CN107892986A - A kind of carboxyl-functional graphene lubricating oil and preparation method thereof - Google Patents
A kind of carboxyl-functional graphene lubricating oil and preparation method thereof 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
- 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
- C10M139/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups C10M127/00 - C10M137/00
- C10M139/04—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups C10M127/00 - C10M137/00 having a silicon-to-carbon bond, e.g. silanes
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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
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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
- C10M2205/026—Butene
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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
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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
- C10M2209/084—Acrylate; Methacrylate
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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
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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
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/04—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having a silicon-to-carbon bond, e.g. organo-silanes
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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
-
- 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
- C10N2040/25—Internal-combustion engines
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Abstract
The invention discloses a kind of carboxyl-functional graphene lubricating oil and preparation method thereof, the carboxyl-functional graphene lubricating oil includes the following component calculated according to mass percent：0.01~4wt% of carboxyl-functional graphene, 0.1~10wt% of graphene base body dispersant, 15~25wt% of 75~85wt% of base oil and lube oil additive, described preparation method modifies graphene oxide carboxyl-functional, and reduce after functionalization graphene, carboxyl-functional graphene, graphene base body dispersant and base oil are mixed, heating, stirring, ultrasonic vibration, it is stirred for, lube oil additive is added after ultrasonic vibration, stirring is sufficiently mixed, and obtains carboxyl-functional graphene lubricating oil.The present invention solves the scattering problem of graphene from mechanism, for conventional lubrication oil, coefficient of friction can reduce by 10 15% under identical test operating mode, wear scar diameter is small, preparation method technique is simple simultaneously, and cost is low, low production efficiency, industrialized production easily is realized, there is preferable economic benefit and social benefit.
Description
Technical field
The present invention relates to a kind of novel graphite alkene lubricating oil and preparation method thereof, and in particular to a kind of carboxyl-functional
Graphene lubricating oil and preparation method thereof, belong to graphene lubrication technical field.
Background technology
The a large amount of available energies of friction loss in automobile engine system, and generate substantial amounts of abrasion.In order to reduce
The friction of engine system, the most frequently used method is exactly that friction surface is lubricated by lubricating oil, between surface of friction pair
The lubricating oil film that normal direction bearing capacity is high, tangential shear strength is low is formed, is worn with this to reduce frictional resistance and material, and then
Reduce frictional work loss and material loss.
In order to strengthen the greasy property of lubricating oil, it is necessary to be modified to lubricating oil, added in base oil various wear-resistant
The additive of anti-attrition strengthens lubricating oil heat transfer to realize, improves lubrication oil antiwear, antifriction performance and bearing capacity, and optimization lubrication is rubbed
The effect of wiping, the lubricating status between " piston group-cylinder jacket " friction pair is set to moisten as far as possible in hydrldynamic pressure lubrication, hydrostatic pressure
In sliding, elastic hydrodynamic lubrication state.As patent CN104946351B provides a kind of lubricant oil composite and improves lubrication
The method of oily antiwear and friction reduction property, it includes Mannich base, alkylnaphthalene sulfonate, phenolic ester and/or sulfophenates antioxidant, vulcanization
Alkyl phenate and lube base oil, greasy property can be effectively improved；And for example patent CN102936528B provides one kind and received
The lubrication oil antiwear agent of rice modified form and its manufacture method, it is mixed by the nano antiwear agent and additive of mass ratio 6: 4,
And the lubrication oil antiwear agent of this nanometer of modified form is represented in use, the hardness in surface of friction pair generation protective layer is conventional iron-based
More than one times of alloy, coefficient of friction than originally have dropped an order of magnitude, in addition, the lubrication oil antiwear agent of this nanometer of modified form
With extremely strong rubbing surface self-repair function.
Graphene is a kind of two dimensional crystal, is arranged by carbon atom according to hexagon, is connected with each other, and forms a carbon point
Son, its structure are highly stable；Graphene is a kind of known most thin material, and with high specific surface area, superpower
The advantages that electric conductivity and intensity, graphene nano particle are lazy with its excellent heat conductivility and anti-wear and wear-resistant performance and chemistry
Property, the lubrication heat-transfer character of lubricating oil can be obviously improved, it has also become potential high-performance lubriation material.
