CN114350429A - Lubricating oil, preparation method and application thereof - Google Patents
Lubricating oil, preparation method and application thereof Download PDFInfo
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- CN114350429A CN114350429A CN202210274503.2A CN202210274503A CN114350429A CN 114350429 A CN114350429 A CN 114350429A CN 202210274503 A CN202210274503 A CN 202210274503A CN 114350429 A CN114350429 A CN 114350429A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/087—Boron oxides, acids or salts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/105—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing three carbon atoms only
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
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- Chemical & Material Sciences (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention provides lubricating oil, a preparation method and application thereof, wherein the lubricating oil comprises the following components in percentage by mass: 18.0% -22.0% of base oil PAO; 75.0% -80.5% of synthetic ester base oil; 0.55% -1.6% of an antiwear agent; 0.1% -0.5% of corrosion inhibitor; 0.5% -1.2% of antioxidant; 0.01% -0.03% of defoaming agent; 0.01% -0.05% of demulsifier; the antiwear agent comprises copper borate, and the mass percentage of the copper borate in the lubricating oil is 0.05% -0.30%. The lubricating oil has appropriate components and content, excellent abrasion resistance and corrosion resistance, wherein the copper borate and the base oil have a synergistic effect, and the excellent lubricating protection performance of a friction pair can be obtained by using a small amount of an antiwear agent, so that the lubricating oil is particularly suitable for lubricating a bearing, and the preparation method is simple, short in process flow and suitable for large-scale popularization.
Description
Technical Field
The invention belongs to the technical field of lubricating oil, and relates to lubricating oil, a preparation method and application thereof.
Background
The lubricating oil is a liquid or semisolid lubricating agent used on automobiles and mechanical equipment to reduce friction and protect machines and workpieces, and mainly plays roles in lubrication, cooling, rust prevention, cleaning, sealing, buffering and the like.
The lubricating oil consists of two parts, namely base oil and an additive, wherein the base oil is the main component of the lubricating oil, the basic property of the lubricating oil is determined, the additive can make up and improve the deficiency of the performance of the base oil, and the additive endows certain new performance and is an important component of the lubricating oil.
The properties of lubricating oils are closely related to those of base oils and additives, and therefore, in order to further improve the properties of lubricating oils, it is necessary to optimize the base oils and additives and their contents.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide lubricating oil, a preparation method and application thereof, wherein the lubricating oil is suitable in components and content, has excellent abrasion resistance and corrosion resistance, has a synergistic effect between copper borate and base oil, can obtain excellent lubricating protection performance of a friction pair by using a small amount of an antiwear agent, and is particularly suitable for lubricating a bearing.
In order to achieve the purpose, the invention adopts the following technical scheme:
one purpose of the invention is to provide lubricating oil, which comprises the following components in percentage by mass:
18.0% -22.0% of base oil PAO, such as 18.5%, 19.0%, 19.2%, 19.8%, 20.3%, 20.8% or 21.5%, and the like, preferably 19.0% -21.0%;
75.0% -80.5% of synthetic ester base oil, such as 75.5%, 75.8%, 76.5%, 77.2%, 78.6%, 79.5% or 80.0%, and the like, preferably 76.5% -78.9%;
0.55-1.6% of antiwear agent, such as 0.60%, 0.75%, 0.86%, 0.92%, 1.1%, 1.3% or 1.5% and the like;
0.1% -0.5% of corrosion inhibitor, such as 0.2%, 0.3% or 0.4%, preferably 0.2% -0.4%;
0.5-1.2% of antioxidant, such as 0.6%, 0.7%, 0.8%, 0.9% or 1.1%, preferably 0.8-1.1%;
0.01-0.03% of defoaming agent, such as 0.02% and the like;
0.01-0.05% of demulsifier, such as 0.02%, 0.03% or 0.04%, preferably 0.01-0.03%;
as is well known to those skilled in the art, the sum of the mass percentages of the components of the lubricating oil should be 100%.
The antiwear agent is a lubricating oil additive, and commonly used antiwear agents in lubricating oil comprise a sulfur type antiwear agent, a phosphorus type antiwear agent, a sulfur phosphorus type antiwear agent, a halogen type antiwear agent, an organic metal type antiwear agent and a boron type antiwear agent, and can reduce the abrasion of an engine and increase the power of the engine.
The antiwear agent provided by the invention comprises copper borate (CAS:39290-85-2), wherein the mass percentage of the copper borate in the lubricating oil is 0.05% -0.30%, such as 0.06%, 0.08%, 0.15%, 0.23% or 0.28%, preferably 0.09% -0.15%, and most preferably 0.10%. The copper borate and the base oil (base oil PAO and synthetic ester base oil) have a synergistic effect, so that excellent lubricating and protecting properties of the friction pair can be obtained by adding a very small amount of copper borate.
