CN113150855A - Preparation method and application of oil-based lubricating additive capable of realizing ultrahigh load - Google Patents

Preparation method and application of oil-based lubricating additive capable of realizing ultrahigh load Download PDF

Info

Publication number
CN113150855A
CN113150855A CN202110325960.5A CN202110325960A CN113150855A CN 113150855 A CN113150855 A CN 113150855A CN 202110325960 A CN202110325960 A CN 202110325960A CN 113150855 A CN113150855 A CN 113150855A
Authority
CN
China
Prior art keywords
oil
hydrotalcite
solution
lubricating
additive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110325960.5A
Other languages
Chinese (zh)
Other versions
CN113150855B (en
Inventor
刘宇宏
王鲲鹏
刘磊
祁亚峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsinghua University
Original Assignee
Tsinghua University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tsinghua University filed Critical Tsinghua University
Priority to CN202110325960.5A priority Critical patent/CN113150855B/en
Publication of CN113150855A publication Critical patent/CN113150855A/en
Application granted granted Critical
Publication of CN113150855B publication Critical patent/CN113150855B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/16—Amides; Imides
    • C10M133/18—Amides; Imides of carbonic or haloformic acids
    • C10M133/20—Ureas; Semicarbazides; Allophanates
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/10—Amides of carbonic or haloformic acids
    • C10M2215/102—Ureas; Semicarbazides; Allophanates

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 provides a preparation and application method of a hydrotalcite oil-based additive capable of realizing ultrahigh load, which is characterized in that an ultrathin hydrotalcite nanosheet prepared by a hydrothermal method is dispersed and dissolved in an acetone solution according to the proportion of 0.1-2% and has the longitudinal dimension of about 0.5-2 nm, the ultrathin hydrotalcite nanosheet is centrifuged and transferred to an alcohol solution, and the alcohol solution is transferred to a lubricating oil system through thermal evaporation, so that a clear and transparent colloidal solution can be prepared. The transverse size of the hydrotalcite nano-sheet is about dozens of nanometers, and simultaneously, the metal elements of the hydrotalcite nano-sheet are in unsaturated coordination bonds, and the coordinated unsaturated nano-sheet has extremely high chemical activity in a high-temperature friction region, and promotes the formation of a compact protective friction film on the sliding surface, so that the ultrahigh load capacity of the lubricating liquid is realized. The lubricating liquid has the advantages of simple preparation method, strong practical applicability, excellent tribological performance and good industrial application prospect.

