CN110295078A - A kind of functional graphene/montmorillonite/modified molybdenum sulphide lube oil additive - Google Patents
A kind of functional graphene/montmorillonite/modified molybdenum sulphide lube oil additive Download PDFInfo
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- CN110295078A CN110295078A CN201910650394.8A CN201910650394A CN110295078A CN 110295078 A CN110295078 A CN 110295078A CN 201910650394 A CN201910650394 A CN 201910650394A CN 110295078 A CN110295078 A CN 110295078A
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- graphene oxide
- lube oil
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- oil additive
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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
- C10M125/00—Lubricating compositions characterised by the additive being an inorganic 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
- 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
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
-
- 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
- C10M2201/103—Clays; Mica; Zeolites
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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
- C10M2201/14—Inorganic compounds or elements as ingredients in lubricant compositions inorganic compounds surface treated with organic compounds
-
- 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
- C10N2030/04—Detergent property or dispersant property
-
- 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)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a kind of functional graphene/montmorillonite/modified molybdenum sulphide lube oil additives, the raw material of the lube oil additive is graphene oxide, molybdenum sulfide, montmorillonite and silane coupling agent, graphene oxide and molybdenum sulfide are handled by using silane coupling agent, the two and montmorillonite Hybrid Heating are obtained the lube oil additive, wherein graphene oxide: molybdenum sulfide: the mass ratio of montmorillonite is 1:(0.25-4): (0.5-8).Tribological property test is carried out to the lube oil additive, few additive amount can be substantially reduced coefficient of friction, there is extremely excellent antifriction antiwear ability.
Description
Technical field
The present invention relates to lube oil additive technical field, especially a kind of functional graphene/montmorillonite/modified molybdenum sulphide
Lube oil additive.
Background technique
Chinese patent CN201711383769 discloses the lube oil additive of functionalization graphene load montmorillonite, preparation
Method and its application although the lube oil additive has extremely excellent dispersion performance in lubricating oil, and have certain
Antifriction repair ability, but its coefficient of friction reduce it is low not enough.
Molybdenum disulfide (MoS2) it is a kind of typical transient metal sulfide, by one layer of molybdenum atom group among two layers of sulphur atom
At formation sandwich is a kind of excellent lubriation material, is widely used in lubricating solution additive, self-lubricating coat in use and solid
The fields such as lubricant [it is printed when Shi Kaifeng, Xie Feng tungsten disulfide lubricating additive tribological Properties status chemical industry, 2017,
31 (12): 36-39.], although molybdenum sulfide has excellent antifriction performance, its coefficient of friction is dropped low not enough, is also had no
Report that it has repair ability for rubbing surface.And vulcanize molybdenum composite material since its unique application advantage has obtained technology
On attention, it not only maintains the excellent performance of raw material, but also effectively overcomes the defect of homogenous material.System of the present invention
Standby functional graphene/montmorillonite/modified molybdenum sulphide composite lube additive combines the excellent performance of three kinds of materials, not only
It can be effectively reduced coefficient of friction, reduce the damage of wear surface；And one layer of selfreparing film is formed in friction surface, especially
Due to the introducing of graphene, the compare pair that rubs of the hardness of the reparation film has significant raising, to rubbing surface have more into
One step protective capability is to keep rubbing surface more wear-resistant.
Summary of the invention
The purpose of the present invention is to provide a kind of functional graphene/montmorillonite/modified molybdenum sulphide lube oil additives, preparation
Method and its application.
To achieve the goals above The technical solution adopted by the invention is as follows: a kind of functional graphene/montmorillonite/modification sulphur
Change molybdenum lube oil additive, be 1:(0.25-4 by mass ratio): the function graphene oxide of (0.5-8), modified molybdenum sulphide and illiteracy
De- soil mixes.
Above-mentioned lube oil additive is prepared by following steps:
(1) using graphene oxide as raw material, the dispersion liquid of graphene oxide is prepared, silane coupling agent is added in 25-100
1-6h is reacted at DEG C, obtains function graphene oxide after separation, cleaning；
(2) silane coupling agent is added in the dispersion liquid of molybdenum sulfide, 1-8h is reacted at 25-100 DEG C, separation, cleaning obtain
Modified molybdenum sulphide；
(3) 0.5-2h is mixed in the dispersion liquid of modified molybdenum sulphide, montmorillonite and function graphene oxide, in 100-
1-5h is reacted at 180 DEG C, obtains the lube oil additive after separation, cleaning.
