CN110551556B - Quaternary phosphonium salt-two-dimensional material composite lubricating additive, preparation method and use method thereof, and industrial lubricating oil - Google Patents
Quaternary phosphonium salt-two-dimensional material composite lubricating additive, preparation method and use method thereof, and industrial lubricating oil Download PDFInfo
- Publication number
- CN110551556B CN110551556B CN201910680868.3A CN201910680868A CN110551556B CN 110551556 B CN110551556 B CN 110551556B CN 201910680868 A CN201910680868 A CN 201910680868A CN 110551556 B CN110551556 B CN 110551556B
- Authority
- CN
- China
- Prior art keywords
- phosphonium salt
- quaternary phosphonium
- dimensional material
- ionic liquid
- 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.)
- Active
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
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/12—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having a phosphorus-to-carbon bond
-
- 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
- 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
- C10M2201/061—Carbides; Hydrides; Nitrides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
-
- 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/06—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds
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 a quaternary phosphonium salt-two-dimensional material composite lubricating additive, a preparation method, a using method and industrial lubricating oil, wherein the preparation method comprises the following steps: a1: mixing the quaternary phosphonium salt ionic liquid and the two-dimensional material according to a preset proportion, and adding the mixture into grinding equipment; a2: and grinding the mixture of the quaternary phosphonium salt ionic liquid and the two-dimensional material by using grinding equipment, wherein the lamellar structure of the two-dimensional material is kept complete in the grinding process. According to the preparation method of the quaternary phosphonium salt-two-dimensional material composite lubricant additive, provided by the invention, the composite lubricant additive with excellent dispersion stability and excellent tribological performance can be prepared only by simply grinding the mixture of the quaternary phosphonium salt ionic liquid and the two-dimensional material powder.
Description
Technical Field
The invention belongs to the field of application of lubricating materials, and particularly relates to a quaternary phosphonium salt-two-dimensional material composite lubricating additive, a preparation method and a use method thereof, and industrial lubricating oil.
Background
Two-dimensional materials (such as graphene, boron nitride, transition metal sulfides, carbides, nitrides, and carbonitrides) have proven to have excellent tribological properties, but have poor dispersion stability in base oil and are prone to agglomeration and precipitation, which greatly limits the practical application of two-dimensional materials in lubricating oils. In addition, with the development of mechanical equipment towards rapidity and heavy load, the single two-dimensional material as an oil additive cannot meet the requirements of the mechanical equipment on the bearing and antifriction and antiwear performances of the lubricant. Therefore, how to improve the compatibility between the two-dimensional material and the lubricating oil and improve the bearing capacity of the two-dimensional material lubricating system becomes a common problem in the industry.
In recent years, scholars and engineers at home and abroad use surface modifiers and active agents (such as oleic acid, oleylamine, polydopamine, aminoazobenzene, phenylenediamine and aryldiazo) to prepare a series of functionalized two-dimensional materials, and the functionalized two-dimensional materials show good dispersibility in water, organic reagents and base oil. The introduction of the surface modifier and the active agent improves the compatibility of the two-dimensional material and the solvent, but the surface modifier and the active agent have poor lubricating performance, so the surface modifier and the active agent cannot generate good synergistic lubricating effect with the two-dimensional material, and the requirement of mechanical equipment on the performance of the lubricating agent cannot be met under severe working conditions. In addition, the introduced modifying reagent is harmful to the environment and human body, and does not accord with the environmental protection idea advocated by the nation and the society.
The ionic liquid is green and environment-friendly liquid molten salt and has good physical and chemical properties and lubricating property. Therefore, the ionic liquid functionalized two-dimensional material has a great application prospect as a lubricating additive. The most common imidazole ionic liquid is often used for preparing and modifying two-dimensional materials, but due to the inherent polarity, the modified two-dimensional materials can only be dispersed in water or polar oil (polyethylene glycol), and most of alkane (mineral oil) and olefin (poly-alpha olefin) base oil used in the industry are nonpolar oils, so that the imidazole ionic liquid modified two-dimensional material additive is difficult to realize wide application. Therefore, a modified two-dimensional material composite lubricating additive which has excellent dispersion stability in non-polarity and obvious synergistic lubricating effect is needed.
