CN117920547A - Construction method of two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film - Google Patents
Construction method of two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film Download PDFInfo
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- CN117920547A CN117920547A CN202410040859.9A CN202410040859A CN117920547A CN 117920547 A CN117920547 A CN 117920547A CN 202410040859 A CN202410040859 A CN 202410040859A CN 117920547 A CN117920547 A CN 117920547A
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- dimensional nano
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- copper
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 102
- 239000010949 copper Substances 0.000 title claims abstract description 102
- 239000002135 nanosheet Substances 0.000 title claims abstract description 87
- 239000002923 metal particle Substances 0.000 title claims abstract description 39
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 41
- 229920005570 flexible polymer Polymers 0.000 claims abstract description 31
- 238000005507 spraying Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 239000002086 nanomaterial Substances 0.000 claims abstract description 7
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 22
- 229910052582 BN Inorganic materials 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 229920001661 Chitosan Polymers 0.000 claims description 8
- 238000004544 sputter deposition Methods 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 238000010494 dissociation reaction Methods 0.000 claims description 6
- 230000005593 dissociations Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229920002873 Polyethylenimine Polymers 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 230000033444 hydroxylation Effects 0.000 claims description 2
- 238000005805 hydroxylation reaction Methods 0.000 claims description 2
- 238000011068 loading method Methods 0.000 claims description 2
- 239000002064 nanoplatelet Substances 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 17
- 229920000642 polymer Polymers 0.000 abstract description 11
- 238000005461 lubrication Methods 0.000 abstract description 8
- 238000009792 diffusion process Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 238000000151 deposition Methods 0.000 abstract description 4
- 238000011065 in-situ storage Methods 0.000 abstract description 4
- 238000001755 magnetron sputter deposition Methods 0.000 abstract description 4
- 238000013508 migration Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000010408 film Substances 0.000 description 42
- 239000013590 bulk material Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical class O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- 101100407037 Oryza sativa subsp. japonica PAO6 gene Proteins 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D105/00—Coating compositions based on polysaccharides or on their derivatives, not provided for in groups C09D101/00 or C09D103/00
- C09D105/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
- C09D179/02—Polyamines
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/18—Metallic material, boron or silicon on other inorganic substrates
- C23C14/185—Metallic material, boron or silicon on other inorganic substrates by cathodic sputtering
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/223—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating specially adapted for coating particles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- 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
- C10M2201/05—Metals; Alloys
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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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/061—Carbides; Hydrides; Nitrides
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- 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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/0403—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds used as base material
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- 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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/046—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers
- C10M2217/0465—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers used as base material
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/72—Extended drain
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- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/023—Multi-layer lubricant coatings
- C10N2050/025—Multi-layer lubricant coatings in the form of films or sheets
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- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/14—Composite materials or sliding materials in which lubricants are integrally molded
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Abstract
The invention provides a construction method of a two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film, which comprises the steps of dissociating a two-dimensional block material in situ through plasma, simultaneously depositing copper particles on the surface of the dissociated and thinned two-dimensional block material by utilizing a magnetron sputtering method to form copper particle-supported two-dimensional nano-sheets, combining flexible polymers on the surfaces of the copper particle-supported two-dimensional nano-sheets, and finally spraying the flexible polymers on the surfaces of a substrate as spraying materials to obtain the ultra-smooth film, wherein the ultra-smooth film is based on construction of copper metal/two-dimensional nano-material heterogeneous pairs at a friction interface, so that low adhesion is realized; meanwhile, friction force induces clusters aggregated by copper metal particles to form self-migration behavior, and the heterogeneous auxiliary pair is continuously provided for an interface through a polymer diffusion channel, so that a stable super-slip state is ensured, and the abrasion life is prolonged; overcomes the limitations of the traditional chemical treatment and lubrication coating, is easy to realize large-area industrialized preparation, and is expected to become one of the important means for prolonging the service life of moving parts.
Description
Technical Field
The invention belongs to the technical field of preparation of lubricating materials, and relates to a construction method of a two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film.
