CN110126378A - Graphene steel composite material and preparation method and application - Google Patents
Graphene steel composite material and preparation method and application Download PDFInfo
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- CN110126378A CN110126378A CN201910231033.XA CN201910231033A CN110126378A CN 110126378 A CN110126378 A CN 110126378A CN 201910231033 A CN201910231033 A CN 201910231033A CN 110126378 A CN110126378 A CN 110126378A
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C1/00—Skates
- A63C1/42—Manufacture of skates
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C3/00—Accessories for skates
- A63C3/04—Supporting frames or gliders for skaters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1858—Handling of layers or the laminate using vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/42—Alternating layers, e.g. ABAB(C), AABBAABB(C)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/536—Hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/546—Flexural strength; Flexion stiffness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
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- Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a kind of graphene steel composite materials, including the steel layer and graphene layer being alternately superposed, the top layer in the direction of the superposition of the graphene steel composite material and lowest level are the steel layer, and the steel layer of adjacent two passes through a graphene layer interval.The invention also discloses a kind of preparation methods of graphene steel composite material, comprising: provides multiple steel plates；Graphene dispersing solution is provided, including graphene film dispersing agent and the graphene film being dispersed in the dispersion liquid；The steel plate and the graphene dispersing solution are alternately superimposed, are sandwiched in the graphene dispersing solution between two adjacent steel plates, forms interlayer structure, the top layer of the interlayer structure and lowest level are the steel plate；Pretreatment with Pressurized is carried out to the interlayer structure；And the interlayer structure after the Pretreatment with Pressurized is sintered at 900 DEG C~1100 DEG C.The invention also discloses a kind of applications of graphene steel composite material.
Description
Technical field
The present invention relates to special tool(s) fields, more particularly to a kind of graphene steel composite material and preparation method thereof and answer
With.
Background technique
Skating is just increasingly liked that skates are the most important equipments of skating by people, entire skates dress
Standby precision, performance, weight and reliability plays huge effect to skating.Speed-skating ice skate shoes are generally by skates blade, knife pipe
It is directly contacted with ice face with three parts composition, skates blades such as skating boots, knife Guan Ze is connected to blade and skating boots, and knife pipe plays support
The effect of skates blade influences entire ice skates quality and performance huge.
However, existing skates bracket generallys use carbon steel and stainless steel material is prepared, precise structure degree is not high, tough
Property, the disadvantages of mechanical performances such as hardness, flexing resistance are poor, thus lead to its service life long and performance be not bad.
Summary of the invention
Based on this, it is necessary to provide a kind of graphene steel composite material and preparation method and application of high-mechanical property.
A kind of graphene steel composite material, including the steel layer and graphene layer being alternately superposed, the graphene steel
The top layer in the direction of the superposition of composite material and lowest level are the steel layer, and the steel layer of adjacent two passes through
One graphene layer interval.
In one of the embodiments, the graphene layer with a thickness of 0.05 μm~100 μm.
In one of the embodiments, the steel layer with a thickness of 0.1mm~1mm.
The graphene film part in the graphene layer is penetrated into the steel layer in one of the embodiments,.
A kind of preparation method of graphene steel composite material, comprising:
Multiple steel plates are provided；
Graphene dispersing solution is provided, including graphene film dispersing agent and the graphene film being dispersed in the dispersion liquid；
The steel plate and the graphene dispersing solution are alternately superimposed, the graphene dispersing solution is made to be sandwiched in adjacent two
Between the steel plate, interlayer structure is formed, the top layer of the interlayer structure and lowest level are the steel plate；
Pretreatment with Pressurized is carried out to the interlayer structure；And
The interlayer structure after the Pretreatment with Pressurized is sintered at 900 DEG C~1100 DEG C.
The temperature of the Pretreatment with Pressurized is 150 DEG C~300 DEG C in one of the embodiments,.
The pressure of the Pretreatment with Pressurized is 50T~100T in one of the embodiments,.