Disclosure of Invention
The invention aims to provide a quaternary phosphonium salt-two-dimensional material composite lubricating additive which has excellent dispersibility in industrial oil and excellent tribological performance and simultaneously realizes the synergistic lubrication of quaternary phosphonium salt ionic liquid and a two-dimensional material;
the second purpose of the invention is to provide a preparation method of the quaternary phosphonium salt-two-dimensional material composite lubricant additive, the method can prepare the composite lubricant additive with excellent dispersion stability and excellent tribological property only by simple grinding, the method is simple, the cost is lower, the environment is protected, and the method can be industrially produced in batch;
the third purpose of the invention is to provide a method for using the quaternary phosphonium salt-two-dimensional material composite lubricant additive;
a fourth object of the present invention is to provide an industrial lubricating oil capable of maintaining stable lubricating performance under severe environments.
In order to solve the problems, the technical scheme of the invention is as follows:
a preparation method of a quaternary phosphonium salt-two-dimensional material composite lubricating additive comprises the following steps:
a1: mixing the quaternary phosphonium salt ionic liquid and the two-dimensional material according to a preset proportion, and adding the mixture into grinding equipment;
a2: and grinding the mixture of the quaternary phosphonium salt ionic liquid and the two-dimensional material by using grinding equipment, wherein the lamellar structure of the two-dimensional material is kept complete in the grinding process.
Preferably, the ratio of the volume (ml) of the quaternary phosphonium salt ionic liquid to the mass (mg) of the two-dimensional material is 1: 1000-1: 100.
Preferably, in the step a2, the quaternary phosphonium salt ionic liquid and the two-dimensional material mixture are ground and uniformly mixed by using a grinding device.
Preferably, the quaternary phosphonium salt ionic liquid is an oil-soluble ionic liquid containing phosphorus in the anion or cation.
Preferably, the two-dimensional material is selected from: one or more of graphene, boron nitride, transition metal sulfide, carbide, nitride, and carbonitride.
Preferably, the grinding apparatus comprises a manual grinding apparatus and a mechanical grinding apparatus.
The invention also provides a quaternary phosphonium salt-two-dimensional material composite lubricating additive prepared by the preparation method in the embodiment.
The invention also provides a quaternary phosphonium salt-two-dimensional material composite lubricating additive which is a physical mixture of quaternary phosphonium salt ionic liquid and a two-dimensional material, wherein the ratio of the volume (ml) of the quaternary phosphonium salt ionic liquid to the mass (mg) of the two-dimensional material is 1: 1000-1: 100.
The invention also provides a using method of the quaternary phosphonium salt-two-dimensional material composite lubricating additive, and the composite lubricating additive is mixed with industrial lubricating oil, so that the mass ratio of the composite lubricating additive is 0-2 wt%.
The invention also provides industrial lubricating oil which contains the composite lubricating additive in the embodiment, and the mass percentage of the composite lubricating additive is 0-2 wt%.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
according to the preparation method of the quaternary phosphonium salt-two-dimensional material composite lubricant additive, provided by the invention, the composite lubricant additive with excellent dispersion stability and excellent tribological performance can be prepared only by simply grinding the mixture of the quaternary phosphonium salt ionic liquid and the two-dimensional material powder. According to the invention, the quaternary phosphonium salt ionic liquid is adopted to modify the two-dimensional material, so that the dispersion stability of the two-dimensional material is improved, and the synergistic lubrication of the quaternary phosphonium salt ionic liquid and the two-dimensional material is realized. Particularly under severe working conditions, compared with base oil and common two-dimensional material lubricating oil, the quaternary phosphorus salt-two-dimensional material composite lubricating additive can greatly reduce the friction coefficient and effectively avoid the seizure of mechanical moving parts. The method has low requirement on equipment, is simple to operate, has an environment-friendly preparation process, can realize rapid and batch production, meets the national advocated low-carbon, energy-saving and environment-friendly requirements and the requirements of enterprises on high efficiency and low cost, and greatly promotes the application of the two-dimensional additive in the field of lubricating oil.