Background
Friction and wear between the contact surfaces of moving mechanical parts often cause significant energy waste, environmental pollution and health problems, and lubrication is a critical means to slow down or solve the deleterious effects. Of these, super lubrication, i.e., friction close to zero (friction coefficient lower than 0.01), is a focus of tribology because frictional wear of materials is negligible. One major challenge is the harsh conditions that are met to maintain the sustainability and robustness of super-lubrication over long sliding distances and high contact pressures, greatly limiting practical engineering applications.
To date, a great deal of experimental and theoretical research on superlubrication has focused mainly on a class of van der waals materials such as graphite, graphene, hexagonal boron nitride, and molybdenum disulfide. The lamellar structure of the material has lower interlayer shearing resistance, and friction is greatly reduced. However, this is a prerequisite for creating and maintaining structural ultra-slip due to the severe limitations of atomic layer smoothness and interlayer non-metric contact, making it difficult to scale up applications of such materials. Therefore, the material can be applied to engineering dimensions by other methods and becomes an urgent breakthrough point.
Disclosure of Invention
In view of the above, the present invention aims to provide a method for constructing a two-dimensional nanosheet supported copper metal particle-based ultra-smooth film, which comprises the steps of in-situ dissociating a two-dimensional bulk material by plasma, simultaneously depositing copper particles on the surface of the dissociated and thinned two-dimensional bulk material by a magnetron sputtering method to form copper particle-supported two-dimensional nanosheets, bonding a flexible polymer on the surface of the copper particle-supported two-dimensional nanosheets, and finally spraying the flexible polymer on the surface of a substrate as a spraying material to obtain the ultra-smooth film, wherein the ultra-smooth film is based on constructing a copper metal/two-dimensional nanomaterial heteropair at a friction interface to realize low adhesion; meanwhile, friction force induces clusters aggregated by copper metal particles to form self-migration behavior, and the heterogeneous auxiliary pair is continuously provided for an interface through a polymer diffusion channel, so that a stable super-slip state is ensured, and the abrasion life is prolonged; overcomes the limitations of the traditional chemical treatment and lubrication coating, is easy to realize large-area industrialized preparation, and is expected to become one of the important means for prolonging the service life of moving parts.
In order to achieve the above purpose, the following technical scheme is adopted:
A construction method of a two-dimensional nanosheet supported copper metal particle-based ultra-smooth film comprises the following steps:
Step S1: plasma bombardment dissociation thinning two-dimensional nano-sheet
Loading the two-dimensional nano-sheets into a reactor, and vacuumizing; plasma bombardment is carried out by adopting a pulse ion source to promote the dissociation and thinning of the two-dimensional nano sheet;
Step S2: preparation of copper particle-loaded two-dimensional nanosheets from sputtered copper targets
Introducing an air source into the reactor of the two-dimensional nano sheet obtained in the step S1 after dissociation and thinning to sputter a copper target to prepare the two-dimensional nano sheet loaded with copper particles;
Step S3: copper particle loaded two-dimensional nanoplatelets combined with flexible polymers
Uniformly mixing a flexible polymer with deionized water to obtain a flexible polymer suspension; slowly adding the copper particle-loaded two-dimensional nano-sheet obtained in the step S3 into flexible polymer suspension, and combining the flexible polymer to the surface of the copper particle-loaded two-dimensional nano-sheet to obtain spraying liquid;
step S4: spray coating method for constructing two-dimensional nanosheet supported copper metal particle-based ultra-smooth film
And (3) after the substrate is pretreated, constructing a two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film on the surface of the pretreated substrate by adopting the spraying liquid obtained in the step (S3) through a spraying method.
Further, in the step S1, the two-dimensional nano-sheet includes one or more of graphene, hexagonal boron nitride, and MXene; the plasma in the step S1 is hydrogen plasma; the flexible polymer in the step S3 comprises one or more of chitosan and polyethyleneimine.
Further, a tray is arranged in the reactor, the two-dimensional nano-sheets are placed on the tray, and in the step S1 and the step S2, the tray always keeps relative motion with the reactor, and the two-dimensional nano-sheets are uniformly thinned and uniformly loaded with copper particles; the two-dimensional nanomaterial volume is no more than 20% of the reactor volume.
Further, the condition of the hydrogen plasma bombardment is that the pulse bias voltage is 150V-500V, the duty ratio is 60% -80%, and the bombardment time is 30min-90min.