Description

Preparation method and application of oil-based lubricating additive capable of realizing ultrahigh load
Technical Field
The invention relates to the technical field of lubricating additives, in particular to a preparation method and application of a hydrotalcite nanosheet oil-based lubricating additive solution capable of realizing ultrahigh load.
Background
About 25% of the total energy loss is wasted by overcoming friction and the energy loss due to material wear is estimated to be 1.3-1.6% of the national production total (GNP) of industrialized countries. Therefore, the method has epoch-making significance in reducing abrasion, reducing energy consumption and greatly prolonging the service life of the transfer part. At present, the development of environment-friendly lubricating liquid with ultrahigh load capacity becomes an important research direction for vast researchers.
The lubricating oil has good anti-wear effect, and meanwhile, the anti-wear additive is an important component in the lubricating oil and is directly related to the stable operation and the effective operation of the friction pair. In general, phosphorus and sulfur substances are added into lubricating oil to improve the load capacity and prevent the surfaces of the kinematic pairs from being sintered, scratched and clamped. However, phosphorus and sulfur substances are generally difficult to biodegrade, and cause certain pollution to the environment. At present, an additive which is environment-friendly and can improve the extreme pressure performance of lubricating oil to a certain extent is urgently needed to be found.
The hydrotalcite nanosheet is a compound formed by orderly assembling interlayer anions and a laminate with positive charges, and the chemical composition general formula can be expressed as follows: [ M ] A2+ 1-xM3+ x(OH)2]x+(An-)x/n·mH2O, wherein M2+And M3+Respectively represent divalent and trivalent metal cations, are located on a host layer plate formed by MO6Octahedra formed by sharing adjacent sides and having a structure similar to brucite Mg (OH)2；An-Represents an interlayer anion; x is M3+/(M2++M3+) The molar ratio of (a); and m is the number of interlayer water molecules. Divalent metal cations, e.g. Mn, on the layers2+，Mg2+，Co2+，Ni2+，Cu2+，Zn2+Can be mixed with trivalent metal cations such as Cr with similar ionic radius in a certain proportion range3+，Fe3+，Al3+，Co3+Substitution in the same crystal lattice.
Hydrotalcite nanosheets are layered double hydroxides that, due to their relatively weak internal bonds and interactions (i.e., van der waals interactions), can improve the lubricating properties between friction pairs. The hydrotalcite nanosheets can enter the sliding surface of the contact friction pair, so that the rough peak collision probability of the surface of the friction pair is effectively reduced, and the abrasion of the sliding surface is reduced. Hydrotalcite not only has a unique layered structure, but also has chemical activity similar to mineral powder. In addition, the coordination unsaturated hydrotalcite nanosheet has extremely high chemical activity in a high-temperature friction contact area, promotes the formation of a compact protective friction film on the sliding surface, and can realize the ultrahigh loading capacity of the lubricating liquid.
Disclosure of Invention
The invention aims to provide an oil-based lubricating additive capable of realizing ultrahigh load, which can realize normal application of oil-based lubricating fluid under the working condition of ultrahigh load.
In order to solve the technical problems, the invention provides an oil-based lubricating additive capable of realizing ultrahigh load, wherein the oil-based lubricating additive is a hydrotalcite nanosheet, and the ultrahigh load capacity of the oil-based lubricating liquid containing the additive is higher than 2000N.
The oil-based lubricating additive is prepared by the following method:
firstly, adding soluble divalent and trivalent inorganic metal salts and urea into a polyhydroxy alcohol solution, and uniformly stirring by magnetic force;
secondly, transferring the solution obtained in the first step into a hydrothermal kettle, heating to a certain temperature for reaction, then cooling to room temperature by water, taking out the suspension, filtering, washing by using an alcohol solution, and dispersing the washed slurry into an acetone solution by the solid-to-liquid ratio of 0.1-2% to obtain a colloidal solution;
