CN113999722A - Environment-friendly gear lubricating oil - Google Patents
Environment-friendly gear lubricating oil Download PDFInfo
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- CN113999722A CN113999722A CN202111421542.2A CN202111421542A CN113999722A CN 113999722 A CN113999722 A CN 113999722A CN 202111421542 A CN202111421542 A CN 202111421542A CN 113999722 A CN113999722 A CN 113999722A
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- oil
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- lubricating oil
- polyol ester
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 32
- -1 neopentyl polyol ester Chemical class 0.000 claims abstract description 57
- 229920005862 polyol Polymers 0.000 claims abstract description 33
- 239000002199 base oil Substances 0.000 claims abstract description 30
- RCPLGIJKXUFPJR-UHFFFAOYSA-N 10-(6-methylheptoxy)-10-oxodecanoic acid Chemical compound CC(C)CCCCCOC(=O)CCCCCCCCC(O)=O RCPLGIJKXUFPJR-UHFFFAOYSA-N 0.000 claims abstract description 29
- SZRLKIKBPASKQH-UHFFFAOYSA-M dibutyldithiocarbamate Chemical compound CCCCN(C([S-])=S)CCCC SZRLKIKBPASKQH-UHFFFAOYSA-M 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000012964 benzotriazole Substances 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims 1
- 239000000654 additive Substances 0.000 description 22
- 239000003921 oil Substances 0.000 description 19
- 239000010699 lard oil Substances 0.000 description 10
- 230000000996 additive effect Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000003925 fat Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000010722 industrial gear oil Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000007866 anti-wear additive Substances 0.000 description 2
- 238000013528 artificial neural network Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 150000005690 diesters Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 239000010685 fatty oil Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- XMGQYMWWDOXHJM-UHFFFAOYSA-N limonene Chemical compound CC(=C)C1CCC(C)=CC1 XMGQYMWWDOXHJM-UHFFFAOYSA-N 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229940116351 sebacate Drugs 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000005069 Extreme pressure additive Substances 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- QCJQWJKKTGJDCM-UHFFFAOYSA-N [P].[S] Chemical compound [P].[S] QCJQWJKKTGJDCM-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- ZWYAVGUHWPLBGT-UHFFFAOYSA-N bis(6-methylheptyl) decanedioate Chemical compound CC(C)CCCCCOC(=O)CCCCCCCCC(=O)OCCCCCC(C)C ZWYAVGUHWPLBGT-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 239000010730 cutting oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004210 ether based solvent Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229940087305 limonene Drugs 0.000 description 1
- 235000001510 limonene Nutrition 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- KVNYFPKFSJIPBJ-UHFFFAOYSA-N ortho-diethylbenzene Natural products CCC1=CC=CC=C1CC KVNYFPKFSJIPBJ-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010731 rolling oil Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- 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
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
- C10M2207/2825—Esters of (cyclo)aliphatic oolycarboxylic acids used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
- C10M2207/2835—Esters of polyhydroxy compounds 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
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
-
- 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
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
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
Adding pentasulfide TDPS532 accounting for the percentage of mixed base oil mixed by neopentyl polyol ester and isooctyl sebacate according to the ratio of 1:1 into mixed base oil mixed by neopentyl polyol ester (NPE-3) and isooctyl sebacate according to the ratio of 1: 0-0.5%, extreme pressure antiwear agent T305: 0-0.336%, benzotriazole fatty amine salt T406E: 0-0.336%, dibutyl dithiocarbamate Rc 6340: 0-1.2%, lard cd-1: 0.05-1.805% of environment-friendly gear lubricating oil. The environment-friendly gear lubricating oil provided by the invention has better wear resistance and bearing performance.
Description
The application is a divisional application of ' an environment-friendly gear lubricating oil with additives such as polypentasulfide and lard added into neopentyl polyol ester and isooctyl sebacate ', which has the application date of 2016 (06, 24) and the application number of 201610467395.5 '.
Technical Field
The invention relates to the technical field of lubricating oil, in particular to environment-friendly gear lubricating oil.