Drawings
FIG. 1 is a structural formula of two typical quaternary phosphonium salt ionic liquids;
FIG. 2 is a photograph of 0.5 wt% graphene lube oil (left) and 0.5 wt% quaternary phosphonium salt-graphene lube oil (right) after sonication for 20 min;
FIG. 3 is a photograph of 0.5 wt% graphene lube oil (left) and 0.5 wt% quaternary phosphonium salt-graphene lube oil (right) after standing for one month;
FIG. 4 is a transmission oil base oil extreme pressure performance curve;
FIG. 5 is a 0.5 wt% graphene lubricating oil extreme pressure performance curve;
FIG. 6 is a 0.5 wt% quaternary phosphonium salt-graphene lubricating oil extreme pressure performance curve;
FIG. 7 is a plot of friction coefficients for a transmission oil base stock, 0.5 wt% quaternary phosphonium salt lubricant, 0.5 wt% graphene lubricant, and 0.5 wt% quaternary phosphonium salt-graphene lubricant at 100N, 25Hz, 25 deg.C;
FIG. 8 is a friction coefficient curve of a transmission oil base oil, 0.5 wt% graphene lubricating oil and 0.5 wt% quaternary phosphonium salt-graphene lubricating oil under 100N, 25Hz, 100 deg.C conditions;
FIG. 9 is a graph of the coefficient of friction of a 0.5 wt% quaternary phosphonium salt-graphene lubricant at 100N, 25Hz, 100 ℃.
Detailed Description
The quaternary phosphonium salt-two-dimensional material composite lubricating additive, the preparation method and the use method thereof and the industrial lubricating oil provided by the invention are further described in detail by combining the attached drawings and the specific embodiment. Advantages and features of the present invention will become apparent from the following description and from the claims.
It should be noted that two-dimensional materials (such as graphene, boron nitride, transition metal sulfide, boron nitride, carbide, nitride, and carbonitride) have been demonstrated to have excellent tribological properties, but their dispersion stability in base oil is poor and they are prone to agglomeration and precipitation, which greatly limits the practical application of two-dimensional materials in lubricating oils. Therefore, how to improve the compatibility between the two-dimensional material and the lubricating oil and improve the bearing capacity of the two-dimensional material lubricating system becomes a common problem in the industry.
In the prior art, a chemical surface modifier and an active agent are mostly adopted to modify a two-dimensional material, but the surface modifier and the active agent do not have a lubricating effect, so that the surface modifier and the active agent cannot generate synergistic lubrication with the two-dimensional material, and the chemical agent can damage the true structure of graphene. In addition, most chemical reagents have toxicity, the modification process is complex, waste liquid treatment is needed, and the environment-friendly concept advocated by the nation and the society is not met.
The ionic liquid is green and environment-friendly liquid molten salt and has good physical and chemical properties and lubricating property. Therefore, the ionic liquid functionalized two-dimensional material has a great application prospect as a lubricating additive. Imidazole ionic liquid is commonly used for preparing and modifying two-dimensional materials, but due to the inherent polarity, the modified two-dimensional materials can only be dispersed in water or polar oil (polyethylene glycol), and most of alkane (mineral oil) and olefin (poly-alpha olefin) base oil used in the industry are nonpolar oils, so that the imidazole ionic liquid modified two-dimensional material additive is difficult to realize wide application.
The inventor finds that the quaternary phosphonium salt ionic liquid well solves the problem, and the cation and anion centers of the quaternary phosphonium salt ionic liquid are P atoms, and straight-chain or branched-chain alkane is grafted on the P atoms. Although a large number of researchers have proved that the quaternary phosphonium salt ionic liquid has high solubility as a non-polar oil additive, the bearing capacity and the wear resistance of the base oil can be greatly improved. However, at present, domestic and foreign researches on modification of a two-dimensional material by using a quaternary phosphonium salt ionic liquid and how to modify the two-dimensional material so as to improve the dispersion stability of the two-dimensional material and simultaneously realize the synergistic lubrication of the quaternary phosphonium salt ionic liquid and the two-dimensional material are rarely reported.