Graphene is added to as additive can improve the frictional behavior of lubricating oil in lubricating oil, but existing graphite
Alkene lubricating oil Related product and technology are all that graphene or graphene oxide and a certain proportion of dispersant are added into lubrication
In oil, the blending of conventional physics can not realize the steady in a long-term of lubricating oil, have greatly to the large-scale application of graphene lubricating oil
Limitation.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of novel graphite alkene lubricating oil and preparation method thereof.
In order to achieve the above object, technical scheme is as follows：
The invention provides a kind of carboxyl-functional graphene lubricating oil, it is characterised in that includes what is calculated according to mass percent
Following component：0.01~4wt% of carboxyl-functional graphene, 0.1~10wt% of graphene base body dispersant, base oil 75~
15~25wt% of 85wt% and lube oil additive, wherein,
Described carboxyl-functional graphene is that carboxyl edge is repaiied using the silane coupled part and higher fatty acid salt of amino-contained
The functionalization graphene of decorations；
Described graphene base body dispersant is the polymer of anchoring group containing amine.
Described base oil is one kind in the mineral base oil, synthetic base oil and plant oil base oil of different model
Or two or more combinations.
Described lube oil additive is detergent-dispersant additive, oxidation and corrosion inhibitor, oiliness improver, antioxidant, tackifier, antirust
One or both of agent, pour-point depressant, anti-foaming agent, demulsifier etc. combination of the above.
Detergent-dispersant additive in the lube oil additive is calcium mahogany sulfonate, calcium alkylbenzenesulfonate, synthesis sulfonic acid magnesium, sulphur phosphorus
Change polyisobutene barium salt, alkyl sodium salicylate, magnesium naphthenate, high three values calcium naphthenate, one kind in sulfurized alkylphenol calcium or two
Kind combination of the above；Oxidation and corrosion inhibitor is sulphur phosphorus alkyl phenol zinc salt, sulphur phosphorus fourth octyl group zinc salt, the double octyl group basic zinc salts of sulphur phosphorus, sulphur phosphorus
One or both of double octyl group basic zinc salts, sulphur phosphorus dialkyl group zinc salt combination of the above；Oiliness improver is vulcanization haco oil, dimerization
Acid, oleic acid glycol ester, oleic acid glycol ester, sulfuration cottonseed oil, benzotriazole aliphatic acid amine salt, triphenyl phosphite, phosphorus
One or both of triethylenetetraminehexaacetic acid ester, butyl oleate, stearic acid butyl ester, dioctyl phthalate, wind rape oil, oleic acid above group
Close；Antioxidant is 2,6- di-t-butyls mixed ester, 2,6 BHTs, 2,6- di-t-butyl-α dimethylaminos to first
One or both of phenol, N- phenyl-alpha-naphthylamines combination of the above；Tackifier are polymethacrylates, polyisobutene, second third are common
In polymers, polyacrylate, succimide ethylene-propylene copolymer, styrene-diene copolymer, butadiene rubber, random polypropylene
One or more kinds of combinations；Antirust agent is zinc naphthenate, barium dinonyl napthalene sulphonate, benzotriazole, synthesis sulfonic acid magnesium
One or more kinds of combinations；Pour-point depressant is one or two kinds of combinations of poly- α alkene, polyacrylate；Anti-foaming agent is methyl silicon
Oil, acrylic acid combine with the one or two of ether copolymer；Demulsifier is PEO-polypropylene oxide.
Present invention also offers the preparation method of foregoing carboxyl-functional graphene lubricating oil, it includes：
（1）Functional modification will be carried out positioned at the carboxyl at graphene oxide layer edge by molecule and construction design method, drawn
Enter the silane coupled part and higher fatty acid salt of amino-contained, and graphene oxide is reduced using graphene oxide reduction technique and made
Obtain the carboxyl-functional graphene of silane coupled part and higher fatty acid salt modification；
（2）Carboxyl-functional graphene, graphene base body dispersant and base oil are mixed, are heated to 60-70 DEG C, and at a high speed
Lubricating oil is added after stirring 20-40min, ultrasonic vibration 20-40min, then high-speed stirred 20-40min, ultrasonic vibration 20-40min
Additive, and high-speed stirred 20-40min is allowed to be sufficiently mixed, that is, obtains carboxyl-functional graphene lubricating oil.