thirdly, collecting slurry from the colloidal solution obtained in the second step by a centrifugal method, and dispersing the slurry in an alcohol solution according to the solid-to-liquid ratio of 0.1-2% to obtain a clear and transparent colloidal solution;
fourthly, mixing the colloidal solution obtained in the third step with base oil to obtain precursor lubricating liquid;
and fifthly, placing the precursor lubricating liquid obtained in the fourth step in an oil bath for 12-36 hours.
The divalent metal salt is Mn2+，Mg2+，Co2+，Ni2+，Cu2+，Zn2+And B (OH)4 -，NO3 -，Cl-，F-，HPO3 -One of soluble salts is formed; the trivalent inorganic metal salt is Cr3+，Fe3+，Al3+And B (OH)4 -，NO3 -，Cl-，F-，HPO3 -Constitute one of the soluble salts.
Wherein, the polyhydric alcohols are one or more of glycol and derivatives thereof with volume concentration not less than 95%.
Wherein the molar ratio of the divalent metal ions to the trivalent metal ions is 2-4: 1, the molar ratio of urea to trivalent metal ions is 6-8: 1.
wherein the concentration range of the divalent metal salt is 0.1-100 mmol/L, the concentration range of the trivalent metal salt is 0.05-50 mmol/L, and the concentration of the urea is 0.35-350 mmol/L.
Wherein the heating temperature in the second step is 100-120 ℃ and the heating is carried out in a vacuum box.
According to the application method of the hydrotalcite nanosheet additive prepared by the method, the ultrahigh loading capacity of the lubricating liquid containing the additive is higher than 2000N.
The invention has the advantages of
The hydrotalcite nanosheet is a layered double hydroxide, and due to relatively weak internal bonds and interaction (namely Van der Waals interaction), the lubricating property between friction pairs can be improved, the surface roughness peak collision probability of the friction pairs is effectively reduced, and the abrasion of a sliding surface is reduced. Meanwhile, the coordination unsaturated hydrotalcite nanosheet has extremely high chemical activity in a high-temperature friction contact area, and promotes to form a compact protective friction film on the sliding surface, so that the ultrahigh loading capacity of the lubricating liquid is realized. The preparation method of the hydrotalcite additive is simple and easy to operate, and has strong practicability, excellent performance and high reliability. After the additive is used for preparing the oil-based lubricating liquid, the hydrotalcite can timely enter a contact area in a friction process, so that the direct contact of rough peaks is effectively avoided, and the wear resistance is greatly improved.
Drawings
FIG. 1(a) scanning electron microscope picture of hydrotalcite nanosheets; (b) a transmission electron microscope picture; (c) atomic force micrographs; (d) dispersion in methanol and base oils;
FIG. 2 coefficient of friction for oil-based systems containing a hydrotalcite additive;
FIG. 3(a) base oil and (b) wear scar diameter after rub test of a sample containing 1 wt% hydrotalcite nano-sheets; (c) base oil and (d) the width of a grinding trace after a friction test of a hydrotalcite nanosheet sample containing 1 wt% of hydrotalcite;
fig. 4 analyzes the tribofilm formed on the traces of wear lubricated by hydrotalcite nanosheets: (a) low power section transmission electron microscope image; (b) analyzing element mass spectral lines along the depth direction of the abrasion track; (c) diffraction patterns of tribofilms; (d) high resolution transmission electron microscopy images of tribofilms.
Detailed Description
The invention provides a preparation method of an oil-based lubricating additive capable of realizing ultrahigh load, wherein the oil-based lubricating is hydrotalcite nanosheet, and the ultrahigh load capacity of the oil-based lubricating liquid containing the additive is higher than 2000N.
The preparation method further comprises the following steps:
firstly, adding soluble divalent and trivalent inorganic metal salts and urea into a polyhydroxy alcohol solution, and uniformly stirring by magnetic force;
