CN114774185A - Graphene lubricating grease, preparation method and production equipment thereof - Google Patents
Graphene lubricating grease, preparation method and production equipment thereof Download PDFInfo
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- CN114774185A CN114774185A CN202210553386.3A CN202210553386A CN114774185A CN 114774185 A CN114774185 A CN 114774185A CN 202210553386 A CN202210553386 A CN 202210553386A CN 114774185 A CN114774185 A CN 114774185A
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- lubricating grease
- grease
- dispersing agent
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- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 46
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000004519 grease Substances 0.000 title claims abstract description 37
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 14
- 239000002199 base oil Substances 0.000 claims abstract description 12
- 239000002562 thickening agent Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 69
- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000000227 grinding Methods 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 15
- 239000010687 lubricating oil Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- -1 graphite alkene Chemical class 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 3
- 230000008439 repair process Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010689 synthetic lubricating oil Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
-
- 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
- C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
-
- 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
- C10N2030/72—Extended drain
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses graphene lubricating grease, a preparation method and production equipment thereof, wherein the graphene lubricating grease mainly comprises the following raw materials in percentage by mass: 1-2% of nano graphene, 0.5% of dispersing agent, 14-20% of thickening agent and the balance of base oil. The method has the advantages of simple process and good effect, and the high-purity graphene is adopted, so that the lubricating property of the lubricating grease can be obviously improved, the friction coefficient is reduced, and the friction loss is reduced; the graphene used in the invention does not chemically react with the metal surface, and can form a film through physical adsorption to protect a friction interface and reduce abrasion; the graphene used by the method can fill and repair the abrasion of a friction interface in a high-temperature and high-pressure environment; meanwhile, the long-time use of the engine carburization agent can form on the surface of the inner wall of the engine, so that the surface strength is improved, and the service life of mechanical parts is prolonged; compared with common lubricating grease, the graphene lubricating grease has better adaptability to high and low temperature environments, and the maximum use temperature is far higher than that of the common lubricating grease.
Description
Technical Field
The invention relates to the technical field of production lines, and particularly relates to graphene lubricating grease, a preparation method and production equipment thereof.
Background
The lubricating grease is a thick grease-like semisolid which is usually used for a friction part of a machine to play roles of lubrication and sealing, can also be used for a metal surface to play roles of filling a gap and preventing rust, and is mainly prepared by mixing mineral oil (or synthetic lubricating oil) and a thickening agent.
According to the statistics of international authorities, three losses of metal material abrasion, corrosion and fatigue account for about 30% of the total industrial value, and frictional abrasion is a ubiquitous natural phenomenon. Friction loses about one third of the world's primary energy, and wear is one of the three most prominent forms of material and equipment damage and failure. Lubrication is the most effective technique to reduce friction, reduce or avoid wear. The development of a lubricating technology which has good wear resistance, high bearing capacity, certain repair function on a wear surface and no pollution or little pollution to the environment is one of the important subjects of modern chemistry, material science and tribology.
However, the existing grease has low lubricating performance, high friction coefficient and high friction loss, so that improvement is needed.
Disclosure of Invention
The invention aims to provide graphene lubricating grease, a preparation method and production equipment thereof aiming at the defects and shortcomings of the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the graphene lubricating grease is characterized by mainly comprising the following raw materials in percentage by mass: 1-2% of nano graphene, 0.5% of dispersing agent, 14-20% of thickening agent and the balance of base oil.
Further, the nano graphene has a sheet diameter D50 of 2.5 μm or less.
Furthermore, the dispersing agent is a powder dispersing agent with oleophilic groups.
The preparation method of the graphene lubricating grease has the innovation points that the preparation method comprises the following steps:
s1, firstly, adding the dispersing agent into the base oil, and stirring at a medium speed for 30 min;
s2, adding the nano graphene into the base oil at a constant speed, stirring at a high speed for 2 hours by using a multistage high-speed dispersion machine, standing for 30 minutes, continuously stirring for 2 hours, and obtaining graphene lubricating oil after the system is stable;
s3, adding a thickening agent into the graphene lubricating oil, heating to 180 ℃ and 200 ℃, and stirring at a high speed for 2h to obtain a mixture;
s4, cooling the mixture to 100-120 ℃, grinding for 1-2h to form grease, and cooling to obtain the finished graphene lubricating grease.
