CN116004300A - Preparation method of molybdenum disulfide composite nano zinc oxide high-temperature lubricant - Google Patents
Preparation method of molybdenum disulfide composite nano zinc oxide high-temperature lubricant Download PDFInfo
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 239000011787 zinc oxide Substances 0.000 title claims abstract description 56
- 239000000314 lubricant Substances 0.000 title claims abstract description 52
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910052982 molybdenum disulfide Inorganic materials 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims abstract description 36
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims abstract description 23
- 235000018660 ammonium molybdate Nutrition 0.000 claims abstract description 23
- 239000011609 ammonium molybdate Substances 0.000 claims abstract description 23
- 229940010552 ammonium molybdate Drugs 0.000 claims abstract description 23
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000008367 deionised water Substances 0.000 claims abstract description 10
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 10
- 239000002105 nanoparticle Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000001291 vacuum drying Methods 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 8
- 239000011259 mixed solution Substances 0.000 claims abstract description 7
- 239000002244 precipitate Substances 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 3
- 238000009210 therapy by ultrasound Methods 0.000 claims description 6
- 238000003760 magnetic stirring Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims 1
- 238000000527 sonication Methods 0.000 claims 1
- 238000001027 hydrothermal synthesis Methods 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000011065 in-situ storage Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 description 15
- 238000000576 coating method Methods 0.000 description 15
- 230000001050 lubricating effect Effects 0.000 description 10
- 238000005461 lubrication Methods 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229910001067 superalloy steel Inorganic materials 0.000 description 3
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004005 microsphere Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- -1 transition metal group disulfides Chemical class 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- GPBUGPUPKAGMDK-UHFFFAOYSA-N azanylidynemolybdenum Chemical compound [Mo]#N GPBUGPUPKAGMDK-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010952 in-situ formation Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007709 nanocrystallization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000011206 ternary composite Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The invention relates to a preparation method of a molybdenum disulfide composite nano zinc oxide high-temperature lubricant, which comprises the steps of dispersing ammonium molybdate and thiourea with a molar ratio of 1:1 into deionized water, adding ZnO nano particles according to a molar ratio of 1:6-9 of the ammonium molybdate to ZnO after completely and uniformly dispersing, and finally preserving the fully mixed solution at 200-240 ℃ for 6-36 hours and then naturally coolingCooling to room temperature, washing, filtering, centrifuging to collect powder precipitate, and vacuum drying to obtain MoS 2 -ZnO high temperature lubricant. The invention takes ammonium molybdate, thiourea and nano zinc oxide as main raw materials, prepares an in-situ generated MoS by a one-step hydrothermal method 2 -a high temperature lubricant of ZnO heterojunction structure. The preparation method disclosed by the invention has the advantages of low reaction temperature, mild condition, low energy consumption, easiness in realization, simple preparation process, low cost, easiness in control of the process, short preparation period and environment friendliness.
Description
Technical Field
The invention belongs to the field of high-temperature lubricants, and particularly relates to a preparation method of a molybdenum disulfide composite nano zinc oxide high-temperature lubricant.
Background
Molybdenum disulfide (MoS) 2 ) Belongs to transition metal group disulfides (TMDs), and has a unique sandwich-type layered structure S-Mo-S, wherein the layers are bonded by strong covalent bonds, and the layers are bonded by weak van der Waals force, so that interlayer shearing slippage is easy to occur. Therefore, the high-friction solid lubricant has low friction characteristics, is an excellent solid lubricant, and is widely applied to the aerospace field due to excellent lubricating performance in vacuum and inert gas environments. However, when used in a high temperature environment of 300 ℃ or higher, the heat treatment agent is not limited to MoS 2 The oxidation of dangling bonds or unsaturated bonds existing at the edge with oxygen causes serious deterioration or even failure of high-temperature lubrication performance. Thus, by suitable manufacturing processes and methods, it has been highly urgent and necessary to improve high temperature lubrication and oxidation resistance under a wide range of extreme working conditions.