secondly, transferring the solution obtained in the first step into a hydrothermal kettle, heating to a certain temperature, reacting for 24-36 hours, then cooling to room temperature by water, taking out turbid liquid, filtering, washing by using an alcohol solution, and dispersing the washed slurry into an acetone solution by using a solid-to-liquid ratio of 0.1% -2% to obtain a colloidal solution;
thirdly, collecting slurry from the colloidal solution obtained in the second step by a centrifugal method, and dispersing the slurry in an alcohol solution according to the solid-to-liquid ratio of 0.1-2% to obtain a uniform and semitransparent colloidal solution;
fourthly, mixing the colloidal solution obtained in the third step with base oil according to the mass ratio of 10-50% to obtain precursor lubricating liquid;
and fifthly, placing the precursor lubricating liquid obtained in the fourth step in an oil bath at the temperature of 80-120 ℃ for 12-36 hours.
The divalent metal salt is Mn2+，Mg2+，Co2+，Ni2+，Cu2+，Zn2+And B (OH)4 -，NO3 -，Cl-，F-，HPO3 --One of soluble salts is formed; the trivalent inorganic metal salt is Cr3+，Fe3+，Al3+And B (OH)4 -，NO3 -，Cl-，F-，HPO3 -Constitute one of the soluble salts.
In the first step, the polyhydric alcohol is one or more of glycol and derivatives thereof with volume concentration of not less than 95%.
In the first step, the molar ratio of the divalent metal ions to the trivalent metal ions is 2-4: 1, preferably 3:1, wherein the molar ratio of urea to trivalent metal ions is 6-8: 1, preferably 7: 1.
The concentration range of the divalent metal salt is 0.1-100 mmol/L, the concentration range of the trivalent metal salt is 0.05-50 mmol/L, and the concentration of the urea is 0.35-350 mmol/L.
And heating in a vacuum box at the heating temperature of 100-120 ℃ in the second step.
In the second step, the alcohol solution is ethanol with volume concentration not less than 95% and one or more of derivatives thereof.
And in the third step, the alcohol solution is one or more of methanol with volume concentration not less than 90% and derivatives thereof.
Said base oil in said fourth step is one or more of ULTRA-S150N and derivatives thereof.
The transverse dimension of the hydrotalcite nanosheet prepared in the fifth step is 50-80 nm, and the longitudinal dimension of the hydrotalcite nanosheet is 0.5-2 nm.
According to the application method of the hydrotalcite nanosheet additive prepared by the method, the ultrahigh loading capacity of the lubricating liquid containing the additive is higher than 2000N.
The following describes embodiments of the present invention in detail by using examples and drawings, so that how to apply technical means to solve the above technical problems and achieve the technical effects can be fully understood and implemented.
Example 1 preparation of hydrotalcite nanosheet additive
Adding cobalt nitrate hexahydrate with the concentration of 3.2mmol/L, aluminum nitrate nonahydrate with the concentration of 1.6mmol/L and urea with the concentration of 11.2mmol/L into ethylene glycol, the molar ratio of the cobalt nitrate hexahydrate to the aluminum nitrate nonahydrate is 3:1, the molar ratio of the urea to the aluminum nitrate nonahydrate is 7:1, the mixture is stirred uniformly by magnetic force, the obtained solution is transferred into a hydrothermal kettle, the hydrothermal kettle is heated to 120 ℃, the reaction lasts 24 hours, then cooling to room temperature by water, taking out the suspension, filtering, washing by using ethanol, dispersing the washed slurry in an acetone solution with the solid-to-liquid ratio of 1 percent, obtaining a colloidal solution, collecting slurry by the obtained colloidal solution through a centrifugal method, dispersing the slurry in methanol according to the solid-to-liquid ratio of 1 percent, a uniform and transparent colloidal solution was obtained, the obtained colloidal solution was mixed with a base oil at a ratio of 30%, and the obtained lubricating fluid was allowed to stand in an oil bath at 100 ℃ for 24 hours.
The product obtained by the method of the embodiment 1 is an ultrathin nano hydrotalcite sheet (the transverse dimension is 50-80 nm, and the longitudinal dimension is about 0.5-2 nm) as shown in figures 1a and c. After washing with ethanol and dispersing in methanol solution, the solution is in a clear and transparent state as shown in figure 1 d. The hydrotalcite nano-sheets can be well dispersed in an oil-based system after being modified.