In view of the above, the invention discloses a method for preparing a quaternary phosphonium salt-two-dimensional material composite lubricating additive, which comprises the following steps:
a1: mixing the quaternary phosphonium salt ionic liquid and the two-dimensional material according to a preset proportion, and adding the mixture into grinding equipment;
a2: and grinding the mixture of the quaternary phosphonium salt ionic liquid and the two-dimensional material by using grinding equipment, wherein the lamellar structure of the two-dimensional material is kept complete in the grinding process.
In a preferred embodiment of the invention, the ratio of the volume (mL) of the quaternary phosphonium salt ionic liquid to the mass (mg) of the two-dimensional material is 1: 1000-1: 100.
In a preferred embodiment of the present invention, in step a2, the mixture of the quaternary phosphonium salt ionic liquid and the two-dimensional material is ground and uniformly mixed by using a grinding device. The uniform mixing refers to that thermogravimetric analysis is carried out on the quaternary phosphorus salt-two-dimensional material composite lubricating additive by using a random sampling method, and the thermogravimetric curves of the quaternary phosphorus salt-two-dimensional material composite lubricating additive are basically overlapped to prove that the grinding and the uniform mixing are carried out.
In a preferred embodiment of the invention, the quaternary phosphonium salt ionic liquid is an oil-soluble ionic liquid containing phosphorus in anions or cations.
In a preferred embodiment of the present invention, the two-dimensional material is selected from the group consisting of: one or more of graphene, boron nitride, transition metal sulfide, carbide, nitride, and carbonitride.
In a preferred embodiment of the present invention, the grinding apparatus includes a manual grinding apparatus and a mechanical grinding apparatus. Manual grinding equipment such as agate mortar, mechanical grinding equipment such as stirring equipment, ball mill, ultrasonic or shaker.
The invention also provides a quaternary phosphonium salt-two-dimensional material composite lubricating additive prepared by the preparation method of the embodiment.
According to the preparation method of the quaternary phosphonium salt-two-dimensional material composite lubricant additive, provided by the invention, the composite lubricant additive with excellent dispersion stability and excellent tribological performance can be prepared only by simply grinding the mixture of the quaternary phosphonium salt ionic liquid and the two-dimensional material powder. According to the invention, the quaternary phosphonium salt ionic liquid is adopted to modify the two-dimensional material, and physical modification is adopted, so that the use of chemical reagents harmful to the environment is avoided, the dispersion stability of the two-dimensional material is improved, and the synergistic lubrication of the quaternary phosphonium salt ionic liquid and the two-dimensional material is realized. Particularly under severe working conditions, compared with base oil and common two-dimensional material lubricating oil, the quaternary phosphorus salt-two-dimensional material composite lubricating additive can greatly reduce the friction coefficient and effectively avoid the seizure of mechanical moving parts. The method has low requirement on equipment, is simple to operate, has an environment-friendly preparation process, can realize rapid and batch production, meets the national advocated low-carbon, energy-saving and environment-friendly requirements and the requirements of enterprises on high efficiency and low cost, and greatly promotes the application of the two-dimensional additive in the field of lubricating oil.
The invention also provides a quaternary phosphonium salt-two-dimensional material composite lubricating additive which is a physical mixture of quaternary phosphonium salt ionic liquid and a two-dimensional material, wherein the ratio of the volume (mL) of the quaternary phosphonium salt ionic liquid to the mass (mg) of the two-dimensional material is 1: 1000-1: 100.
The invention also provides a using method of the quaternary phosphonium salt-two-dimensional material composite lubricating additive, and the composite lubricating additive is mixed with industrial lubricating oil, so that the mass ratio of the composite lubricating additive is 0-2 wt%.
The invention also provides industrial lubricating oil which contains the composite lubricating additive in the embodiment, and the mass ratio of the composite lubricating additive is 0-2 wt%.
Fig. 1 shows the structures of typical two quaternary phosphonium salt ionic liquids, and the following examples mainly use the two quaternary phosphonium salt ionic liquids to modify two-dimensional materials, but are not limited to the two quaternary phosphonium salt ionic liquids.
Example 1
Will [ P ]66614][DEHP]The quaternary phosphonium salt ionic liquid and graphene are mixed according to the proportion of 1ml: adding 100mg of the quaternary phosphonium salt ionic liquid and the two-dimensional material mixture into a mortar, properly grinding the mixture, and uniformly mixing to obtain the quaternary phosphonium salt-graphene composite lubricant additive.