The sintering is less than or equal to 1.0 × 10 in vacuum degree in one of the embodiments,-2It is carried out under Pa.
The step of the multiple steel plate of the offer includes: in one of the embodiments,
Machinery is carried out to the multiple steel plate to polish；And
The multiple steel plate after polishing to the machinery carries out electrobrightening.
The polish temperature of the electrobrightening is 60 DEG C~80 DEG C in one of the embodiments, current density 50A
dm-2~100Adm-2, electrolysis time 5min~8min.
It is 550ml/L~750ml/L that the electrolyte component of the electrobrightening, which includes concentration, in one of the embodiments,
Phosphoric acid, the sulfuric acid of 100ml/L~200ml/L, the chromium trioxide of 30g/L~70g/L and water.
In one of the embodiments, further include: before the step of machinery polishes, the multiple steel plate is carried out
Stress relief annealing, the temperature of the annealing are 450 DEG C~800 DEG C.
The graphene dispersing solution further includes auxiliary agent in one of the embodiments, and the auxiliary agent includes detergent alkylate
One of sodium sulfonate and polyvinylpyrrolidone are a variety of.
The graphene steel composite material that a kind of graphene steel composite material or the preparation method obtain
Using the graphene steel composite material is for manufacturing skates bracket.
Graphene steel composite material of the invention includes graphene layer, due to the unique bi-dimensional cellular shape of the graphene
Structure, so that can to enhance the graphene steel after being superposed between two adjacent steel layers compound for the graphene layer
Material makes composite sheet have superelevation bending strength, hardness and impact flexibility along the mechanical strength of the Direction of superposition, solves existing
The problem of bad mechanical property of some stainless steels or carbon steel.Also, graphene layer is arranged between two adjacent steel layers, more
Graphene easy to accomplish being uniformly distributed on steel layer length direction, mixes relative to by graphene with steel matrix, reduces
The dispersion difficulty of graphene.Graphene steel composite material can be used for preparing skates bracket, and skates bracket is used to connect and shoe rack,
The supporting role to skates and ice skates is played, by improving the mechanical performance of skates bracket, makes ice skates that there is higher fortune
Dynamic performance and used life, facilitates the raising of skater's achievement.
In the preparation of graphene steel composite material of the invention, by by the graphene dispersing solution being superposed and steel into
Row pressurization and sintering, combine graphene layer and steel layer, are guaranteeing the same of the graphene layer and being firmly combined property of steel layer
When, so that graphene layer is able to maintain the high-mechanical property of itself.
Detailed description of the invention
Fig. 1 is the transmission electron microscope photo of the graphene steel composite material of one embodiment of the invention, wherein left side is
Steel, right side are graphene, and centre is graphene steel recombination region.
Fig. 2 is the structural schematic diagram of the skates bracket of one embodiment of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, by the following examples, it and combines attached
Figure, is further elaborated graphene steel composite material and preparation method and application of the invention.It should be appreciated that this
Place is described, and specific examples are only used to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention provides a kind of graphene steel composite material, the graphene steel composite material referring to FIG. 1-2,
Including alternately the steel layer and graphene layer that are superposed, the direction of the superposition of the graphene steel composite material it is most upper
Layer and lowest level are the steel layer, and the steel layer of adjacent two passes through a graphene layer interval.
The graphene steel composite material of the embodiment of the present invention includes graphene layer, due to the unique two dimension of the graphene
Honeycomb structure, so that the graphene layer can enhance the graphene after being superposed between two adjacent steel layers
Steel composite material makes composite sheet have superelevation bending strength, hardness and impact flexibility, solution along the mechanical strength of the Direction of superposition
Determined existing stainless steel or carbon steel bad mechanical property the problem of.Also, two adjacent steel layers are arranged in graphene layer
Between, it is easier to realize graphene being uniformly distributed on graphene steel composite material length direction, relative to by graphene with
The mixing of steel matrix, reduces the dispersion difficulty of graphene.The graphene steel composite material of the embodiment of the present invention can be used for preparing
Skates bracket 20, skates bracket 20 play the supporting role to skates 40 and ice skates, pass through for connecting skates 40 and shoe rack
The mechanical performance for improving skates bracket 20 makes ice skates have higher movenent performance and service life, facilitates skating
The raising of member's achievement.