Further, the gas source in the step S2 is argon, the specific condition of preparing the copper particle-loaded two-dimensional nano sheet by sputtering the copper target is that the pulse bias voltage is 300V-800V, the target current is 1.0A-3.5A, and the sputtering time is 15min-90min.
Further, the specific method for bonding the flexible polymer to the surface of the copper particle-loaded two-dimensional nano-sheet in the step S3 is as follows: slowly adding the copper particle-loaded two-dimensional nano-sheet into the flexible polymer suspension, and then ultrasonically promoting the flexible polymer chains to be adsorbed on the surface of the copper particle-loaded two-dimensional nano-sheet; the mass ratio of the copper particle-loaded two-dimensional nano sheet to the flexible polymer is 2-4:3-5.
Further, in the step S4:
The substrate is subjected to hydroxylation by soaking treatment of hydrogen peroxide and sulfuric acid; after drying, adopting a spraying method to construct an ultra-smooth film; wherein the spraying temperature is 50-80 ℃, the pressure of the spray gun is 2-5MPa, and the angle between the spray gun and the substrate is vertical; the concentration of the spraying liquid is 0.3-0.8mg/mL, and the spraying liquid is dried for 1-3 days at room temperature.
Furthermore, the thickness of the two-dimensional nano sheet supported copper metal particle-based ultra-smooth film is 1-3 mu m.
The two-dimensional nano sheet supported copper metal particle based ultra-smooth film is constructed by any one of the construction methods.
An application method of a two-dimensional nanosheet supported copper metal particle-based ultra-smooth film is provided, wherein the ultra-smooth film is used for realizing an ultra-smooth state of the surface of a relative moving part; the environment for realizing the ultra-slip characteristic of the ultra-slip film comprises the following steps: atmospheric with humidity less than 40%, glycerol and PAO oil; the pair object for realizing the ultra-slip characteristic of the ultra-slip film comprises: stainless steel, various ceramic balls, aluminum oxide balls.
The beneficial effects are that:
The beneficial effects of the invention are as follows:
The invention provides a construction method of a two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film, which comprises the steps of dissociating a two-dimensional block material in situ through plasma, simultaneously depositing copper particles on the surface of the dissociated and thinned two-dimensional block material by utilizing a magnetron sputtering method to form copper particle-supported two-dimensional nano-sheets, combining flexible polymers on the surfaces of the copper particle-supported two-dimensional nano-sheets, and finally spraying the flexible polymers on the surfaces of a substrate as spraying materials to obtain the ultra-smooth film, wherein the ultra-smooth film is based on construction of copper metal/two-dimensional nano-material heterogeneous pairs at a friction interface, so that low adhesion is realized; meanwhile, friction force induces clusters aggregated by copper metal particles to form self-migration behavior, and the heterogeneous auxiliary pair is continuously provided for an interface through a polymer diffusion channel, so that a stable super-slip state is ensured, and the abrasion life is prolonged; the key point is that after friction is carried out for a period of time, the friction interface complex substance is removed, the friction film is started again, the ultra-slip state and low abrasion can be realized in a short time, and copper particles can be in insufficient supplementing quantity along the diffusion channel; the technology solves the problem that the engineering scale is difficult to realize stable and ultra-smooth; overcomes the limitations of the traditional chemical treatment and lubrication coating, is easy to realize large-area industrialized preparation, and is expected to become one of the important means for prolonging the service life of moving parts.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a preparation technique of copper particles loaded on the surface of a two-dimensional nano-sheet according to an embodiment of the invention;
FIG. 2 is an XRD spectrum of two-dimensional boron nitride nanosheets loaded with copper particles according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating the sliding of two-dimensional boron nitride nanosheets loaded copper particles/chitosan matrix Bao Mochao according to an example of the present invention;
FIG. 4 is a schematic diagram of a friction mechanism of a thin film according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1:
the construction method of the two-dimensional nano sheet supported copper metal particle-based ultra-smooth film comprises the following steps:
(1) Preparation of two-dimensional nanosheet loaded copper metal particles
As shown in fig. 1, a bulk hexagonal boron nitride powder (about 200 mL) was charged into a 1L shaking pot, and the tray rotation speed thereof was set to 50rpm; the mechanical pump is started to pump the vacuum to 50Pa, then the Roots pump is started to pump the vacuum to 2Pa, and finally the molecular pump is started to pump the vacuum to 3X 10 -3 Pa;
Introducing 200sccm of hydrogen into the vacuum cavity, and adopting a pulse ion source to perform plasma bombardment to promote thinning of the hexagonal boron nitride block; the condition of hydrogen plasma bombardment is pulse bias voltage of 500V, duty ratio of 60% and bombardment time of 40min.