Preferably, the antiwear agent further comprises organic molybdenum, and the mass percentage of the organic molybdenum in the lubricating oil is 0.5% -1.3%, such as 0.6%, 0.7%, 0.8%, 0.9%, 1.0% or 1.2%, preferably 0.8% -1.2%, and more preferably 1.0%.
Preferably, the organo-molybdenum is selected from any one or a combination of at least two of molybdenum dialkyldithiophosphate, molybdenum dialkylaryl dithiocarbamate or zinc molybdenum dialkyldithiophosphate, such as molybdenum dialkyldithiophosphate and molybdenum dialkylaryl dithiocarbamate, molybdenum dialkylaryl dithiocarbamate and zinc molybdenum dialkyldithiophosphate, molybdenum dialkylaryl dithiocarbamate and zinc molybdenum dialkyldithiophosphate.
The organic molybdenum not only has good extreme pressure wear resistance and load resistance, but also has excellent oxidation resistance.
As a preferable technical scheme, the lubricating oil comprises the following components in percentage by mass:
19.0-21.0% of base oil PAO
76.5-78.9% of synthetic ester base oil
0.09% -0.15% of copper borate
0.8 to 1.2 percent of organic molybdenum
0.2 to 0.4 percent of anticorrosive agent
0.8 to 1.1 percent of antioxidant
0.01 to 0.03 percent of defoaming agent
0.01% -0.03% of demulsifier.
As a more preferable technical scheme, the lubricating oil comprises the following components in percentage by mass:
base oil PAO 20.0%
77.56 percent of synthetic ester base oil
0.10 percent of copper borate
1.0 percent of organic molybdenum
0.3 percent of corrosion inhibitor
1.0 percent of antioxidant
0.02 percent of defoaming agent
0.02 percent of demulsifier.
The base oil is an important component of the lubricating oil, and the lubricating oil provided by the invention comprises two base oils, wherein one base oil is PAO (poly alpha olefin), and the base oil PAO is prepared by polymerizing ethylene to prepare alpha olefin, and further polymerizing and hydrogenating the alpha olefin. It is the most common synthetic lubricating oil base oil and has the widest application range. The base oil PAO has good viscosity-temperature performance and low-temperature fluidity, and is ideal base oil for preparing high-grade and special lubricating oil.
Base oil PAOs can be classified into low-viscosity PAOs, medium-viscosity PAOs, and high-viscosity PAOs, depending on the viscosity;
low viscosity includes: PAO2, PAO2.5, PAO4, PAO5, PAO6, PAO7, PAO8, PAO9, and PAO 10;
medium viscosities include: PAO25, etc.;
high viscosity includes: PAO40, PAO100, PAO150, and PAO 300.
Base oils PAOs can be classified into the following groups, depending on the monomer:
polydecene: PAO2, PAO4, PAO6, PAO8, and PAO 25;
poly-dodecene: PAO2.5, PAO5, PAO7, and PAO 9;
mixed ten and twelve olefin polymers: PAO40 and PAO100
In the lubricating oil provided by the invention, the base oil PAO is selected from the combination of PAO40 and PAO 6.
The base oil provided by the invention also comprises synthetic ester base oil, wherein the synthetic ester base oil is lubricating oil which is obtained by a chemical synthesis or refining method and contains ester-based natural substances in a molecular structure.
The synthetic ester base oil has the highest SN grade of gasoline engine lubricating oil. The base oil PAO and the synthetic ester base oil can accelerate the formation of a protective oil film and protect an engine in advance, and the overall performance is more outstanding.
Preferably, the synthetic ester base oil is selected from trimethylol acrylate and/or trimethylol propane oleate.
Additives are another important component of lubricating oils and the present invention provides lubricating oils containing various additives, such as the anti-wear agents described above, as well as anti-corrosion agents, antioxidants, anti-foam agents, and demulsifiers.
Engines fueled by fuel oil, kerosene, gasoline, natural or artificial gas, liquefied gas, or the like must use lubricants (e.g., paraffin-based lubricating oils) to lubricate their moving parts. The lubricating oil is contacted with air in use, various mechanical equipment can generate heat, the temperature of a friction part in operation is increased, in addition, various metal materials in the equipment, such as copper, iron and the like, can play a role of catalysis to accelerate the oxidative deterioration of oil products, finally, the viscosity of the lubricating oil is increased, acidic substances are generated to corrode the metal materials, and various carbon-shaped or asphalt-shaped precipitated substances, such as paint films and the like, can be generated to block pipelines. All of these changes can adversely affect the continued use of the oil and the proper operation of the equipment. Therefore, the oil product is required to have better oxidation resistance and corrosion resistance. Antioxidant and anticorrosive additives are added into oil products, and the antioxidant and anticorrosive additives are used for inhibiting the oxidation of the oil products, passivating the catalytic action of metals on the oxidation and achieving the purposes of prolonging the use of the oil products and protecting machines.
