (NR ') Y-wherein Y is 1 to 6 and R ' is C1 to C10 alkylene, Y represents S, N or O; x is an alkylene group of at least one carbon atom; a is a hydrocarbyl group; z is a C1-C10 alkylene group, a C1-C10 oxyalkylene group or a heterocycle containing at least one nitrogen atom, u is an integer greater than 1, n is 0 or 1, q is 1 and m is 2 or 3. The base oil and the additive are matched with the dispersant, so that the lubricant is uniform and has good thermal stability.
In one embodiment, the gear lubricant comprises the following components in parts by weight: 2 to 10 percent of lubricating additive, 1.5 to 10 percent of antirust additive and the balance of base oil.
Still further, the gear lubricant comprises the following components in parts by weight: lubricating and adding 2-10%, antirust additive 1.5-10%, antioxidant 0.2-1.8% and base oil in balance.
Still further, the gear lubricant comprises the following components in parts by weight: lubricating additive 2-10 wt%, antirust additive 1.5-10 wt%, antioxidant 0.2-1.8 wt%, dispersant 0.5-1 wt% and base oil for the rest. The dispersant is the above-mentioned specific dispersant.
The invention also provides a preparation method of the gear lubricant, which comprises the following steps:
heating the base oil at 80-100 ℃, then taking part of the base oil into a blending container, and cooling to 60-70 ℃;
adding a lubricating additive and an antirust additive into the blending container, and stirring and blending for 0.5-1 h;
adding the rest base oil into the blending container, and blending for 2-4 h at 70-80 ℃.
Embodiments of the present invention will be further illustrated by the following examples.
Example one
The gear lubricant disclosed by the embodiment comprises the following components in parts by weight: 40% of composite ester, 48% of vulcanized vegetable oil wax ester, 3% of sulfur-phosphorus nitrogen compound, 3% of boric acid ester, 5% of mercaptothiadiazole derivative and 1% of octyl butyl diphenylamine.
Example two
The gear lubricant disclosed by the embodiment comprises the following components in parts by weight: 49% of composite ester, 39% of vulcanized vegetable oil wax ester, 3% of sulfur-phosphorus nitrogen compound, 3% of boric acid ester, 5% of mercaptothiadiazole derivative, 0.4% of octyl butyl diphenylamine and 0.6% of 2, 6-di-tert-butyl-p-cresol.
EXAMPLE III
The gear lubricant disclosed by the embodiment comprises the following components in parts by weight: 35.2% of composite ester, 52.8% of vulcanized vegetable oil wax ester, 2% of sulfur-phosphorus nitrogen compound, 4% of boric acid ester, 5% of mercaptothiadiazole derivative and 1% of octyl butyl diphenylamine.
Example four
The gear lubricant disclosed by the embodiment comprises the following components in parts by weight: 40% of composite ester, 48.3% of vulcanized vegetable oil wax ester, 5% of sulfur-phosphorus nitrogen compound, 5% of boric acid ester, 1.5% of mercaptothiadiazole derivative and 0.2% of octyl butyl diphenylamine.
EXAMPLE five
The gear lubricant disclosed by the embodiment comprises the following components in parts by weight: 40% of composite ester, 47% of vulcanized vegetable oil wax ester, 3% of sulfur-phosphorus nitrogen compound, 3% of boric acid ester, 4.2% of mercaptothiadiazole derivative, 1.8% of octyl butyl diphenylamine and 1% of dispersant.
EXAMPLE six
The gear lubricant disclosed by the embodiment comprises the following components in parts by weight: 40% of composite ester, 48% of vulcanized vegetable oil wax ester, 3% of sulfur-phosphorus nitrogen compound, 3% of boric acid ester, 5% of mercaptothiadiazole derivative, 0.5% of octyl butyl diphenylamine and 0.5% of dispersant.
EXAMPLE seven
The gear lubricant disclosed by the embodiment comprises the following components in parts by weight: 40% of composite ester, 48% of vulcanized vegetable oil wax ester, 3% of sulfur-phosphorus nitrogen compound, 3% of boric acid ester, 5% of mercaptothiadiazole derivative, 0.2% of octyl butyl diphenylamine and 0.8% of dispersant.
Comparative example 1
The comparative example provides a gear lubricant consisting of the following components in parts by weight: 88% of composite ester, 3% of sulfur-phosphorus nitrogen compound, 3% of boric acid ester, 5% of mercaptothiadiazole derivative and 1% of octyl butyl diphenylamine.
Comparative example No. two
The comparative example provides a gear lubricant consisting of the following components in parts by weight: 88% of vulcanized vegetable oil wax ester, 3% of sulfur-phosphorus nitrogen compound, 3% of boric acid ester, 5% of mercaptothiadiazole derivative and 1% of octyl butyl diphenylamine.
Comparative example No. three
The comparative example provides a gear lubricant consisting of the following components in parts by weight: 40% of composite ester, 48% of vulcanized vegetable oil wax ester, 6% of sulfur-phosphorus nitrogen compound, 5% of mercaptothiadiazole derivative and 1% of octyl butyl diphenylamine.