The top layer of the graphene steel composite material and lowest level are the steel layer, and graphene layer setting is existed
Between the steel layer of adjacent two layers, so that the graphene layer be avoided to fall off due to long-time friction, corrosion etc., improve
The service life of the graphene steel composite material.The number of plies of the graphene layer and the steel layer can be according to the graphite
The thickness requirement of the practical application of alkene steel composite material is adjusted.In one embodiment, the graphene steel composite material can
To include the first steel layer, graphene layer and the second steel layer for being sequentially overlapped setting.
In one embodiment, the graphene is one of original graphene and graphene oxide or a variety of, described
Original graphene, that is, not oxidized or linkage function group graphene, original graphene carbon atomic structure are not destroyed, machine
Tool performance is stronger.The graphene oxide is easier to disperse.The number of plies of graphene can be 1~8 layer, it is preferred that the graphene
The number of plies be 1~3 layer, the number of plies of the graphene is fewer, and mechanical performance is stronger.In one embodiment, the powder of the graphene
Body piece diameter can be 5 μm~50 μm.
In one embodiment, the thickness of the graphene layer can be 0.05 μm~100 μm.The thickness of the steel layer can
Think 0.1mm~1mm.The graphene layer is in the thickness range, so that the graphene layer can on the Direction of superposition
With part in conjunction with the steel layer, and the graphene layer there remains intermediate position and not combine, so as to keep graphite
The property of alkene itself.The steel layer enables to the graphene steel composite material to have on thickness in the thickness range
Enough sizes, and antisepsis can be played, avoid the graphene layer destruction by external environment as time went on.
In one embodiment, the graphene film part in the graphene layer is penetrated into the steel layer, so that stone
Black alkene piece improves the mechanical strength on the steel layer and the graphene layer Direction of superposition in conjunction with steel layer.Implement one
In example, the graphene layer can be such that the graphene film part penetrates into the steel layer by sintering.Pass through the side of sintering
The contact site of formula, graphene layer and steel layer bonds, and makes the graphene film and steel layer of the graphene layer of independent separate
Material forms agglomerate, increases the bond strength of contact site.By way of sintering, the graphene layer and the steel
Layer is not bonded not in contact with position, it is ensured that and the property at the intermediate position of the graphene layer does not change, thus
Guarantee that the graphene steel composite material has better mechanical performance.
The steel can be using iron as basic element, and including non-graphite carbon and other alloying elements.It is described
Other alloying elements can include but is not limited to one of Cr, Mn, Mo, Si, Cu, Ni, P, S, W, V, Ti and P or a variety of.Respectively
The type and content of element can be adaptively adjusted according to the requirement of mechanical strength.In one embodiment, the steel
The content of non-graphite carbon can be 0.2%~0.8%, can be used as the materials'use of the skates bracket 20.It is different
The component of the steel plate of layer can be identical or different.
Referring to Fig. 2, in one embodiment, the graphene steel composite material can be used as the material of skates bracket 20.
It the direction of the superposition of the graphene steel composite material can be substantially vertical with the length direction of the skates bracket 20.Institute
State skates bracket 20 shaft section can for tubulose, the skates bracket 20 it is vertical with 20 length direction of skates bracket
The section in direction may include the circular layer of multiple coaxial arrangements, and the circular layer can have notch, and the two sides of skates 40 can
To be clamped between the notch of the skates bracket 20.
