CN105803581B - The method that air laid prepares graphene fiber - Google Patents
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- CN105803581B CN105803581B CN201510000112.1A CN201510000112A CN105803581B CN 105803581 B CN105803581 B CN 105803581B CN 201510000112 A CN201510000112 A CN 201510000112A CN 105803581 B CN105803581 B CN 105803581B
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- graphite oxide
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 185
- 239000000835 fiber Substances 0.000 title claims abstract description 107
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 53
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 87
- 239000010439 graphite Substances 0.000 claims abstract description 87
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000000843 powder Substances 0.000 claims abstract description 22
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 20
- 230000003647 oxidation Effects 0.000 claims abstract description 16
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 10
- 239000010935 stainless steel Substances 0.000 claims abstract description 10
- 238000007306 functionalization reaction Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 239000000839 emulsion Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000003698 laser cutting Methods 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 239000002243 precursor Substances 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 11
- 239000007924 injection Substances 0.000 abstract description 11
- 239000002131 composite material Substances 0.000 abstract description 4
- -1 graphite alkene Chemical class 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 239000011229 interlayer Substances 0.000 abstract 1
- 239000010408 film Substances 0.000 description 45
- 238000002360 preparation method Methods 0.000 description 9
- 238000009987 spinning Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 5
- 241001589086 Bellapiscis medius Species 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001027 hydrothermal synthesis Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- 239000011238 particulate composite Substances 0.000 description 1
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- 239000004575 stone Substances 0.000 description 1
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- 238000003786 synthesis reaction Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a kind of method that air laid prepares graphene fiber, method of the graphite oxide worm powder through jet-impingement after expansion is sprayed onto to the microporous nickel net surface of air lay in the presence of negative pressure air draft apparatus, two-sided gripping through mirror face stainless steel film Yu micropore nickel screen, in the presence of pressure roller, the graphite oxide worm powder after expansion is pressed into graphite oxide film；By graphite oxide film dividing into continuous oxidation graphite fibre；By continuous oxidation graphite fibre through fluid tip injection air twisting, while hole of the laser beam through nozzle tail end is mapped to a corresponding twisting point position, graphite oxide fiber is transformed into graphene fiber.This method is easy to operate, subsequent treatment and removal of impurities are not needed, cost is low, there is graphene fiber produced by the present invention the twist, piece interlayer to be tightly combined, appearance and consistent internal structure, mechanical performance is outstanding, can before graphite oxide film dividing coating nanometer functional material, obtain the composite graphite alkene fiber of functionalization.
Description
Technical field
The invention belongs to graphene oxide and grapheme material preparing technical field, and in particular to a kind of air lay legal system
The method of standby graphene fiber, belongs to dry spinning method.
Background technology
Most basic construction unit of the graphene as all carbon materials, there is real monoatomic layer thickness and strict two
Structure is tieed up, there is very high mechanical strength, elasticity, thermal conductivity, electron mobility（100,000cm2· V-1·s-1）And amount
Sub- Hall effect etc..Obtained since British scientist An Delie Jim in 2010 and Ke Siteyanuowosainuo have found graphene
Since obtaining the Nobel Prize, graphene research reaches unprecedented research climax, and increasing research finds that graphene can use
In field-effect transistor, high-frequency element, super microprocessor and single-molecule detection device etc..And it is made up of graphene for elementary cell
Three-dimensional structure material, such as film and bulk material, can be applied to controllable Breathable filmses, anisotropy ion-conducting material, super
The field of functional materials such as capacitor, lithium ion battery and energy catalysis.
Consider from practical application angle, nano-graphene material is changed into macrostructure material undoubtedly very valuable
The research direction of value.A main bugbear in graphene research and application is effective assembling of graphene macrostructure, at present
Relatively successfully assembling is to obtain the film and bulk of three-dimensional structure.In the graphene side that assembling macrostructure is one-dimentional structure
Face；Although graphene fiber has been prepared at present, because the solubility of graphene in itself is low and sticky difference, institute
To be difficult to prepare high strength graphite alkene fiber.