Preferably, in step (1) and step (2), in silane coupling agent A-1100, A-1110, A-1120, KBM-602
Any one.
Preferably, in step (1), the mass ratio of graphene oxide and silane coupling agent is 1:24-200.
Preferably, in step (2), the mass ratio of molybdenum sulfide and silane coupling agent is 1:50-200.
Preferably, graphene oxide, molybdenum sulfide and the mass ratio of montmorillonite are 1:(0.25-4): (0.5-8).
Preferably, in step (1)-(3), the dispersion liquid of graphene oxide, the dispersion liquid of molybdenum sulfide and function graphite oxide
In the dispersion liquid of alkene, the dispersing agent in each dispersion liquid is identical, including ethyl alcohol or water.
Preferably, in step (1)-(3), the heating means be heated at reflux or autoclave heating reaction.
The application of above-mentioned functional graphene/montmorillonite/vulcanization molybdenum lube oil additive, the additive are dense in lubricating oil
Degree is 0.011-0.133wt%；The lubricating oil can be the lubricating oil of any brand, as the Kunlun scorpio F5000, SF15W-40
Type lubricating oil and Great Wall SJ10W-40 lubricating oil etc. are also possible to base oil as mineral base oil or synthetic base oil.
By above-mentioned technical proposal, functional graphene/montmorillonite/modified molybdenum sulphide lube oil additive prepared by the present invention
It has the advantages that
1) easy to operate, raw material is easy to get, and cost is relatively low.
2) three components in additive are that chemical bonding is grown together, it is suppressed that aggregation when single use has excellent
Different dispersion stabilization and strong mutual synergistic effect.
3) three components all have certain anti-friction effect in additive, due to the outstanding mechanical performance of graphite olefinic constituent,
Composite material not only has significant antiwear and antifriction effect and intelligent repair, can also effectively improve the hardness of wear surface.
Detailed description of the invention
Fig. 1 is functional graphene/montmorillonite/modified molybdenum sulphide composite material lube oil additive preparation flow figure.
Specific embodiment
The following are the detailed descriptions that specific implementation example carries out the present invention, but embodiment does not do any shape to the present invention
The restriction of formula.
In conjunction with Fig. 1, functional graphene/montmorillonite of the present invention/modified molybdenum sulphide composite material lube oil additive
Preparation process provided by following examples.
Embodiment one
(1) firstly, the aqueous dispersions 160g for the graphene oxide that preparation concentration is 0.025wt%.Then, it is added 6mL's
Silane coupling agent (A-1100), at room temperature magnetic agitation 1h.It is finally transferred in flask, 80 DEG C of water-bath 2h.Separation, cleaning
The aqueous dispersions that appropriate amount of deionized water obtains function graphene oxide are added afterwards.
(2) it weighs after 0.04g molybdenum sulfide adds water and stirs uniformly, obtains the aqueous dispersions of molybdenum sulfide, it is silane coupled that 6mL is added
1h, 80 DEG C of heating 2h are stirred in agent (A-1100) at room temperature, and separation, cleaning obtain modified molybdenum sulphide.
(3) aqueous dispersions of above-mentioned modified molybdenum sulphide, 0.16g montmorillonite and above-mentioned function graphene oxide is taken to be mixed
1h；120 DEG C of hydro-thermal reaction 4h in reaction kettle are transferred to, cooling is stood；Separation, cleaning, it is de- to be dried to obtain functional graphene/illiteracy
Soil/modified molybdenum sulphide composite material lube oil additive.
(4) tribological property is evaluated
By functional graphene/montmorillonite/modified molybdenum sulphide composite material lube oil additive obtained and the Kunlun scorpio
SF15W-40 lubricating oil mixes in varing proportions.Friction-wear test is carried out using MRS-10G four-ball friction and wear test machine, is adopted
It is 770HV with hardness, diameter is that the GCr steel ball of 12.7mm is tested.Test condition: load 197N, revolving speed 600rpm, test
Time 3600s.The coefficient of friction and wear scar diameter of lube oil additive under various concentration in this example are given in table 1, and
Simple graphene oxide, montmorillonite, the molybdenum sulfide test result when concentration is 0.044wt% are given in order to compare, it is seen that
Compared to composite material lube oil additive made from one-component material have excellent greasy property, coefficient of friction compared to
Simple lubricating oil can reduce about 62.50%, and wear scar diameter reduces about 18.18%.It is shown simultaneously for mill spot surface
Microhardness test, test result are given in Table 2, it is seen that the hardness on spot surface is ground in the use of composite material lube oil additive
It itself improves 16.88% compared to steel ball.