Background
Gear transmission is one of the most important transmission modes in machinery. To avoid wear and damage to the gears during operation, it is necessary to separate their running surfaces with a lubricant (industrial gear oil) to maintain the ergonomics and extend the useful life of the gear mechanism. According to the relevant information, about 54% of mechanical failures are caused by lubrication problems, with insufficient and inappropriate lubrication accounting for 34.4% and 19.6%, respectively. The development of industrial gear oils has been dependent on improvements in the base oil processing depth and additive performance.
In the foreign early industrial gear oil, fatty oil is added into still residual oil or sulfurized fatty oil is added into distillate oil as an extreme pressure antiwear additive to improve the lubricity. By the end of the last 60 s, the first generation of sulfur-phosphorus type polar oils using sulfurized fats or limonene and phosphides as extreme pressure additives appeared. In the 70 s, people made great adjustment on the performance of oil, so that the oil product has certain characteristics to adapt to certain special mechanical requirements, a large amount of special oil appears, the variety of lubricating oil is changed from few to many, and the first oil product renewal period appears. At present, oil products are required to realize environmental protection and no pollution, and a new period of lubrication technology is marked.
Both base oils and additives are important components of finished lubricants. The traditional lubricating oil is prepared by adding additives into fractional oil serving as base oil, and the lubricating oil meets the use requirements in the past and also achieves remarkable effect on oil product development. However, since the fractionation is carried out by a series of physical processes, it is composed of a mixture of hydrocarbons having different molecular sizes and impurities containing nitrogen, sulfur, oxygen, etc. The lubricating oil has the advantages of large evaporation loss, high pour point, small viscosity index and impurity content, thereby influencing the high-low temperature bearing performance and the pressure-resistant and wear-resistant performance of the lubricating oil.
Disclosure of Invention
The invention aims to solve the technical problem of providing environment-friendly gear lubricating oil which has excellent high-low temperature bearing performance, pressure resistance and wear resistance and meets the lubricating performance of various automobile gear boxes, wherein the environment-friendly gear lubricating oil is formed by mixing neopentyl polyol ester (NPE-3) and isooctyl sebacate according to a ratio of 1:1.
The technical scheme is as follows:
a lubricating oil containing additives such as lard oil in a mixed base oil of neopentyl polyol ester (NPE-3) and isooctyl sebacate in a ratio of 1:1, wherein a pentasulfide TDPS 532: 0-0.5%, extreme pressure antiwear agent T305: 0.02-1.802%, benzotriazole fatty amine salt (T-406) T406E: 0-0.336%, dibutyl dithiocarbamate Rc 6340: 0-1.2%, lard cd-1: 0.05-1.805%, heating and mixing uniformly.
The formula is as follows:
the mixed base oil of neopentyl polyol ester (NPE-3) and isooctyl sebacate mixed according to the ratio of 1:1 is added with the following pentasulfide TDPS532 accounting for the percentage of the mixed base oil of neopentyl polyol ester and isooctyl sebacate mixed according to the ratio of 1: 0-0.5%, extreme pressure antiwear agent T305: 0.02-1.802%, benzotriazole fatty amine salt (T-406) T406E: 0-0.336%, dibutyl dithiocarbamate Rc 6340: 0-1.2%, lard cd-1: 0.05-1.805%.
The advantages are that:
the lubricating oil provided by the invention has improved lubricating performance and bearing capacity by adding additives such as lard oil and the like into the mixed base oil of neopentyl polyol ester (NPE-3) and isooctyl sebacate in a ratio of 1:1, and has better wear resistance and bearing performance.
Detailed Description
Example one
An environment-friendly gear lubricating oil containing additives such as lard oil containing pentasulfide and the like in mixed base oil of neopentyl polyol ester (NPE-3) and isooctyl sebacate mixed according to a ratio of 1:1 is prepared by adding a lubricating oil additive accounting for the percentage of the mixed base oil of the neopentyl polyol ester (NPE-3) and the isooctyl sebacate mixed according to a ratio of 1:1 into the mixed base oil of the neopentyl polyol ester (NPE-3) and the isooctyl sebacate: the formula of the lubricating oil additive is selected from sulfur pentasulfide TDPS 532: 0.187%, extreme pressure antiwear agent T305: 0.416%, benzotriazole fatty amine salt T406E: 0.313%, dibutyl dithiocarbamate Rc 6340: 1.05%, lard cd-1: 1.415 percent, evenly stirred and heated for 40 minutes at 80 ℃ to obtain the product.