Comparative example No. four
The comparative example provides a gear lubricant consisting of the following components in parts by weight: 40% of composite ester, 48% of vulcanized vegetable oil wax ester, 6% of boric acid ester, 5% of mercaptothiadiazole derivative and 1% of octyl butyl diphenylamine.
Comparative example five
The comparative example provides a gear lubricant consisting of the following components in parts by weight: 40% of composite ester, 48% of vulcanized vegetable oil wax ester, 3% of sulfur-phosphorus nitrogen compound, 3% of boric acid ester, 5% of mercaptothiadiazole derivative, 0.5% of octyl butyl diphenylamine and 0.5% of dispersant. The dispersant contains units of the formula: ((QTt) vJj) u wherein Q is a group selected from one molecule of an alkyl carboxylic acid and an alkyl phenol, T is an acyl group, an acyloxy group, an oxyalkylene group, an arylene group or an imino group and J is a condensed polyamine group of the formula: wherein R is independently hydrogen or hydrocarbyl, R1 is hydrogen, alkyl or NH2R ' (NR ') Y-wherein Y is 1 to 6 and R ' is C1 to C10 alkylene, Y represents S, N or O; x is an alkylene group of at least one carbon atom; a is a hydrocarbyl group; z is a C1-C10 alkylene group, a C1-C10 oxyalkylene group or a heterocycle containing at least one nitrogen atom, u is an integer greater than 1, n is 0 or 1, q is 1 and m is 2 or 3.
The lubricating properties and rust inhibitive properties of the gear lubricants of the above examples and comparative examples will be compared below, and the experimental methods are as follows:
antirust performance: and testing by using the GB/T11143-2008 standard. Lubricating property: the NB/SH/T0189-2017 standard test is adopted.
The specific results are shown in the table I.
As can be seen from the above table, the lubricants of the examples are excellent in both rust inhibitive performance and lubricating performance. Wherein, the lubricating performance of each of the first and second comparative examples is reduced compared to that of each of the first and second examples in which only one base oil is used without using the complex base oil, and the lubricating performance of each of the third and fourth comparative examples in which one lubricating additive is used without using the complex lubricating additive is reduced compared to that of each of the third and fourth examples. The fifth comparative example adopts a specific dispersant, and the lubricating performance is superior to that of the first example.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A gear lubricant, comprising the following components:
base oil, lubricant additive and antirust additive; the base oil is a mixture of composite ester and sulfurized vegetable oil wax ester; the lubricant additive is a mixture of sulfur, phosphorus and nitrogen compounds and boric acid esters.
2. The gear lubricant of claim 1, wherein the sulfur phosphorus nitrogen compound and borate are present in a ratio of 1: 1-2 by mass ratio.
3. The gear lubricant of claim 2, wherein the sulfur and phosphorus compound is one or more of trialkyl amine, trihydroxy thiophosphate, thiadiazole compound, and dithiocarbamate compound.
4. The gear lubricant of claim 1, wherein the rust inhibiting additive is a mercaptothiadiazole derivative.
5. The gear lubricant of claim 1, wherein the antioxidant is an amine-type or a phenol-type antioxidant.
6. The gear lubricant of claim 5, wherein the antioxidant is one or a mixture of octylbutyldiphenylamine, 2, 6-di-tert-butyl-p-cresol, Ciba IRGANOX phenol type antioxidants.
7. The gear lubricant of claim 1, wherein the base oil is a complex ester with a sulfurized vegetable oil wax ester in a ratio of 1: mixing the obtained mixture in a mass ratio of 0.8-1.5.
8. Gear lubricant according to any of claims 1-7, characterized in that it comprises the following components in parts by weight: 2 to 10 percent of lubricating additive, 1.5 to 10 percent of antirust additive and the balance of base oil.
9. The gear lubricant of claim 8, wherein the gear lubricant comprises the following components in parts by weight: 2 to 10 percent of lubricating additive, 1.5 to 10 percent of antirust additive, 0.2 to 1.8 percent of antioxidant and the balance of base oil.
10. A method of preparing a gear lubricant according to any of claims 1 to 9, comprising the steps of:
heating the base oil at 80-100 ℃, then taking part of the base oil into a blending container, and cooling to 60-70 ℃;
adding a lubricating additive and an antirust additive into the blending container, and stirring and blending for 0.5-1 h;
adding the rest base oil into the blending container, and blending for 2-4 h at 70-80 ℃.
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| US20170218294A1 (en) * | 2014-08-06 | 2017-08-03 | The Lubrizol Corporation | Industrial Gear Lubricant Additive Package with Biodegradable Sulfur Component |
| CN112500909A (en) * | 2020-11-05 | 2021-03-16 | 上海应用技术大学 | Environment-friendly lubricating oil and preparation method thereof |
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| CN1039438A (en) * | 1988-07-19 | 1990-02-07 | 国际润滑剂公司 | Vegetable oil derivatives as slip additive |
| CN102031185A (en) * | 2010-12-30 | 2011-04-27 | 鞍山海华油脂化学有限公司 | Anti micro-pitting industrial gear oil composition |
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