CN106811264A - Graphene/molybdenum bisuphide compounded lubricant and preparation method thereof - Google Patents
Graphene/molybdenum bisuphide compounded lubricant and preparation method thereof Download PDFInfo
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- CN106811264A CN106811264A CN201611255933.0A CN201611255933A CN106811264A CN 106811264 A CN106811264 A CN 106811264A CN 201611255933 A CN201611255933 A CN 201611255933A CN 106811264 A CN106811264 A CN 106811264A
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- graphene
- molybdenum bisuphide
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- compounded lubricant
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
-
- 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
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/08—Solids
Abstract
The present invention discloses a kind of Graphene/molybdenum bisuphide composite and its preparation and application.The preparation method is comprised the following steps：1) at room temperature by graphene oxide solution, molybdenum source and surfactant according to mass ratio 1:(10‑20):(20 35) mix in a solvent, are subsequently adding sulphur source, stir, and obtain precursor solution, and the wherein mol ratio of sulphur source and molybdenum source is more than 2:1；2) by step 1) in the precursor solution that obtains be put into 180 DEG C 240 DEG C in ptfe autoclave, preferably 210 240 DEG C；React 12 36h, preferably 24 36h；3) by step 2) suspension that obtains, filtrate deionized water and absolute ethyl alcohol respectively cleaning 3 times, to place and dry 12h in 60 DEG C of vacuum drying ovens；4) by step 3) in prepare product place quartz boat in be heat-treated under inert gas shielding after obtain Graphene/molybdenum bisuphide compounded lubricant.Graphene of the invention/molybdenum bisuphide compounded lubricant has excellent anti-wear and wear-resistant performance, is a kind of basic oil additive of the environmental protection of high-quality.
Description
Technical field
The present invention relates to a kind of kollag field, more particularly to a kind of Graphene/molybdenum bisuphide compounded lubricant and
Its preparation method.
Background technology
Friction and wear is the natural phenomena of generally existing.According to statistics, about 1/3-1/2 in the energy that the world is used
Energy loss in friction.If the frictional force during can plant equipment be worked reduces, useless frictional dissipation is reduced, then
The saving of the energy can necessarily be realized.
Molybdenum bisuphide is a kind of transient metal sulfide with typical sandwich layer structure, the interlayer of its crystal structure
Active force is relatively weak, easily slides, and its sulphur atom being exposed can form stronger adhesive attraction with metal, from
And metal surface is attached to, reduce fretting wear, so as to play a part of lubrication.It has the disadvantage poor thermal conductivity, coefficient of friction also
Not low enough, easy precipitation produces precipitation.
In recent years, continuing to develop with nanometer technology, has emerged the different molybdenum bisuphide for surrounding and watching morphosis.It is different
The molybdenum bisuphide of microstate, its performance difference is larger.Chinese invention patent [publication number CN100355870C] discloses extraction
The method that solvent-thermal method produces spherical molybdenum disulfide antifriction material, spherical fullerene molybdenum disulfide can play " ball bearing " rolling
The effect of dynamic friction, but contact surface of the chondritic of molybdenum bisuphide with interface in friction process is less, and adhesive force is relatively low,
Under mechanical excretion, depart from from frictional interface quickly, have impact on the long-lasting of its anti-wear lubricating.
The same MoS of graphene nano chip architecture2It is similar, it is that coefficient of friction is minimum and frictional behaviour highest material, and have
Mechanical strength and thermal conductivity high, and the element without other corrosivity and environmental pollution, fully meet lubricating oil to antifriction
The environmental requirement of additive.Graphene is added in lubricating oil, the distinctive physical and chemical performance of its nano material can be played, in lubrication
Play a part of pressure-bearing skeleton in oil, the anti-wear performance of matrix can be significantly increased, but its friction reducing effect is general, and graphite
Alkene preparation cost is higher, and addition is restricted.
Molybdenum bisuphide has unique and similar two-dimensional layer nanostructured with Graphene, and both are new by compound composition
There is new interaction in heterogeneous interlayer structure, the structure, help to obtain new, more excellent performance.
The content of the invention
Problems to be solved by the invention
For above-mentioned prior art, the invention provides a kind of preparation method of Graphene/molybdenum bisuphide compounded lubricant,
While with excellent anti-wear and wear-resistant performance, also with excellent heat conductivility, product quality is steady for the composite of preparation
Fixed controllable, preparation method is simple.