The frequency of the ultrasonic vibration is 40-60kHZ, power 300-800W.
The frequency of the ultrasonic vibration is 50kHZ, power 500W.
The mixing speed of the high-speed stirred is 100-5000r/min.
The mixing speed of the high-speed stirred is 200-400r/min.
Described mode of heating is that electrical heating or water jacket heat.
It is further used as preferably, the graphene oxide number of plies for modification is 2-10 layers, wherein using 3-5 layers to be optimal.
It is further used as preferably, the graphene oxide for modification can be by mechanically pulling off and/or high-temperature heat expansion
And/or chemical reaction system, but not limited to this.
Compared with prior art, advantages of the present invention and have the beneficial effect that：
1st, graphene is carried out carboxyl-functional by the present invention first, will carry out function positioned at the carboxyl at graphene oxide layer edge
Change modification, introduce the silane coupled part and higher fatty acid salt of amino-contained, the scattering problem for solving graphene from mechanism, and
Lubricating oil compatibility is good, and abrasion resistance is good, solves the problems, such as that graphene is reunited in lubricating oil.
2nd, preparation method technique of the invention is simple, and cost is low, low production efficiency, easily realizes industrialized production.
3rd, for the present invention is compared with conventional lubrication oil, coefficient of friction can reduce 10-15%, wear scar diameter under identical test operating mode
It is small.
Embodiment
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that the implementation
Example is only to aid in understanding the present invention, is not construed as the concrete restriction to the present invention.
The embodiments of the invention provide a kind of carboxyl-functional graphene lubricating oil, it is characterised in that comprising according to quality hundred
Divide the following component than calculating：0.01~4wt% of carboxyl-functional graphene, 0.1~10wt% of graphene base body dispersant, base
15~25wt% of 75~85wt% of plinth oil and lube oil additive, wherein,
Described carboxyl-functional graphene is that carboxyl edge is repaiied using the silane coupled part and higher fatty acid salt of amino-contained
The functionalization graphene of decorations；
Described graphene base body dispersant is the polymer of anchoring group containing amine.
Described base oil is one kind in the mineral base oil, synthetic base oil and plant oil base oil of different model
Or two or more combinations.
Described lube oil additive is detergent-dispersant additive, oxidation and corrosion inhibitor, oiliness improver, antioxidant, tackifier, antirust
One or both of agent, pour-point depressant, anti-foaming agent, demulsifier etc. combination of the above.
Detergent-dispersant additive in the lube oil additive is calcium mahogany sulfonate, calcium alkylbenzenesulfonate, synthesis sulfonic acid magnesium, sulphur phosphorus
Change polyisobutene barium salt, alkyl sodium salicylate, magnesium naphthenate, high three values calcium naphthenate, one kind in sulfurized alkylphenol calcium or two
Kind combination of the above；Oxidation and corrosion inhibitor is sulphur phosphorus alkyl phenol zinc salt, sulphur phosphorus fourth octyl group zinc salt, the double octyl group basic zinc salts of sulphur phosphorus, sulphur phosphorus
One or both of double octyl group basic zinc salts, sulphur phosphorus dialkyl group zinc salt combination of the above；Oiliness improver is vulcanization haco oil, dimerization
Acid, oleic acid glycol ester, oleic acid glycol ester, sulfuration cottonseed oil, benzotriazole aliphatic acid amine salt, triphenyl phosphite, phosphorus
One or both of triethylenetetraminehexaacetic acid ester, butyl oleate, stearic acid butyl ester, dioctyl phthalate, wind rape oil, oleic acid above group
Close；Antioxidant is 2,6- di-t-butyls mixed ester, 2,6 BHTs, 2,6- di-t-butyl-α dimethylaminos to first
One or both of phenol, N- phenyl-alpha-naphthylamines combination of the above；Tackifier are polymethacrylates, polyisobutene, second third are common
In polymers, polyacrylate, succimide ethylene-propylene copolymer, styrene-diene copolymer, butadiene rubber, random polypropylene
One or more kinds of combinations；Antirust agent is zinc naphthenate, barium dinonyl napthalene sulphonate, benzotriazole, synthesis sulfonic acid magnesium
One or more kinds of combinations；Pour-point depressant is one or two kinds of combinations of poly- α alkene, polyacrylate；Anti-foaming agent is methyl silicon
Oil, acrylic acid combine with the one or two of ether copolymer；Demulsifier is PEO-polypropylene oxide.
