CN110305726B - Multifunctional low-temperature environment-friendly durable lubricating oil - Google Patents
Multifunctional low-temperature environment-friendly durable lubricating oil Download PDFInfo
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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
- C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
- C10M111/02—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a non-macromolecular organic compound
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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
- C10M173/00—Lubricating compositions containing more than 10% water
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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
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
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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
- C10M2201/08—Inorganic acids or salts thereof
- C10M2201/084—Inorganic acids or salts thereof containing sulfur, selenium or tellurium
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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
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
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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
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
- C10M2207/046—Hydroxy ethers
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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
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy 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
- C10M2207/40—Fatty vegetable or animal oils
- C10M2207/401—Fatty vegetable or animal oils 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
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
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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
- C10M2229/0405—Siloxanes with specific structure 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
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—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
- C10N2030/08—Resistance to extreme temperature
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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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/18—Anti-foaming property
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/64—Environmental friendly compositions
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The invention relates to the technical field of lubricating oil production, in particular to multifunctional low-temperature environment-friendly durable lubricating oil which is prepared from the following raw materials in parts by weight: 80-130 parts of plant base synthetic oil, 1-3.5 parts of viscosity index modifier, 2-4 parts of antioxidant, 1-3 parts of defoaming agent and 150 parts of water; the plant base synthetic oil is prepared from the following raw materials in parts by weight: 10-30 parts of soybean oil, 85-100 parts of rapeseed oil, 5-15 parts of linseed oil, 7-15 parts of concentrated sulfuric acid and 10-15 parts of triethylene glycol. The lubricating oil disclosed by the invention is pollution-free, green and environment-friendly, easy to degrade, good in oxidation stability, good in hydrolysis stability, outstanding in low-temperature fluidity and excellent in antirust performance.
Description
Technical Field
The invention relates to the technical field of lubricating oil production, in particular to multifunctional low-temperature environment-friendly durable lubricating oil.
Background
With the rapid development of the mechanical industry, the demand for lubricating oil applied between parts is continuously expanding, the performance requirement for the lubricating oil is higher and higher, and people pay more and more attention to the lubricating oil in the aspects of environmental protection, energy conservation and the like.
The vegetable oil-based lubricant is an environment-friendly lubricating oil, such as soybean oil, rapeseed oil, cottonseed oil, corn oil and the like, the biodegradability of the lubricant is the most important performance index of ecological effect of the lubricant, and the current vegetable oil-based lubricant has the problems of insufficient oxidation stability, hydrolytic stability and low-temperature fluidity, so that the multifunctional low-temperature environment-friendly durable lubricating oil is provided aiming at the problems.
Disclosure of Invention
The invention aims to provide multifunctional low-temperature environment-friendly durable lubricating oil which is pollution-free, environment-friendly, easy to degrade, good in oxidation stability, good in hydrolysis stability, outstanding in low-temperature fluidity and excellent in anti-rust performance.
In order to achieve the above purpose, the invention provides the following technical scheme:
the multifunctional low-temperature environment-friendly durable lubricating oil is characterized by being prepared from the following raw materials in parts by weight: 80-130 parts of plant base synthetic oil, 1-3.5 parts of viscosity index modifier, 2-4 parts of antioxidant, 1-3 parts of defoaming agent and 150 parts of water.
Preferably, the plant base synthetic oil is prepared from the following raw materials in parts by weight: 10-30 parts of soybean oil, 85-100 parts of rapeseed oil, 5-15 parts of linseed oil, 7-15 parts of concentrated sulfuric acid and 10-15 parts of triethylene glycol.
The plant-based synthetic oil disclosed by the invention is composed of soybean oil, rapeseed oil, linseed oil, concentrated sulfuric acid and triethylene glycol, wherein the soybean oil, the rapeseed oil and the linseed oil are natural biomass oil, and the natural biomass oil can be freely degraded, is pollution-free and is green and environment-friendly.