The scheme for solving problem
To realize object above, the invention provides the preparation method of above-mentioned Graphene/molybdenum bisuphide compounded lubricant, bag
Include following steps：
1) at room temperature by graphene oxide solution, molybdenum source and surfactant according to mass ratio 1:(10-20):(20-35)
Mix in a solvent, be subsequently adding sulphur source, stir, obtain precursor solution, and the mol ratio of wherein sulphur source and molybdenum source is big
In 2:1；
2) by step 1) in the precursor solution that obtains be put into 180 DEG C -240 DEG C in ptfe autoclave, preferably
210-240℃；Reaction 12-36h, preferably 24-36h；
3) by step 2) suspension that obtains, filtrate deionized water and absolute ethyl alcohol respectively cleaning 3 times, place 60 DEG C it is true
12h is dried in empty baking oven；
4) by step 3) in prepare product place quartz boat in be heat-treated under inert gas shielding, heat treatment temperature
It is 700-900 DEG C to spend, preferably 800 DEG C；Heat treatment time is 1-3h, preferably 2h.
Further, the step 1) solvent is one or two in deionized water or ethylene glycol.
Further, the step 1) described in sulphur source be thiocarbamide, vulcanized sodium, sodium thiosulfate or ammonium sulfide in one kind
Or any two or more combination；The molybdenum source is one or two in two molybdic acid hydrate sodium or ammonium molybdate.
Further, the step 1) surfactant be polyvinylpyrrolidone, cetyl trimethylammonium bromide, ten
One or more combination in dialkyl benzene sulfonic acids sodium, polyvinyl alcohol, preferably cetyl trimethylammonium bromide or
One or two in polyvinylpyrrolidone.
Further, the step 3) in inert gas be nitrogen, argon gas or nitrogen and argon gas mixture.
The beneficial effect of the invention
It is well known that Graphene is the carbon material neatly arranged by hexagonal lattice by carbon atom, with very thin
Nano-layer structure, and with mechanical strength high, thermal conductivity and excellent thermal conductivity.The high-quality characteristic of the Graphene is proper
Molybdenum bisuphide poor thermal conductivity, coefficient of friction deficiency low not enough are compensate for well.The present invention is effectively by molybdenum bisuphide and graphite
Alkene is combined, with advantages below：(1) present invention is effectively ensured curing using in graphenic surface in-situ preparation molybdenum bisuphide
Molybdenum graphenic surface or defect gap dispersiveness and being firmly bonded property between the two, due to nano flake have it is big
Specific surface area, and then there is good adsorption function to frictional interface, one layer of lubricating film is formed in metal surface, ensure lubrication
Wear-resistant is long-lasting, hinders the intermetallic directly contact of friction pair, while reducing the possibility of adhesive wear；(2) have
Thermal conductivity factor higher, the heat that will can be produced in friction process is removed in time；(3) preparation process is simple, yield is high, reappearance
It is good, and there is excellent dispersiveness and stability between each component, for exploitation high-quality lubricant lays the foundation.
The present invention is using Rigaku D/Max 2500X x ray diffraction analysis xs instrument (with Cu K target activations (40kV, 20mA)Sweep limits is 10-80 °, and sweep speed is 5 ° of min-1) and field emission electron flying-spot microscope (Field-
Emission scanning electron microscope, FESEM) product is characterized.
The technique effect of design of the invention, concrete structure and generation is described further below in conjunction with accompanying drawing, to fill
Ground is divided to understand the purpose of the present invention, feature and effect.
Brief description of the drawings
Fig. 1 is the scanning electron microscope (SEM) photograph of Graphene/molybdenum bisuphide compounded lubricant prepared by embodiment 1；
Fig. 2 is the scanning electron microscope (SEM) photograph of Graphene/molybdenum bisuphide compounded lubricant prepared by embodiment 2；
Fig. 3 is the scanning electron microscope (SEM) photograph of Graphene/molybdenum bisuphide compounded lubricant prepared by embodiment 3；
Fig. 4 is the scanning electron microscope (SEM) photograph of Graphene/molybdenum bisuphide compounded lubricant prepared by embodiment 4；
Fig. 5 is the XRD of Graphene/molybdenum bisuphide compounded lubricant prepared by embodiment 1-4；
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.It is unreceipted specific in embodiment
Condition person, the condition advised according to normal condition or manufacturer is carried out.Agents useful for same or the unreceipted production firm person of instrument, are
Can by city available from conventional products.