Chinese patent publication No. CN111961944A proposes the preparation of VN-Ag/MoS 2 The composite material solves the problems of wear resistance and lubrication of parts in the prior wide temperature range, particularly under the high-temperature environment condition, and Chinese patent publication No. CN111455318A proposes a molybdenum nitride/molybdenum disulfide/silver ternary composite method, and the high-temperature lubrication performance is improved by forming a multi-element transition metal nitride coating through compositing and nanocrystallization. Chinese patent publication No. CN114703011A proposes to prepare inorganic salt-based high-temperature lubricant by using molybdenum disulfide, phosphate and other inorganic salts as main raw materials to improve the high-temperature lubrication effect. These are prepared by simple compounding or complex equipment, and have the limitations of uncontrollable preparation process, unstable high-temperature lubrication performance and the like.
Disclosure of Invention
In order to avoid the defects of the prior art, the invention provides a simpler preparation method of a high-temperature lubricant, in particular to a method for preparing in-situ generated MoS by taking ammonium molybdate, thiourea and nano zinc oxide as main raw materials 2 -a high temperature lubricating material of ZnO heterojunction structure.
The above object of the present invention is achieved by the following technical solutions:
a preparation method of a molybdenum disulfide composite nano zinc oxide high-temperature lubricant comprises the steps of dispersing ammonium molybdate and thiourea in a molar ratio of 1:1 into deionized water, adding ZnO nano particles according to a molar ratio of 1:6-9 after completely and uniformly dispersing, magnetically stirring and carrying out ultrasonic treatment until the solutions are fully mixed, finally preserving the mixed solution at 200-240 ℃ for 6-36 hours, naturally cooling to room temperature, washing, filtering, centrifugally collecting powder precipitates, and carrying out vacuum drying to obtain MoS 2 -ZnO high temperature lubricant. Wherein the average particle diameter of the ZnO nano particles is 30+/-10 nm, the temperature of vacuum drying is 60-80 ℃ and the time is 18-24 hours.
In the preparation method of the present invention as described above, the following hydrothermal reaction occurs:
(NH 4 ) 6 Mo 7 O 24 →6NH 3 +7MoO 3 +3H 2 O (1)
CSN 2 H 4 +2H 2 O→2NH 3 +CO 2 +H 2 S (2)
MoO 3 +3H 2 S+H 2 O→MoO 2 +SO 4 2- +2H + (3)
MoO 2 +2H 2 S→MoS 2 +2H 2 O (4)
from the above individual equations, it is evident that under hydrothermal reaction conditions, 1mol of ammonium molybdate and 1mol of thiourea can produce 1mol of MoS 2 Generated MoS 2 In situ formation of MoS with ZnO nanoparticles 2 -ZnO high temperature lubricant.
The invention takes ammonium molybdate, thiourea and nano zinc oxide as main raw materials, prepares an in-situ generated MoS by a one-step hydrothermal method 2 The high-temperature lubricant with the ZnO heterojunction structure can be applied to lubrication and protection of bearings, bushings and the like for aerospace. The preparation method disclosed by the invention has the advantages of low reaction temperature, mild condition, low energy consumption, easiness in realization, simple preparation process, low cost, easiness in control of the process, short preparation period and environment friendliness.
Drawings
FIG. 1 shows MoS at different reaction times in an embodiment of the invention 2 SEM topography of (a);
FIG. 2 is a high temperature lubricant MoS prepared according to the method of the present invention 2 SEM topography of ZnO;
FIG. 3 is a high temperature lubricant MoS prepared according to the method of the present invention 2 -XRD pattern of ZnO;
FIG. 4 is a graph showing the coefficient of friction at 400℃for the high temperature lubricant of example 1;
FIG. 5 is a graph showing the coefficient of friction at 450℃for the high temperature lubricant of example 2;
FIG. 6 is a graph showing the friction coefficient of the high temperature lubricant of example 3 at 450 ℃.
Detailed Description
The present invention will be further described in detail with reference to the drawings and examples for more clearly understood objects, technical solutions and advantages of the present invention.