Preferably, the plant-based synthetic oil is prepared by treating the following steps:
s1: adding soybean oil, rapeseed oil and linseed oil in corresponding parts by weight into a stirrer for dispersion, controlling the rotation speed at 1500-1700r/min, and stirring for 15-20min to obtain a component A;
s2: heating the component A to 65-75 ℃, adding triethylene glycol, controlling the rotating speed of 1700-;
s3: adding concentrated sulfuric acid into the component B for acidification, and testing the pH value of the solution after each addition to obtain a component C;
s4: and filtering and drying the component C to obtain the solid plant base synthetic oil.
In the synthetic method of the plant base synthetic oil, the catalyst concentrated sulfuric acid is used for promoting the formation of positive ions of acyl groups by utilizing the strong acidity and strong protonation capability of the concentrated sulfuric acid, so that the esterification reaction is carried out in a forward and reverse direction, and the reverse reaction of ester hydrolysis is reduced; simultaneously, adding concentrated sulfuric acid in batches for acidification, testing the pH value of the solution after each addition, stopping adding the concentrated sulfuric acid when the pH value of the solution is 7-8, promoting the hydrolysis of the plant base synthetic oil due to the high acidity of the solution, and controlling the pH value of the solution as the hydrolysis reaction speed of the plant base synthetic oil in a neutral medium is lower than that of an acidic medium; in addition, concentrated sulfuric acid is removed after filtering and drying treatment, and the plant base synthetic oil with good hydrolytic stability is obtained.
Preferably, the viscosity index modifier is prepared by the following steps:
and (3) preparing graphene oxide: viscosity index modifier: the absolute ethyl alcohol is (0.2-0.6): 5: 30 to obtain uniform mixed solution, drying and granulating the mixed solution by using a spray dryer to obtain the viscosity index modifier with the average particle size of 50 microns, wherein the viscosity index modifier is polymethyl methacrylate.
The preparation method of the viscosity index modifier uses absolute ethyl alcohol as a solvent, and the graphene oxide contains hydroxyl and epoxy groups on the surface and carboxyl on the edge, and these oxygen-containing groups can provide a large number of active sites for the attached viscosity index modifier, to which the viscosity index modifier can be attached, the graphene oxide can ensure that the wrapping effect is better, the viscosity index modifier also has certain lubricating property and excellent surface activity in the later period, and the lubricating oil also has excellent lubricating property and low-temperature flow property in the later period; and after the other part of graphene oxide is doped into lubricating oil, the part of graphene oxide can be associated with water molecules through hydrogen bonds due to the fact that the graphene oxide has an overlarge comparative area and oxygen-containing groups on the surface, and a water-insulating film is formed on the surface of the plant-based synthetic oil, so that the plant-based synthetic oil is prevented from contacting with moisture, moisture and acidic substances, and an anti-rust effect is achieved.
Preferably, the antioxidant is octadecyl- (3, 5-tert-butyl-4-m hydroxyl phenyl propyl) propionate, and the defoaming agent is a silicone oil defoaming agent.
The antioxidant used in the invention can improve the oxidation stability of the lubricating oil, effectively prevent metal oxidation and delay the oxidation speed of the lubricating oil, and is non-toxic, pollution-free, green and environment-friendly.
The defoaming agent used in the invention has excellent hydrophilicity and extensibility, and has no influence on defoaming activity by heating and repeated cyclic heating under the condition of high temperature, so that the lubricating oil has wider application range and better and stable effect.
Preferably, the preparation method of the multifunctional low-temperature environment-friendly durable lubricating oil comprises the following steps:
adding water with corresponding weight part into a stirrer, controlling the rotating speed to be 2000-plus-2200 r/min, heating to be 40-50 ℃, adding the solid plant basic synthetic oil for dispersion, continuing to stir for 40-50min, adding the antioxidant and the defoaming agent with corresponding weight part, controlling the rotating speed to be 2500-plus-3000 r/min, reducing the rotating speed to be 1000-plus-1200 r/min after stirring for 10-15 min, and adding the viscosity index modifier with corresponding weight part to obtain the multifunctional low-temperature environment-friendly durable lubricating oil.