The utility model provides a production facility of graphite alkene lubricating grease, its innovation point lies in: mainly comprises a heating stirrer and a cooling grinder which are connected end to end; the heating stirrer comprises a stirring tank, a stirring motor and a feeding hole are arranged at the top of the stirring tank, a discharging hole is formed in the bottom of the stirring tank, a heating coil with a spiral structure is suspended in the stirring tank, the stirring motor is in transmission connection with a stirring rod, the stirring rod penetrates through the heating coil, a plurality of stirring blades are arranged at the bottom of the stirring rod, and the stirring blades extend upwards; the cooling mill includes at the bottom of jar body and arc, it sets up condensing coil to go up internal hanging of jar, condensing coil's the external discharge gate of feed end, it sets up the grinding motor to go up jar body top, grind the motor drive and connect and grind the pole, grind the pole downwardly extending and run through condensing coil, and the bottom sets up the abrasive disc, condensing coil's discharge end is at the bottom of the arc, set up the bin outlet at the bottom of the arc.
Furthermore, a plurality of stirring auxiliary blades are arranged on the stirring blades, and the stirring auxiliary blades and the heating coil are distributed in a staggered manner.
Furthermore, go up jar body and arc end and be detachable connection structure.
The invention has the beneficial effects that:
the method has the advantages of simple process and good effect, and the high-purity graphene is adopted, so that the lubricating performance of the lubricating grease can be obviously improved, the friction coefficient is reduced, and the friction loss is reduced; the graphene used in the invention does not chemically react with the metal surface, and can form a film through physical adsorption to protect a friction interface and reduce abrasion; the graphene used in the invention can fill and repair the abrasion of a friction interface in a high-temperature and high-pressure environment; meanwhile, the surface of the inner wall of the engine can be carburized after long-time use, so that the surface strength is improved, and the service life of mechanical parts is prolonged; compared with common lubricating grease, the graphene lubricating grease has better adaptability to high and low temperature environments, and the maximum use temperature is far higher than that of the common lubricating grease.
Drawings
FIG. 1 is a schematic view of the structure of the production apparatus of the present invention
Description of the reference numerals:
1 heating stirrer, 11 stirring tank, 12 stirring motor, 13 feeding port, 14 discharging port, 15 heating coil, 16 stirring rod, 17 stirring blade, 18 stirring auxiliary blade, 2 cooling grinder, 21 upper tank body, 22 arc bottom, 23 condensing coil, 24 grinding motor, 25 grinding rod, 26 grinding disk and 27 discharging port.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are given by way of illustration only.
Example 1
The graphene lubricating grease mainly comprises the following raw materials in percentage by mass: 1-2% of nano graphene, 0.5% of dispersing agent, 14-20% of thickening agent and the balance of base oil.
In the present example, the nano-graphene sheet diameter D50 is 2.5 μm or less.
In this embodiment, the dispersant is a powder dispersant having lipophilic groups.
Example 2
A preparation method of graphene lubricating grease comprises the following steps:
s1, firstly, adding the dispersing agent into the base oil, and stirring at a medium speed for 30 min;
s2, adding the nano graphene into the base oil at a constant speed, stirring at a high speed for 2 hours by using a multistage high-speed dispersion machine, standing for 30 minutes, continuously stirring for 2 hours, and obtaining graphene lubricating oil after the system is stable;
s3, adding a thickening agent into the graphene lubricating oil, heating to 180 ℃ and 200 ℃, and stirring at a high speed for 2h to obtain a mixture;
s4, cooling the mixture to 100-120 ℃, grinding for 1-2h to form grease, and cooling to obtain the finished graphene lubricating grease.
Example 3
Production equipment of graphene lubricating grease mainly comprises a heating stirrer 1 and a cooling grinder 2 which are in end connection; the heating stirrer 1 comprises a stirring tank 11, wherein a stirring motor 12 and a feeding hole 13 are arranged at the top of the stirring tank 11, a discharging hole 14 is formed in the bottom of the stirring tank 11, a heating coil 15 with a spiral structure is suspended in the stirring tank 11, the stirring motor 12 is in transmission connection with a stirring rod 16, the stirring rod 16 penetrates through the heating coil 15, a plurality of stirring blades 17 are arranged at the bottom of the stirring rod 16, and the stirring blades 17 extend upwards; the cooling grinder 2 comprises an upper tank body 21 and an arc bottom 22, a condensing coil 23 is suspended in the upper tank body 21, a feed end of the condensing coil 23 is externally connected with a discharge port 14, the top of the upper tank body 21 is provided with a grinding motor 24, the grinding motor 24 is in transmission connection with a grinding rod 25, the grinding rod 25 extends downwards and runs through the condensing coil 23, the bottom of the grinding rod is provided with a grinding disc 26, the discharge end of the condensing coil 23 faces the arc bottom, and the arc bottom is provided with a discharge port 27. Specifically, firstly, injecting base oil into a stirring tank 11, then injecting a dispersing agent, then starting a stirring motor 12, driving a stirring blade 17 to rotate through a stirring rod 16, thus stirring the materials, stirring for 30min, then adding nano graphene into the base oil at a constant speed, stirring for 2h at a high speed through a multistage high-speed dispersion machine, standing for 30min, then continuing stirring for 2h, obtaining graphene lubricating oil after the system is stable, then adding a thickening agent into the graphene lubricating oil, heating to 180-; and then conveying the mixture into a condensing coil 23, cooling to the temperature of 100-120 ℃, conveying to the arc bottom, starting a grinding motor 24, rotating a grinding disc 26 through a grinding rod 25, grinding for 1-2h to form grease, and cooling to obtain the finished graphene lubricating grease.