The embodiment of the present invention also provides a kind of preparation method of graphene steel composite material, comprising:
S10 provides multiple steel plates；
S20 provides graphene dispersing solution, including graphene film dispersing agent and the graphene being dispersed in the dispersion liquid
Piece；
The steel plate and the graphene dispersing solution are alternately superimposed, are sandwiched in the graphene dispersing solution adjacent by S30
Between two steel plates, interlayer structure is formed, the top layer of the interlayer structure and lowest level are the steel plate；
S40 carries out Pretreatment with Pressurized to the interlayer structure；And
S50 is sintered the interlayer structure after the Pretreatment with Pressurized at 900 DEG C~1100 DEG C
In the preparation of the graphene steel composite material of the invention of the embodiment of the present invention, pass through the graphene that will be superposed
Dispersion liquid and steel are pressurizeed and are sintered, and graphene layer and steel layer are combined, and are guaranteeing the graphene layer and steel layer
While being firmly combined property, graphene layer is made to be able to maintain the high-mechanical property of itself.
In step slo, the multiple steel plate can make institute by pre-treatment step to pass through pretreated steel plate
It states multiple steel plates and keeps better form and intensity, be conducive to and the combination of graphene film.The pretreated step can wrap
It includes and stress relief annealing, machinery are carried out to the multiple steel plate one of polishes and polish or a variety of.
In one embodiment, the step S10 may include: and carry out machinery to the multiple steel plate to polish.The machinery
Polishing can be realized by mechanical grinding machine.It is polished by machinery, obtains the steel plate of predetermined thickness, while making the table of the steel plate
Face is smooth, reduces the roughness of the surface of steel plate, for and the combination of graphene film good combination interface is provided, be conducive to drop
The low steel plate and the superimposed gap of graphene film.In one embodiment, the thickness after the steel plate is polished by the machinery
Degree can be 0.3mm~0.5mm, and roughness can be Ra0.8 μm or less.
Preferably, the step S10 can also include: that the multiple steel plate after polishing to the machinery polishes.
The polishing, which refers to, processes the modification that the surface of steel plate carries out using polishing tool, abrasive grain or other polishing mediums,
Make the surface-brightening, smooth of the steel plate.The polishing method may include in mechanical polishing, chemical polishing and electrochemical polish
At least one.Preferably, the polishing method can be electrochemical polish, be specifically as follows electrobrightening.Electrobrightening
Efficiency is higher than machining efficiency, and the surface of steel plate generates the oxidation film of compact and firm after polishing, will not generate and add
Work metamorphic layer, also without residual stress.The step of electrobrightening is that the multiple steel plate is carried out anode in the electrolytic solution
Processing, makes the surfacing of the steel plate.Preferably, the step S10 can also include: with deionized water to the polishing after
The multiple steel plate cleaned, to remove the electrolyte of the multiple surface of steel plate.
The combination of graphene film and steel plate is more demanding for the surface smoothness of steel plate, if the surface of the steel plate is flat
Whole degree does not reach requirement, and it is insecure in conjunction with steel plate that it will cause graphene films, and will cause graphene film in conjunction with steel plate
Larger change occurs for the pattern of graphene film afterwards.Temperature, electric current and the electrolysis time of electrobrightening imitate the polishing of steel plate
The mechanical performance of fruit and steel plate has an important influence.In one embodiment, the polish temperature of the electrobrightening can be 60 DEG C
~80 DEG C, current density can be 50Adm-2~100Adm-2, electrolysis time can be with 5min~8min.Pass through the polishing
Temperature, current density and electrolysis time cooperate, and reach better polishing effect, keep the flatness of the steel plate higher, together
Shi Buhui destroys the mechanical performance of described steel plate itself.In one embodiment, the electrolyte component of the electrobrightening can wrap
Include concentration be the phosphoric acid of 550ml/L~750ml/, the sulfuric acid of 100ml/L~200ml/L, 30g/L~70g/L chromium trioxide and
Water.