The invention has the beneficial effects that:
(1) the multifunctional low-temperature environment-friendly durable lubricating oil is prepared from biodegradable base oil and various auxiliaries, can be biodegraded in a short time, is pollution-free and environment-friendly;
(2) the invention modifies the viscosity index modifier by using the graphene oxide with a specific proportion, because the surface of the graphene oxide contains hydroxyl and epoxy groups, and the edge of the graphene oxide has carboxyl, and these oxygen-containing groups can provide a large number of active sites for the attached viscosity index modifier, to which the viscosity index modifier can be attached, one part of the modified lubricating oil can wrap the viscosity index modifier, so that the modified lubricating oil can play a good wrapping role on the viscosity index modifier to form the viscosity index modifier with a specific particle size and a slow release effect, the modified lubricating oil can ensure that the modified lubricating oil has wetting performance in the early stage and can slowly release the viscosity index modifier in the later stage, the wrapping effect is better by using the graphene oxide, the modified viscosity index modifier also has certain lubricating performance and excellent surface activity in the later stage, and the lubricating oil also has excellent lubricating performance and low-temperature flow performance under the low-temperature condition in the later stage; meanwhile, the other part of graphene oxide is agglomerated due to incomplete dispersion, and after the graphene oxide is doped into lubricating oil, a water-insulating film can be formed on the surface of the plant base synthetic oil by the part of graphene oxide, so that the plant base synthetic oil is prevented from contacting with water, moisture and acidic substances, and an anti-rust effect is achieved;
(3) the multifunctional low-temperature environment-friendly durable lubricating oil disclosed by the invention can effectively prevent metal oxidation and delay the oxidation speed of the lubricating oil by using the viscosity index modifier and the antioxidant, has good oxidation stability and better application prospect;
(4) the multifunctional low-temperature environment-friendly durable lubricating oil disclosed by the invention has the advantages of readily available raw materials, low cost, very high use value and good application prospect.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following embodiments, unless otherwise specified, the technical means used are conventional means well known to those skilled in the art.
Example 1
In the embodiment, the multifunctional low-temperature environment-friendly durable lubricating oil consists of the following components in parts by weight: 130 parts of plant base synthetic oil, 3.5 parts of viscosity index modifier, 4 parts of antioxidant, 3 parts of defoaming agent and 120 parts of water.
The vegetable base synthetic oil is prepared from the following raw materials in parts by weight: 30 parts of soybean oil, 100 parts of rapeseed oil, 10 parts of linseed oil, 10 parts of concentrated sulfuric acid and 15 parts of triethylene glycol.
The viscosity index modifier is processed by the following steps:
and (3) preparing graphene oxide: viscosity index modifier: absolute ethanol was mixed at a ratio of 0.6: 5: 30 to obtain uniform mixed solution, drying and granulating the mixed solution by using a spray dryer to obtain the viscosity index modifier with the average particle size of 50 microns, wherein the viscosity index modifier is polymethyl methacrylate.
The preparation method of the multifunctional low-temperature environment-friendly durable lubricating oil comprises the following steps:
adding water with corresponding weight part into a stirrer, controlling the rotating speed to be 2000-plus-2200 r/min, heating to be 40-50 ℃, adding the solid plant basic synthetic oil for dispersion, continuing to stir for 40-50min, adding the antioxidant and the defoaming agent with corresponding weight part, controlling the rotating speed to be 2500-plus-3000 r/min, reducing the rotating speed to be 1000-plus-1200 r/min after stirring for 10-15 min, and adding the viscosity index modifier with corresponding weight part to obtain the multifunctional low-temperature environment-friendly durable lubricating oil.
Example 2
The preparation methods of the viscosity index modifier and the multifunctional low-temperature environment-friendly durable lubricating oil in the embodiment are the same as those in embodiment 1, and are not repeated herein.