As a preferred technical scheme, the anticorrosive agent is selected from alkenyl succinate (CAS: 1541-67-9, alias: N-dodecylethanolamine).
Preferably, the antioxidant is selected from 2, 6-di-tert-butyl-p-methylphenol (CAS: 128-37-0), which has the functions of resisting oxidation and enhancing the thermal stability of oil products.
When the lubricating oil is used, the air enters the lubricating oil under the influence of vibration, stirring and the like, so that bubbles are formed, the lubricating performance of the lubricating oil is influenced, the oxidation speed is accelerated, the oil loss is caused, the oil is blocked from being transmitted, the oil supply is interrupted, the lubrication is hindered, and the pressure transmission of the hydraulic oil is influenced. The anti-foaming agent mainly inhibits the generation of foam and improves the speed of eliminating the foam so as to prevent the formation of stable foam. It can be adsorbed on the foam to form an unstable film, thereby achieving the purpose of destroying the foam. The defoaming agent comprises a silicon defoaming agent and a non-silicon defoaming agent; preferably, the defoamer is selected from silicone oil defoamers, more preferably T901 and/or T903.
Lubricating oils, when emulsified or otherwise poorly demulsified, lose fluidity (W/O type emulsions multiply increase the viscosity of the oil) and lubricity, and also cause metal corrosion and wear.
The particularity of the working environment of the engine, especially when the engine works in a splash lubrication mode and an open environment, the anti-emulsification capability of the lubricating oil is poor, oil-water separation is difficult to realize quickly, emulsification is easy to generate, and oil quality is deteriorated and loses functions after emulsification, so that the lubricating oil is required to have good demulsification capability under the premise of ensuring good lubricating performance.
The demulsifier is a surface active substance, which can destroy the stable double electric layer structure of emulsified liquid and stabilize the emulsified system, thereby achieving the purpose of separating two phases.
The lubricating oil anti-emulsifier is propylene oxide diamine polycondensate, high molecular polyether and modified high molecular polyether, glycol ester and glycol ether, compound anti-emulsifier and other types.
Preferably, the demulsifier used in the lubricating oil provided by the invention is selected from the group consisting of polyoxypropylene type derivatives, such as D114 and the like, which have the property of fast water diversion.
The second object of the present invention is to provide a method for preparing the lubricating oil, which comprises the following steps:
(1) mixing base oil PAO with synthetic ester base oil to obtain a first mixture;
(2) mixing an antiwear agent, an anticorrosive agent, an antioxidant, a defoaming agent and a demulsifier with the first mixture to obtain a second mixture;
(3) the second mixture was filtered through a 10 micron filter to obtain the lubricating oil.
As a preferable technical scheme, the mixing in the step (1) is carried out in a reaction kettle by heating.
Preferably, the heating temperature is 60 ℃ to 70 ℃, such as 62 ℃, 65 ℃, 68 ℃ or 69 ℃ and the like.
As a preferred technical scheme, the step (2) of mixing the antiwear agent, the anticorrosive agent, the antioxidant, the antifoaming agent and the demulsifier with the first mixture specifically comprises the following steps: sequentially putting organic molybdenum, an anticorrosive agent, an antioxidant, a defoaming agent, a demulsifier and copper borate into a reaction kettle for mixing.
Preferably, the second mixture in the step (2) is blended in the reaction kettle for 0.8-1.5 h, such as 0.9h, 1.0h, 1.2h or 1.4 h.
Preferably, the lubricating oil is obtained by performing assay after the filtration in the step (3) and determining that the assay is qualified.
The qualified quality index and the detection method are as follows:
1, appearance: brown; visual inspection was carried out.
Kinematic viscosity (40 ℃, mm)2/S)，76.5~92.5；GB/T265。
3, flash point (open) (DEG C) is not lower than 180; GB/T3536.
4, moisture (%), trace; GB/T260.
5, pour point (DEG C), not higher than-20; GB/T3535.
The preparation method of the lubricating oil provided by the invention is simple, short in process flow and convenient to popularize and use.
It is a further object of the present invention to provide the use of a lubricating oil as described above for bearing lubrication.
The lubricating oil provided by the invention is excellent in lubricating property and corrosion resistance, and is particularly suitable for lubricating bearings.
