CN108913277A - 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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- CN108913277A CN108913277A CN201810825312.4A CN201810825312A CN108913277A CN 108913277 A CN108913277 A CN 108913277A CN 201810825312 A CN201810825312 A CN 201810825312A CN 108913277 A CN108913277 A CN 108913277A
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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
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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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
- C10M2201/082—Inorganic acids or salts thereof containing nitrogen
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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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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The present invention relates to lubricating oil fields, more particularly to a kind of modified graphene lubricating oil and preparation method thereof.A kind of modified graphene lubricating oil is by including that the raw material of following parts by weight is prepared：100 parts of base oil, 0.5-3 parts of modified graphene, 0.05-1 parts of nanometer monocrystalline yttrium-aluminium-garnet, 2-7 parts of dispersing agent, 0.5-2 parts of viscosity index improver, 0.5-2 parts of defoaming agent;The invention also discloses a kind of preparation methods of modified graphene lubricating oil.Modified graphene friction coefficient of lubricating oil prepared by the present invention is low, greasy property is good, system is uniformly dispersed and stablizes.
Description
Technical field
The present invention relates to lubricating oil fields, more particularly to a kind of modified graphene lubricating oil and preparation method thereof.
Background technique
With rapid development of economy, mechanical equipment in society using more and more extensive, it is well known that any machinery
All there is friction and wear in the operating of equipment, prolonged friction can cause irreversible injury to mechanical equipment, in the machine of reduction
Tool also will increase energy consumption while the service life.For guarantee equipment can be permanent normal operation, be typically necessary zero in movement
Lubricating oil is added between part, to reduce coefficient of friction, increases wear resistence, however, the height that plain oil is generated in high-speed friction
It is easy to happen oxidation under temperature effect, breakage, lubricating oil bad stability can occur for oil film, and carbon distribution and greasy filth can be increasing, from
And lubricating oil wearability is caused to significantly reduce；On the contrary, high-quality lubricating oil is expensive, it is not easy to promote the use of on a large scale, therefore
The resistance to wear-resistant lube oil additive of low cost has extensive research significance.
Graphene is made of the carbon atom in one layer of intensive crystal lattice, and thickness is only 0.35nm, is in the world
Most thin two-dimensional material.Due to its fabulous mechanical performance, graphene is used also as lubriation material.Graphene adds as lubricating oil
Add agent, to show good greasy property in friction process, not requiring nothing more than form and the number of plies suitably will also want to stablize
Be dispersed in lubricating oil, once occur mutually separate, graphene is easy for being difficult to play its greasy property because of reunion.
Therefore, for graphene lubricating oil field, the modified graphene of a kind of polymolecularity and excellent lubricating properties is developed
Lubricating oil is necessary.
Summary of the invention
For this purpose, the present invention provides a kind of modified graphene lubricating oil, it is prepared by the raw material for including following parts by weight：
100 parts of base oil, 0.5-3 parts of modified graphene, 0.05-1 parts of nanometer monocrystalline yttrium-aluminium-garnet, 2-7 parts of dispersing agent, viscosity
0.5-2 parts of index improver, 0.5-2 parts of defoaming agent.
Preferably, a kind of modified graphene lubricating oil is prepared by the raw material for including following parts by weight：
100 parts of base oil, 1-2 parts of modified graphene, 0.1-0.5 parts of nanometer monocrystalline yttrium-aluminium-garnet, 3-5 parts of dispersing agent, viscosity
1-2 parts of index improver, 1-2 parts of defoaming agent.
In a kind of technical solution, the modified graphene and nanometer monocrystalline yttrium-aluminium-garnet weight ratio are 8:(1-3), it is excellent
It is selected as weight ratio 4:1.
The dispersing agent described in a kind of technical solution is boronation ashless dispersant T151, boron modification succimide is sour, benzyl
One of amine dispersant Amoco9250 or a variety of.
The viscosity index improver described in a kind of technical solution is hy drogenated styrene-diene copolymer SV250, SV140's
Mixture.
The defoaming agent described in a kind of technical solution is silicone oil type defoaming agent T903, atoleine, one in silicone emulsion
Kind is a variety of.
In a kind of technical solution：The nanometer monocrystalline yttrium-aluminium-garnet partial size is 20-40nm.