Example 2
Will [ P ]66614][DEHP]The quaternary phosphonium salt ionic liquid and graphene are mixed according to the proportion of 1ml: adding 300mg of the quaternary phosphonium salt ionic liquid and the two-dimensional material mixture into a mortar, properly grinding the mixture, and uniformly mixing to obtain the quaternary phosphonium salt-graphene composite lubricant additive.
Example 3
Will [ P ]66614][DEHP]The quaternary phosphonium salt ionic liquid and graphene are mixed according to the proportion of 1ml: adding 500mg of the quaternary phosphonium salt ionic liquid and the two-dimensional material mixture into a mortar, properly grinding the mixture, and uniformly mixing to obtain the quaternary phosphonium salt-graphene composite lubricant additive.
Example 4
Will [ P ]66614][DEHP]The quaternary phosphonium salt ionic liquid and graphene are mixed according to the proportion of 1ml: adding 800mg of the quaternary phosphonium salt ionic liquid and the two-dimensional material mixture into a mortar, properly grinding the mixture, and uniformly mixing to obtain the quaternary phosphonium salt-graphene composite lubricant additive.
Example 5
Will [ P ]8888][DEHP]The quaternary phosphonium salt ionic liquid and graphene are mixed according to the proportion of 1ml: adding 300mg of the quaternary phosphonium salt ionic liquid and the two-dimensional material mixture into a mortar, properly grinding the mixture, and uniformly mixing to obtain the quaternary phosphonium salt-graphene composite lubricant additive.
Example 6
Will [ P ]66614][DEHP]The quaternary phosphonium salt ionic liquid and molybdenum disulfide are mixed according to the proportion of 1ml: 300mg of the quaternary phosphonium salt ionic liquid and the two-dimensional material mixture are added into a mortar, and are properly ground and uniformly mixed to obtain the quaternary phosphonium salt-molybdenum disulfide composite lubricant additive.
Example 7
Will [ P ]8888][DEHP]The quaternary phosphonium salt ionic liquid and molybdenum disulfide are mixed according to the proportion of 1ml: 300mg of the quaternary phosphonium salt ionic liquid and the two-dimensional material mixture are added into a mortar, and are properly ground and uniformly mixed to obtain the quaternary phosphonium salt-molybdenum disulfide composite lubricant additive.
Example 8
Will [ P ]66614][DEHP]The quaternary phosphonium salt ionic liquid and boron nitride are mixed according to the proportion of 1ml: 300mg of the quaternary phosphonium salt ionic liquid and the two-dimensional material mixture are added into a mortar, and are properly ground and uniformly mixed to obtain the quaternary phosphonium salt-boron nitride composite lubricating additive.
Example 9
Will [ P ]8888][DEHP]The quaternary phosphonium salt ionic liquid and boron nitride are mixed according to the proportion of 1ml: adding 300mg of the quaternary phosphonium salt ionic liquid and the two-dimensional material mixture into a mortar, properly grinding and uniformly mixing to obtain the quaternary phosphonium salt-boron nitride composite lubricating additive.
Description of the drawings: the proper milling of the quaternary phosphonium salt ionic liquid and the two-dimensional material mixture referred to in the above examples means that the lamellar structure of the two-dimensional material remains intact during milling.
The composite lubricant additive prepared in example 2 was mixed with industrial lubricant, the mass ratio of the composite lubricant additive was 0.5 wt%, the right side of fig. 2 was 0.5 wt% composite lubricant after 20min of ultrasound, and the left side of fig. 2 was a photograph of 0.5 wt% graphene lubricant after 20min of ultrasound, which shows that graphene and lubricant were mixed uniformly and the composite lubricant additive was mixed uniformly with the lubricant. Fig. 3 is a photograph after standing for one month, and it is seen that 0.5 wt% graphene lube oil (left) has graphene precipitated, while the quaternary phosphonium salt-graphene lube oil (right) is still uniformly mixed, and no precipitation or delamination occurs. This fully demonstrates the excellent dispersion stability of the quaternary phosphonium salt-graphene composite lubricant additive.