The recitation of numerical ranges herein includes not only the above-recited numerical values, but also any numerical values between non-recited numerical ranges, and is not intended to be exhaustive or to limit the invention to the precise numerical values encompassed within the range for brevity and clarity.
Compared with the prior art, the invention has the beneficial effects that:
1. the lubricating oil provided by the invention has appropriate components and contents, and has excellent abrasion resistance and corrosion resistance; the copper borate and the base oil have a synergistic effect, and excellent lubricating and protecting properties of a friction pair can be obtained by using a small amount of an antiwear agent, so that the lubricating oil composition is particularly suitable for lubricating a bearing;
2. the preparation method of the lubricating oil is simple, short in process flow and suitable for popularization and application.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
Example 1
The lubricating oil comprises the following components in percentage by mass:
base oil PAO18.0%
79.29 percent of synthetic ester base oil
0.05 percent of copper borate
1.3 percent of organic molybdenum
0.1 percent of corrosion inhibitor
1.2 percent of antioxidant
0.01 percent of defoaming agent
0.05 percent of demulsifier.
The base oil PAO is PAO 40;
the synthetic ester base oil is trihydroxy methyl acrylate;
the organic molybdenum is dialkyl molybdenum dithiophosphate;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecylethanolamine;
the antioxidant is 2, 6-di-tert-butyl-p-methylphenol, CAS is 128-37-0;
the defoaming agent is T901;
the demulsifier is a derivative of polyoxypropane type-D114;
the preparation method of the lubricating oil comprises the following steps:
(1) mixing base oil PAO and synthetic ester base oil in a reaction kettle at a heating temperature of 60 ℃ to obtain a first mixture;
(2) sequentially putting organic molybdenum, an anticorrosive agent, an antioxidant, a defoaming agent, a demulsifier and copper borate into a reaction kettle, and mixing with the first mixture for 1.5 hours to obtain a second mixture;
(3) and filtering the second mixture by using a 10-micron filter, and testing to be qualified to obtain the lubricating oil.
Example 2
The lubricating oil comprises the following components in percentage by mass:
base oil PAO 22.0%
76.16 percent of synthetic ester base oil
0.30 percent of copper borate
0.5 percent of organic molybdenum
0.5 percent of corrosion inhibitor
0.5 percent of antioxidant
0.03 percent of defoaming agent
0.01 percent of demulsifier.
The base oil PAO is PAO 40;
the synthetic ester base oil is trimethylolpropane oleate;
the organic molybdenum is molybdenum dialkyl (aryl) dithiocarbamate;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecyl ethanolamine.
The antioxidant is 2, 6-di-tert-butyl-p-methylphenol, and CAS is 128-37-0.
The antifoaming agent is T903.
The demulsifier is a derivative of polyoxypropane type, namely D114.
The preparation method of the lubricating oil comprises the following steps:
(1) mixing base oil PAO and synthetic ester base oil in a reaction kettle at a heating temperature of 70 ℃ to obtain a first mixture;
(2) sequentially putting organic molybdenum, an anticorrosive agent, an antioxidant, a defoaming agent, a demulsifier and copper borate into a reaction kettle, and mixing with the first mixture for 0.8h to obtain a second mixture;
(3) and filtering the second mixture by using a 10-micron filter, and testing to be qualified to obtain the lubricating oil.
Example 3
The lubricating oil comprises the following components in percentage by mass:
base oil PAO 21.62%
75.0 percent of synthetic ester base oil
0.30 percent of copper borate
1.3 percent of organic molybdenum
0.5 percent of corrosion inhibitor
1.2 percent of antioxidant
0.03 percent of defoaming agent
0.05 percent of demulsifier.
The base oil PAO is PAO 100;
the synthetic ester base oil is trimethylolpropane oleate;
the organic molybdenum is molybdenum dialkyl (aryl) dithiocarbamate and molybdenum zinc dialkyl dithiophosphate, and the mass ratio of the organic molybdenum to the molybdenum zinc dialkyl dithiophosphate is 2: 1;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecyl ethanolamine.
The antioxidant is 2, 6-di-tert-butyl-p-methylphenol, and CAS is 128-37-0.
The defoaming agent is T901 and T903, and the mass ratio of the defoaming agent to the defoaming agent is 1: 3.
The demulsifier is a derivative of polyoxypropane type, namely D114.
The preparation method of the lubricating oil comprises the following steps:
(1) mixing base oil PAO and synthetic ester base oil in a reaction kettle at a heating temperature of 70 ℃ to obtain a first mixture;
(2) sequentially putting organic molybdenum, an anticorrosive agent, an antioxidant, a defoaming agent, a demulsifier and copper borate into a reaction kettle, and mixing with the first mixture for 0.8-1.5 h to obtain a second mixture;
(3) and filtering the second mixture by using a 10-micron filter, and testing to be qualified to obtain the lubricating oil.