Since, there are stress, stress can lead to the rupture, deformation or change in size of steel inside original steel, stress is also mentioned
High metal chemical activity is particularly easy to that intercrystalline corrosion is caused to rupture under stress, destroys the pattern and structure of steel.One
In embodiment, the step S10 can also include: to go before the step of machinery polishes to the multiple steel plate
Stress annealing.By annealing, the multiple steel plate is made to carry out local remodeling, so that stress relaxation be made even to remove stress.It is described
The temperature of annealing can be 450 DEG C~800 DEG C.The stress of the steel plate can be removed under the annealing temperature and avoids institute
The institutional framework for stating steel plate is destroyed.
In step S20, the dispersing agent may include selected from least one of water and volatile organic solvent.It can
The dispersing agent in the graphene dispersing solution is removed by simple heating evaporation.Optionally, described volatile organic
Solvent may include one of ethyl alcohol, methanol, isopropanol, N,N-dimethylformamide and n-methyl-2-pyrrolidone or more
Kind.In one embodiment, the graphene dispersing solution further includes auxiliary agent, the auxiliary agent may include neopelex and
One of polyvinylpyrrolidone is a variety of.The neopelex and the polyvinylpyrrolidone are as surface
It is evenly dispersed in the dispersing agent and will not destroy the property of the graphene film to facilitate the graphene film for activating agent
Matter.The content of the auxiliary agent can be the 60%~80% of the graphene film content.The auxiliary agent of the content with described point
Powder cooperates, and so that the graphene dispersing solution is had suitable viscosity and surface-active, to preferably disperse, and makes
The graphene dispersing solution can preferably be attached between two adjacent steel plates and reduce to the greatest extent from adjacent two
It is flowed out between the steel plate.Concentration of the graphene film in the graphene dispersing solution can be 3mg/L~15mg/L.
In one embodiment, the step of offer graphene dispersing solution includes by the dispersing agent, the auxiliary agent
It is ultrasonically treated with the graphene film.The temperature of the ultrasonic treatment can be 60 DEG C~100 DEG C.The ultrasonic treatment
Time can be 30min~120min.
In step s 30, described the step of being alternately superimposed the steel plate and the graphene dispersing solution may include: by
The graphene dispersing solution coating or the surface for being screen printed at least one in two adjacent steel plates, will be described adjacent
Two steel plates superpositions.Preferably, the graphene dispersing solution is coated or is screen printed onto two adjacent steel
After the surface of at least one in plate, two adjacent steel plates are superimposed immediately, to avoid the graphite as far as possible
Alkene dispersion liquid is flowed down along the steel plate.
In step s 40, by applying pressure at a certain temperature to the interlayer structure, make the graphene dispersion
The dispersion liquid in liquid volatilizees to form graphene layer, and is attached to the graphene layer tightly described in described adjacent two
Between steel plate.In one embodiment, the temperature of the Pretreatment with Pressurized can be 150 DEG C~300 DEG C.At said temperatures, make
The dispersing agent can volatilize to be conducive to further be sintered, and will not make the steel plate and the graphite at this temperature
Alkene piece is due to pressurization and deformation occurs.In one embodiment, the pressure of the Pretreatment with Pressurized can be 50T~100T.It is described
Pressure should not be too large, and the institutional framework of the thickness and the graphene film and steel plate that avoid the steel plate changes.
The time of the Pretreatment with Pressurized can be 10h~20h.
In step s 50, the temperature of the sintering can be 900 DEG C~1100 DEG C.The sintering temperature, which should control, is closing
Suitable range, the temperature of the sintering is unsuitable too low, and graphene film is avoided to bond insecure, the sintering temperature with the steel
It is excessively high, it may cause the steel burning and scrap, and may be such that graphene film and the steel are completely molten and be integrated
Alloy, so that the structure of graphene film can be destroyed.Preferably, the sintering can be less than or equal to 1.0 × 10 in vacuum degree-2Pa
Lower progress.It carries out that the steel is avoided to be oxidized during the sintering process under the vacuum degree.The sintering time can be 1h
~3h.By sintering, the both ends of the graphene layer are bonded with adjacent steel respectively, the steel as steel layer,
The graphene film forms graphene layer, to form the graphene steel composite material being superposed.