The quaternary phosphonium salt-graphene composite lubricating additive prepared in example 2 was compared with graphene, quaternary phosphonium salt and transmission oil base oil to characterize the lubricating performance and load-carrying capacity of the composite lubricating additive.
Fig. 4 is a transmission oil base oil extreme pressure performance curve, fig. 5 is a graphene transmission oil extreme pressure performance curve with graphene mass percentage of 0.5 wt%, and fig. 6 is a quaternary phosphonium salt-graphene mass percentage of 0.5 wt% transmission oil extreme pressure performance curve. From FIG. 4 it can be seen that the transmission oil base oil failed after about 450min with a sudden increase in the friction coefficient, with a load carrying capacity of less than 150N; it can be seen from fig. 5 that 0.5 wt% graphene transmission oil failed after about 1450min of friction due to a sudden increase in the friction coefficient, with a load carrying capacity of 300N; from fig. 6, it can be seen that the 0.5 wt% quaternary phosphonium salt-graphene transmission oil fails due to the sudden increase of the friction coefficient after being rubbed for about 3330min, the friction coefficient is stabilized at about 0.12, and the bearing capacity reaches 600N. The quaternary phosphorus salt composite lubricating additive is proved to have excellent tribological performance and increased bearing capacity by comparison.
Fig. 7 shows that a friction experiment is performed on 0.5 wt% of quaternary phosphonium salt modified graphene lubricating oil, transmission oil base oil, 0.5 wt% of graphene lubricating oil and 0.5 wt% of quaternary phosphonium salt lubricating oil under the conditions of a load of 100N, a temperature of 25 ℃ and 25hz, a curve of friction coefficient and friction time is shown in the figure, and it can be seen from the figure that the friction coefficients of the transmission oil base oil, the quaternary phosphonium salt lubricating oil, the graphene lubricating oil and the quaternary phosphonium salt modified graphene lubricating oil are sequentially reduced, which indicates that the quaternary phosphonium salt modified graphene can greatly reduce the friction coefficient of the transmission oil, and the quaternary phosphonium salt modified graphene can reduce the friction coefficient of the graphene lubricating oil as well as the friction coefficient of the quaternary phosphonium salt lubricating oil, and indicates that the quaternary phosphonium salt ionic liquid and the two-dimensional material graphene can cooperatively lubricate and reduce the friction coefficient.
Fig. 8 and 9 show friction curves of 0.5 wt% quaternary phosphonium salt modified graphene dispersed in transmission oil base oil and 0.5 wt% graphene transmission oil and transmission oil under the conditions of 100N load, 100 ℃ and 25hz, and it can be seen from fig. 8 that the transmission oil base oil is failed quickly, while the 0.5 wt% graphene transmission oil is also failed after 40s due to sudden increase of friction coefficient, while the 0.5 wt% quaternary phosphonium salt modified graphene transmission oil has a friction coefficient smaller than that of graphene, and fig. 9 shows the friction coefficient of the modified graphene, and it is seen that the friction coefficient is stable and has no failure. The method fully shows that the composite lubricating additive adopting the quaternary phosphorus salt modified graphene still keeps stable friction performance under severe working conditions and can reduce the friction coefficient.
In summary, the preparation method of the quaternary phosphonium salt-two-dimensional material composite lubricating additive provided by the invention is simple, environment-friendly, capable of being produced in large batch and relatively low in production cost. The prepared composite lubricating additive has good dispersion stability and excellent tribological performance, and can still keep lower friction coefficient and friction stability under severe working conditions.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, it is still within the scope of the present invention if they fall within the scope of the claims of the present invention and their equivalents.
Claims (7)
1. The preparation method of the quaternary phosphonium salt-two-dimensional material composite lubricating additive is characterized by comprising the following steps of:
a1: mixing the quaternary phosphonium salt ionic liquid and the two-dimensional material according to a preset proportion, and adding the mixture into grinding equipment;
a2: grinding the mixture of the quaternary phosphonium salt ionic liquid and the two-dimensional material by using grinding equipment, wherein the lamellar structure of the two-dimensional material is kept complete in the grinding process;
the mass ratio of the volume of the quaternary phosphonium salt ionic liquid to the two-dimensional material is 1mL:1000 mg-1 mL:100 mg;
the quaternary phosphonium salt ionic liquid is oil-soluble ionic liquid containing phosphorus in anions or cations.