Example 4
The lubricating oil comprises the following components in percentage by mass:
base oil PAO 18.33%
80.5 percent of synthetic ester base oil
0.05 percent of copper borate
0.5 percent of organic molybdenum
0.1 percent of corrosion inhibitor
0.5 percent of antioxidant
0.01 percent of defoaming agent
0.01 percent of demulsifier.
The base oil PAO is a combination of PAO40 and PAO6, and the mass ratio of the base oil PAO to the PAO6 is 1: 1;
the synthetic ester base oil is trihydroxymethyl acrylate and trimethylolpropane oleate, and the mass ratio of the synthetic ester base oil to the trimethylolpropane oleate is 2: 1;
the organic molybdenum is molybdenum dialkyl dithiophosphate, molybdenum dialkyl (aryl) dithiocarbamate and molybdenum zinc dialkyl dithiophosphate, and the mass ratio of the organic molybdenum to the molybdenum dialkyl (aryl) dithiocarbamate is 1: 1: 1;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecyl ethanolamine.
The antioxidant is 2, 6-di-tert-butyl-p-methylphenol, and CAS is 128-37-0.
The antifoaming agent is T903.
The demulsifier is a derivative of polyoxypropane type, namely D114.
The preparation method of the lubricating oil comprises the following steps:
(1) mixing base oil PAO and synthetic ester base oil in a reaction kettle at a heating temperature of 65 ℃ to obtain a first mixture;
(2) sequentially putting organic molybdenum, an anticorrosive agent, an antioxidant, a defoaming agent, a demulsifier and copper borate into a reaction kettle, and mixing with the first mixture for 1.0h to obtain a second mixture;
(3) and filtering the second mixture by using a 10-micron filter, and testing to be qualified to obtain the lubricating oil.
Example 5
The lubricating oil comprises the following components in percentage by mass:
base oil PAO 20.87%
76.5 percent of synthetic ester base oil
0.09 percent of copper borate
1.2 percent of organic molybdenum
0.2 percent of corrosion inhibitor
1.1 percent of antioxidant
0.01 percent of defoaming agent
0.03 percent of demulsifier.
The base oil PAO is a combination of PAO40 and PAO6, and the mass ratio of the base oil PAO is 3: 1;
the synthetic ester base oil is trihydroxy methyl acrylate;
the organic molybdenum is dialkyl molybdenum dithiophosphate;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecyl ethanolamine.
The antioxidant is 2, 6-di-tert-butyl-p-methylphenol, and CAS is 128-37-0.
The antifoaming agent is T901.
The demulsifier is a derivative of polyoxypropane type, namely D114.
The preparation method of the lubricating oil comprises the following steps:
(1) mixing base oil PAO and synthetic ester base oil in a reaction kettle at a heating temperature of 65 ℃ to obtain a first mixture;
(2) sequentially putting organic molybdenum, an anticorrosive agent, an antioxidant, a defoaming agent, a demulsifier and copper borate into a reaction kettle, and mixing with the first mixture for 1.0h to obtain a second mixture;
(3) and filtering the second mixture by using a 10-micron filter, and testing to be qualified to obtain the lubricating oil.
Example 6
The lubricating oil comprises the following components in percentage by mass:
base oil PAO 21.0%
76.81 percent of synthetic ester base oil
0.15 percent of copper borate
0.8 percent of organic molybdenum
0.4 percent of anticorrosive agent
0.8 percent of antioxidant
0.03 percent of defoaming agent
0.01 percent of demulsifier.
The base oil PAO is a combination of PAO40 and PAO6, and the mass ratio of the base oil PAO to the PAO6 is 1: 2;
the synthetic ester base oil is trimethylolpropane oleate;
the organic molybdenum is dialkyl molybdenum zinc dithiophosphate;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecyl ethanolamine.
The antioxidant is 2, 6-di-tert-butyl-p-methylphenol, and CAS is 128-37-0.
The antifoaming agent is T903.
The demulsifier is a derivative of polyoxypropane type, namely D114.
The preparation method of the lubricating oil comprises the following steps:
(1) mixing base oil PAO and synthetic ester base oil in a reaction kettle at a heating temperature of 65 ℃ to obtain a first mixture;
(2) sequentially putting organic molybdenum, an anticorrosive agent, an antioxidant, a defoaming agent, a demulsifier and copper borate into a reaction kettle, and mixing with the first mixture for 1.0h to obtain a second mixture;
(3) and filtering the second mixture by using a 10-micron filter, and testing to be qualified to obtain the lubricating oil.