Embodiment two
(1) firstly, the aqueous dispersions 160g for the graphene oxide that preparation concentration is 0.025wt%.Then, it is added 1mL's
Silane coupling agent (A-1110) reacts 5h at 25 DEG C.Appropriate amount of deionized water is added after separation, cleaning and obtains function graphene oxide
Aqueous dispersions.
(2) it weighs after 0.01g molybdenum sulfide adds water and stirs uniformly, obtains the aqueous dispersions of molybdenum sulfide, it is even that 0.5mL silane is added
Join agent (A-1110) 25 DEG C of reaction 8h, separation, cleaning obtain modified molybdenum sulphide.
(3) aqueous dispersions of above-mentioned modified molybdenum sulphide, 0.02g montmorillonite and above-mentioned function graphene oxide is taken to be mixed
0.5h；200 DEG C of hydro-thermal reaction 1h in autoclave are transferred to, cooling is stood；Separation, cleaning, it is de- to be dried to obtain functional graphene/illiteracy
Soil/modified molybdenum sulphide composite material lube oil additive.
(4) tribological property is evaluated
By functional graphene/montmorillonite/modified molybdenum sulphide composite material lube oil additive obtained and the Kunlun scorpio
SF15W-40 lubricating oil is mixed with 0.044wt%.Friction-wear test is carried out using MRS-10G four-ball friction and wear test machine,
It is tested using the GCr steel ball of hardness 770HV, diameter 12.7mm.Test condition: 197N, revolving speed 600rpm, time are loaded
3600s.Test result is given in Table 1.
Embodiment three
(1) firstly, the alcohol dispersion liquid 160g for the graphene oxide that preparation concentration is 0.025wt%.Then, 8mL is added
Silane coupling agent (A-1120), 80 DEG C of back flow reaction 1h.Ethanol in proper amount is added after separation, cleaning and obtains function graphene oxide
Alcohol dispersion liquid.
(2) it weighs 0.16g molybdenum sulfide and adds ethyl alcohol after mixing evenly, obtain the alcohol dispersion liquid of molybdenum sulfide, 16mL silicon is added
60 DEG C of reaction 3h of alkane coupling agent (A-1120), separation, cleaning obtain modified molybdenum sulphide.
(3) it takes the alcohol dispersion liquid of above-mentioned modified molybdenum sulphide, 0.32g montmorillonite and above-mentioned function graphene oxide to mix to stir
Mix 2h；100 DEG C of heating reflux reaction 5h in flask are transferred to, cooling is stood；Separation, cleaning, are dried to obtain functional graphene/illiteracy
De- soil/modified molybdenum sulphide composite material lube oil additive.
(4) tribological property is evaluated
By functional graphene/montmorillonite/modified molybdenum sulphide composite material lube oil additive obtained and the Kunlun scorpio
SF15W-40 lubricating oil is mixed with 0.044wt%.Friction-wear test is carried out using MRS-10G four-ball friction and wear test machine,
It is tested using the GCr steel ball of hardness 770HV, diameter 12.7mm.Test condition: 197N, revolving speed 600rpm, time are loaded
3600s.Test result is given in Table 1.
Example IV
(1) firstly, the alcohol dispersion liquid 160g for the graphene oxide that preparation concentration is 0.025wt%.Then, 3mL is added
Silane coupling agent (KBM-602), be transferred to 95 DEG C of reaction 4h of autoclave.Ethanol in proper amount is added after separation, cleaning separation, cleaning
Obtain the alcohol dispersion liquid of function graphene oxide.
(2) weigh 0.08g molybdenum sulfide add ethyl alcohol stirring it is super it is uniform after, obtain the alcohol dispersion liquid of molybdenum sulfide, addition 16mL
Silane coupling agent (KBM-602) is transferred to 100 DEG C of reaction 1h of reaction kettle, and separation, cleaning obtain modified molybdenum sulphide.