The embodiment of the present invention additionally provides the preparation method of foregoing carboxyl-functional graphene lubricating oil, and it includes：
（1）Functional modification will be carried out positioned at the carboxyl at graphene oxide layer edge by molecule and construction design method, drawn
Enter the silane coupled part and higher fatty acid salt of amino-contained, and graphene oxide is reduced using graphene oxide reduction technique and made
Obtain the carboxyl-functional graphene of silane coupled part and higher fatty acid salt modification；
（2）Carboxyl-functional graphene, graphene base body dispersant and base oil are mixed, are heated to 60-70 DEG C, and at a high speed
Lubricating oil is added after stirring 20-40min, ultrasonic vibration 20-40min, then high-speed stirred 20-40min, ultrasonic vibration 20-40min
Additive, and high-speed stirred 20-40min is allowed to be sufficiently mixed, that is, obtains carboxyl-functional graphene lubricating oil.
The frequency of the ultrasonic vibration is 40-60kHZ, power 300-800W.
The frequency of the ultrasonic vibration is 50kHZ, power 500W.
The mixing speed of the high-speed stirred is 100-5000r/min.
The mixing speed of the high-speed stirred is 200-400r/min.
Described mode of heating is that electrical heating or water jacket heat.
It is further used as preferably, the graphene oxide number of plies for modification is 2-10 layers, wherein using 3-5 layers to be optimal.
It is further used as preferably, the graphene oxide for modification can be by mechanically pulling off and/or high-temperature heat expansion
And/or chemical reaction system, but not limited to this.
By above-mentioned technical proposal, carboxyl-functional graphene lubricating oil provided by the invention uses the carboxyl of special ratios
Functionalization graphene, graphene base body dispersant, base oil and lube oil additive coordinated, reach excellent graphene
Dispersion effect, and tradition is improved by membrane formation mechanism, ball mechanism, filling mechanism, surface polishing machine system and compound action mechanism
The abrasion resistance of lubricating oil.
Technical scheme is further described below by way of some embodiments.However, selected embodiment is only
For illustrating the present invention, and do not limit the scope of the invention.
Embodiment one：
A kind of carboxyl-functional graphene lubricating oil, first by the silane coupled part and higher fatty acid salt of amino-contained to aoxidizing stone
The carboxyl at black alkene lamella edge carries out functional modification, and is reduced into the carboxylic of silane coupled part and higher fatty acid salt modification
Base functionalization graphene, carboxyl-functional graphene lubricating oil is then prepared by weight：0.3 part of carboxyl-functional graphene, stone
1 part of mertenyl body dispersant, 6 parts of lubricating oil 150N base oils, 72.7 parts of 500N base oils, polyvinyl n-butyl ether 9.69
Part, 10 parts of polyisobutene, 0.3 part of polyalphaolefin, acrylic acid and 0.01 part of ether copolymer.
Carboxyl-functional graphene, graphene base body dispersant, lubricating oil 150N base oils, 500N base oils are added anti-
Answer in kettle, and be heated to 65 DEG C, then using agitator high-speed stirred 30min, using ultrasonic rod ultrasonic vibration 30min,
Again using agitator high-speed stirred 30min, again using adding polyvinyl n-butyl ether, poly- after ultrasonic rod ultrasonic vibration 30min
Isobutene, polyalphaolefin, acrylic acid and ether copolymer, and high-speed stirred 30min is allowed to be sufficiently mixed, that is, obtains carboxyl-functional
Graphene lubricating oil.