Example 7
The lubricating oil comprises the following components in percentage by mass:
base oil PAO 19.0%
78.09 percent of synthetic ester base oil
0.15 percent of copper borate
1.2 percent of organic molybdenum
0.4 percent of anticorrosive agent
1.1 percent of antioxidant
0.03 percent of defoaming agent
0.03 percent of demulsifier.
The base oil PAO is a combination of PAO40 and PAO6, and the mass ratio of the base oil PAO to the PAO6 is 1: 1;
the synthetic ester base oil is trihydroxy methyl acrylate;
the organic molybdenum is dialkyl molybdenum dithiophosphate;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecyl ethanolamine.
The antioxidant is 2, 6-di-tert-butyl-p-methylphenol, and CAS is 128-37-0.
The antifoaming agent is T903.
The demulsifier is a derivative of polyoxypropane type, namely D114.
The preparation method of the lubricating oil comprises the following steps:
(1) mixing base oil PAO and synthetic ester base oil in a reaction kettle at a heating temperature of 70 ℃ to obtain a first mixture;
(2) sequentially putting organic molybdenum, an anticorrosive agent, an antioxidant, a defoaming agent, a demulsifier and copper borate into a reaction kettle, and mixing with the first mixture for 1.5 hours to obtain a second mixture;
(3) and filtering the second mixture by using a 10-micron filter, and testing to be qualified to obtain the lubricating oil.
Example 8
The lubricating oil comprises the following components in percentage by mass:
base oil PAO 19.19%
78.9 percent of synthetic ester base oil
0.09 percent of copper borate
0.8 percent of organic molybdenum
0.2 percent of corrosion inhibitor
0.8 percent of antioxidant
0.01 percent of defoaming agent
0.01 percent of demulsifier.
The base oil PAO is a combination of PAO40 and PAO6, and the mass ratio of the base oil PAO to the PAO6 is 1: 3;
the synthetic ester base oil is a combination of trimethylolpropane oleate and trimethylolpropane acrylate, and the mass ratio of the synthetic ester base oil to the trimethylolpropane oleate is 1: 1;
the organic molybdenum is dialkyl molybdenum dithiophosphate;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecyl ethanolamine.
The antioxidant is 2, 6-di-tert-butyl-p-methylphenol, and CAS is 128-37-0.
The antifoaming agent is T903.
The demulsifier is a derivative of polyoxypropane type, namely D114.
The preparation method of the lubricating oil comprises the following steps:
(1) mixing base oil PAO and synthetic ester base oil in a reaction kettle at a heating temperature of 65 ℃ to obtain a first mixture;
(2) sequentially putting organic molybdenum, an anticorrosive agent, an antioxidant, a defoaming agent, a demulsifier and copper borate into a reaction kettle, and mixing with the first mixture for 1.0h to obtain a second mixture;
(3) and filtering the second mixture by using a 10-micron filter, and testing to be qualified to obtain the lubricating oil.
Example 9
The lubricating oil comprises the following components in percentage by mass:
base oil PAO 20.0%
77.56 percent of synthetic ester base oil
0.10 percent of copper borate
1.0 percent of organic molybdenum
0.3 percent of corrosion inhibitor
1.0 percent of antioxidant
0.02 percent of defoaming agent
0.02 percent of demulsifier.
The base oil PAO is a combination of PAO40 and PAO6, and the mass ratio of the base oil PAO to the PAO6 is 1: 2;
the synthetic ester base oil is trihydroxy methyl acrylate;
the organic molybdenum is dialkyl molybdenum dithiophosphate;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecyl ethanolamine.
The antioxidant is 2, 6-di-tert-butyl-p-methylphenol, and CAS is 128-37-0.
The antifoaming agent is T901.
The demulsifier is a derivative of polyoxypropane type, namely D114.
The preparation method of the lubricating oil comprises the following steps:
(1) mixing base oil PAO and synthetic ester base oil in a reaction kettle at a heating temperature of 65 ℃ to obtain a first mixture;
(2) sequentially putting organic molybdenum, an anticorrosive agent, an antioxidant, a defoaming agent, a demulsifier and copper borate into a reaction kettle, and mixing with the first mixture for 1h to obtain a second mixture;
(3) and filtering the second mixture by using a 10-micron filter, and testing to be qualified to obtain the lubricating oil.
Comparative example 1
A lubricating oil, the components and the contents of the components were the same as those in example 9, except that copper borate was replaced with lanthanum oxide.
The lubricating oil was prepared in the same manner as in example 9.
Comparative example 2
A lubricating oil, the components and the contents of the components were the same as those in example 9, except that the base oil PAO was replaced with a synthetic ester base oil.