In the embodiment, the multifunctional low-temperature environment-friendly durable lubricating oil consists of the following components in parts by weight: 120 parts of plant base synthetic oil, 3.5 parts of viscosity index modifier, 4 parts of antioxidant, 3 parts of defoaming agent and 130 parts of water.
The vegetable base synthetic oil is prepared from the following raw materials in parts by weight: 20 parts of soybean oil, 100 parts of rapeseed oil, 10 parts of linseed oil, 10 parts of concentrated sulfuric acid and 15 parts of triethylene glycol.
Example 3
The preparation methods of the viscosity index modifier and the multifunctional low-temperature environment-friendly durable lubricating oil in the embodiment are the same as those in embodiment 1, and are not repeated herein.
In the embodiment, the multifunctional low-temperature environment-friendly durable lubricating oil consists of the following components in parts by weight: 130 parts of plant base synthetic oil, 1.5 parts of viscosity index modifier, 4 parts of antioxidant, 3 parts of defoaming agent and 122 parts of water.
The vegetable base synthetic oil is prepared from the following raw materials in parts by weight: 30 parts of soybean oil, 100 parts of rapeseed oil, 10 parts of linseed oil, 10 parts of concentrated sulfuric acid and 15 parts of triethylene glycol.
Example 4
The composition and preparation method of the multifunctional low-temperature environment-friendly durable lubricating oil in this embodiment are the same as those in embodiment 1, and are not described herein again, except that the graphene oxide in the preparation of the viscosity index modifier: viscosity index modifier: the proportion of absolute ethyl alcohol is different and is 0.2: 5: 30.
example 5
The preparation methods of the viscosity index modifier and the multifunctional low-temperature environment-friendly durable lubricating oil in the embodiment are the same as those in embodiment 1, and are not repeated herein.
In the embodiment, the multifunctional low-temperature environment-friendly durable lubricating oil consists of the following components in parts by weight: 130 parts of plant base synthetic oil, 3.5 parts of viscosity index modifier, 2 parts of antioxidant, 3 parts of defoaming agent and 122 parts of water.
The vegetable base synthetic oil is prepared from the following raw materials in parts by weight: 30 parts of soybean oil, 100 parts of rapeseed oil, 10 parts of linseed oil, 10 parts of concentrated sulfuric acid and 15 parts of triethylene glycol.
Comparative example 1
The composition and preparation method of the multifunctional low-temperature environment-friendly durable lubricating oil in the comparative example are the same as those of example 1, and are not repeated herein, except that the viscosity index modifier is not incorporated in the comparative example.
Comparative example 2
The composition and preparation method of the multifunctional low-temperature environment-friendly durable lubricating oil in the comparative example are the same as those of example 1, and are not repeated herein, except that the viscosity index modifier in the comparative example is commercially available polymethyl methacrylate directly, and is not treated by the improved method of the present invention.
Comparative example 3
The components and the preparation method of the multifunctional low-temperature environment-friendly durable lubricating oil in the comparative example are the same as those in example 1, and are not described herein again.
The viscosity index modifier is processed by the following steps:
and (3) preparing graphene oxide: viscosity index modifier: absolute ethanol was mixed at a ratio of 0.6: 5: 30 to obtain uniform mixed solution, drying and granulating the mixed solution by using a spray dryer to obtain the viscosity index modifier with the average particle size of 30 microns, wherein the viscosity index modifier is polymethyl methacrylate.
Comparative example 4
The components and the preparation method of the multifunctional low-temperature environment-friendly durable lubricating oil in the comparative example are the same as those in example 1, and are not described herein again.
The viscosity index modifier is processed by the following steps:
and (3) preparing graphene oxide: viscosity index modifier: absolute ethanol was mixed at a ratio of 0.6: 5: 30 to obtain uniform mixed solution, drying and granulating the mixed solution by using a spray dryer to obtain the viscosity index modifier with the average particle size of 70 microns, wherein the viscosity index modifier is polymethyl methacrylate.