Embodiment two：
Then carboxyl-functional graphene preparation method prepares carboxyl-functional graphene lubricating oil by weight with example one：Carboxylic
0.2 part of base functionalization graphene, 0.8 part of graphene base body dispersant, 6 parts of lubricating oil 150N base oils, 73 parts of 500N base oils,
0.01 part of 9 parts of polyvinyl n-butyl ether, 10.79 parts of polyisobutene, 0.2 part of polyalphaolefin, acrylic acid and ether copolymer.
Carboxyl-functional graphene, graphene base body dispersant, lubricating oil 150N base oils, 500N base oils are added anti-
Answer in kettle, and be heated to 70 DEG C, then using agitator high-speed stirred 40min, using ultrasonic rod ultrasonic vibration 40min,
Again using agitator high-speed stirred 40min, again using adding polyvinyl n-butyl ether, poly- after ultrasonic rod ultrasonic vibration 40min
Isobutene, polyalphaolefin, acrylic acid and ether copolymer, and high-speed stirred 30min is allowed to be sufficiently mixed, that is, obtains carboxyl-functional
Graphene lubricating oil.
Embodiment three：
Then carboxyl-functional graphene preparation method prepares carboxyl-functional graphene lubricating oil by weight with example one：Carboxylic
0.1 part of base functionalization graphene, 0.5 part of graphene base body dispersant, 6 parts of lubricating oil 150N base oils, 500N base oils 73.4
Part, 8 parts of polyvinyl n-butyl ether, 11.79 parts of polyisobutene, 0.2 part of polyalphaolefin, acrylic acid and 0.01 part of ether copolymer.
Carboxyl-functional graphene, graphene base body dispersant, lubricating oil 150N base oils, 500N base oils are added anti-
Answer in kettle, and be heated to 50 DEG C, then using agitator high-speed stirred 40min, using ultrasonic rod ultrasonic vibration 30min,
Again using agitator high-speed stirred 40min, again using adding polyvinyl n-butyl ether, poly- after ultrasonic rod ultrasonic vibration 30min
Isobutene, polyalphaolefin, acrylic acid and ether copolymer, and high-speed stirred 40min is allowed to be sufficiently mixed, that is, obtains carboxyl-functional
Graphene lubricating oil.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection domain.
Claims (10)
1. a kind of carboxyl-functional graphene lubricating oil, it is characterised in that include the following component calculated according to mass percent：
0.01~4wt% of carboxyl-functional graphene, 0.1~10wt% of graphene base body dispersant, 75~85wt% of base oil and
15~25wt% of lube oil additive, wherein,
Described carboxyl-functional graphene is that carboxyl edge is repaiied using the silane coupled part and higher fatty acid salt of amino-contained
The functionalization graphene of decorations；
Described graphene base body dispersant is the polymer of anchoring group containing amine.
A kind of 2. carboxyl-functional graphene lubricating oil according to claim 1, it is characterised in that：Described base oil is
One or both of mineral base oil, synthetic base oil and the plant oil base oil of different model combination of the above.
A kind of 3. carboxyl-functional graphene lubricating oil according to claim 1, it is characterised in that：Described lubricating oil adds
Add agent for detergent-dispersant additive, oxidation and corrosion inhibitor, oiliness improver, antioxidant, tackifier, antirust agent, pour-point depressant, anti-foaming agent, demulsifier
Deng one or both of combination of the above.