2. The method for preparing the quaternary phosphonium salt-two-dimensional material composite lubricant additive according to claim 1, wherein the step A2 is implemented by grinding the mixture of the quaternary phosphonium salt ionic liquid and the two-dimensional material by using a grinding device and mixing uniformly.
3. The method of making a quaternary phosphonium salt-two-dimensional material composite lubricant additive of claim 1, wherein the two-dimensional material is selected from the group consisting of: one or more of graphene, transition metal sulfide, carbide, nitride, carbonitride.
4. The method of claim 1, wherein the milling equipment comprises manual milling equipment and mechanical milling equipment.
5. A quaternary phosphonium salt-two-dimensional material composite lubricant additive, wherein the composite lubricant additive is prepared by the preparation method of any one of claims 1 to 4.
6. The use method of the quaternary phosphonium salt-two-dimensional material composite lubricating additive is characterized in that the composite lubricating additive prepared by the preparation method of any one of claims 1 to 4 is mixed with industrial lubricating oil, and the mass ratio of the composite lubricating additive is more than 0 and less than or equal to 2 wt%.
7. An industrial lubricant comprising the complex lubricant additive according to claim 5, wherein the mass ratio of the complex lubricant additive is greater than 0 and not more than 2 wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680868.3A CN110551556B (en) | 2019-07-26 | 2019-07-26 | Quaternary phosphonium salt-two-dimensional material composite lubricating additive, preparation method and use method thereof, and industrial lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680868.3A CN110551556B (en) | 2019-07-26 | 2019-07-26 | Quaternary phosphonium salt-two-dimensional material composite lubricating additive, preparation method and use method thereof, and industrial lubricating oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110551556A CN110551556A (en) | 2019-12-10 |
| CN110551556B true CN110551556B (en) | 2021-06-04 |
Family
ID=68735505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910680868.3A Active CN110551556B (en) | 2019-07-26 | 2019-07-26 | Quaternary phosphonium salt-two-dimensional material composite lubricating additive, preparation method and use method thereof, and industrial lubricating oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110551556B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111205907A (en) * | 2020-02-27 | 2020-05-29 | 中山大学惠州研究院 | Ionic liquid modified boron nitride lubricating additive and preparation method thereof |
| CN111449608A (en) * | 2020-04-02 | 2020-07-28 | 重庆金山医疗技术研究院有限公司 | Endoscope body and method for improving lubricating performance of endoscope body |
| CN116042291A (en) * | 2023-01-06 | 2023-05-02 | 广州特种承压设备检测研究院 | Lubricating oil composite additive containing graphene molybdenum disulfide of ionic liquid and preparation and application thereof |
| CN116083137A (en) * | 2023-01-30 | 2023-05-09 | 广州特种承压设备检测研究院 | Method for preparing graphene/molybdenum disulfide/ionic liquid lubricating oil additive through microwave hydrothermal method |
| CN117210263A (en) * | 2023-08-04 | 2023-12-12 | 上海应用技术大学 | Ionic liquid functionalized boron nitride lubricating oil additive and preparation method and application thereof |
| CN117210265A (en) * | 2023-08-04 | 2023-12-12 | 上海应用技术大学 | Graphite composite material lubricating oil and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101379168A (en) * | 2006-01-12 | 2009-03-04 | 阿肯色大学评议会 | Nanoparticle compositions and methods for making and using the same |
| CN102730676A (en) * | 2012-07-18 | 2012-10-17 | 中国水产科学研究院黄海水产研究所 | Method for preparing graphene |
| CN105254667A (en) * | 2015-11-17 | 2016-01-20 | 中国科学院兰州化学物理研究所 | Functionalized oil-soluble ionic liquid and preparing method and application thereof |
| CN108707496A (en) * | 2018-04-02 | 2018-10-26 | 湘潭大学 | A kind of high-mechanic two dimension molybdenum disulfide-binary ionic liquid composite lubricating film and preparation method |