Introducing 100sccm argon after the hydrogen plasma treatment is finished, and preparing hexagonal boron nitride nanosheet loaded copper particles by sputtering a copper target; wherein, the pulse bias voltage is 500V, the target current is 1.0A-3.5A, the sputtering time is 15min, and the XRD of the prepared hexagonal boron nitride nanosheet loaded copper particles is shown in figure 2.
The tray and the vibration tank are in a motion state in the whole period, so that the block hexagonal boron nitride is thinned and the copper particle load is homogenized.
(2) Electrostatic adsorption bonding of polymers to composites
Stirring and mixing 15mg of chitosan and 30mL of deionized water for 20 minutes to obtain a polymer suspension; sequentially slowly adding 10mg hexagonal boron nitride nanosheets loaded with copper particles into the polymer suspension, and carrying out ultrasonic treatment for 1 hour at 300W to promote the adsorption of polymer chains onto the surface of the composite body so as to obtain the spraying liquid.
(3) Construction of ultra-smooth film
Stainless steel sheet with the thickness of 1mm and the thickness of 2cm multiplied by 2cm is subjected to soaking treatment by hydrogen peroxide and sulfuric acid to be hydroxylated; after drying, adopting a spraying method to construct an ultra-smooth film; wherein the spraying temperature is 50 ℃, the pressure of the spray gun is 2MPa, and the spray gun is vertical to the substrate; 30mL of the spray liquid diluent is adopted, the concentration of the spray liquid diluent is 0.5mg/mL, and the spray liquid diluent is dried for 1 day at room temperature. The thickness of the film was 2.0. Mu.m.
Example 2:
The construction method of the two-dimensional nano sheet supported copper metal particle-based ultra-smooth film is basically the same as that of the example 1, and the difference is that:
In the step (1), the bulk hexagonal boron nitride powder is replaced by a graphite flake of a bulk, and the condition of hydrogen plasma bombardment is pulse bias voltage 300V;
In step (2), chitosan is replaced with polyethylenimine (m.w.1200).
Example 3:
The construction method of the two-dimensional nano sheet supported copper metal particle-based ultra-smooth film is basically the same as that of the example 1, and the difference is that:
In the step (3), 50mL of the above spray solution was used, and the thickness of the film was 3.0. Mu.m.
Example 4:
The construction method of the two-dimensional nano sheet supported copper metal particle-based ultra-smooth film is basically the same as that of the example 1, and the difference is that:
In step (1), the bulk hexagonal boron nitride powder is replaced with bulk MXene;
In the step (3), the concentration of the spray solution was 0.8mg/mL, and the thickness of the film was 3.0. Mu.m.
Friction performance and life test of ultra-smooth films prepared in experimental examples 1-4:
The friction performance and friction mechanism of the two-dimensional nano-sheet supported copper metal particle-based ultra-smooth films prepared in this example 1-4 were verified as shown in fig. 3 and 4. Experimental environment: dripping PAO6 oil; the friction condition adopts a ball-disc rotation mode, the rotation radius is 4mm, the normal load is 12.0N, and the friction pair is aluminum oxide balls with phi 6 mm.
The test results were as follows:
the films prepared in examples 1 and 3, as shown in FIG. 3, all had a coefficient of friction of 0.005, and exhibited excellent tribological properties in the ultra-slip state; the friction coefficient can be kept low after repeated start-stop after 24 hours of friction under the condition, which shows that the film has excellent wear resistance.
The films prepared in examples 2 and 4 demonstrate that superlubrication can be achieved by replacing both the two-dimensional material and the polymer type, and that the change in spray solution concentration has less effect on tribological properties.