In this embodiment, the stirring blades 17 are provided with a plurality of stirring auxiliary blades 18, and the stirring auxiliary blades 18 are distributed with the heating coil 15 in a staggered manner, that is, the stirring auxiliary blades 18 are located in the interval between the heating coils 15, so as to improve the stirring efficiency.
In this embodiment, the upper tank 21 and the arc bottom 22 are detachably connected, so that the material can be completely discharged by detaching the arc bottom 22.
The above description is only for illustrating the technical solution of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solution of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.
Claims (7)
1. The graphene lubricating grease is characterized by mainly comprising the following raw materials in percentage by mass: 1-2% of nano graphene, 0.5% of dispersing agent, 14-20% of thickening agent and the balance of base oil.
2. The graphene grease according to claim 1, wherein: the sheet diameter D50 of the nano graphene is less than 2.5 μm.
3. The graphene grease according to claim 1, wherein: the dispersing agent is a powder dispersing agent with oleophylic groups.
4. The preparation method of the graphene lubricating grease is characterized by comprising the following steps:
s1, firstly, adding the dispersing agent into the base oil, and stirring at a medium speed for 30 min;
s2, adding the nano graphene into base oil at a constant speed, stirring at a high speed for 2h by using a multistage high-speed dispersion machine, standing for 30min, continuing stirring for 2h, and obtaining graphene lubricating oil after the system is stabilized;
s3, adding a thickening agent into the graphene lubricating oil, heating to 180-200 ℃, and stirring at a high speed for 2h to obtain a mixture;
s4, cooling the mixture to 100-120 ℃, grinding for 1-2h to form grease, and cooling to obtain the finished graphene lubricating grease.
5. The utility model provides a production facility of graphite alkene lubricating grease which characterized in that: mainly comprises a heating stirrer and a cooling grinder which are connected end to end; the heating stirrer comprises a stirring tank, wherein a stirring motor and a feeding hole are arranged at the top of the stirring tank, a discharging hole is formed in the bottom of the stirring tank, a heating coil with a spiral structure is suspended in the stirring tank, the stirring motor is in transmission connection with a stirring rod, the stirring rod penetrates through the heating coil, a plurality of stirring blades are arranged at the bottom of the stirring rod, and the stirring blades extend upwards; the cooling mill includes at the bottom of jar body and arc, it sets up condensing coil to go up internal hanging of jar, condensing coil's the external discharge gate of feed end, it sets up the grinding motor to go up jar body top, grind the motor drive and connect and grind the pole, grind the pole downwardly extending and run through condensing coil, and the bottom sets up the abrasive disc, condensing coil's discharge end is at the bottom of the arc, set up the bin outlet at the bottom of the arc.
6. The production facility of graphite alkene lubricating grease of claim 5, characterized in that: the stirring blades are provided with a plurality of stirring auxiliary blades, and the stirring auxiliary blades and the heating coil are distributed in a staggered manner.
7. The production facility of graphite alkene lubricating grease of claim 5, characterized in that: go up jar body and arc end and be detachable connection structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210553386.3A CN114774185A (en) | 2022-05-21 | 2022-05-21 | Graphene lubricating grease, preparation method and production equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210553386.3A CN114774185A (en) | 2022-05-21 | 2022-05-21 | Graphene lubricating grease, preparation method and production equipment thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114774185A true CN114774185A (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210553386.3A Pending CN114774185A (en) | 2022-05-21 | 2022-05-21 | Graphene lubricating grease, preparation method and production equipment thereof |
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| Country | Link |
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| CN (1) | CN114774185A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115651743A (en) * | 2022-10-27 | 2023-01-31 | 中国科学院兰州化学物理研究所 | Lubricating composition capable of forming graphene in situ and preparation method and application thereof |
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Application publication date: 20220722 |