Embodiment 1
A kind of Graphene/molybdenum bisuphide compounded lubricant, is prepared by a method comprising the following steps and forms：
(1) preparation of graphene oxide solution
Added in the dry beakers of 1L the 5g phosphorus flake graphite (Sigma-Aldrich companies, similarly hereinafter) that has weighed and
3.75gNaNO3(Shanghai Chemical Reagent Co., Ltd., Sinopharm Group, similarly hereinafter), strength mechanical agitation 10min.Then, will
The dense H of 150mL98%2SO4(Shanghai Chemical Reagent Co., Ltd., Sinopharm Group, similarly hereinafter) is poured slowly into above-mentioned beaker, continues to stir
Mix 30min.It is slow added into 20gKMnO4(Shanghai Chemical Reagent Co., Ltd., Sinopharm Group, similarly hereinafter), 30min is added, stirring
After 20h, system is presented the aubergine for being mingled with a small amount of paillette (graphite).After placing 5d, 500mL water and 30mLH are sequentially added2O2(on
Extra large Chemical Reagent Co., Ltd., Sinopharm Group, similarly hereinafter), product spin dialysis is finally obtained into graphene oxide solution.
(2) preparation of Graphene/molybdenum bisuphide compounded lubricant
1) the graphene oxide solution 15mg of 1mg/mL in above-mentioned steps (1) is taken, and is dispersed in 80mL deionized waters
In, then wherein add 300mg sodium molybdates (Shanghai Jing Chun biochemical technologies limited company, similarly hereinafter), 800mg thiocarbamides (on
Hai Jingchun biochemical technologies limited company, similarly hereinafter) and 525mg cetyl trimethylammonium bromides (Shanghai Chinese medicines group chemistry
Reagent Co., Ltd, similarly hereinafter), stir at room temperature, obtain precursor solution；
2) by step 1) in the precursor solution that obtains be put into ptfe autoclave and reacted 24 hours at 240 DEG C；
3) by step 2) in the suspension that obtains, filtrate deionized water and absolute ethyl alcohol (Shanghai Chinese medicines group chemistry
Reagent Co., Ltd, similarly hereinafter) respectively cleaning 3 times, dry 12h in 60 DEG C of vacuum drying ovens of placement；
4) by step 3) in prepare product place quartz boat in be heat-treated under nitrogen protection, heat treatment temperature is
800 DEG C, heat treatment time is 2h, that is, obtain Graphene/molybdenum bisuphide compounded lubricant A.
Embodiment 2
Preparation method is substantially substantially the same manner as Example 1, and difference is the step 1) in solvent be ethylene glycol (on
Hai Lingfeng chemical reagent Co., Ltd, similarly hereinafter), surfactant is that (Aladdin reagent (Shanghai) is limited for polyvinylpyrrolidone
Company, similarly hereinafter), that is, obtain Graphene/molybdenum bisuphide compounded lubricant B.
Embodiment 3
A kind of Graphene/molybdenum bisuphide compounded lubricant, is prepared by a method comprising the following steps and forms：
(1) preparation of graphene oxide solution is with embodiment 1；
(2) preparation of Graphene/molybdenum bisuphide compounded lubricant
1) the graphene oxide solution 15mg of 1mg/mL in above-mentioned steps (1) is taken, and is dispersed in 80mL deionized waters
In, 250mg sodium molybdates, 800mg thiocarbamides and 450mg polyvinylpyrrolidones are then added wherein, stir at room temperature, obtain
To precursor solution；
2) by step 1) in the precursor solution that obtains be put into ptfe autoclave and reacted 24 hours at 240 DEG C；
3) by step 2) in the suspension that obtains, filtrate deionized water and absolute ethyl alcohol respectively cleaning 3 times, place 60 DEG C
12h is dried in vacuum drying oven；
4) by step 3) in prepare product place quartz boat in be heat-treated under nitrogen protection, heat treatment temperature is
800 DEG C, heat treatment time is 2h, that is, obtain Graphene/molybdenum bisuphide compounded lubricant C.
Embodiment 4
A kind of Graphene/molybdenum bisuphide compounded lubricant, is prepared by a method comprising the following steps and forms：
(1) preparation of graphene oxide solution is with embodiment 1；
(2) preparation of Graphene/molybdenum bisuphide compounded lubricant
1) the graphene oxide solution 30mg of 1mg/mL in above-mentioned steps (1) is taken, and is dispersed in 80mL deionized waters
In, 300mg sodium molybdates, 800mg thiocarbamides and 600mg cetyl trimethylammonium bromides are then added wherein, stir at room temperature
Uniformly, precursor solution is obtained；
2) by step 1) in the precursor solution that obtains be put into ptfe autoclave and reacted 24 hours at 240 DEG C；
3) by step 2) in the suspension that obtains, filtrate deionized water and absolute ethyl alcohol respectively cleaning 3 times, place 60 DEG C
12h is dried in vacuum drying oven；
4) by step 3) in prepare product place quartz boat in be heat-treated under nitrogen protection, heat treatment temperature is