The synthetic ester with the ortho-position of the neopentyl polyol ester (NPE-3) group as a quaternary carbon atom has more excellent thermal and hydrolytic stability than diester, and mainly comprises neopentyl glycol ester, trimethylolpropane ester and pentaerythritol ester.
Example two
A lubricating oil containing additives such as lard oil and the like in mixed base oil mixed by neopentyl polyol ester (NPE-3) and isooctyl sebacate according to a ratio of 1:1 is prepared by adding lubricating oil additives accounting for the weight percentage of the mixed base oil mixed by the neopentyl polyol ester and the isooctyl sebacate according to a ratio of 1:1 into the mixed base oil mixed by the neopentyl polyol ester (NPE-3) and the isooctyl sebacate according to a ratio of 1: the formula of the lubricating oil additive is pentasulfide TDPS 532: 0.12%, extreme pressure antiwear agent T305: 0.218%, benzotriazole fatty amine salt T406E: 0.83%, dibutyl dithiocarbamate Rc 6340: 1.05%, lard cd-1:1.22 percent, evenly mixed and stirred, and heated for 40 minutes at 80 ℃ to obtain the product.
EXAMPLE III
A lubricating oil containing additives such as lard oil and the like in mixed base oil of neopentyl polyol ester (NPE-3) and isooctyl sebacate mixed according to a ratio of 1:1 comprises the following formula: the following substances in percentage of mixed base oil mixed by neopentyl polyol ester and isooctyl sebacate according to a ratio of 1:1 are added into mixed base oil of neopentyl polyol ester (NPE-3) and isooctyl sebacate: pentasulfide TDPS 532: 0.25%, extreme pressure antiwear agent T305: 0.02%, benzotriazole fatty amine salt T406E: 0.35%, dibutyl dithiocarbamate Rc 6340: 0.45%, lard cd-1: 1.61 percent.
Example four
A lubricating oil containing additives such as lard oil and the like in mixed base oil of neopentyl polyol ester (NPE-3) and isooctyl sebacate mixed according to a ratio of 1:1 comprises the following formula: adding the following substances in percentage of mixed base oil mixed by neopentyl polyol ester (NPE-3) and isooctyl sebacate according to the ratio of 1:1 into mixed base oil mixed by neopentyl polyol ester (NPE-3) and isooctyl sebacate according to the ratio of 1: pentasulfide TDPS 532: 0.125%, extreme pressure antiwear agent T305: 0.218%, benzotriazole fatty amine salt T406E: 0.05%, dibutyl dithiocarbamate Rc 6340: 1.2 percent and 1:1.22 percent of lard oil cd-1.
A mixed lubricating oil mixed by neopentyl polyol ester (NPE-3) and isooctyl sebacate according to a ratio of 1:1 is added with pentasulfide TDPS532, an extreme pressure antiwear agent T305, benzotriazole fatty amine salt T406E, dibutyl dithiocarbamate Rc6340 and lard oil cd-1 for proportioning, verification group tests are carried out, and an artificial neural network method is used for optimization calculation and re-certification. Because of containing sulfur and phosphorus elements, the alloy has certain corrosiveness.
Neopentyl Polyol Ester (Neopentyl Polyol Ester) is a kind of synthetic Ester with quaternary carbon atom in the ortho position of Ester group in the molecular structure, and has excellent thermal and hydrolytic stability compared with diester, including NPE-3 and NPE-2. The neopentyl polyol ester has excellent high and low temperature performance, high flash point, low pour point and low viscosity, is generally used as base oil of II type aeroengine oil, high temperature chain oil and refrigerating machine oil compatible with synthetic air compressor oil and environment-friendly refrigerant, and can also improve the defects of rubber shrinkage caused by poly-olefin and poor compatibility to additives. Used as base oil for gear oil of internal combustion engine. NPE-2 is particularly suitable for type II aeroengine oil, and NPE-3 is suitable for synthetic ester high-temperature chain oil. The physical and chemical properties of the neopentyl polyol ester NPE-3 are shown in Table 1.