Comparative example 1:
The construction method of the two-dimensional nano sheet supported copper metal particle-based ultra-smooth film is basically the same as that of the example 1, and the difference is that:
Bulk hexagonal boron nitride is directly used for sputtering a copper target to prepare hexagonal boron nitride nanosheet loaded copper particles without adopting hydrogen plasma to thin bulk two-dimensional material bulk hexagonal boron nitride, and other steps are the same as in example 1.
The specific surface area data of the film obtained by the mode is greatly reduced, the lubricating phase cannot be effectively stored at a friction interface, and the friction coefficient is increased to about 0.2, namely the intrinsic friction coefficient of the polymer matrix;
Comparative example 2:
The construction method of the two-dimensional nano sheet supported copper metal particle-based ultra-smooth film is basically the same as that of the example 1, and the difference is that:
after the hydrogen plasma is used for thinning the bulk hexagonal boron nitride of the bulk two-dimensional material, the bulk hexagonal boron nitride is directly used for combining the flexible polymer chitosan, namely, the step of preparing the hexagonal boron nitride nanosheet loaded copper particles by sputtering a copper target is reduced, and other steps are the same as those in the embodiment 1.
The film obtained by the method does not adopt copper particle load, and is difficult to construct a copper metal/two-dimensional nanomaterial heterogeneous pair at a friction interface, so that low adhesion is realized, and the friction coefficient is also greatly increased to about 0.3.
Comparative example 3:
The construction method of the two-dimensional nano sheet supported copper metal particle-based ultra-smooth film is basically the same as that of the example 1, and the difference is that:
After preparing the hexagonal boron nitride nanosheets loaded with copper particles, the combination of the hexagonal boron nitride nanosheets loaded with copper particles and the flexible polymer chitosan is absent, namely, the step of combining the flexible polymer chitosan and the hexagonal boron nitride nanosheets loaded with copper particles is reduced, and other steps are the same as those in example 1.
The film obtained by the method does not adopt a polymer combination mode, the two-dimensional nano sheet loaded copper particles are difficult to effectively store in an interface, and a diffusion channel does not exist, so that the lubrication phase is facilitated to be supplemented to a friction area, and the friction coefficient is greatly increased to about 0.5.
In summary, the invention provides a method for constructing a copper metal particle-based ultra-smooth film supported by two-dimensional nano-sheets, which comprises the steps of dissociating a two-dimensional bulk material in situ by plasma, and simultaneously depositing copper particles on the surface of the dissociated and thinned two-dimensional bulk material by utilizing a magnetron sputtering method to form copper particle-supported two-dimensional nano-sheets, combining flexible polymers on the surfaces of the copper particle-supported two-dimensional nano-sheets, and finally spraying the flexible polymers on the surfaces of a substrate as spraying materials to obtain the ultra-smooth film, wherein the ultra-smooth film is based on constructing copper metal/two-dimensional nano-material heterogeneous pairs at a friction interface, so that low adhesion is realized; meanwhile, friction force induces clusters aggregated by copper metal particles to form self-migration behavior, and the heterogeneous auxiliary pair is continuously provided for an interface through a polymer diffusion channel, so that a stable super-slip state is ensured, and the abrasion life is prolonged; overcomes the limitations of the traditional chemical treatment and lubrication coating, is easy to realize large-area industrialized preparation, and is expected to become one of the important means for prolonging the service life of moving parts.
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any person skilled in the art can make some changes or modifications to the equivalent embodiments without departing from the scope of the technical solution of the present invention, but any simple modification, equivalent changes and modifications to the above-mentioned embodiments according to the technical substance of the present invention are still within the scope of the technical solution of the present invention.