A kind of 4. carboxyl-functional graphene lubricating oil according to claim 1, it is characterised in that：The lubricating oil addition
Detergent-dispersant additive in agent is calcium mahogany sulfonate, calcium alkylbenzenesulfonate, synthesis sulfonic acid magnesium, sulfur phosphorization polyisobutylene titanate salt, alkyl water
One or both of poplar acid calcium, magnesium naphthenate, high three values calcium naphthenate, sulfurized alkylphenol calcium combination of the above；Oxidation and corrosion inhibitor
For sulphur phosphorus alkyl phenol zinc salt, sulphur phosphorus fourth octyl group zinc salt, the double octyl group basic zinc salts of sulphur phosphorus, the double octyl group basic zinc salts of sulphur phosphorus, sulphur phosphorus two
One or both of alkyl zinc salt combination of the above；Oiliness improver is vulcanization haco oil, dimeric dibasic acid, oleic acid glycol ester, oleic acid second
Diol ester, sulfuration cottonseed oil, benzotriazole aliphatic acid amine salt, triphenyl phosphite, triethyl phosphate, butyl oleate, tristearin
One or both of sour fourth fat, dioctyl phthalate, wind rape oil, oleic acid combination of the above；Antioxidant is bis- tertiary fourths of 2,6-
One in base mixed ester, 2,6 BHTs, 2,6- di-t-butyl-α dimethylamino-p-cresols, N- phenyl-alpha-naphthylamines
Kind or two or more combinations；Tackifier are polymethacrylates, polyisobutene, ethylene-propylene copolymer, polyacrylate, succinyl
One or both of imines ethylene-propylene copolymer, styrene-diene copolymer, butadiene rubber, random polypropylene combination of the above；It is anti-
Rust agent is one or more kinds of combinations of zinc naphthenate, barium dinonyl napthalene sulphonate, benzotriazole, synthesis sulfonic acid magnesium；Drop
Solidifying agent is one or two kinds of combinations of poly- α alkene, polyacrylate；Anti-foaming agent is the one of methyl-silicone oil, acrylic acid and ether copolymer
Kind or two kinds of combinations；Demulsifier is PEO-polypropylene oxide.
5. a kind of preparation method of carboxyl-functional graphene lubricating oil as any one of claim 1-4, its feature
It is：
（1）Functional modification will be carried out positioned at the carboxyl at graphene oxide layer edge by molecule and construction design method, drawn
Enter the silane coupled part and higher fatty acid salt of amino-contained, and graphene oxide is reduced using graphene oxide reduction technique and made
Obtain the carboxyl-functional graphene of silane coupled part and higher fatty acid salt modification；
（2）Carboxyl-functional graphene, graphene base body dispersant and base oil are mixed, are heated to 60-70 DEG C, and at a high speed
Lubricating oil is added after stirring 20-40min, ultrasonic vibration 20-40min, then high-speed stirred 20-40min, ultrasonic vibration 20-40min
Additive, and high-speed stirred 20-40min is allowed to be sufficiently mixed, that is, obtains carboxyl-functional graphene lubricating oil.
A kind of 6. preparation method of carboxyl-functional graphene lubricating oil according to claim 5, it is characterised in that：It is described super
The frequency that acoustic shock is swung is 40-60kHZ, power 300-800W.
A kind of 7. preparation method of carboxyl-functional graphene lubricating oil according to claim 5, it is characterised in that：It is described super
The frequency that acoustic shock is swung is 50kHZ, power 500W.
A kind of 8. preparation method of carboxyl-functional graphene lubricating oil according to claim 5, it is characterised in that：The height
The mixing speed of speed stirring is 100-5000r/min.
A kind of 9. preparation method of carboxyl-functional graphene lubricating oil according to claim 5, it is characterised in that：The height
The mixing speed of speed stirring is 200-400r/min.
A kind of 10. preparation method of carboxyl-functional graphene lubricating oil according to claim 5, it is characterised in that：It is described
Mode of heating heated for electrical heating or water jacket.
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| CN108753425A (en) * | 2018-07-09 | 2018-11-06 | 合肥择浚电气设备有限公司 | A kind of preparation method of lube oil additive |
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| CN110835575A (en) * | 2019-09-14 | 2020-02-25 | 苏州东能达石墨烯科技有限公司 | Graphene engine oil antiwear agent and preparation method thereof |
| CN111849587A (en) * | 2020-08-14 | 2020-10-30 | 德杰(浙江)润滑科技有限公司 | Preparation method and process of lubricating oil additive |
| CN112111321A (en) * | 2020-05-29 | 2020-12-22 | 上海工程技术大学 | Functionalized graphene lubricant for metal plastic processing and preparation method thereof |
| CN112625776A (en) * | 2019-10-08 | 2021-04-09 | 中国石油化工股份有限公司 | Graphene compound for lubricating oil additive and preparation method and application thereof |
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