In one embodiment, the step of graphene steel composite material being processed as skates bracket 20 may include: by
The graphene steel composite material is bent into tubulose, the Direction of superposition of the axial direction of tubular structure and the graphene layer and steel layer
Vertically.
The embodiment of the present invention also provides a kind of ice skates, including shoe body, skates 40 and the skates bracket 20 or institute
The skates bracket 20 that the preparation method stated obtains, the skates bracket 20 are connected between the skates 40 and the shoe body.
Embodiment 1
, at 0.4mm thickness, and stress relief annealing will be carried out at 650~700 DEG C with a thickness of the steel plate rolling of 2~10mm,
The wherein carbon steel that the carbon content of steel plate used is 0.5%.
Steel plate after will be annealed carries out machinery and polishes to 0.3mm thickness, while roughness is in Ra0.8.
Steel plate after machinery is polished carries out electrobrightening, and polish temperature is 70 DEG C, current density 70Adm-2, electrolysis
Time 6min.Electrolyte component is phosphoric acid 650ml/L, sulfuric acid 150ml/L, water 150ml/L, chromium trioxide 50g/L.Electrobrightening
Steel plate is rinsed well with deionized water afterwards.
The mixed solution ultrasound 80min of graphene film, polyvinylpyrrolidone, dimethylformamide is obtained into graphene point
Dispersion liquid.Concentration of the graphene film in graphene dispersing solution is 7mg/L, and graphene film piece diameter is 10~15 μm, polyvinyl pyrrole
Alkanone content is the 70% of graphene film content.
Graphene dispersing solution is coated or is screen printed on the first steel plate by electrobrightening, graphene film is formed
Liquid, then another is pressed on the graphene film liquid of spin coating by the second steel plate of electrobrightening, so that forming centre is stone
The double-layer plate interlayer structure of black alkene film liquid.Graphene dispersing solution spin coating is with a thickness of 0.05 μm.
By interlayer structure at 250 DEG C the pressure maintaining 15h on press machine, pressure 100T, obtain graphene Steel material green body.
By graphene Steel material green body in vacuum degree 10-2Pa is answered hereinafter, being sintered 2h at 1000 DEG C of temperature and obtaining graphene steel
Condensation material.
Measuring Mechanical Properties are carried out to the graphene steel composite material of preparation, as a result as shown in table 1 below.
Embodiment 2
Embodiment 2 is substantially the same manner as Example 1, the difference is that only graphene dispersing solution coating or silk-screen printing thickness
It is 5 μm.
Embodiment 3
Embodiment 3 is substantially the same manner as Example 1, the difference is that only that the temperature of electrobrightening is 50 DEG C.
Comparative example 1
Comparative example 1 is substantially the same manner as Example 1, the difference is that only that the interlayer structure is pressed to form graphene steel
It is not sintered after material base body.
Comparative example 2
Comparative example 2 is substantially the same manner as Example 1, the difference is that only that the temperature of sintering is 1500 DEG C.
Comparative example 3
Comparative example 3 is substantially the same manner as Example 1, the difference is that only that the pressure of pressurization is 200T.