And adding the final product obtained by the mixture ratio as an additive into the base oil according to the mass fraction of 1 wt%, stirring and dispersing, and then carrying out an experiment by adopting a ball disc reciprocating mode of an SRV friction wear experiment machine. The friction test specimens consisted of a bearing steel (AISI 52100) ball and a bearing steel (AISI 52100) disc with a modulus of elasticity, poisson's ratio and rockwell Hardness (HRC) of 210GPa, 0.3 and 64.66, respectively, AISI 52100 with a surface roughness (Ra) of 40.5nm, an indoor ambient humidity of 30%, and an upper specimen diameter of 10 mm. The experimental temperature is 120 ℃, the stroke is 2mm, and the reciprocating frequency is 50 Hz. During the climb test, the sliding solid surface was run at 50N for 30s, then the normal load was raised to 100N and run for 15 minutes, after which the load was increased by 100N every 2 minutes. When the coefficient of friction (COF) suddenly exceeded 0.3, the friction test had to be stopped, indicating that seizure of the sliding surface occurred and lubrication failed.
Meanwhile, the base oil contained the same mass fraction of the multi-layered hydrotalcite sheet (width of about 50nm and height of about 20 nm) as a comparison. The multilayer hydrotalcite sheet is prepared by a constant pH value method, and the solution has high enough alkalinity, and no end capping agent is added to the hydrotalcite on the longitudinal scale, so that the hydrotalcite is stacked on the longitudinal scale to form multilayer hydrotalcite, and the experimental result is shown in figure 2. When the load reaches 400N, the friction coefficient of the base oil suddenly and rapidly rises, which indicates that the maximum load without occlusion is 300N; after 1 wt% of multilayer nano hydrotalcite is added into base oil, the numerical value of the multilayer nano hydrotalcite can be observed to have fluctuation in a certain range from the friction coefficient, and the bearing does not exceed 1100N in the whole experimental process; interestingly, after 1 wt% of the ultra-thin nano hydrotalcite sheet was added to the base oil solution, the friction coefficient did not fluctuate much, and the friction coefficient did not increase sharply until the load reached 2000N (which is the highest load that the friction tester can provide).
To compare the wear resistance of the base oil with the nano-hydro slippery petroleum-containing solution, the experimental conditions were unified and all lubricated samples were subjected to a pressure of 200N at 120 ℃. Images of wear marks were obtained using an optical microscope (fig. 3 a-d). As shown in the figure, the lubricating fluid added with the ultrathin nano hydrotalcite sheet has remarkable anti-wear effect, the diameter of the wear mark is reduced by nearly one fourth compared with the diameter of the wear mark when the lubricating fluid is not added, and the bearing pressure is improved by about 1.78 times.
As shown in fig. 4a, a tribofilm having a thickness of about 50nm was more uniformly formed on a steel substrate. Further, Co, Al, and O of the friction film are uniformly distributed on the sliding surface. The electron diffraction pattern and HRTEM showed that the bars were not very distinct. It is presumed that more tetrahedrally coordinated aluminum occurs in the hydrotalcite laminate and the hydrotalcite nanosheet occurs in the form of a monolayer, resulting in poor crystallinity of the hydrotalcite nanosheet. Considering that the additive has excellent anti-wear properties, a crystal structure having high surface activation energy rather than a well-crystallized material plays an important role in anti-wear properties.
Therefore, the ultra-thin nano hydrotalcite sheet can bear ultra-high load in an oil solution without occlusion, and has very important positive effects on effectively reducing energy loss and protecting the surface of a friction pair.
All of the above mentioned intellectual property rights are not intended to be restrictive to other forms of implementing the new and/or new products. Those skilled in the art will take advantage of this important information, and the foregoing will be modified to achieve similar performance. However, all modifications or alterations are based on the new products of the invention and belong to the reserved rights.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims (9)