TABLE 1 physiochemical Properties of neopentyl polyol ester NPE-3
Diisooctyl sebacate (Dioctyl sebacate) also known as such: dioctyl sebacate, di (2-ethylhexyl) 1, 10-sebacate. Colorless or light yellow transparent oily liquid with special odor. Dissolving in organic solvent such as hydrocarbon, alcohol, ester, chlorohydrocarbon, diethyl ether, and benzene. High plasticizing efficiency, low volatility, excellent cold resistance, good heat resistance, good light resistance and good electric insulation. The physicochemical properties of isooctyl sebacate are shown in Table 2.
TABLE 2 physicochemical Properties of isooctyl sebacate
The polypentasulfide (TDPS532) is an extreme pressure antiwear agent with high sulfur content. The physical and chemical properties of the polypentasulfide (TDPS532) are shown in Table 3.
TABLE 3 physicochemical Properties of the polypentasulfide (TDPS532)
| Appearance of the product | Oil solubility | Flash point (open) deg.C | Sulfur content/%) | Mercaptan content ppm | Copper sheet corrosion (121 ℃, 3h grade) |
| Light yellow | Is transparent | ≥121 | 31.5 | 6.5 | 4b-4c |
The extreme pressure antiwear agent (T305) belongs to the S, P, N type antiwear additive. In the friction process, S, P, N reacts with the metal surface of the friction pair to generate extreme pressure antiwear chemical films of sulfide, phosphide and the like, and the extreme pressure antiwear chemical films have excellent extreme pressure property, antiwear property and friction improvement property, and have good compatibility with other additives. The physical and chemical properties of the extreme pressure antiwear agent (T305) are shown in Table 4.
TABLE 4 physicochemical Properties of extreme pressure anti-wear agent (T305)
Multifunctional additive T406E. The benzotriazole fatty amine salt (T-406) has multiple functions of corrosion resistance, high-temperature oxidation resistance, wear resistance, rust prevention and the like. The T406E additive is liquid at normal temperature and has the functions of anti-wear and anti-attrition. The physical and chemical properties are shown in Table 5.
TABLE 5 physicochemical Properties of benzotriazole fatty amine salt (T-406E)
| Appearance of the product | Oil solubility/%) | Nitrogen content (wt./wt.) | Corrosion of copper sheet (100 deg.C, 3h), grade |
| Yellow transparent liquid | ≥20 | ≥10 | First stage |
Dibutyl dithiocarbamate (RC6340) is a derivative of dialkyl pentasulfide (RC2540), and compared with RC2540, RC6340 has better tribological properties and more obvious antiwear and antifriction effects. And compared with RC2540, the dibutyl dithiocarbamate RC6340 has better oil solubility and fat solubility, and is a lubricating oil additive with excellent fat solubility. The physical and chemical properties of dibutyl dithiocarbamate (RC6340) are shown in 6.
TABLE 6 physical and chemical Properties of dibutyl dithiocarbamate (RC6340)
Liquid lard cd-1: the oily additive is refined from pigskin and lard oil, is yellow oily liquid, is easy to dissolve in ether solvents, has ester groups in molecules, is easy to form a directional adsorption layer on the metal surface, improves the lubricating property, reduces the wear degree, is suitable for blending rolling oil and metal cutting oil, can be compounded with an emulsifier to prepare emulsified oil and semi-synthetic liquid, and is provided by Shanghai gallop German trade company Limited. The physical and chemical properties of the liquid lard cd-1 are shown in the attached table 7.