Example 1
MoS 2 Preparation of ZnO high temperature lubricant:
preparation of MoS by one-step hydrothermal method 2 -ZnO. Firstly, a certain amount of ammonium molybdate and thiourea are weighed in sequence according to the molar ratio of the ammonium molybdate to the thiourea of 1:1, dispersed into a certain amount of deionized water, stirred for 30min by a magnetic stirrer, and treated by ultrasonic for 30min until the ammonium molybdate and the thiourea are completely and uniformly dispersed. Then, a certain amount of ZnO nano particles (30+/-10 nm) are added according to the mol ratio of ammonium molybdate to ZnO of 1:6, and then magnetic stirring is carried out for 60 minutes, and ultrasonic treatment is carried out for 60 minutes until the solution is fully mixed. The mixed solution was transferred to a 100mL polytetrafluoroethylene-lined stainless steel autoclave and stored in an oven at 200 ℃ for 24 hours. After it cooled naturally to room temperature, it was washed with absolute ethanol and deionized water, respectively, and the final powder product was filtered and the precipitate was collected by centrifugation. Finally, vacuum drying at 60 ℃ for 24 hours to obtain the high-temperature lubricant MoS 2 -ZnO。
Using the prepared MoS 2 High temperature lubricant formation MoS of ZnO 2 Process of ZnO composite lubricating coating:
1) The substrate is first surface treated. And (3) polishing the 718 high-temperature alloy steel substrate through 200-mesh, 600-mesh and 1000-mesh sand paper until no scratch exists, and carrying out ultrasonic cleaning for removing greasy dirt and other impurities in an ultrasonic cleaner by using absolute ethyl alcohol and drying. And then carrying out sand blasting treatment on the substrate so as to improve the bonding strength of the coating and the substrate.
2) Next, the lubricant powder sample was pretreated. Weighing a certain amount of MoS 2 The ZnO high-temperature lubricant powder is dispersed into a certain amount of absolute ethyl alcohol, and is subjected to ultrasonic treatment for 4-6 hours to form a uniformly mixed solution, wherein the concentration is 0.1mol/L. And filtering the dispersion liquid by using filter paper, and directly filling the filtrate into a spray can for later use.
3) And finally preparing the coating by adopting an air spraying method. The air pressure is kept between 0.6 and 0.8MPa, the caliber of the spray gun is 1 to 2mm, and the spray gun is kept not to sag. The substrate is horizontally placed, the spray gun is 15-20 cm away from the substrate, the inclination angle is 45 degrees, the reciprocating times are 2-3 times, and the thickness of the coating is 60 mu m. After the coating is prepared, placing the substrate in a vacuum drying oven, and drying for 4-6 hours at the temperature of 60-80 ℃ to obtain MoS 2 -ZnO composite lubricating coating.
Example 2
MoS 2 Preparation of ZnO high temperature lubricant:
preparation of MoS by one-step hydrothermal method 2 -ZnO. Firstly, a certain amount of ammonium molybdate and thiourea are weighed in sequence according to the molar ratio of the ammonium molybdate to the thiourea of 1:1, dispersed into a certain amount of deionized water, stirred for 60min by a magnetic stirrer, and treated by ultrasonic for 20min until the ammonium molybdate and the thiourea are completely and uniformly dispersed. Then, adding a certain amount of ZnO nano particles (30+/-10 nm) according to the molar ratio of ammonium molybdate to ZnO of 1:8, magnetically stirring for 90 minutes, and carrying out ultrasonic treatment for 30 minutes until the solution is fully mixed. The mixed solution was transferred to a 100mL polytetrafluoroethylene-lined stainless steel autoclave and stored in an oven at 220 ℃ for 24 hours. After it cooled naturally to room temperature, it was washed with absolute ethanol and deionized water, respectively, and the final powder product was filtered and the precipitate was collected by centrifugation. Finally, vacuum drying the mixture at 80 ℃ for 18 hours to obtain the high-temperature lubricant MoS 2 -ZnO。
Using the prepared MoS 2 High temperature lubricant formation MoS of ZnO 2 The procedure for the ZnO composite lubricating coating is the same as in example 1 and is not repeated.
