CN110016379A - A kind of modified graphene lubricating oil and preparation method thereof - Google Patents
A kind of modified graphene lubricating oil and preparation method thereof Download PDFInfo
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- CN110016379A CN110016379A CN201811577255.9A CN201811577255A CN110016379A CN 110016379 A CN110016379 A CN 110016379A CN 201811577255 A CN201811577255 A CN 201811577255A CN 110016379 A CN110016379 A CN 110016379A
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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
- C10M163/00—Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
-
- 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
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
-
- 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
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
A kind of modified graphene lubricating oil, component include silicate/graphene complex, dispersing agent, modifying agent and base oil；It is in preparation process, graphene ball is compound with silicate, obtain silicate/graphene oxide compound；Solvent is added in silicate/graphene oxide compound and modifying agent, is condensed back, obtains modified Portland/graphene complex；Modified Portland/graphene complex, dispersing agent, antioxidant are added in base oil step by step according to the ratio again, magnetic agitation, ultrasonic disperse obtains the good modified graphene lubricating oil of antifriction performance.By the way that modified Portland/fold graphene is added in base oil in the present invention, the reunion for reducing graphene stacks, the addition of silicate can further decrease the microscopic dimensions of fold graphene simultaneously, the nanoparticle for being attached to fold graphene surface can also play the effect of rolling friction, effectively promote its antifriction performance.
Description
Technical field
The invention belongs to technical field of lubricating oil, and in particular to a kind of modified graphene lubricating oil that antifriction performance is good and its
Preparation method.
Background technique
Friction is prevalent in the production and life of the mankind, and all places for having friction are necessarily accompanied with the mill of rubbing surface
Damage.According to statistics there are about 70% equipment damage be due to caused by various forms of abrasions, and lubricate be reduce abrasion, reduce
One of the most efficient method that rubs.Nano material has film strength high, has good prosthetic etc. to mechanical wear position
Advantage, into lubricating area after soon instead of conventional additive.Wherein graphene is optimal two-dimension nano materials, and
And be also most light, most thin, maximum intensity the material having found, with excellent self-lubrication, mechanical property and thermal stability
It is widely used as lube oil additive.But graphene film interlayer pi-pi bond active force is stronger, easy to reunite, it is difficult to be stably dispersed in oil
In medium, its effective use is limited.A kind of feasible method is exactly that graphene nanometer sheet curling fold is formed fold graphite
Alkene ball.Compared with flake graphite alkene, fold graphene ball makes graphene become point contact by original face contact, reduces contact
The Van der Waals force between particle is reduced while area, to achieve the purpose that inhibit graphene reunion (Xuan D, Andrew
R, Koltonowa, et al.Self-dispersed crumpled graphene balls in oil for friction
And wear reduction [J] .PNAS, 2015, Early Edition:1-6.).
Although inventor is the study found that can solve graphite for the fold graphene ball that graphene sheet layer curling fold is formed
The agglomeration traits of alkene, but the partial size of the fold graphene ball of common spray drying process preparation is larger, usually in 10~15 μ
Between m, anti-pressure ability is smaller, and antifriction performance is not obviously improved, and graphene must be simultaneously as a kind of lube oil additive
Realize anti-agglomeration and friction reducing effect (Zhang Shanshan, Zhao Jianguo, Zhang Jin, Xing Baoyan, Qian Rui, Cao Yu, Yang Xiaofeng, Wang Baojun fold stone
Influence [J] the Journal of Chemical Industry and Engineering .2018 of black alkene ball to lubricating oil frictional behaviour, 69 (10): 4479-4485.).Therefore how effectively
Raising fold graphene antifriction quality and anti-agglomeration to its become a kind of lube oil additive haveing excellent performance become outstanding
It is important.
Summary of the invention
For above situation, the purpose of the present invention is to provide a kind of modified graphene lubricating oil and preparation method thereof, make
Its antifriction quality with higher and anti-agglomeration.
To achieve the above object, the technical solution used in the present invention is: provide a kind of modified graphene lubricating oil and its
Preparation method.
A kind of modified graphene lubricating oil includes following component: silicate/graphene complex 0.001~2 by weight
Part, 0.5~2 part of dispersing agent, 0.05~2 part of modifying agent and 100 parts of base oil.
Silicate/the graphene complex include alumina silicate/graphene, ferrosilite/graphene, calcium silicates/graphene,
Magnesium silicate/graphene, alumina silicate/ferrosilite/graphene, alumina silicate/calcium silicates/graphene, alumina silicate/magnesium silicate/graphene,
Ferrosilite/calcium silicates/graphene, ferrosilite/magnesium silicate/graphene, any one in calcium silicates/magnesium silicate/graphene.
Preferably, the graphene in the silicate/graphene complex is fold graphene ball.
The dispersing agent is one of oleic acid, stearic acid, span-60, span-80 and fatty acid amine salt or a variety of.