(3) it takes the alcohol dispersion liquid of above-mentioned modified molybdenum sulphide, 0.24g montmorillonite and above-mentioned function graphene oxide to mix to stir
Mix 2h；150 DEG C of reaction 5h of autoclave are transferred to, cooling is stood；Separation, cleaning, are dried to obtain functional graphene/montmorillonite/and change
Property vulcanization molybdenum composite material lube oil additive.
(4) tribological property is evaluated
By functional graphene/montmorillonite/modified molybdenum sulphide composite material lube oil additive obtained and the Kunlun scorpio
SF15W-40 lubricating oil is mixed with 0.044wt%.Friction-wear test is carried out using MRS-10G four-ball friction and wear test machine,
It is tested using the GCr steel ball of hardness 770HV, diameter 12.7mm.Test condition: 197N, revolving speed 600rpm, time are loaded
3600s.Test result is given in Table 1.
1 different additive of table coefficient of friction and wear scar diameter in lubricating oil
Table 2 grinds spot surface microhardness test result
Claims (9)
1. a kind of functional graphene/montmorillonite/modified molybdenum sulphide lube oil additive, the additive is 4 by mass ratio:
1-16: 2-32 function graphene oxide, modified molybdenum sulphide and montmorillonite mixes.
2. lube oil additive as described in claim 1, which is characterized in that prepared by following steps:
(1) using graphene oxide as raw material, the dispersion liquid of graphene oxide is prepared, silane coupling agent is added in 25-100 DEG C
Lower reaction 1-6 h obtains function graphene oxide after separation, cleaning；
(2) silane coupling agent is added in the dispersion liquid of molybdenum sulfide, 1-8h is reacted at 25-100 DEG C, separation, cleaning are modified
Molybdenum sulfide；
(3) 0.5-2 h is mixed in the dispersion liquid of modified molybdenum sulphide, montmorillonite and function graphene oxide, in 100-180
1-5 h is reacted at DEG C, and the lube oil additive is obtained after cleaning.
3. lube oil additive as claimed in claim 2, which is characterized in that in step (1) and step (2), silane coupling agent
For any one in A-1100, A-1110, A-1120, KBM-602.
4. lube oil additive as claimed in claim 2, which is characterized in that in step (1), graphene oxide with it is silane coupled
The mass ratio of agent is 1:24-200.
5. lube oil additive as claimed in claim 2, which is characterized in that in step (2), molybdenum sulfide and silane coupling agent
Mass ratio is 1:50-200.
6. lube oil additive as claimed in claim 2, which is characterized in that point of the dispersion liquid of graphene oxide, molybdenum sulfide
In the dispersion liquid of dispersion liquid and function graphene oxide, the dispersing agent in each dispersion liquid is identical, including ethyl alcohol or water.
7. the preparation method of lube oil additive as described in claim 1, which comprises the steps of:
(1) using graphene oxide as raw material, the dispersion liquid of graphene oxide is prepared, silane coupling agent is added in 25-100 DEG C
Lower reaction 1-6 h obtains function graphene oxide after separation, cleaning；
(2) silane coupling agent is added in the dispersion liquid of molybdenum sulfide, 1-8 h is reacted at 25-100 DEG C, separation, cleaning are changed
Property molybdenum sulfide；
(3) 0.5-2 h is mixed in the dispersion liquid of modified molybdenum sulphide, montmorillonite and function graphene oxide, in 100-180
DEG C heating reaction 1-5 h, the lube oil additive is obtained after cleaning.
8. the application of the lube oil additive as described in claim 1-6 is any, which is characterized in that the additive is in lubricating oil
Concentration is 0.011-0.133 wt%.
9. application as claimed in claim 8, which is characterized in that the lubricating oil include the Kunlun scorpio F5000 lubricating oil,
SF15W-40 type lubricating oil and Great Wall SJ10W-40 lubricating oil or mineral base oil, synthetic base oil.
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| CN111793519A (en) * | 2020-07-06 | 2020-10-20 | 安徽省赛威输送设备有限公司 | Degradable lubricating oil for conveyor |
| CN112662451A (en) * | 2021-02-21 | 2021-04-16 | 胡朝清 | Lubricating oil additive and preparation method thereof |
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| CN110295078B (en) | 2021-10-08 |
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