Example 3
MoS 2 Preparation of ZnO high temperature lubricant:
preparation of MoS by one-step hydrothermal method 2 -ZnO. Firstly, a certain amount of ammonium molybdate and thiourea are weighed in sequence according to the molar ratio of the ammonium molybdate to the thiourea of 1:1, dispersed into a certain amount of deionized water, stirred for 45min by a magnetic stirrer, and treated by ultrasonic for 25min until the ammonium molybdate and the thiourea are completely and uniformly dispersed. Then, a certain amount of ZnO nano particles (30+/-10 nm) are added according to the mol ratio of ammonium molybdate to ZnO of 1:9, and then magnetic stirring is carried out for 75min, and ultrasonic treatment is carried out for 45min until the solution is fully mixed. The mixed solution was transferred to a 100mL polytetrafluoroethylene-lined stainless steel autoclave and stored in an oven at 240 ℃ for 24 hours. After it cooled naturally to room temperature, it was washed with absolute ethanol and deionized water, respectively, and the final powder product was filtered and the precipitate was collected by centrifugation. Finally, vacuum drying at 70 ℃ for 20 hours to obtain the high-temperature lubricant MoS 2 -ZnO。
Using the prepared MoS 2 High temperature lubricant formation MoS of ZnO 2 The procedure for the ZnO composite lubricating coating is the same as in example 1 and is not repeated.
FIG. 1 shows the MoS synthesized under different reaction conditions according to the technical scheme of the invention 2 As shown in the figure, the SEM morphology of the product can be well regulated and controlled by controlling the content of each precursor and the reaction conditions (temperature, time and the like). FIG. 2 shows a high temperature lubricant MoS prepared according to example 1 2 SEM morphology of ZnO, as shown, moS can be seen 2 The microsphere is formed by self-assembling 2D flaky petals in random directions, and ZnO nano particles are distributed in the petals or the wrinkled irregular microsphere. FIG. 3 is a high temperature lubricant MoS prepared according to example 1 2 XRD patterns of ZnO, from which it can be seen that the phases have all been detected, the incorporation of ZnO into the composite reduces the original peak intensity. Analytical tables for SEM and XRDThe sign result shows that the high-temperature lubricant MoS has been successfully prepared 2 -ZnO。
The performance detection method of the high-temperature lubricant comprises the following steps:
frictional wear performance was evaluated by the reciprocating mode of the frictional wear tester/LMT (Rtec, america), the dual ball was ceramic (Si 3 N 4 ) Ball, temperature: room temperature-1000 ℃, measuring range of force sensor: 2-200N, resolution of 0.6mN.
In example 1, the prepared high temperature lubricant was sprayed on 718 superalloy steel substrate to form a lubricating coating having a thickness of about 60 μm, and then the high temperature lubrication frictional wear properties of the lubricant/coating were evaluated by LMT (Rtec, america). The dual ball is ceramic (Si) 3 N 4 ) Ball, load 10N, frequency 3HZ, run time 30min, experiment temperature 400 ℃.
The high temperature lubricant of example 1 has a small coefficient of friction, about 0.29, and the data is stable. The lubricant may reduce the coefficient of friction by more than 20% compared to a non-lubricated condition. The friction coefficient curve is shown in fig. 4.
In example 2, the prepared high temperature lubricant was sprayed on 718 superalloy steel substrate to form a lubricating coating having a thickness of about 60 μm, and then the high temperature frictional wear properties of the lubricant/coating were evaluated using LMT (Rtec, america). The dual ball is ceramic (Si) 3 N 4 ) Ball, load 10N, frequency 3HZ, run time 5min, experiment temperature 450 DEG C
The high temperature lubricant of example 2 has a low coefficient of friction, about 0.25, and is stable in data. The lubricant may reduce the coefficient of friction by more than 30% compared to a non-lubricated condition. The friction coefficient curve is shown in fig. 5.
In example 3, the prepared high temperature lubricant was sprayed on 718 superalloy steel substrate to form a lubricating coating having a thickness of about 60 μm, and then the high temperature lubrication frictional wear properties of the lubricant/coating were evaluated by LMT (Rtec, america). The dual ball is ceramic (Si) 3 N 4 ) Ball, load 10N, frequency 3HZ, run time 5min, experiment temperature 500 DEG C
The high temperature lubricant of example 3 had a small coefficient of friction, about 0.29, and the data was stable. The lubricant may reduce the coefficient of friction by more than 10% compared to a non-lubricated condition. The friction coefficient curve is shown in fig. 6.