The mechanical performance of 1 graphene steel composite material of table
Embodiment and comparative example carries out the test of bending strength, hardness and impact strength under the same conditions.It can from table 1
To find out, the increase of graphene layer thickness makes graphene steel composite material show superior comprehensive mechanical performance.Pass through burning
Knot graphene film can be made preferably to be combined with steel, through oversintering make graphene steel composite material bending strength, hardness and
Mechanical performance in terms of impact flexibility is all greatly improved.Also, it is found through experiments that, sintering temperature, which needs to control, is closing
Suitable temperature range, temperature is excessively high may to be made graphene film and steel excessively fused and make the institutional framework of graphene film by broken
It is bad, it is unfavorable for improving the mechanical performance of graphene steel composite material.The excessive structure that can may also destroy graphene of moulding pressure,
It is unfavorable for the mechanical performance of graphene steel composite material.In addition, the too low surface of steel plate that is likely to result in of the temperature of electrobrightening is put down
Whole degree not enough, makes between steel plate and graphene film that there are gaps, is unfavorable for the mechanical performance of graphene steel composite material.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (14)
1. a kind of graphene steel composite material, which is characterized in that described including the steel layer and graphene layer being alternately superposed
The top layer in the direction of the superposition of graphene steel composite material and lowest level are the steel layer, two adjacent steel
Material layer passes through a graphene layer interval.
2. graphene steel composite material according to claim 1, which is characterized in that the graphene layer with a thickness of 0.05
μm~100 μm.
3. graphene steel composite material according to claim 1, which is characterized in that the steel layer with a thickness of 0.1mm
~1mm.
4. graphene steel composite material according to claim 1, which is characterized in that the graphene film in the graphene layer
Part is penetrated into the steel layer.
5. a kind of preparation method of graphene steel composite material, comprising:
Multiple steel plates are provided；
Graphene dispersing solution is provided, including graphene film dispersing agent and the graphene film being dispersed in the dispersion liquid；
The steel plate and the graphene dispersing solution are alternately superimposed, are sandwiched in the graphene dispersing solution described in adjacent two
Between steel plate, interlayer structure is formed, the top layer of the interlayer structure and lowest level are the steel plate；
Pretreatment with Pressurized is carried out to the interlayer structure；And
The interlayer structure after the Pretreatment with Pressurized is sintered at 900 DEG C~1100 DEG C.
6. the preparation method of graphene steel composite material according to claim 5, which is characterized in that the Pretreatment with Pressurized
Temperature be 150 DEG C~300 DEG C.
7. the preparation method of graphene steel composite material according to claim 5, which is characterized in that the Pretreatment with Pressurized
Pressure be 50T~100T.
8. the preparation method of graphene steel composite material according to claim 5, which is characterized in that the sintering is in vacuum
Degree is less than or equal to 1.0 × 10-2It is carried out under Pa.
9. the preparation method of graphene steel composite material according to claim 5, which is characterized in that the offer is described more
The step of a steel plate includes:
Machinery is carried out to the multiple steel plate to polish；And
The multiple steel plate after polishing to the machinery carries out electrobrightening.
10. the preparation method of graphene steel composite material according to claim 9, which is characterized in that the electrobrightening
Polish temperature be 60 DEG C~80 DEG C, current density 50Adm-2~100Adm-2, electrolysis time 5min~8min.
11. the preparation method of graphene steel composite material according to claim 9, which is characterized in that the electrobrightening
Electrolyte component include concentration be the phosphoric acid of 550ml/L~750ml/L, the sulfuric acid of 100ml/L~200ml/L, 30g/L~
The chromium trioxide and water of 70g/L.
12. the preparation method of graphene steel composite material according to claim 9, which is characterized in that further include: described
Before the step of machinery polishes, stress relief annealing is carried out to the multiple steel plate, the temperature of the annealing is 450 DEG C~800 DEG C.
13. the preparation method of graphene steel composite material according to claim 5, which is characterized in that the graphene point
Dispersion liquid further includes auxiliary agent, and the auxiliary agent includes one of neopelex and polyvinylpyrrolidone or a variety of.
14. a kind of graphene steel composite material according to claim 1-4 is appointed according to claim 5-13
The application for the graphene steel composite material that preparation method described in one obtains, which is characterized in that the graphene steel composite wood
Material is for manufacturing skates bracket.
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