1. An oil-based lubricant additive capable of realizing ultrahigh load, which is characterized in that: the oil-based lubricating additive is a hydrotalcite nanosheet, and the ultrahigh loading capacity of the oil-based lubricating additive is higher than 2000N.
2. The ultra-high load achievable oil-based lubricant additive of claim 1, prepared by the method comprising:
firstly, adding soluble divalent and trivalent inorganic metal salts and urea into a polyhydroxy alcohol solution, and uniformly stirring by magnetic force;
secondly, transferring the solution obtained in the first step into a hydrothermal kettle, heating to a certain temperature for reaction, then cooling to room temperature by water, taking out the suspension, filtering, washing by using an alcohol solution, and dispersing the washed slurry into an acetone solution by the solid-to-liquid ratio of 0.1-2% to obtain a colloidal solution;
thirdly, collecting slurry from the colloidal solution obtained in the second step by a centrifugal method, and dispersing the slurry in an alcohol solution according to the solid-to-liquid ratio of 0.1-2% to obtain a uniform and semitransparent colloidal solution;
fourthly, mixing the colloidal solution obtained in the third step with base oil;
and fifthly, placing the lubricating liquid obtained in the fourth step in an oil bath for 12-36 hours.
3. The method of preparing the ultra-high load achievable oil-based lubricant additive of claim 1 or 2, comprising:
firstly, adding soluble divalent and trivalent inorganic metal salts and urea into a polyhydroxy alcohol solution, and uniformly stirring by magnetic force;
secondly, transferring the solution obtained in the first step into a hydrothermal kettle, heating to a certain temperature for reaction, then cooling to room temperature by water, taking out the suspension, filtering, washing by using an alcohol solution, and dispersing the washed slurry into an acetone solution by the solid-to-liquid ratio of 0.1-2% to obtain a colloidal solution;
thirdly, collecting slurry from the colloidal solution obtained in the second step by a centrifugal method, and dispersing the slurry in an alcohol solution according to the solid-to-liquid ratio of 0.1-2% to obtain a uniform and semitransparent colloidal solution;
fourthly, mixing the colloidal solution obtained in the third step with base oil;
and fifthly, placing the lubricating liquid obtained in the fourth step in an oil bath for 12-36 hours.
4. The method of making ultra-high load achievable oil-based lubricant additive of claim 3, wherein: the divalent radicalThe metal salt being Mn2+，Mg2+，Co2+，Ni2+，Cu2+，Zn2+And B (OH)4 -，NO3 -，Cl-，F-，HPO3 -Forming one of soluble salts; the trivalent inorganic metal salt is Cr3+，Fe3+，Al3+And B (OH)4 -，NO3 -，Cl-，F-，HPO3 -Constitute one of the soluble salts.
5. The method of making ultra-high load achievable oil-based lubricant additive of claim 3, wherein: the polyhydric alcohols are one or more of glycol and derivatives thereof with volume concentration not less than 95%.
6. The method of making ultra-high load achievable oil-based lubricant additive of claim 3, wherein: the molar ratio of the divalent metal ions to the trivalent metal ions is 2-4: 1, the molar ratio of urea to trivalent metal ions is 6-8: 1.
7. the method of making ultra-high load achievable oil-based lubricant additive of claim 3, wherein: the concentration range of the divalent metal salt is 0.1-100 mmol/L, the concentration range of the trivalent metal salt is 0.05-50 mmol/L, and the concentration of the urea is 0.35-350 mmol/L.
8. The method of making ultra-high load achievable oil-based lubricant additive of claim 3, wherein: and heating in a vacuum box at the heating temperature of 100-120 ℃ in the second step.
9. Use of an oil-based lubricating additive prepared by the process of any one of claims 3 to 8, characterized in that: the lubricating liquid containing the hydrotalcite nanosheets has ultrahigh loading capacity, and the loading capacity can be higher than 2000N.
CN202110325960.5A 2021-03-26 2021-03-26 Preparation method and application of oil-based lubricating additive capable of realizing ultrahigh load Active CN113150855B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110325960.5A CN113150855B (en) 2021-03-26 2021-03-26 Preparation method and application of oil-based lubricating additive capable of realizing ultrahigh load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110325960.5A CN113150855B (en) 2021-03-26 2021-03-26 Preparation method and application of oil-based lubricating additive capable of realizing ultrahigh load