The lubricating oil was prepared in the same manner as in example 9.
Comparative example 3
A lubricating oil, the components and the contents of the components were the same as those in example 9, except that the synthetic ester base oil was replaced with the base oil PAO.
The lubricating oil was prepared in the same manner as in example 9.
Comparative example 4
A lubricating oil, the components and the contents of the components were the same as those in example 9, except that the base oil PAO or the synthetic ester base oil was replaced with a vegetable oil.
The lubricating oil was prepared in the same manner as in example 9.
Comparative example 5
The lubricating oil comprises the following components in percentage by mass:
base oil PAO 16.5%
81.06 percent of synthetic ester base oil
0.10 percent of copper borate
1.0 percent of organic molybdenum
0.3 percent of corrosion inhibitor
1.0 percent of antioxidant
0.02 percent of defoaming agent
0.02 percent of demulsifier.
The base oil PAO is a combination of PAO40 and PAO6, and the mass ratio of the base oil PAO to the PAO6 is 1: 2;
the synthetic ester base oil is trihydroxy methyl acrylate;
the organic molybdenum is dialkyl molybdenum dithiophosphate;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecyl ethanolamine.
The antioxidant is 2, 6-di-tert-butyl-p-methylphenol, and CAS is 128-37-0.
The antifoaming agent is T901.
The lubricating oil was prepared in the same manner as in example 9.
Comparative example 6
The lubricating oil comprises the following components in percentage by mass:
base oil PAO 23.5%
74.06 percent of synthetic ester base oil
0.10 percent of copper borate
1.0 percent of organic molybdenum
0.3 percent of corrosion inhibitor
1.0 percent of antioxidant
0.02 percent of defoaming agent
0.02 percent of demulsifier.
The base oil PAO is a combination of PAO40 and PAO6, and the mass ratio of the base oil PAO to the PAO6 is 1: 2;
the synthetic ester base oil is trihydroxy methyl acrylate;
the organic molybdenum is dialkyl molybdenum dithiophosphate;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecyl ethanolamine.
The antioxidant is 2, 6-di-tert-butyl-p-methylphenol, and CAS is 128-37-0.
The antifoaming agent is T901.
The lubricating oil was prepared in the same manner as in example 9.
Comparative example 7
The lubricating oil comprises the following components in percentage by mass:
base oil PAO 20.0%
77.26 percent of synthetic ester base oil
0.40 percent of copper borate
1.0 percent of organic molybdenum
0.3 percent of corrosion inhibitor
1.0 percent of antioxidant
0.02 percent of defoaming agent
0.02 percent of demulsifier.
The base oil PAO is a combination of PAO40 and PAO6, and the mass ratio of the base oil PAO to the PAO6 is 1: 2;
the synthetic ester base oil is trihydroxy methyl acrylate;
the organic molybdenum is dialkyl molybdenum dithiophosphate;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecyl ethanolamine.
The antioxidant is 2, 6-di-tert-butyl-p-methylphenol, and CAS is 128-37-0.
The antifoaming agent is T901.
The lubricating oil was prepared in the same manner as in example 9.
Comparative example 8
The lubricating oil comprises the following components in percentage by mass:
base oil PAO 20.0%
77.64 percent of synthetic ester base oil
0.02 percent of copper borate
1.0 percent of organic molybdenum
0.3 percent of corrosion inhibitor
1.0 percent of antioxidant
0.02 percent of defoaming agent
0.02 percent of demulsifier.
The base oil PAO is a combination of PAO40 and PAO6, and the mass ratio of the base oil PAO to the PAO6 is 1: 2;
the synthetic ester base oil is trihydroxy methyl acrylate;
the organic molybdenum is dialkyl molybdenum dithiophosphate;
the corrosion inhibitor is alkenyl succinate, CAS:1541-67-9, also known as: n-dodecyl ethanolamine.
The antioxidant is 2, 6-di-tert-butyl-p-methylphenol, and CAS is 128-37-0.
The antifoaming agent is T901.
The lubricating oil was prepared in the same manner as in example 9.
The following performance tests were performed on the above examples and comparative examples, with the following test types and test methods:
1. PD value: GB/T3142;
2. PB value: GB/T3142;
3. corrosion resistance (T2 copper sheet, 50 ℃, 3 h): GB/T5096.