Claims (10)
1. The construction method of the two-dimensional nanosheet supported copper metal particle-based ultra-smooth film is characterized by comprising the following steps of:
Step S1: plasma bombardment dissociation thinning two-dimensional nano-sheet
Loading the two-dimensional nano-sheets into a reactor, and vacuumizing; plasma bombardment is carried out by adopting a pulse ion source to promote the dissociation and thinning of the two-dimensional nano sheet;
Step S2: preparation of copper particle-loaded two-dimensional nanosheets from sputtered copper targets
Introducing an air source into the reactor of the two-dimensional nano sheet obtained in the step S1 after dissociation and thinning to sputter a copper target to prepare the two-dimensional nano sheet loaded with copper particles;
Step S3: copper particle loaded two-dimensional nanoplatelets combined with flexible polymers
Uniformly mixing a flexible polymer with deionized water to obtain a flexible polymer suspension; slowly adding the copper particle-loaded two-dimensional nano-sheet obtained in the step S3 into flexible polymer suspension, and combining the flexible polymer to the surface of the copper particle-loaded two-dimensional nano-sheet to obtain spraying liquid;
step S4: spray coating method for constructing two-dimensional nanosheet supported copper metal particle-based ultra-smooth film
And (3) after the substrate is pretreated, constructing a two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film on the surface of the pretreated substrate by adopting the spraying liquid obtained in the step (S3) through a spraying method.
2. The method for constructing a two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film according to claim 1, wherein the two-dimensional nano-sheet in the step S1 comprises one or more of graphene, hexagonal boron nitride and MXene; the plasma in the step S1 is hydrogen plasma; the flexible polymer in the step S3 comprises one or more of chitosan and polyethyleneimine.
3. The method for constructing the ultra-smooth film based on the copper metal particles loaded on the two-dimensional nano-sheets, as set forth in claim 1, wherein a tray is provided in the reactor, the two-dimensional nano-sheets are placed on the tray, and in step S1 and step S2, the tray always keeps relative movement with the reactor, and the two-dimensional nano-sheets are uniformly thinned and uniformly loaded with copper particles; the two-dimensional nanomaterial volume is no more than 20% of the reactor volume.
4. The method for constructing the ultra-smooth film based on the copper metal particles loaded on the two-dimensional nano-sheet as claimed in claim 2, wherein the condition of the hydrogen plasma bombardment is pulse bias voltage of 150V-500V, duty ratio of 60% -80% and bombardment time of 30min-90min.
5. The method for constructing a two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film according to claim 1, wherein the gas source in the step S2 is argon, the specific condition for preparing the two-dimensional nano-sheet supported copper particles by sputtering a copper target is that the pulse bias voltage is 300V-800V, the target current is 1.0A-3.5A, and the sputtering time is 15min-90min.
6. The method for constructing a two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film according to claim 1, wherein the specific method for bonding the flexible polymer to the surface of the two-dimensional nano-sheet supported copper particles in the step S3 is as follows: slowly adding the copper particle-loaded two-dimensional nano-sheet into the flexible polymer suspension, and then ultrasonically promoting the flexible polymer chains to be adsorbed on the surface of the copper particle-loaded two-dimensional nano-sheet; the mass ratio of the copper particle-loaded two-dimensional nano sheet to the flexible polymer is 2-4:3-5.
7. The method for constructing a two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film according to claim 1, wherein in the step S4:
The substrate is subjected to hydroxylation by soaking treatment of hydrogen peroxide and sulfuric acid; after drying, adopting a spraying method to construct an ultra-smooth film; wherein the spraying temperature is 50-80 ℃, the pressure of the spray gun is 2-5MPa, and the angle between the spray gun and the substrate is vertical; the concentration of the spraying liquid is 0.3-0.8mg/mL, and the spraying liquid is dried for 1-3 days at room temperature.
8. The method for constructing the two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film according to claim 1, wherein the thickness of the two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film is 1-3 μm.
9. The two-dimensional nano sheet supported copper metal particle-based ultra-smooth film is characterized by being constructed by adopting the construction method of any one of claims 1-8.
10. The method for applying a two-dimensional nano-sheet supported copper metal particle-based ultra-smooth film as claimed in claim 9, wherein the ultra-smooth film is used for realizing the ultra-smooth state of the surface of a relatively moving part; the environment for realizing the ultra-slip characteristic of the ultra-slip film comprises the following steps: atmospheric with humidity less than 40%, glycerol and PAO oil; the pair object for realizing the ultra-slip characteristic of the ultra-slip film comprises: stainless steel, various ceramic balls, aluminum oxide balls.
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