Comparative example 5
The composition and preparation method of the multifunctional low-temperature environment-friendly durable lubricating oil in the comparative example are the same as those in example 1, and are not described in detail herein, except that an antioxidant is not incorporated in the comparative example.
The results of comparing examples 1 to 5 with comparative examples 1 to 5 according to the present invention are as follows:
the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the intention of all modifications, equivalents, improvements, and equivalents falling within the spirit and scope of the invention.
Claims (1)
1. The multifunctional low-temperature environment-friendly durable lubricating oil is characterized by being prepared from the following raw materials in parts by weight: 130 parts of plant base synthetic oil, 1.5 parts or 3.5 parts of viscosity index modifier, 2-4 parts of antioxidant, 3 parts of defoaming agent and 150 parts of water; the plant base synthetic oil is prepared from the following raw materials in parts by weight: 10-30 parts of soybean oil, 85-100 parts of rapeseed oil, 5-15 parts of linseed oil, 7-15 parts of concentrated sulfuric acid and 10-15 parts of triethylene glycol; the plant-based synthetic oil is prepared by the following steps: s1: adding soybean oil, rapeseed oil and linseed oil in corresponding parts by weight into a stirrer for dispersion, controlling the rotation speed at 1500-1700r/min, and stirring for 15-20min to obtain a component A; s2: heating the component A to 65-75 ℃, adding triethylene glycol, controlling the rotating speed of 1700-; s3: adding concentrated sulfuric acid into the component B for acidification, testing the pH value of the solution after each addition, and stopping adding the concentrated sulfuric acid when the pH value of the solution is 7-8 to obtain a component C; s4: filtering and drying the component C to obtain solid plant base synthetic oil; the viscosity index modifier is prepared by the following steps: and (3) preparing graphene oxide: viscosity index modifier: the absolute ethyl alcohol is (0.2-0.6): 5: 30 to obtain uniform mixed solution, drying and granulating the mixed solution by using a spray dryer to obtain a viscosity index modifier with the average particle size of 50 microns, wherein the viscosity index modifier is polymethyl methacrylate; the antioxidant is octadecyl (beta- (3, 5-tert-butyl-4-m hydroxyl phenyl propyl) propionate), and the defoaming agent is a silicone oil defoaming agent; the preparation method of the multifunctional low-temperature environment-friendly durable lubricating oil comprises the following steps: adding water with corresponding weight part into a stirrer, controlling the rotating speed to be 2000-plus-2200 r/min, heating to be 40-50 ℃, adding the solid plant basic synthetic oil for dispersion, continuing to stir for 40-50min, adding the antioxidant and the defoaming agent with corresponding weight part, controlling the rotating speed to be 2500-plus-3000 r/min, reducing the rotating speed to be 1000-plus-1200 r/min after stirring for 10-15 min, and adding the viscosity index modifier with corresponding weight part to obtain the multifunctional low-temperature environment-friendly durable lubricating oil.
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Citations (3)
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|---|---|---|---|---|
| CN105802709A (en) * | 2016-03-24 | 2016-07-27 | 刘应才 | Preparation method for antioxidant gasoline engine lubricating oil |
| CN106367187A (en) * | 2016-08-30 | 2017-02-01 | 宝捷润滑油镇江有限公司 | Vegetable oil based lubricant |
| CN106566597A (en) * | 2016-11-09 | 2017-04-19 | 新疆现代石油化工股份有限公司 | Lubricating oil extreme pressure agent and preparation method thereof |
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| US20050124504A1 (en) * | 2002-07-26 | 2005-06-09 | Ashland Inc. | Lubricant and additive formulation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105802709A (en) * | 2016-03-24 | 2016-07-27 | 刘应才 | Preparation method for antioxidant gasoline engine lubricating oil |
| CN106367187A (en) * | 2016-08-30 | 2017-02-01 | 宝捷润滑油镇江有限公司 | Vegetable oil based lubricant |
| CN106566597A (en) * | 2016-11-09 | 2017-04-19 | 新疆现代石油化工股份有限公司 | Lubricating oil extreme pressure agent and preparation method thereof |
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