A kind of preparation method of the modified graphene described in technical solution includes the following steps：
（1）Using potassium nitrate crystals as template, glucose is carbon source, wherein 99.5 parts of 0.05 parts by weight of potassium nitrate of glucose, will
After potassium nitrate mixes drying with glucose solution, it is ground into the powder that partial size is 10-50 μm, obtains the nitre of biomass carbon source cladding
Sour potassium crystal complex；
（2）By the potassium nitrate crystals compound of obtained biomass carbon source cladding, high temperature cabonization, carbonization are warm under protection of argon gas
Degree is 780 DEG C, carbonization time 2h, and heating rate is 1 DEG C/min, and the potassium nitrate crystals for obtaining graphene nanometer sheet package are compound
Object；
（3）The potassium nitrate crystals compound of graphene nanometer sheet package is put into centrifuge tube, adds water ultrasound centrifuge washing 3 times, so
100 DEG C of drying afterwards, obtain graphene nanometer sheet powder；
（4）Graphene nanometer sheet powder is added to sulfuric acid and hydrochloric acid volume ratio is 4:In 1 nitration mixture, nitration mixture is 95 parts by weight,
Graphene nanometer sheet is 5 parts by weight, then ultrasonic 15min is used water centrifuge washing 5 times, dry obtained by drying to modified graphene.
In a kind of technical solution, the preparation method of the nanometer monocrystalline yttrium-aluminium-garnet includes the following steps：
（1）The aluminum nitrate of the yttrium nitrate and 6mol that weigh 3mol is added in 100mLPEG200, is heated slowly to 60 DEG C and stirs
60min is then cooled to room temperature.
（2）To step（1）In anhydrous ethylenediamine is added while stirring, and be heated to 80 DEG C, keep 1h, be cooled to room temperature.
（3）By step（2）In material pour into polytetrafluoroethyllining lining single-chamber, keep compactedness 75%, and be packed into stainless
In steel hydrothermal reaction kettle, it is put into baking oven, is maintained at 300 DEG C for 24 hours, cooled to room temperature.
（4）By step（3）Obtained product centrifuge separation, after alternately cleaning centrifuge separation with methanol and deionized water,
3h is dried at 100 DEG C obtains nanometer monocrystalline yttrium-aluminium-garnet particle.
On the other hand, the present invention discloses a kind of preparation methods of modified graphene lubricating oil, which is characterized in that including such as
Lower step：
（1）Raw material is weighed according to the weight ratio, takes the base oil of a moiety, and dispersing agent is added and mixes with defoaming agent, in 3000rpm
Shear-mixed 30min obtains component A under revolving speed；
（2）Remaining moiety base oil is taken, graphene and nanometer monocrystalline yttrium-aluminium-garnet is added, is sheared under 5000rpm revolving speed
2h is mixed, B component is obtained after homogenizing, the process to homogenize is：First in the case where pressure is 50MPa homogenisation cycle 8 times, then
Pressure is homogenisation cycle 10 times under 70MPa, and twice homogenization temperature is 50-70 DEG C.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1h, addition viscosity index improver improvement viscosity is extremely identical as Basic oil Viscosity on the way, obtains modified graphene lubricating oil.
Compared with prior art, beneficial effects of the present invention are：
（1）On the basis of existing technology, the modified graphene and nanometer monocrystalline yttrium-aluminium-garnet of proper ratio is added in the present invention,
The coefficient of friction for reducing lubricating oil improves the greasy property of lubricating oil；
（2）The present invention uses potassium nitrate crystals to be prepared for graphene for template, and modified to its surface with nitration mixture, improve its
Lubricate the greasy property in oil systems；
（3）The dispersing agent with defoaming agent of specific ratio can guarantee that graphene and nanometer monocrystalline yttrium-aluminium-garnet are equal in the present invention
It is even to be scattered in lubrication oil systems, prepare the good lubricating oil of greasy property；
The above-mentioned of the application and other features, aspects and advantages are more readily understood with reference to following detailed description.
Specific embodiment
The detailed description for preferred implementation method of the invention below of participating in the election of and including embodiment this hair can be more easily to understand
Bright content.Unless otherwise defined, all technologies used herein and scientific term have common with field of the present invention
The normally understood identical meaning of technical staff.When there is a conflict, the definition in this specification shall prevail.
Hereinafter, the present invention will be described in more detail by embodiment, it should be appreciated that these embodiments are only
Be illustrate and not restrictive.If all raw materials are all commercially available without specified otherwise.
Nanometer monocrystalline yttrium-aluminium-garnet used is prepared by following steps in all embodiments：
（1）The aluminum nitrate of the yttrium nitrate and 6mol that weigh 3mol is added in 100mLPEG200, is heated slowly to 60 DEG C and stirs
60min is then cooled to room temperature.