TABLE 7 physicochemical Properties of liquid lard cd-1
Five additives are added into mixed lubricating oil mixed by neopentyl polyol ester (NPE-3) and isooctyl sebacate according to the ratio of 1:1, and the content ratio is optimized and designed by adopting an artificial neural network. Pentasulfide TDPS532, extreme pressure antiwear agent T305, benzotriazole fatty amine salt T406E, dibutyl dithiocarbamate Rc6340 and lard oil cd-1 are added into mixed lubricating oil mixed by 1:1 of neopentyl polyol ester NPE-3 and isooctyl sebacate, and the maximum non-seizure load Pb can reach 980N. The long-time abrasion and spot-grinding value,
selecting mixed lubricating oil of neopentyl polyol ester (NPE-3) and isooctyl sebacate in a ratio of 1:1 as base oil, and selecting pentasulfide TDPS532, extreme pressure antiwear agent T305, benzotriazole fatty amine salt T406E and dibutyl dithioamino as lubricating oil additiveFormate Rc6340 and lard cd-1 are proportioned, and a verification group test is carried out, and a 5-factor 9 level test is adopted for research. The object of investigation is Y1＝Pb，
The tribology study of the additives in synthetic oils in biodegradable base oils was studied using a uniform design schedule test,
to a mixed base oil of neopentyl polyol ester (NPE-3) and isooctyl sebacate mixed in a ratio of 1:1 was added pentasulfide TDPS 532: 0-0.5%, extreme pressure antiwear agent T305: 0.02-1.802%, benzotriazole fatty amine salt (T-406) T406E: 0-0.336%, dibutyl dithiocarbamate Rc 6340: 0-1.2%, lard cd-1: 0.05-1.805%, 5-factor 9 level tests were designed with test results: and (3) making a Pb value and a long grinding spot value, wherein the Pb is maximal 921N, and the long grinding spot value is as follows:
the above description is only a preferred example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like of the present invention shall be included in the protection scope of the present invention.
Claims (2)
1. An environment-friendly gear lubricating oil is characterized by comprising the following components in percentage by weight:
mixed base oil of neopentyl polyol ester NPE-3 and isooctyl sebacate mixed according to the ratio of 1:1, and the following substances accounting for the percentage of the mixed base oil: pentasulfide TDPS 532: 0-0.5%, extreme pressure antiwear agent T305: 0.02-1.802%, benzotriazole fatty amine salt T406E: 0-0.336%, dibutyl dithiocarbamate Rc 6340: 0-1.2%, lard cd-1: 0.05-1.805%.
2. The method for preparing the environmentally friendly gear lubricating oil according to claim 1, comprising the steps of:
the mixed base oil mixed by neopentyl polyol ester NPE-3 and isooctyl sebacate according to the ratio of 1:1 is added with the following substances in percentage by weight of the mixed base oil: pentasulfide TDPS 532: 0-0.5%, extreme pressure antiwear agent T305: 0.02-1.802%, benzotriazole fatty amine salt T406E: 0-0.336%, dibutyl dithiocarbamate Rc 6340: 0-1.2%, lard cd-1: 0.05 to 1.805 percent, and heating for 40 minutes at 80 ℃ after evenly mixing and stirring.
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| RU2283341C1 (en) * | 2005-07-18 | 2006-09-10 | Татьяна Иосифовна Назарова | Motor-gearbox oil for aeronautical engineering |
| CN103614193A (en) * | 2013-11-19 | 2014-03-05 | 沈阳理工大学 | Neopentyl polyol ester automobile gear lubricating oil |
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| CN103980987A (en) * | 2014-01-08 | 2014-08-13 | 沈阳理工大学 | Synthesized lubricating oil containing pentasulfide and lard |
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| CN103289794B (en) * | 2013-06-18 | 2014-12-10 | 上海禾泰特种润滑科技股份有限公司 | Extreme-pressure gear oil compound additive and preparation method thereof |
| CN103614195B (en) * | 2013-11-26 | 2016-03-23 | 沈阳理工大学 | Automobile gear lubricant |
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| RU2283341C1 (en) * | 2005-07-18 | 2006-09-10 | Татьяна Иосифовна Назарова | Motor-gearbox oil for aeronautical engineering |
| CN103614193A (en) * | 2013-11-19 | 2014-03-05 | 沈阳理工大学 | Neopentyl polyol ester automobile gear lubricating oil |
| CN103756757A (en) * | 2013-12-27 | 2014-04-30 | 沈阳理工大学 | Synthetic automobile gear lubricating oil containing pentasulfide and animal oil |
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