| CN108864180A (en) * | 2018-06-21 | 2018-11-23 | 中国科学院兰州化学物理研究所 | Gemini type oil-soluble ionic liquid and its preparation method and application |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016093898A2 (en) * | 2014-08-14 | 2016-06-16 | Ues, Inc. | Lubricant additive |
-
2019
- 2019-07-26 CN CN201910680868.3A patent/CN110551556B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101379168A (en) * | 2006-01-12 | 2009-03-04 | 阿肯色大学评议会 | Nanoparticle compositions and methods for making and using the same |
| CN102730676A (en) * | 2012-07-18 | 2012-10-17 | 中国水产科学研究院黄海水产研究所 | Method for preparing graphene |
| CN105254667A (en) * | 2015-11-17 | 2016-01-20 | 中国科学院兰州化学物理研究所 | Functionalized oil-soluble ionic liquid and preparing method and application thereof |
| CN108707496A (en) * | 2018-04-02 | 2018-10-26 | 湘潭大学 | A kind of high-mechanic two dimension molybdenum disulfide-binary ionic liquid composite lubricating film and preparation method |
| CN108864180A (en) * | 2018-06-21 | 2018-11-23 | 中国科学院兰州化学物理研究所 | Gemini type oil-soluble ionic liquid and its preparation method and application |
Non-Patent Citations (1)
| Title |
|---|
| Controllable selective exfoliation of high-quality graphene nanosheets and nanodots by ionic liquid assisted grinding;Shang Naigui et al.;《Chemical Communications》;20120104;第48卷(第13期);1877-1879 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110551556A (en) | 2019-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110551556B (en) | Quaternary phosphonium salt-two-dimensional material composite lubricating additive, preparation method and use method thereof, and industrial lubricating oil | |
| Wu et al. | Surface-functionalized nanoMOFs in oil for friction and wear reduction and antioxidation | |
| Xiao et al. | 2D nanomaterials as lubricant additive: A review | |
| Tang et al. | Applications of carbon quantum dots in lubricant additives: A review | |
| He et al. | Dialkyl dithiophosphate-functionalized gallium-based liquid-metal nanodroplets as lubricant additives for antiwear and friction reduction | |
| Wang et al. | Study on antiwear and repairing performances about mass of nano-copper lubricating additives to 45 steel | |
| CN103160369B (en) | Self-repairing compound titanium-based grease and preparation method thereof | |
| CN105647612B (en) | A kind of lubricating grease containing nano-carbon material and preparation method thereof | |
| CN103073060B (en) | Method for preparing hexagonal molybdenum disulfide nanosheet as anti-friction additive | |
| Zhao et al. | Synthesis of water-soluble Cu nanoparticles and evaluation of their tribological properties and thermal conductivity as a water-based additive | |
| CN113817530B (en) | Drawing oil containing nano-particle additive | |
| CN105950260B (en) | Obtain the friendly MoS containing lubrication2The method of nano particle lubricating oil | |
| CN104293470A (en) | Preparation method of ionized graphene oxide water-based lubricant additive | |
| Qu et al. | Tribological performance of functionalized ionic liquid and Cu microparticles as lubricating additives in sunflower seed oil | |
| CN112920880A (en) | Preparation method of 2D MOFs nanosheet-based lubricant | |
| CN107090327A (en) | A kind of oleic acid boric acid modification lanthanum stannic oxide/graphene nano composite lubricating oil and preparation method thereof | |
| Dolmatov | Detonation nanodiamonds in oils and lubricants | |
| CN107955669A (en) | Molybdenum disulfide or tungsten disulfide-alkyl mercaptan compound and its application | |
| CN108017939A (en) | Thiadiazoles derivative modified graphene and its preparation method and application | |
| CN107523375B (en) | antiwear agent special for lubricating oil and preparation method thereof | |
| CN103820197B (en) | A kind of complete synthesis metal working fluid | |
| CN102229838A (en) | Preparation method for modified nanometer cerium borate and application of modified nanometer cerium borate as lubricant additive | |
| CN113201390A (en) | Antifriction heat-resistant lithium-based grease and preparation method thereof | |
| CN104498134A (en) | Automobile gear lubricating oil | |
| CN115895765A (en) | Additive for lubricating liquid and ionic liquid-like lubricating liquid |
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 |