（2）To step（1）In anhydrous ethylenediamine is added while stirring, and be heated to 80 DEG C, keep 1h, be cooled to room temperature.
（3）By step（2）In material pour into polytetrafluoroethyllining lining single-chamber, keep compactedness 75%, and be packed into stainless
In steel hydrothermal reaction kettle, it is put into baking oven, is maintained at 300 DEG C for 24 hours, cooled to room temperature.
（4）By step（3）Obtained product centrifuge separation, after alternately cleaning centrifuge separation with methanol and deionized water,
3h is dried at 100 DEG C obtains nanometer monocrystalline yttrium-aluminium-garnet particle.
The preparation method of modified graphene used includes the following steps in all embodiments：
（1）Using potassium nitrate crystals as template, glucose is carbon source, wherein 99.5 parts of 0.05 parts by weight of potassium nitrate of glucose, will
After potassium nitrate mixes drying with glucose solution, it is ground into the powder that partial size is 10-50 μm, obtains the nitre of biomass carbon source cladding
Sour potassium crystal complex；
（2）By the potassium nitrate crystals compound of obtained biomass carbon source cladding, high temperature cabonization, carbonization are warm under protection of argon gas
Degree is 780 DEG C, carbonization time 2h, and heating rate is 1 DEG C/min, and the potassium nitrate crystals for obtaining graphene nanometer sheet package are compound
Object；
（3）The potassium nitrate crystals compound of graphene nanometer sheet package is put into centrifuge tube, adds water ultrasound centrifuge washing 3 times, so
100 DEG C of drying afterwards, obtain graphene nanometer sheet powder；
（4）Graphene nanometer sheet powder is added to sulfuric acid and hydrochloric acid volume ratio is 4:In 1 nitration mixture, nitration mixture is 95 parts by weight,
Graphene nanometer sheet is 5 parts by weight, then ultrasonic 15min is used water centrifuge washing 5 times, dry obtained by drying to modified graphene.
Embodiment 1
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.4 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 2
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 0.5 part by weight modified graphene and 0.05 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 3
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1 part by weight modified graphene and 0.375 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 4
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 2 part by weight modified graphenes and 0.75 parts by weight nanometer monocrystalline yttroalumite is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First in pressure
For homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55 DEG C,
65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 5
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 3 part by weight modified graphenes and 1 parts by weight nanometer monocrystalline yttroalumite pomegranate is added
Stone, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First it is in pressure
Homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55 DEG C, 65
℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 6
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes, the shear-mixed under 5000rpm revolving speed is added
2h, obtains B component after homogenizing, the process to homogenize is：First in the case where pressure is 50MPa homogenisation cycle 8 times, then in pressure
For homogenisation cycle 10 times under 70MPa, twice homogenization temperature is respectively 55 DEG C, 65 DEG C.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 7
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.05 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 8
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.1 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 9
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1 part by weight modified graphene and 0.5 parts by weight nanometer monocrystalline yttroalumite is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First in pressure
For homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55 DEG C,
65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 10
（1）The base oil of 50 parts by weight is taken, 1 parts by weight boronation ashless dispersant T151,1 parts by weight boron modification succinyl is added
Imidic acid is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is sheared under 3000rpm revolving speed mixed
It closes 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.4 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 11
（1）The base oil of 50 parts by weight is taken, 1 parts by weight boron modification succimide acid and 1 parts by weight benzylamine dispersing agent is added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.4 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 12
（1）The base oil of 50 parts by weight is taken, 1 parts by weight boronation ashless dispersant T151,2 parts by weight benzylamine dispersing agents is added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.4 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 13
（1）The base oil of 50 parts by weight is taken, 3 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.4 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 14
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,5 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.4 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 15
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.4 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250 is added on the way, obtains modified graphene lubricating oil by 1h.
Embodiment 16
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.4 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
0.5 parts by weight of hydrogenated styrene diene copolymer SV140 is added on the way, obtains modified graphene lubricating oil by 1h.
Embodiment 17
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.4 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,1 parts by weight of hydrogenated styrene diene copolymer SV140 is added in 1h on the way,
Obtain modified graphene lubricating oil.
Embodiment 18
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.3 parts by weight silicone oil type defoaming agent T903,0.2 parts by weight silicone emulsion, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.4 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 19
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.5 part by weight of liquid paraffin, 0.5 parts by weight silicone emulsion, the shear-mixed under 3000rpm revolving speed
30min obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.4 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Embodiment 20
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 1 parts by weight silicone oil type defoaming agent T903,1 part by weight of liquid paraffin, is sheared under 3000rpm revolving speed mixed
It closes 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 1.6 part by weight modified graphenes and 0.4 parts by weight nanometer monocrystalline yttrium aluminium is added
Garnet, the shear-mixed 2h under 5000rpm revolving speed obtain B component after homogenizing, the process to homogenize is：First pressing
Power is homogenisation cycle 8 times under 50MPa, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55
℃,65℃.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Comparative example 1
（1）The base oil of 50 parts by weight is taken, 2 parts by weight boronation ashless dispersant T151,3 parts by weight benzylamine dispersing agents are added
Amoco9250 is mixed with 0.4 parts by weight silicone oil type defoaming agent T903,0.8 part by weight of liquid paraffin, is cut under 3000rpm revolving speed
It cuts mixing 30min and obtains component A；
（2）Remaining 50 parts by weight of base oil is taken, 0.4 parts by weight nanometer monocrystalline yttrium-aluminium-garnet is added, under 5000rpm revolving speed
Shear-mixed 2h, obtains B component after homogenizing, the process to homogenize is：First in the case where pressure is 50MPa homogenisation cycle 8 times,
Again in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization temperature is respectively 55 DEG C, 65 DEG C.；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1 parts by weight of hydrogenated styrene diene copolymer SV250,0.5 parts by weight of hydrogenated styrene diene copolymer is added in 1h on the way
SV140 obtains modified graphene lubricating oil.
Oil is without any processing based on comparative example 2
Frictional behaviour test method
On Optimol SRV-4 friction wear testing machine to the tribological property in prepared modified graphene lubricating oil into
Row evaluation.Test condition is：Friction test test specimen makes an inventory contact mode, ball element and diskware material using ball-as 100Cr6 steel.It surveys
Try load 200N, temperature 50 C, time 1h, frequency 50Hz, reciprocating friction stroke 1mm.Using blank base oil as comparative example 2.
Table 1 shows a kind of test result of modified graphene lubricating oil prepared by each embodiment.
| Pour point（℃） | Flash-point（℃） | Zeta potential（mv） | Coefficient of friction | Wear scar diameter（μm） | |
| Embodiment 1 | -65 | 257 | 124 | 0.101 | 352 |
| Embodiment 2 | -54 | 245 | 116 | 0.113 | 457 |
| Embodiment 3 | -52 | 243 | 113 | 0.112 | 452 |
| Embodiment 4 | -54 | 246 | 115 | 0.115 | 454 |
| Embodiment 5 | -50 | 232 | 112 | 0.118 | 489 |
| Embodiment 6 | -50 | 235 | 114 | 0.129 | 571 |
| Embodiment 7 | -53 | 244 | 115 | 0.122 | 499 |
| Embodiment 8 | -52 | 242 | 114 | 0.115 | 466 |
| Embodiment 9 | -52 | 243 | 113 | 0.117 | 471 |
| Embodiment 10 | -50 | 231 | 107 | 0.121 | 481 |
| Embodiment 11 | -51 | 236 | 109 | 0.118 | 474 |
| Embodiment 12 | -49 | 231 | 111 | 0.125 | 513 |
| Embodiment 13 | -52 | 242 | 113 | 0.121 | 497 |
| Embodiment 14 | -49 | 228 | 114 | 0.118 | 491 |
| Embodiment 15 | -46 | 224 | 110 | 0.128 | 571 |
| Embodiment 16 | -44 | 220 | 111 | 0.131 | 587 |
| Embodiment 17 | -48 | 226 | 113 | 0.128 | 569 |
| Embodiment 18 | -50 | 229 | 107 | 0.121 | 492 |
| Embodiment 19 | -48 | 227 | 109 | 0.119 | 485 |
| Embodiment 20 | -47 | 226 | 106 | 0.123 | 507 |
| Comparative example 1 | -47 | 227 | 103 | 0.129 | 570 |
| Comparative example 2 | -34 | 210 | 37 | 0.147 | 586 |
Example above-mentioned is merely illustrative, and is used to explain the present invention some features of the method.Appended right is wanted
The range as wide as possible for being intended to require to be contemplated that is sought, and embodiments as presented herein is only according to all possible implementation
The explanation of the embodiment of the combined selection of example.Therefore, the purpose of applicant is that the attached claims are not illustrated this hair
The exemplary selectional restriction of bright feature.Some numberical ranges used also include sub- model in the claims
It encloses, the variation in these ranges should also be construed to be covered by the attached claims in the conceived case.
Claims (10)
1. a kind of modified graphene lubricating oil, which is characterized in that be prepared by the raw material for including following parts by weight：
100 parts of base oil, 0.5-3 parts of modified graphene, 0.05-1 parts of nanometer monocrystalline yttrium-aluminium-garnet, 2-7 parts of dispersing agent, viscosity
0.5-2 parts of index improver, 0.5-2 parts of defoaming agent.
2. a kind of modified graphene lubricating oil as described in claim 1, which is characterized in that by the raw material including following parts by weight
It is prepared：
100 parts of base oil, 1-2 parts of modified graphene, 0.1-0.5 parts of nanometer monocrystalline yttrium-aluminium-garnet, 3-5 parts of dispersing agent, viscosity
1-2 parts of index improver, 1-2 parts of defoaming agent.
3. a kind of modified graphene lubricating oil as claimed in claim 1 or 2, it is characterised in that：The modified graphene and list
Brilliant nanometer yttrium aluminum garnet weight ratio is 8:(1-3), preferably weight ratio 4:1.
4. a kind of modified graphene lubricating oil as described in claim 1, it is characterised in that：The dispersing agent is boronation ashless point
One of powder T151, boron modification succimide acid, benzylamine dispersant A moco9250 or a variety of.
5. a kind of modified graphene lubricating oil as described in claim 1, it is characterised in that：The viscosity index improver is hydrogen
Change the mixture of styrene diene copolymer SV250, SV140.
6. a kind of modified graphene lubricating oil as described in claim 1, it is characterised in that：The defoaming agent is the defoaming of silicone oil type
One of agent T903, atoleine, silicone emulsion are a variety of.
7. a kind of modified graphene lubricating oil as described in claim 1, it is characterised in that：The nanometer monocrystalline yttrium-aluminium-garnet
Partial size is 20-40nm.
8. a kind of modified graphene lubricating oil as described in claim 1, which is characterized in that the preparation side of the modified graphene
Method includes the following steps：
（1）Using potassium nitrate crystals as template, glucose is carbon source, wherein 99.5 parts of 0.05 parts by weight of potassium nitrate of glucose, will
After potassium nitrate mixes drying with glucose solution, it is ground into the powder that partial size is 10-50 μm, obtains the nitre of biomass carbon source cladding
Sour potassium crystal complex；
（2）By the potassium nitrate crystals compound of obtained biomass carbon source cladding, high temperature cabonization, carbonization are warm under protection of argon gas
Degree is 780 DEG C, carbonization time 2h, and heating rate is 1 DEG C/min, and the potassium nitrate crystals for obtaining graphene nanometer sheet package are compound
Object；
（3）The potassium nitrate crystals compound of graphene nanometer sheet package is put into centrifuge tube, adds water ultrasound centrifuge washing 3 times, so
100 DEG C of drying afterwards, obtain graphene nanometer sheet powder；
（4）Graphene nanometer sheet powder is added to sulfuric acid and hydrochloric acid volume ratio is 4:In 1 nitration mixture, nitration mixture is 95 parts by weight,
Graphene nanometer sheet is 5 parts by weight, then ultrasonic 15min is used water centrifuge washing 5 times, dry obtained by drying to modified graphene.
9. such as claim 1,2, a kind of described in any item preparation methods of modified graphene lubricating oil of 4-8, which is characterized in that
Include the following steps：
（1）Raw material is weighed according to the weight ratio, takes the base oil of a moiety, and dispersing agent is added and mixes with defoaming agent, in 3000rpm
Shear-mixed 30min obtains component A under revolving speed；
（2）Remaining moiety base oil is taken, graphene and nanometer monocrystalline yttrium-aluminium-garnet is added, is sheared under 5000rpm revolving speed
2h is mixed, obtains B component after homogenizing；
（3）By step（1）Obtained component A and step（2）Obtained B component mixing, shears under 4000rpm revolving speed and reconciles
1h, addition viscosity index improver improvement viscosity is extremely identical as Basic oil Viscosity on the way, obtains modified graphene lubricating oil.
10. a kind of preparation method of modified graphene lubricating oil as claimed in claim 9, which is characterized in that described to homogenize
Process be：First in the case where pressure is 50MPa homogenisation cycle 8 times, then in the case where pressure is 70MPa homogenisation cycle 10 times, twice homogenization
Changing temperature is 50-70 DEG C.
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