At present, domestic and international researcher has prepared graphene fiber by different methods respectively.Zhejiang University is high
Superfine people and Chinese University of Science and Technology's Yu's book are grand et al. the different precipitating reagents of selection have obtained graphite by wet spinning-reduction two-step method
Alkene fiber.Beijing Institute of Technology Qu Liangti et al. in glass tube high temperature hydro-thermal reaction by having obtained graphene fiber.Qu Liang
The document report of body etc., the document, which discloses, is injected into graphene oxide solution in the internal capillary equipped with copper wire, enters water-filling
The fiber of thermal synthesis graphene/copper wire, removes to obtain hollow graphene micro-nano mitron after cooling by copper wire, prepared by this method
Graphene micro-nano mitron have certain suppleness, but be unable to continuous production, can only obtain graphene micro-nano mitron, it is impossible to
Obtain graphene oxide doughnut, and this method subsequent treatment and except miscellaneous operation is time-consuming very long, have much room for improvement or develop
New method.
In recent years, patent CN201180020978.9 was used for the technique for spinning graphene ribbon fiber, disclosed CNT
The method for expanding into graphene ribbon；201410016557.4、CN 201210001537.0（By large-size graphene oxide sheet system
The method of standby high-strength conductive graphene fiber）、CN201210001524.3（A kind of high-strength graphene ordered porous fibers and
Its preparation method）、CN201210017773.1（A kind of preparation method of graphene fiber）、CN201210001 536.6（It is a kind of
Ion-enhanced graphene fiber and preparation method thereof）、CN201110441254.3（A kind of high strength macro graphene conductive fiber
Preparation method）Etc. disclosing different wet laid fiber preparation methods；CN201310064 816.6（Graphene/TiO2 fibers
Preparation method）Disclose wet method and prepare the technique for mixing titanium oxide；CN201110098809.9（Electrospinning-hydro-thermal method prepares graphite
The method of alkene/ceramic nano crystalline substance particulate composite）The method for disclosing wet electrostatic spinning； CN200580000581.8（Tool
There is the fine carbon fiber of various structures）Disclose the performance of axially vertical fine carbon fiber；Therefore one kind can be efficiently using existing
Have, be ripe, Traditional Industrialization equipment, easy one-step method and low temperature, the method for leniently preparing graphene fiber need out
Hair, so as to more preferable large-scale application.
The content of the invention
The technical problems to be solved by the invention are to prepare graphene fibre using wet method in the prior art to overcome
A kind of the defects of preparation method of dimension needs to dry big power consumption, complex process, there is provided method of dry process graphene fiber.
The preparation method of the present invention is simple to operate, mild condition, and the cost of raw material is low；It is prepared using method of the present invention
Graphene fiber, even structure, mechanical performance is excellent, easy functionalization.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of method that air laid prepares graphene fiber, step are as follows：
（1）By method of the graphite oxide worm powder through jet-impingement after expansion negative pressure air draft apparatus effect（Negative pressure
Air intake device can be uniformly distributed graphite oxide worm powder, formed for uniform film oxidation graphite and provide basis）Under be sprayed onto gas
Microporous nickel net surface into the net is flowed, the two-sided gripping through mirror face stainless steel film Yu micropore nickel screen, in the presence of pressure roller, will be expanded
Graphite oxide worm powder afterwards is pressed into ultra-thin graphite oxide film；
（2）With film splitter with 10-240m/s speed, by ultra-thin graphite oxide film dividing into continuous oxidation graphite
Fiber；
（3）By continuous oxidation graphite fibre per 1-10 roots it is one group and sprays air twisting through fluid tip, while by laser
Point position is twisted in hole of the beam through nozzle tail end corresponding to being mapped to, and graphite oxide fiber is transformed into graphene fiber；
（4）By step（3）Obtained graphene fiber is output to coiling and molding device, is directly prepared into certain package capacity band
The graphene fiber bobbin of the twist.
The step（1）Middle roller surface linear velocity is 10-240m/s, and pressure is 5 ~ 10 tons.
The step（1）It is middle that graphite oxide worm is pressed into the ultra-thin oxygen that thickness is 30-100 μm, breadth is 100mm
Graphite film.
The step（2）With film splitter by ultra-thin graphite oxide film dividing into 33-1176 roots, width 0.085-
3.0mm continuous oxidation graphite fibre.
The step（2）Middle film splitter cutter for same uses mechanical type rotating circular knife module, straight knife piece module, surpassed
The cutting form of sound wave blade module or laser cutting module.
The step（3）The laser beam of middle use has the effect of thermal reduction.
The step（3）In laser beam be 650nm, the beam of laser beam 4 of 80-1000 milliwatts.
To step（1）It is molten that the ultra-thin graphene oxide film top layer being prepared applies plus nano functional particulate, nano functional
Liquid/emulsion, nano material presoma emulsion/solution, the graphene oxide and graphene fiber of functionalization is prepared.
Step（3）Middle fluid tip injection air twister is the special nozzle for the sir jet spinning machines that cotton spinning enterprise uses
And with its design principle identical device.
Beneficial effects of the present invention：1. the invention provides a kind of dry-forming method of graphene oxide fiber, the party
Method operating process is easy, and the preparation of graphene fiber is directly realized by using existing Weaving device, through rational design and matching phase
The ripe accessory answered, graphene fiber can be directly obtained with pure graphene composite thin film, it is not necessary to subsequent treatment
And removal of impurities；Graphene fiber can be largely obtained, in the range of equipment license, it is possible to quick to prepare up to several myriametres length
Graphene fiber, and specific package is formed, it is easy to the industrial applications of next step；2. the construction material graphene oxide utilized
Wide material sources, cost is low, can a large amount of continuous productions；3. graphene fiber produced by the present invention has the twist, graphene sheet layer
Between be tightly combined, graphene fiber appearance and consistent internal structure, mechanical performance is outstanding, flexible, flexible；4. the present invention carries
The method for having supplied air laid to prepare graphene fiber, can before graphite oxide film dividing coating nanometer functional material, obtain
To the composite graphite alkene fiber of the in-situ modification containing equally distributed nano functional.
Figure of description
Fig. 1 is the process chart that air laid of the present invention prepares graphene fiber.
Fig. 2 is that air laid of the present invention prepares graphene fiber（MULTILAYER COMPOSITE）Process chart.
Embodiment
To be best understood from the present invention, the present invention is described in further detail with reference to specific embodiment.
Embodiment 1
As shown in figure 1, by the graphite oxide worm powder after expansion（It is long 0.5 centimetre, 0.3 millimeter of diameter）Filled through jet-impingement
1 surface of micropore nickel screen 3 that air lay is sprayed onto in the presence of negative pressure air draft apparatus 8 is put, through mirror face stainless steel film 2 and microporous nickel
The two-sided gripping of net 3, the graphite oxide worm powder after expansion is pressed into ultra-thin graphite oxide film, negative pressure through pressure roller system 4
Air intake device can be uniformly distributed graphite oxide worm powder, formed for uniform film oxidation graphite and provide basis；Roller surface
Linear velocity 10m/s speed, 10 tons of pressure, graphite oxide worm is pressed into thickness as 30 μm（Breadth 100mm）Ultra-thin oxygen
Graphite film, with ultrasonic wave blade module film splitter 5 with the same linear resonance surface velocity of pressure roller, cut into 1000, it is wide
The continuous fiber for 0.1mm is spent, every 10 are one group and spray air twisting, while four beam 650nm, 500 milliwatts through fluid tip
Hole of the laser 6 through nozzle tail end be mapped to corresponding to a twisting point position, graphite oxide fiber is transformed into graphene fiber, and twisting is same
The binding strength of step increase graphene sheet layer, it is little to solve the problems, such as that other method prepares the raising of graphene fiber intensity；Obtain
A diameter of 0.8mm of graphene fiber, the band twist are obtained, fracture strength is more than 200MPa.Coiling and molding device is output to simultaneously, directly
Connect the graphene fiber bobbin 7 with the twist for being made that package capacity is diameter 60mm, high 190mm.
Embodiment 2
By the graphite oxide worm powder after expansion（It is long 1 centimetre, 0.5 millimeter of diameter）Method through jet-impingement is sprayed onto air-flow
Microporous nickel net surface into the net, the two-sided gripping through mirror face stainless steel film Yu micropore nickel screen, will be swollen in the presence of pressure roller system
Graphite oxide worm powder after swollen is pressed into ultra-thin graphite oxide film；Roller surface linear velocity 10m/s speed, pressure 10
Ton, graphite oxide worm is pressed into thickness as 30 μm（Breadth 100mm）Ultra-thin graphite oxide film, with laser cut module
Film splitter cuts into 100, width is 1.0mm continuous fiber, and every 1 is one with the same linear resonance surface velocity of pressure roller
Group is through fluid tip injection air twisting, while four beam 650nm, hole of the laser of 500 milliwatts through nozzle tail end are mapped to corresponding
Twisting point position, graphite oxide fiber are transformed into graphene fiber, twist the binding strength of synchronous increase graphene sheet layer, solve
Other method prepares graphene fiber intensity and improves the problem of little；A diameter of 1mm of acquisition graphene fiber, the band twist,
Fracture strength is more than 200MPa, while is output to coiling and molding device, and it is diameter 60mm, high 190mm to be directly prepared into package capacity
The graphene fiber bobbin with the twist.