The modifying agent is oleic acid, linoleic acid, linolenic acid, stearic acid, dodecanedioic acid, hexadecyl trimethoxy silicon
Any one or more in alkane, octadecylamine.
A kind of modified graphene lubricating oil preparation method that antifriction performance is good, includes the following steps:
(1) fold graphene oxide ball and silicate are added sequentially in distilled water according to different quality ratio, magnetic agitation makes
It is uniformly mixed, and the ultrasound removing for then carrying out a period of time at a certain temperature is compound, and freeze-drying obtains silicate/oxygen
Graphite alkene compound；
(2) silicate/graphene oxide compound obtained by step (1) and modifying agent are sequentially added in solvent, is condensed back to
Stream, obtains modified Portland/graphene complex；
(3) modified Portland/graphene complex, dispersing agent, antioxidant are added in base oil step by step according to the ratio, magnetic force stirs
It mixes, ultrasonic disperse, obtains the good modified graphene lubricating oil of antifriction performance.
Further, the mass ratio of fold graphene oxide ball described in step (1) and silicate is 10: 1~1: 1, magnetic force
Whipping temp is 30~60 DEG C, and the time is 0.5~2h, and sonication treatment time is 3~8h, and ultrasonic power is 50W~10kW, step
(2) it is 80~100 DEG C that temperature is condensed back in, and the time is 8~12h.
Ultrasound, which is carried out, with fold graphene using the silicate inorganic nanoparticle with higher hardness removes compound, nanometer
Particle can be evenly distributed on the fold lamella of graphene and piece interlayer, and nanoparticle may be implemented by high-intensitive ultrasound
High-frequency collision between graphene, hardness higher nanoparticle fold graphene can be carried out removing between layers with
And reduce its microscopic dimensions, while destroying active force between graphene layer, it further reduced the stacking of fold graphene sheet layer.
Using the minimum means of destruction that silicate inorganic nanoparticle is to graphene-structured and characteristic, and raw material is environmentally protective, price
It is cheap.
The beneficial effects of the present invention are: by the way that modified Portland/fold graphene is added in base oil, due to fold stone
Black alkene becomes face contact as point contact, and the reunion for reducing graphene stacks, while the addition of silicate can further decrease pleat
The microscopic dimensions of wrinkle graphene, partial size is about 2~5 μm, and the nanoparticle for being attached to fold graphene surface can also play
The effect of rolling friction, effectively promotes its antifriction performance, and average friction coefficient reduces 25% or more compared with base oil.
Detailed description of the invention
For the purpose, embodiment and beneficial effect that the present invention will be described in detail, the present invention provides following attached drawing:
Fig. 1 is fold graphene ball shape appearance figure；
Fig. 2 is modified magnesium silicate/fold graphene shape appearance figure；
Fig. 3 is coefficient of friction comparison diagram.
Specific embodiment
The present invention is described in detail below by embodiment.
Embodiment 1
It takes 0.20g fold graphene ball powder and 0.30g magnesium silicate to be added in solvent, carries out the magnetic agitation that temperature is 30 DEG C
0.5h, the ultrasound removing 3h that power is 200W, obtains magnesium silicate/graphene complex after freeze-drying.By 0.42g octadecylamine and
0.1g magnesium silicate/graphene is added in solvent, carries out 90 DEG C of condensing reflux 10h, filter it is dry after obtain modified magnesium silicate/
Graphene.Modified magnesium silicate/graphene, dispersing agent, base oil are prepared by 0.02: 0.15: 100, magnetic agitation and surpassed
Modified graphene lubricating oil is obtained after sound dispersion.
Embodiment 2
0.20g fold graphene ball powder, 0.01g magnesium silicate, 0.01 alumina silicate is taken to be added in solvent, carrying out temperature is 50 DEG C
Magnetic agitation 0.5h, power be 600W ultrasound removing 5h, it is compound that alumina silicate/magnesium silicate/graphene is obtained after freeze-drying
Object.3.5g hexadecyl trimethoxy silane and 0.1g alumina silicate/magnesium silicate/graphene are added in solvent, carry out 90 DEG C
Condensing reflux 10h, filter it is dry after obtain modified alumina silicate/magnesium silicate/graphene.It will modified alumina silicate/magnesium silicate/graphite
Alkene, dispersing agent, base oil are prepared by 0.05: 0.18: 100, and modified graphene profit is obtained after magnetic agitation and ultrasonic disperse
Lubricating oil.