800 DEG C, heat treatment time is 2h, that is, obtain Graphene/molybdenum bisuphide compounded lubricant D.
Comparative example 1
A kind of Graphene/molybdenum bisuphide compounded lubricant, is prepared by a method comprising the following steps and forms：
(1) preparation of graphene oxide solution is with embodiment 1；
(2) preparation of Graphene/molybdenum disulfide nano lubricant
1) the graphene oxide solution 15mg of 1mg/mL in above-mentioned steps (1) is taken, and is dispersed in 80mL deionized waters
In, 300mg sodium molybdates, 800mg thiocarbamides are then added wherein, stir at room temperature, obtain precursor solution；
2) by step 1) in the precursor solution that obtains be put into ptfe autoclave and reacted 24 hours at 240 DEG C；
3) by step 2) in the suspension that obtains, filtrate deionized water and absolute ethyl alcohol respectively cleaning 3 times, place 60 DEG C
12h is dried in vacuum drying oven；
4) by step 3) in prepare product place quartz boat in be heat-treated under nitrogen protection, heat treatment temperature is
800 DEG C, heat treatment time is 2h, that is, obtain Graphene/molybdenum bisuphide compounded lubricant E.
Comparative example 2
Preparation method is substantially substantially the same manner as Example 1, and difference is the step 2) in precursor solution is put
Enter in ptfe autoclave, reacted 24 hours at 100 DEG C, that is, obtain Graphene/molybdenum bisuphide compounded lubricant F.
At a temperature of 60 DEG C, Graphene/molybdenum bisuphide compounded lubricant A-F enters ore deposit according to weight than 1.5% addition
In thing oil 150N, 1h is continuously stirred, be cooled to room temperature, obtain composition I-VI.
Composition I-VI prepared by the present invention, after tested result verification be shown in Table 1.
Table 1
As shown in table 1, the molybdenum bisuphide/Graphene compounded lubricant for being prepared by embodiment 1-4 in four ball extreme pressure tests,
PB values and PD values are higher, and coefficient of friction is smaller, that is, show excellent wear-resistant anti-wear performance and anti-heavy load performance.However,
The composition V prepared by comparative example 1, relative to composition I-IV, its PB value and PD values reduce, coefficient of friction increase, this be because
Not have surfactant in water-heat process as soft template, nano flake is easily assembled, and specific surface area reduces, under adhesive force
Drop, and then increased the possibility of adhesive wear.The composition VI prepared by comparative example 2, because hydrothermal temperature is 100 DEG C, water
The gas pressure produced in hot kettle is smaller, and have impact on surfactant has to molybdenum bisuphide/Graphene compounded lubricant structure
Controlledly synthesis is imitated, and then the extreme boundary lubrication performance of composition has weakened.
Claims (5)
1. a kind of preparation method of Graphene/molybdenum bisuphide compounded lubricant, it is characterised in that the Graphene/molybdenum bisuphide
Compounded lubricant is nano-lamellar structure；
The preparation method of the Graphene/molybdenum bisuphide compounded lubricant is comprised the following steps：
1) at room temperature by graphene oxide solution, molybdenum source and surfactant according to mass ratio 1:(10-20):(20-35) is molten
Mix in agent, be subsequently adding sulphur source, stir, obtain precursor solution, the wherein mol ratio of sulphur source and molybdenum source is more than 2:1；
The step 1) described in sulphur source be thiocarbamide, vulcanized sodium, sodium thiosulfate or ammonium sulfide in one or more
Combination；The molybdenum source is one or two in two molybdic acid hydrate sodium or ammonium molybdate；
2) by step 1) in the precursor solution that obtains be put into 180 DEG C -240 DEG C in ptfe autoclave, preferably 210-
240℃；Reaction 12-36h, preferably 24-36h；
3) by step 2) suspension that obtains, filtrate deionized water and absolute ethyl alcohol respectively cleaning 3 times, place 60 DEG C of vacuum and dry
12h is dried in case；
4) by step 3) in prepare product place quartz boat in be heat-treated under inert gas shielding.