Publications (2)

Publication Number Publication Date
CN113150855A true CN113150855A (en) 2021-07-23
CN113150855B CN113150855B (en) 2022-07-26

Family

ID=76884935

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110325960.5A Active CN113150855B (en) 2021-03-26 2021-03-26 Preparation method and application of oil-based lubricating additive capable of realizing ultrahigh load

Country Status (1)

Country Link
CN (1) CN113150855B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3015429A1 (en) * 2014-10-30 2016-05-04 Wintershall Holding GmbH Monolayer from at least one layered double hydroxide (LDH)
CN107903986A (en) * 2017-10-30 2018-04-13 汪涛 A kind of preparation method of additive for wear resistance of lubricating oil
CN109722323A (en) * 2019-01-04 2019-05-07 清华大学 A kind of preparation method of polyethers hydrotalcite mixed solution

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3015429A1 (en) * 2014-10-30 2016-05-04 Wintershall Holding GmbH Monolayer from at least one layered double hydroxide (LDH)
CN107903986A (en) * 2017-10-30 2018-04-13 汪涛 A kind of preparation method of additive for wear resistance of lubricating oil
CN109722323A (en) * 2019-01-04 2019-05-07 清华大学 A kind of preparation method of polyethers hydrotalcite mixed solution

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
KUNPENG WANG，ET AL.: "Superior extreme pressure properties of different layer LDH nanoplatelets used as boundary lubricants", 《APPLIED SURFACE SCIENCE》 *
李硕等: "镁铝和锌铝水滑石作为润滑油添加剂的摩擦性能和机理", 《硅酸盐学报》 *

Also Published As

Publication number Publication date
CN113150855B (en) 2022-07-26

Similar Documents

Publication Publication Date Title
Du et al. Preparation, characterization and lubrication performances of graphene oxide-TiO2 nanofluid in rolling strips
Li et al. Lubrication performance and mechanisms of Mg/Al-, Zn/Al-, and Zn/Mg/Al-layered double hydroxide nanoparticles as lubricant additives
Vattikuti et al. Synthesis and characterization of molybdenum disulfide nanoflowers and nanosheets: nanotribology
Zhao et al. In situ green synthesis of the new sandwichlike nanostructure of Mn3O4/graphene as lubricant additives
Wu et al. Tribological properties of oleic acid-modified zinc oxide nanoparticles as the lubricant additive in poly-alpha olefin and diisooctyl sebacate base oils
US8648019B2 (en) Materials as additives for advanced lubrication
He et al. Preliminary investigations on the tribological performance of hexagonal boron nitride nanofluids as lubricant for steel/steel friction pairs
Rajendhran et al. Enhancing the thermophysical and tribological performance of gear oil using Ni-promoted ultrathin MoS2 nanocomposites
WO2015147937A2 (en) Nanosheet compositions and their use in lubricants and polishing slurries
Samanta et al. Covalently linked hexagonal boron nitride-graphene oxide nanocomposites as high-performance oil-dispersible lubricant additives
Zhao et al. Synthesis of water-soluble Cu nanoparticles and evaluation of their tribological properties and thermal conductivity as a water-based additive
Wang et al. Superior extreme pressure properties of different layer LDH nanoplatelets used as boundary lubricants
Meng et al. Nickel/multi-walled carbon nanotube nanocomposite synthesized in supercritical fluid as efficient lubricant additive for mineral oil
Wu et al. The tribological mechanism of cerium oxide nanoparticles as lubricant additive of poly-alpha olefin
CN106867604B (en) Graphene-hydrotalcite-like compound and preparation method and application thereof
Li et al. Friction performance and mechanisms of calcined products of Mg/Al layered double hydroxides as lubricant additives
CN106085551B (en) A kind of graphene-based wear-resistant self-repair material of high molecular nanometer alloy and its preparation method and application
CN113150855B (en) Preparation method and application of oil-based lubricating additive capable of realizing ultrahigh load
Wei et al. MoS2-functionalized attapulgite hybrid toward high-performance thickener of lubricating grease
CN109722323B (en) Preparation method of polyether hydrotalcite mixed solution
CN113046160B (en) Polyhydroxy functionalized ionic liquid lubricant and preparation method thereof
Saini et al. Unexplored solid lubricity of Titanium nanoparticles in oil to modify the metallic interfaces
Cheng et al. MoS2/montmorillonite nanocomposite: Preparation, tribological properties, and inner synergistic lubrication
Huynh et al. Tribo-induced catalytically active oxide surfaces enabling the formation of the durable and high-performance carbon-based tribofilms
CN107523375B (en) antiwear agent special for lubricating oil and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant