CN105670737A - Preparation method of graphene lubricating additive - Google Patents
Preparation method of graphene lubricating additive Download PDFInfo
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- CN105670737A CN105670737A CN201610110977.8A CN201610110977A CN105670737A CN 105670737 A CN105670737 A CN 105670737A CN 201610110977 A CN201610110977 A CN 201610110977A CN 105670737 A CN105670737 A CN 105670737A
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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
- C10M125/26—Compounds containing silicon or boron, e.g. silica, sand
- C10M125/30—Clay
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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
- C10M125/02—Carbon; Graphite
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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
- C10M2201/10—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
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
- C10N2020/06—Particles of special shape or size
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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
- C10N2030/04—Detergent property or dispersant property
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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Abstract
The invention provides a preparation method of a graphene lubricating additive. The preparation method comprises the following steps of adopting a biomass carbon source as a main raw material; performing high temperature carbonization to form a carbon source precursor with a porous structure; dispersing the carbon source precursor in a modified chitosan solution to improve the dispersing power of the material; shearing and peeling by a microfluidizer; crushing and breaking the carbon source by using a high-speed shearing action formed by a huge pressure gradient to form a graphene material; then stirring and mixing the graphene material with nano mircropore clay; enabling graphene to be uniformly dispersed in a micropore structure of nanoclay to improve the stability of the graphene and reduce the aggregation of the graphene; filtering and drying to obtain the graphene lubricating additive for lubricating oil. According to the graphene lubricating additive prepared by adopting a mechanical stripping method, structure defects are small; after the graphene lubricating additive is added into the lubricating oil, the graphene lubricating additive is high in dispersing power, is not easy to aggregate and good in lubricating effect; in addition, the whole preparation process has the advantages of safe and reliable process, low cost, environmental protection and significant market application value.
Description
Technical field
The present invention relates to grapheme material field, be particularly used for the grapheme material of lube oil additive, the preparation method particularly relating to a kind of Graphene lubricating additive.
Background technology
Graphene is a kind of two-dimensional material with monolayer carbon atomic layer separated from graphite material; be at present the thinnest in the world also it is the hardest nano material; there is the performances such as unique excellent electricity, calorifics, mechanics, receive significant attention at numerous areas such as the energy, electronic material, biomedicine and environmental conservation.
Lubricating oil is as a kind of oil product important, that technology content is significantly high, and range of application widely, will use by almost all of mechanical field. Lubricating oil is generally made up of base oil and additive two parts, and wherein additive is the marrow of lubricating oil, and the ratio of the quality of additive and performance and addition directly influences the serviceability of lubricating oil. Graphene has excellent heat conductivility and anti-wear and wear-resistant performance and chemical inertness so that it is be highly suitable as efficient, green lubricating additive, gives the tribological property that lubricant is excellent, and Graphene has become potential high-performance nano lubriation material. Therefore, using novel nano-material Graphene as lube oil additive, develop there is good abrasion resistance, high bearing capacity, lube product that mechanical surface has certain repair function have broad application prospects.
The at present existing relevant report that Graphene is used for lubricating additive, wherein graphene oxide or redox graphene owing to surface exists a large amount of oxygen-containing functional groups so that it is there is easily modified and hydrophilic feature, thus be subject to the favor of research worker. There is the Graphene that oxidation-reduction method is successfully prepared by some scientific workers to carry out surface modification, and added in lubricating base oil as nanometer additive, enhanced the antiwear and friction reduction property of lubricating oil to a certain extent.
The preparation method that China Patent Publication No. CN105296053A discloses Graphene lube oil additive, by graphene oxide solution centrifugation, take upper liquid cold drying and obtain graphene oxide powder, mix with dispersant, base oil, mix homogeneously is placed in high-temperature high-pressure reaction kettle and processes, obtain lipophilic Graphene, mix with dispersant, base oil or lipophilic Graphene mixes with finished lube, obtain Graphene lube oil additive. This technique is simple, convenient, saves cost, has dispersibility and stability, the problem solving nanometer additive long-time stability of excellence between each component.
The preparation method that China Patent Publication No. CN105176628A discloses the lubricating oil of graphene-supported nano-oxide, separates graphene oxide solution through low speed, takes upper liquid stand-by;Upper liquid is mixed with nano-oxide, freeze-dried, obtain the composite powder of the few layer graphene oxide of puffy and nano-oxide; Heating is until permanent dry under vacuo, blended with base oil be placed in closed reactor and be heated processing, obtain lipophilic graphene nano complex oxide after isolated by filtration; Mix homogeneously with compound additive, base oil, obtain the lubricating oil of graphene-containing load nano-oxide. Present invention process is simple, cost performance is high, has dispersibility and the stability of excellence between each component.
The preparation method that China Patent Publication No. CN105255547A discloses a kind of Graphene function lubricating oil, first mixes nano-graphene, nano molybdenum disulfide and nano boric acid salt with coupling agent stirring, obtains coupling agent modified composite nano-powder; By zinc acetate solution and thioacetyl amine aqueous solution and dialkyl dithiophosphate and hydrazine hydrate hybrid reaction, separate, washing, dry, obtain the nano-zinc sulfide that dialkyl dithiophosphate is modified; The nano-zinc sulfide that coupling agent modified composite nano-powder and dialkyl dithiophosphate are modified is added in base oil, recovers after high-speed stirred at a certain temperature to room temperature to obtain Graphene function lubricating oil. Lubricating oil prepared by the present invention has more excellent anti-wear and wear-resistant performance, high bearing capacity, and wear surface is had repair function. But this complicated process of preparation, additive component is more, relatively costly, it is impossible to embody Graphene effect in lubricating additive.
At present, the grapheme material major part being applied in lube oil additive is the graphene oxide adopting chemical oxidization method to prepare, compared with Graphene, there is a large amount of oxygen-containing functional group and present the pattern of fold in surface of graphene oxide, so that its smoothness of the surface is substantially reduced, add the coefficient of friction of interlayer; And preparation technology relative complex, the big multipair environment of preparation cost chemical reagent higher, used have harm, it is difficult to meet the needs of low cost Green synthesis and application. Graphene can adopt the method for mechanical stripping to be prepared, and has the advantage of high efficiency, low cost, simple and easy green, easy scale concurrently, provides strong technical support for Graphene in the application of lubricating area. By Graphene directly as additive application in lubricating oil, can there is bad dispersibility, the shortcoming easily reunited, therefore it is an object of the invention to adopt the method for mechanical stripping to prepare a kind of grapheme material for lube oil additive.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, the preparation method proposing a kind of Graphene lubricating additive, the method is with biomass carbon source for primary raw material, high temperature cabonization forms the carbon source predecessor with loose structure, it is dispersed in modification of chitosan solution, improve the dispersibility of material with carbon element, undertaken shearing by microjet nanometer homogenizer and peel off, the high speed shear effect that huge barometric gradient is formed is utilized to make carbon source pulverize the formation Graphene slurry that breaks, then mix with the stirring of nanometer micropore clay, graphene uniform is made to be dispersed in the microcellular structure of nanoclay, improve the stability of Graphene, reduce the reunion of Graphene, the nanometer micropore clay simultaneously added also has higher lubricity, for lubricating oil, there is higher dispersibility, not easily reunite.
For solve the problems referred to above, the present invention by the following technical solutions:
A kind of preparation method of Graphene lubricating additive, it is characterized in that: adopting biomass carbon source is primary raw material, utilize the barometric gradient that microjet nanometer homogenizer produces to form shear action and peel off acquisition Graphene slurry, stirring miniaturization process with nanometer micropore clay and obtain Graphene lubricating additive, concrete preparation method is as follows:
(1) pore creating material of the biomass carbon source of 70 ~ 80 weight portions and 1 ~ 10 weight portion is sent into mix and blend 10 ~ 20min in single screw extrusion machine, carburizing temperature is set and is 300 ~ 500 DEG C and carries out carbonization treatment, form the carbon source predecessor with loose structure;
(2) after carbon source predecessor step (1) obtained mixes by the mass ratio of 1:5 ~ 10 with the modification of chitosan solution that concentration is 10 ~ 20mol/L, 50 ~ 70 DEG C, 1000 ~ 5000r/min when high-speed stirred dispersion 20 ~ 50min, form chitin modified carbon source dispersed paste;
(3) step (2) is sent into formation high-pressure fluid in microjet nanometer homogenizer through chitin modified carbon source dispersed paste, arranging homogenization pressure is 100 ~ 130Mpa, high-pressure fluid produces huge barometric gradient by before and after valve opening, forming high speed shear effect makes carbon source pulverizing break, pulverize the carbon source slurry after breaking after valve opening, form high-speed jet, carry out high velocity impact with rightabout jet and reach the shearing stripping of carbon source, form Graphene slurry;
(4) Graphene slurry step (3) obtained is sent in mixed at high speed blender, add the nanometer micropore clay of 10 ~ 20 weight portions, mixing 20 ~ 40min is stirred when 500 ~ 1000r/min, graphene uniform is made to be distributed in nanometer micropore clay, filtration drying, it is crushed to the particle diameter powder less than 10 μm, namely obtains Graphene lubricating additive.
Described biomass carbon source is one or more in starch, cellulose, lignin, glucose.
Described pore creating material is at least one in Polyethylene Glycol, carbamide, ethanedioic acid ammonium, ammonium hydrogen sulfate.
Described modification of chitosan is at least one in hydroxypropyl chitosan, hydroxyl butyl chitosan, N-Nmaleoyl chitosan, grafted by beta cyclodextrin chitosan.
Described nanometer micropore clay is at least one in nanometer micropore Kaolin, nanometer micropore she clay, nanometer micropore illiteracy clay.
The valve opening aperture of described microjet nanometer homogenizer is 60 ~ 100 μm.
The preparation method of a kind of Graphene lubricating additive of the present invention, with biomass carbon source for primary raw material, screw extruding carbonization is utilized to form the carbon source presoma with loose structure under the decomposition of pore creating material, it is dispersed in modified chitosan solution, modification of chitosan molecule enters in material with carbon element by loose structure, improves the dispersibility of material with carbon element; Material with carbon element dispersion liquid is formed high-pressure fluid by microjet nanometer homogenizer, utilizes fluid to drop formation shear action by the immense pressure produced before and after valve opening, material with carbon element is carried out pulverizing and breaks, make carbon structure layer peeling-off; Carbon pastes after valve opening forms high-speed jet, carry out high velocity impact with rightabout jet to reach, again carry out the carbon source not being completely exfoliated shearing and peel off, thus realizing the successively stripping of material with carbon element, reduce the fault of construction of Graphene, form uniform graphene dispersion slurry. Being mixed with the stirring of nanometer micropore clay by the Graphene slurry obtained, make graphene uniform be dispersed in the microcellular structure of nanoclay, improve the stability of Graphene, reduce the reunion of Graphene, the nanometer micropore clay simultaneously added also has higher lubricity. Graphene lubricating additive greasy property prepared by the present invention is high, good dispersion, for not easily reuniting in lubricating oil, and adopts mechanical stripping method to prepare, and technique is simple, and cost is low, it is easy to Graphene large-scale application in lubricating oil field.
The preparation method of a kind of Graphene lubricating additive of the present invention, compared with prior art, its prominent feature and excellent effect are in that:
1, the biomass carbon source utilizing high temperature cabonization forms porous carbon source presoma, carbon matrix precursor dispersed paste is obtained by modification of chitosan modification, carbon matrix precursor is peeled off and is formed Graphene by the high shear utilizing microjet nanometer homogenizer, the Quick mechanical achieving Graphene is peeled off, decrease the fault of construction of graphenic surface, improve dispersibility and the lubricity of Graphene.
2, utilize the nanometer micropore clay with greasy property as the carrier of Graphene, graphene uniform is made to be dispersed in the micropore of nanoclay, prevent Graphene reunion in lubricating oil, improve the utilization rate of Graphene lubricating additive, reduce Graphene application cost in lubricating oil.
3, preparation method of the present invention is easily controllable, it may be achieved the closed production of serialization, put into little, cost is low, non-environmental-pollution, yield are high, has significant market using value.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is explained in detail, is not restricted to the present invention. When without departing from said method thought of the present invention, the various replacements made according to ordinary skill knowledge and customary means or improvement, should be included within protection scope of the present invention.
Embodiment 1
(1) Polyethylene Glycol of the starch of 70 weight portions and 5 weight portions is sent into mix and blend 10min in single screw extrusion machine, carburizing temperature is set and is 300 ~ 500 DEG C and carries out carbonization treatment, form the carbon source predecessor with loose structure;
(2) after carbon source predecessor step (1) obtained mixes by the mass ratio of 1:5 with the hydroxypropyl sugar juice that concentration is 10mol/L, 70 DEG C, 1000r/min when high-speed stirred dispersion 50min, form chitin modified carbon source dispersed paste;
(3) step (2) is sent into formation high-pressure fluid in microjet nanometer homogenizer through chitin modified carbon source dispersed paste, arranging homogenization pressure is 100 ~ 130Mpa, high-pressure fluid produces huge barometric gradient by before and after valve opening, forming high speed shear effect makes carbon source pulverizing break, pulverize the carbon source slurry after breaking after valve opening, form high-speed jet, carry out high velocity impact with rightabout jet and reach the shearing stripping of carbon source, form Graphene slurry;
(4) Graphene slurry step (3) obtained is sent in mixed at high speed blender, add the nanometer micropore Kaolin of 10 weight portions, the stirring mixing 40min when 500r/min, graphene uniform is made to be distributed in nanometer micropore clay, filtration drying, it is crushed to the particle diameter powder less than 10 μm, namely obtains Graphene lubricating additive.
Embodiment 2
(1) carbamide of the cellulose of 80 weight portions and 10 weight portions is sent into mix and blend 20min in single screw extrusion machine, carburizing temperature is set and is 300 ~ 500 DEG C and carries out carbonization treatment, form the carbon source predecessor with loose structure;
(2) after carbon source predecessor step (1) obtained mixes by the mass ratio of 1:5 with the hydroxyl butyl chitosan solution that concentration is 15mol/L, 50 DEG C, 3000r/min when high-speed stirred dispersion 30min, form chitin modified carbon source dispersed paste;
(3) step (2) is sent into formation high-pressure fluid in microjet nanometer homogenizer through chitin modified carbon source dispersed paste, arranging homogenization pressure is 100 ~ 130Mpa, high-pressure fluid produces huge barometric gradient by before and after valve opening, forming high speed shear effect makes carbon source pulverizing break, pulverize the carbon source slurry after breaking after valve opening, form high-speed jet, carry out high velocity impact with rightabout jet and reach the shearing stripping of carbon source, form Graphene slurry;
(4) Graphene slurry step (3) obtained is sent in mixed at high speed blender, add her clay of nanometer micropore of 15 weight portions, the stirring mixing 30min when 800r/min, graphene uniform is made to be distributed in nanometer micropore clay, filtration drying, it is crushed to the particle diameter powder less than 10 μm, namely obtains Graphene lubricating additive.
Embodiment 3
(1) the ethanedioic acid ammonium of the lignin of 80 weight portions and 5 weight portions is sent into mix and blend 20min in single screw extrusion machine, carburizing temperature is set and is 300 ~ 500 DEG C and carries out carbonization treatment, form the carbon source predecessor with loose structure;
(2) after carbon source predecessor step (1) obtained mixes by the mass ratio of 1:5 with the N-Nmaleoyl chitosan solution that concentration is 20mol/L, 70 DEG C, 5000r/min when high-speed stirred dispersion 20min, form chitin modified carbon source dispersed paste;
(3) step (2) is sent into formation high-pressure fluid in microjet nanometer homogenizer through chitin modified carbon source dispersed paste, arranging homogenization pressure is 100 ~ 130Mpa, high-pressure fluid produces huge barometric gradient by before and after valve opening, forming high speed shear effect makes carbon source pulverizing break, pulverize the carbon source slurry after breaking after valve opening, form high-speed jet, carry out high velocity impact with rightabout jet and reach the shearing stripping of carbon source, form Graphene slurry;
(4) Graphene slurry step (3) obtained is sent in mixed at high speed blender, the nanometer micropore adding 20 weight portions covers clay, the stirring mixing 30min when 800r/min, graphene uniform is made to be distributed in nanometer micropore clay, filtration drying, it is crushed to the particle diameter powder less than 10 μm, namely obtains Graphene lubricating additive.
Embodiment 4
(1) ammonium hydrogen sulfate of the glucose of 75 weight portions and 10 weight portions is sent into mix and blend 15min in single screw extrusion machine, carburizing temperature is set and is 300 ~ 500 DEG C and carries out carbonization treatment, form the carbon source predecessor with loose structure;
(2) after carbon source predecessor step (1) obtained mixes by the mass ratio of 1:10 with the grafted by beta cyclodextrin chitosan solution that concentration is 10mol/L, 60 DEG C, 5000r/min when high-speed stirred dispersion 20min, form chitin modified carbon source dispersed paste;
(3) step (2) is sent into formation high-pressure fluid in microjet nanometer homogenizer through chitin modified carbon source dispersed paste, arranging homogenization pressure is 100 ~ 130Mpa, high-pressure fluid produces huge barometric gradient by before and after valve opening, forming high speed shear effect makes carbon source pulverizing break, pulverize the carbon source slurry after breaking after valve opening, form high-speed jet, carry out high velocity impact with rightabout jet and reach the shearing stripping of carbon source, form Graphene slurry;
(4) Graphene slurry step (3) obtained is sent in mixed at high speed blender, the nanometer micropore adding 15 weight portions covers clay, the stirring mixing 20min when 1000r/min, graphene uniform is made to be distributed in nanometer micropore clay, filtration drying, it is crushed to the particle diameter powder less than 10 μm, namely obtains Graphene lubricating additive.
Embodiment 5
(1) ammonium hydrogen sulfate of the starch of 40 weight portions, the cellulose of 40 weight portions and 10 weight portions is sent into mix and blend 20min in single screw extrusion machine, carburizing temperature is set and is 300 ~ 500 DEG C and carries out carbonization treatment, form the carbon source predecessor with loose structure;
(2) after carbon source predecessor step (1) obtained mixes by the mass ratio of 1:10 with the modification of chitosan solution that concentration is 10mol/L, 60 DEG C, 3000r/min when high-speed stirred dispersion 30min, form chitin modified carbon source dispersed paste;
(3) step (2) is sent into formation high-pressure fluid in microjet nanometer homogenizer through chitin modified carbon source dispersed paste, arranging homogenization pressure is 100 ~ 130Mpa, high-pressure fluid produces huge barometric gradient by before and after valve opening, forming high speed shear effect makes carbon source pulverizing break, pulverize the carbon source slurry after breaking after valve opening, form high-speed jet, carry out high velocity impact with rightabout jet and reach the shearing stripping of carbon source, form Graphene slurry;
(4) Graphene slurry step (3) obtained is sent in mixed at high speed blender, add the nanometer micropore of 10 weight portions and cover her clay of nanometer micropore of clay and 10 weight portions, the stirring mixing 20min when 800r/min, graphene uniform is made to be distributed in nanometer micropore clay, filtration drying, it is crushed to the particle diameter powder less than 10 μm, namely obtains Graphene lubricating additive.
Claims (7)
1. the preparation method of a Graphene lubricating additive, it is characterized in that: adopting biomass carbon source is primary raw material, utilize the barometric gradient that microjet nanometer homogenizer produces to form shear action and peel off acquisition Graphene slurry, stirring miniaturization process with nanometer micropore clay and obtain Graphene lubricating additive, concrete preparation method is as follows:
(1) pore creating material of the biomass carbon source of 70 ~ 80 weight portions and 1 ~ 10 weight portion is sent into mix and blend 10 ~ 20min in single screw extrusion machine, carburizing temperature is set and is 300 ~ 500 DEG C and carries out carbonization treatment, form the carbon source predecessor with loose structure;
(2) after carbon source predecessor step (1) obtained mixes by the mass ratio of 1:5 ~ 10 with the modification of chitosan solution that concentration is 10 ~ 20mol/L, 50 ~ 70 DEG C, 1000 ~ 5000r/min when high-speed stirred dispersion 20 ~ 50min, form chitin modified carbon source dispersed paste;
(3) step (2) is sent into formation high-pressure fluid in microjet nanometer homogenizer through chitin modified carbon source dispersed paste, arranging homogenization pressure is 100 ~ 130Mpa, high-pressure fluid produces huge barometric gradient by before and after valve opening, forming high speed shear effect makes carbon source pulverizing break, pulverize the carbon source slurry after breaking after valve opening, form high-speed jet, carry out high velocity impact with rightabout jet and reach the shearing stripping of carbon source, form Graphene slurry;
(4) Graphene slurry step (3) obtained is sent in mixed at high speed blender, add the nanometer micropore clay of 10 ~ 20 weight portions, mixing 20 ~ 40min is stirred when 500 ~ 1000r/min, graphene uniform is made to be distributed in nanometer micropore clay, filtration drying, it is crushed to the particle diameter powder less than 10 μm, namely obtains Graphene lubricating additive.
2. the preparation method of a kind of Graphene lubricating additive according to claim 1, it is characterised in that described biomass carbon source is one or more in starch, cellulose, lignin, glucose.
3. the preparation method of a kind of Graphene lubricating additive according to claim 1, it is characterised in that described pore creating material is at least one in Polyethylene Glycol, carbamide, ethanedioic acid ammonium, ammonium hydrogen sulfate.
4. the preparation method of a kind of Graphene lubricating additive according to claim 1, it is characterised in that described modification of chitosan is at least one in hydroxypropyl chitosan, hydroxyl butyl chitosan, N-Nmaleoyl chitosan, grafted by beta cyclodextrin chitosan.
5. the preparation method of a kind of Graphene lubricating additive according to claim 1, it is characterised in that described nanometer micropore clay is that nanometer micropore Kaolin, her clay of nanometer micropore, nanometer micropore cover at least one in clay.
6. the preparation method of a kind of Graphene lubricating additive according to claim 1, it is characterised in that the valve opening aperture of described microjet nanometer homogenizer is 60 ~ 100 μm.
7. the preparation method of a kind of Graphene lubricating additive according to claim 1, it is characterised in that described Graphene lubricating additive is used for lubricating oil.
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| CN107010621A (en) * | 2017-05-11 | 2017-08-04 | 上海烯古能源科技有限公司 | Modified graphene, graphene lubricant oil composite, preparation method and application |
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| CN110295078A (en) * | 2019-07-18 | 2019-10-01 | 南京理工大学 | A kind of functional graphene/montmorillonite/modified molybdenum sulphide lube oil additive |
| CN110373251A (en) * | 2019-07-18 | 2019-10-25 | 南京理工大学 | Graphene/lanthanum borate/kaolin composite material lube oil additive |
| CN111004669A (en) * | 2019-12-11 | 2020-04-14 | 中国科学院兰州化学物理研究所 | Ionic liquid lignin lubricating composition and preparation method and application thereof |
| CN111040863A (en) * | 2019-12-12 | 2020-04-21 | 贵安新区瑞诚生物工程有限公司 | Preparation method of graphene lubricating oil, graphene lubricating oil and application |
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