2. the preparation method of Graphene according to claim 1/molybdenum bisuphide compounded lubricant, it is characterised in that described
Step 1) in surfactant be polyvinylpyrrolidone, cetyl trimethylammonium bromide, neopelex, poly- second
In one or more combination in enol, preferably cetyl trimethylammonium bromide or polyvinylpyrrolidone one
Plant or two kinds.
3. the preparation method of Graphene according to claim 1/molybdenum bisuphide compounded lubricant, it is characterised in that described
Step 1) in solvent be one or two in deionized water or ethylene glycol.
4. the preparation method of Graphene according to claim 1/molybdenum bisuphide compounded lubricant, it is characterised in that described
Step 4) described in heat treatment temperature be 700-900 DEG C, preferably 800 DEG C；The heat treatment time is 1-3h, preferably 2h.
5. based on Graphene according to claim 1/molybdenum bisuphide compounded lubricant oil antiwear and friction-reducing additive
Application.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107541314A (en) * | 2017-09-08 | 2018-01-05 | 梅庆波 | A kind of preparation method of high temperature resistant type lithium base grease |
| CN108365175A (en) * | 2018-02-08 | 2018-08-03 | 成都理工大学 | A kind of mixed network structure of three-dimensional interconnection, Preparation method and use |
| CN108517239A (en) * | 2018-05-25 | 2018-09-11 | 北京航科航天科技有限公司 | A kind of preparation method of graphene-based nano molybdenum disulfide lube oil additive |
| CN109233177A (en) * | 2018-08-08 | 2019-01-18 | 燕山大学 | A kind of molybdenum disulfide/fluorinated graphene-ptfe composite and its preparation method and application |
| CN109704406A (en) * | 2019-02-22 | 2019-05-03 | 西安工业大学 | A kind of preparation method of nano molybdenum disulfide |
| CN109881299A (en) * | 2019-03-01 | 2019-06-14 | 杭州鹏图化纤有限公司 | A kind of Wear-proof non-woven fabric and preparation method thereof |
| 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 |
| CN112646275A (en) * | 2020-12-23 | 2021-04-13 | 苏州度辰新材料有限公司 | Conductive polyolefin master batch and preparation method thereof |
| CN113621418A (en) * | 2021-08-10 | 2021-11-09 | 四川欧力泰尔新材料有限公司 | Preparation method of water-soluble nano wheel belt high-temperature super-lubricant |
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| CN104962340A (en) * | 2015-07-17 | 2015-10-07 | 合肥工业大学 | Inorganic fullerene molybdenum disulfide/graphene composite lubricant and preparation method thereof |
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| CN104962340A (en) * | 2015-07-17 | 2015-10-07 | 合肥工业大学 | Inorganic fullerene molybdenum disulfide/graphene composite lubricant and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107541314A (en) * | 2017-09-08 | 2018-01-05 | 梅庆波 | A kind of preparation method of high temperature resistant type lithium base grease |
| CN108365175A (en) * | 2018-02-08 | 2018-08-03 | 成都理工大学 | A kind of mixed network structure of three-dimensional interconnection, Preparation method and use |
| CN108517239A (en) * | 2018-05-25 | 2018-09-11 | 北京航科航天科技有限公司 | A kind of preparation method of graphene-based nano molybdenum disulfide lube oil additive |
| CN109233177A (en) * | 2018-08-08 | 2019-01-18 | 燕山大学 | A kind of molybdenum disulfide/fluorinated graphene-ptfe composite and its preparation method and application |
| CN109704406A (en) * | 2019-02-22 | 2019-05-03 | 西安工业大学 | A kind of preparation method of nano molybdenum disulfide |
| CN109881299A (en) * | 2019-03-01 | 2019-06-14 | 杭州鹏图化纤有限公司 | A kind of Wear-proof non-woven fabric and preparation method thereof |
| 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 |
| CN110028997B (en) * | 2019-04-16 | 2021-06-01 | 中国科学院兰州化学物理研究所 | Preparation of graphite-like phase carbon nitride/molybdenum disulfide compound and application of graphite-like phase carbon nitride/molybdenum disulfide compound as solid lubricant |
| CN112646275A (en) * | 2020-12-23 | 2021-04-13 | 苏州度辰新材料有限公司 | Conductive polyolefin master batch and preparation method thereof |
| CN112646275B (en) * | 2020-12-23 | 2022-06-14 | 苏州度辰新材料有限公司 | Conductive polyolefin master batch and preparation method thereof |
| CN113621418A (en) * | 2021-08-10 | 2021-11-09 | 四川欧力泰尔新材料有限公司 | Preparation method of water-soluble nano wheel belt high-temperature super-lubricant |
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Application publication date: 20170609 |