Embodiment 3
0.20g fold graphene ball powder and 0.02g calcium silicates, 0.01g ferrosilite is taken to be added in solvent, carrying out temperature is 60
DEG C magnetic agitation 1.5h, power be 1000W ultrasound removing 8h, it is multiple that calcium silicates/ferrosilite/graphene is obtained after freeze-drying
Close object.0.87g stearic acid, 0.52g oleic acid, 0.1g calcium silicates/ferrosilite/graphene are added in solvent, carry out 80 DEG C
It is condensed back 12h, obtains modified calcium silicates/ferrosilite/graphene after filtering drying.It will modified calcium silicates/ferrosilite/graphite
Alkene, dispersing agent, base oil are prepared by 0.003: 0.11: 100, and modified graphene profit is obtained after magnetic agitation and ultrasonic disperse
Lubricating oil.
Selected fold graphene pattern in the present invention is as shown in Figure 1, use the silicate inorganic with higher hardness
It is compound that nanoparticle and fold graphene carry out ultrasound removing, can be evenly distributed on the fold lamella of graphene and lamella
Between, nanoparticle can carry out removing between layers to fold graphene and reduce its microscopic dimensions, destroy simultaneously
Active force between graphene layer further reduced the stacking of fold graphene sheet layer.Fold in modified magnesium silicate/fold graphene
Graphene becomes face contact as point contact, and the reunion for reducing graphene stacks, while the addition of silicate can further decrease
The microscopic dimensions of fold graphene, pattern are as shown in Figure 2.
The frictional behaviour of 1~3 modified graphene lubricating oil of example and lubricating base oils is compared, as a result such as Fig. 3 institute
Show.Fig. 3 coefficient of friction comparison diagram is the consecutive variations figure of one hour coefficient of internal friction, from the figure 3, it may be seen that the coefficient of friction of base oil
Much higher than the coefficient of friction of modified graphene lubricating oil in Examples 1 to 3, wherein the friction reducing effect of embodiment 2 is best, is averaged
Coefficient of friction reduces 25.47% compared with base oil.Friction co-efficient value is smaller, and mechanical wear is smaller, and the equipment effective time is longer.
Therefore, the antifriction performance of the modified graphene lubricating oil in the present invention is obviously improved compared to base oil, and energy prolonged mechanical is set
Standby service life, power savings advantages are obvious.
Claims (3)
1. a kind of modified graphene lubricating oil, it is characterised in that: by weight include following component: silicate/graphene is compound
0.001~2 part of object, 0.5~2 part of dispersing agent, 0.05~2 part of modifying agent and 100 parts of base oil；
Graphene in the silicate/graphene complex is fold graphene ball；
The dispersing agent is one of oleic acid, stearic acid, span-60, span-80 and fatty acid amine salt or a variety of；
The modifying agent is oleic acid, linoleic acid, linolenic acid, stearic acid, dodecanedioic acid, hexadecyl trimethoxy silane, ten
Any one or more in eight amine.
2. a kind of modified graphene lubricating oil according to claim 1, it is characterised in that: the silicate/graphene is multiple
Object is closed, alumina silicate/graphene, ferrosilite/graphene, calcium silicates/graphene, magnesium silicate/graphene, alumina silicate/silicic acid are selected
Iron/graphene, alumina silicate/calcium silicates/graphene, alumina silicate/magnesium silicate/graphene, ferrosilite/calcium silicates/graphene, silicic acid
Any one in iron/magnesium silicate/graphene, calcium silicates/magnesium silicate/graphene.
3. a kind of good modified graphene lubricating oil preparation method of antifriction performance, includes the following steps:
(1) fold graphene oxide ball and silicate are added sequentially in distilled water according to different quality ratio, magnetic agitation makes
It is uniformly mixed, and the ultrasound removing for then carrying out a period of time at a certain temperature is compound, and freeze-drying obtains silicate/oxygen
Graphite alkene compound；
(2) silicate/graphene oxide compound obtained by step (1) and modifying agent are sequentially added in solvent, is condensed back to
Stream, obtains modified Portland/graphene complex；
(3) modified Portland/graphene complex, dispersing agent, antioxidant are added in base oil step by step according to the ratio, magnetic force stirs
It mixes, ultrasonic disperse, obtains the good modified graphene lubricating oil of antifriction performance；
Further, the mass ratio of fold graphene oxide ball described in step (1) and silicate is 10: 1~1: 1, magnetic agitation
Temperature is 30~60 DEG C, and the time is 0.5~2h, and sonication treatment time is 3~8h, and ultrasonic power is 50W~10kW, step (2)
Middle condensing reflux temperature is 80~100 DEG C, and the time is 8~12h.
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Cited By (3)
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| CN111250708A (en) * | 2020-03-23 | 2020-06-09 | 广西科技大学 | Wear-resistant bushing for excavator and preparation method thereof |
| CN111996066A (en) * | 2020-07-14 | 2020-11-27 | 南宁职业技术学院 | Preparation method of cutting fluid for metal processing |
| CN113149831A (en) * | 2021-04-28 | 2021-07-23 | 中国矿业大学 | Preparation method of lanthanum stearate modified lubricating oil and application of lanthanum stearate modified lubricating oil in mine hoisting steel wire rope |
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Application publication date: 20190716 |