The test results are shown in table 1 below:
as can be seen from Table 1, the lubricating oil provided by the invention has appropriate components and contents, and strong abrasion resistance and corrosion resistance; the copper borate and the base oil have a synergistic effect, so that excellent lubricating and protecting properties of a friction pair can be obtained by using a small amount of an antiwear agent, and the lubricating oil is particularly suitable for lubricating a bearing;
in addition, the preparation method of the lubricating oil provided by the invention is simple, short in process flow and suitable for popularization and application.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The lubricating oil is characterized by comprising the following components in percentage by mass:
18.0-22.0% of base oil PAO
75.0-80.5% of synthetic ester base oil
0.55 to 1.6 percent of antiwear agent
0.1 to 0.5 percent of anticorrosive agent
0.5 to 1.2 percent of antioxidant
0.01 to 0.03 percent of defoaming agent
0.01% -0.05% of demulsifier;
the antiwear agent comprises copper borate, and the mass percentage of the copper borate in the lubricating oil is 0.05% -0.30%.
2. The lubricating oil of claim 1, wherein the copper borate is present in the lubricating oil in an amount of 0.09% to 0.15% by weight;
the antiwear agent also comprises organic molybdenum, and the mass percentage of the organic molybdenum in the lubricating oil is 0.5% -1.3%;
the organic molybdenum is selected from any one of molybdenum dialkyl dithiophosphate, molybdenum dialkyl (aryl) dithiocarbamate or molybdenum zinc dialkyl dithiophosphate or a combination of at least two of the molybdenum dialkyl dithiophosphate and the molybdenum zinc dialkyl dithiocarbamate.
3. The lubricating oil according to claim 1, comprising the following components in percentage by mass:
19.0-21.0% of base oil PAO
76.5-78.9% of synthetic ester base oil
0.09% -0.15% of copper borate
0.8 to 1.2 percent of organic molybdenum
0.2 to 0.4 percent of anticorrosive agent
0.8 to 1.1 percent of antioxidant
0.01 to 0.03 percent of defoaming agent
0.01% -0.03% of demulsifier.
4. The lubricating oil according to claim 1, comprising the following components in percentage by mass:
base oil PAO 20.0%
77.56 percent of synthetic ester base oil
0.10 percent of copper borate
1.0 percent of organic molybdenum
0.3 percent of corrosion inhibitor
1.0 percent of antioxidant
0.02 percent of defoaming agent
0.02 percent of demulsifier.
5. The lubricating oil of claim 1, wherein the base oil PAO is selected from the group consisting of PAO40 and PAO6 in combination;
the synthetic ester base oil is selected from trimethylolpropane oleate and/or trimethylolpropane acrylate.
6. The lubricating oil of claim 1, wherein the corrosion inhibitor is selected from the group consisting of alkenyl succinates;
the antioxidant is selected from 2, 6-di-tert-butyl-p-methylphenol;
the defoaming agent is selected from silicone oil defoaming agents;
the demulsifier is selected from derivatives of polyoxypropane type.
7. A method of preparing the lubricating oil of any one of claims 1 to 6, comprising the steps of:
(1) mixing base oil PAO with synthetic ester base oil to obtain a first mixture;
(2) mixing an antiwear agent, an anticorrosive agent, an antioxidant, a defoaming agent and a demulsifier with the first mixture to obtain a second mixture;
(3) the second mixture was filtered through a 10 micron filter to obtain the lubricating oil.
8. The method according to claim 7, wherein the mixing in step (1) is carried out by heating in a reaction vessel;
the heating temperature is 60-70 ℃.
9. The preparation method of claim 7, wherein the mixing of the antiwear agent, the anticorrosive agent, the antioxidant, the antifoaming agent, and the demulsifier with the first mixture in step (2) is specifically: sequentially putting organic molybdenum, an anticorrosive agent, an antioxidant, a defoaming agent, a demulsifier and copper borate into a reaction kettle for mixing;
blending the second mixture obtained in the step (2) in a reaction kettle for 0.8-1.5 h;
and (3) testing after filtering, and obtaining the lubricating oil after testing is qualified.
10. Use of a lubricating oil according to any one of claims 1 to 6 for bearing lubrication.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886068A (en) * | 2014-11-20 | 2016-08-24 | 天津市泽畅科技有限公司 | Compounded additive for lubricating oil |
| CN108384612A (en) * | 2018-03-30 | 2018-08-10 | 天长市润达金属防锈助剂有限公司 | A kind of wear-resistant rust preventive cutting fluid |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886068A (en) * | 2014-11-20 | 2016-08-24 | 天津市泽畅科技有限公司 | Compounded additive for lubricating oil |
| CN108384612A (en) * | 2018-03-30 | 2018-08-10 | 天长市润达金属防锈助剂有限公司 | A kind of wear-resistant rust preventive cutting fluid |
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| TWI826024B (en) * | 2022-09-30 | 2023-12-11 | 睿映科技股份有限公司 | Long-lasting vacuum pump oil and method of manufacturing the same |
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