The invention takes ammonium molybdate, thiourea and nano zinc oxide as main raw materials, prepares an in-situ generated MoS by a one-step hydrothermal method 2 The high-temperature lubricant with the ZnO heterojunction structure can be applied to lubrication and protection of bearings, bushings and the like for aerospace. Compared with the prior art, the preparation method is completed by a one-step method, the preparation method is simpler, the preparation period is short, the preparation is easy to realize, and the morphology and the size of the product can be well regulated and controlled by controlling the content of each precursor, the type of the solvent, the reaction temperature and the reaction time. The prepared lubricant is deposited on the surface of the matrix by a spraying method, is simple and convenient, and has certain advancement. Meanwhile, the prepared lubricant still has better high-temperature lubricating performance at 500 ℃.
Claims (6)
1. A preparation method of a molybdenum disulfide composite nano zinc oxide high-temperature lubricant comprises the steps of dispersing ammonium molybdate and thiourea with a molar ratio of 1:1 into deionized water, adding ZnO nano particles according to a molar ratio of 1:6-9 of the ammonium molybdate to ZnO after completely and uniformly dispersing, finally preserving the fully mixed solution at 200-240 ℃ for 6-36 hours, naturally cooling to room temperature, washing, filtering, centrifugally collecting powder precipitate, and vacuum drying to obtain MoS 2 -ZnO high temperature lubricant.
2. The method of claim 1, wherein the ZnO nanoparticles have an average particle diameter of 30±10nm.
3. The method of claim 1, wherein said thoroughly mixing is accomplished by magnetic stirring and sonication.
4. A method according to claim 3, wherein the magnetic stirring is carried out for a period of 60 to 90 minutes and the ultrasonic treatment is carried out for a period of 30 to 60 minutes.
5. The method according to claim 1, wherein the vacuum drying is performed at a temperature of 60 to 80 ℃ for a time of 18 to 24 hours.
6. The method according to claim 1, wherein the ammonium molybdate and thiourea are magnetically stirred for 30 to 60 minutes and sonicated for 20 to 30 minutes while being dispersed in deionized water.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649324A (en) * | 2015-01-21 | 2015-05-27 | 济南大学 | Preparation method of molybdenum disulfide/zinc oxide nanocomposite material |
| US20190039913A1 (en) * | 2017-08-01 | 2019-02-07 | Iowa State University Research Foundation, Inc. | Preparation of metal chalcogenides |
| CN110028997A (en) * | 2019-04-16 | 2019-07-19 | 中国科学院兰州化学物理研究所 | The preparation of one type graphite phase carbon nitride/molybendum disulfide complexes and application as solid lubricant |
| WO2022177798A1 (en) * | 2021-02-17 | 2022-08-25 | John Crane Inc. | Low friction coatings |
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2023
- 2023-01-15 CN CN202310063195.3A patent/CN116004300A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649324A (en) * | 2015-01-21 | 2015-05-27 | 济南大学 | Preparation method of molybdenum disulfide/zinc oxide nanocomposite material |
| US20190039913A1 (en) * | 2017-08-01 | 2019-02-07 | Iowa State University Research Foundation, Inc. | Preparation of metal chalcogenides |
| CN110028997A (en) * | 2019-04-16 | 2019-07-19 | 中国科学院兰州化学物理研究所 | The preparation of one type graphite phase carbon nitride/molybendum disulfide complexes and application as solid lubricant |
| WO2022177798A1 (en) * | 2021-02-17 | 2022-08-25 | John Crane Inc. | Low friction coatings |
Non-Patent Citations (2)
| Title |
|---|
| SARDAR ALI KHAN ET AL.: "Enhanced photoluminescence performance of MoS2 nanostructures after amalgamation with ZnO NPs", 《OPTIK-INTERNATIONAL JOURNAL FOR LIGHT AND ELECTRON OPTIC》, vol. 220, 31 July 2020 (2020-07-31), pages 165201 * |
| 刘玉应: "二硫化钼单体及其异质结的光催化性能研究", 《中国优秀硕士学位论文全文数据库 (工程科技Ⅰ辑)》, no. 10, 31 October 2018 (2018-10-31), pages 014 - 189 * |
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