Embodiment 3
By the graphite oxide worm powder after expansion（It is long 1 centimetre, 1 millimeter of diameter）Method through jet-impingement be sprayed onto air-flow into
The microporous nickel net surface of net, the two-sided gripping through mirror face stainless steel film Yu micropore nickel screen, in the presence of pressure roller system, will expand
Graphite oxide worm powder afterwards is pressed into ultra-thin graphite oxide film；Roller surface linear velocity 10m/s speed, 10 tons of pressure,
Graphite oxide worm is pressed into thickness as 30 μm（Breadth 100mm）Ultra-thin graphite oxide film, with straight knife piece module film
Cutting machine cuts into 33, width is 3.0mm continuous fiber, and every 1 for one group through stream with the same linear resonance surface velocity of pressure roller
The injection air twisting of body nozzle, while four beam 650nm, hole of the laser of 500 milliwatts through nozzle tail end are mapped to corresponding twisting point
Position, graphite oxide fiber are transformed into graphene fiber, twist the binding strength of synchronous increase graphene sheet layer, solve other
Method prepares graphene fiber intensity and improves the problem of little；Obtain a diameter of 0.15mm of graphene fiber, the band twist, fracture
Intensity is more than 200MPa.Coiling and molding device is output to simultaneously, it is diameter 60mm to be directly prepared into package capacity, high 190mm band
The graphene fiber bobbin of the twist.
Embodiment 4
As shown in Fig. 2 by the graphite oxide worm powder after expansion（It is long 0.5 centimetre, 0.3 millimeter of diameter）Sprayed through three sets of air-flows
Injection device 1 is sprayed onto the surface of micropore nickel screen 3 of air lay in the presence of negative pressure air draft apparatus 8, through mirror face stainless steel film 2 with
The two-sided gripping of micropore nickel screen 3, through pressure roller system 4, it is thin that the graphite oxide worm powder after expansion is pressed into ultra-thin graphite oxide
Film；Roller surface linear velocity 10m/s speed, 10 tons of pressure, graphite oxide worm is pressed into thickness as 30 μm（Breadth
100mm）Ultra-thin graphite oxide film, with mechanical type rotating circular knife module film splitter 5 with the same surface line of pressure roller
Speed, 1000 will be cut into after 3 ultra-thin graphite oxide Film laminateds, width is 0.1mm continuous fiber, and every 10 are one
Group is through fluid tip injection air twisting, while four beam 650nm, hole of the laser 6 of 500 milliwatts through nozzle tail end are mapped to corresponding
Twisting point position, graphite oxide fiber are transformed into graphene fiber, twist the binding strength of synchronous increase graphene sheet layer, solve
Other method prepares graphene fiber intensity and improves the problem of little；A diameter of 0.8mm of graphene fiber is obtained, band is twisted with the fingers
Degree, fracture strength are more than 200MPa.Coiling and molding device is output to simultaneously, it is diameter 60mm to be directly prepared into package capacity, high
The 190mm graphene fiber bobbin 7 with the twist.
Embodiment 5
The method that the air laid of the present embodiment prepares graphene fiber, step are as follows：
（1）By method of the graphite oxide worm powder through jet-impingement after expansion in the presence of negative pressure air draft apparatus, spray
To the microporous nickel net surface of air lay, the two-sided gripping through mirror face stainless steel film Yu micropore nickel screen, it is in linear resonance surface velocity
10m/s, pressure be 10 tons pressure roller effect under, by the graphite oxide worm powder after expansion be pressed into thickness be 30 μm, breadth be
100mm ultra-thin graphite oxide film；
（2）To step（1）The ultra-thin graphene oxide film top layer being prepared applies plus nano functional particulate, with film point
Machine is cut with 10m/s speed, by ultra-thin graphite oxide film dividing into 1176, width is 0.085mm continuous oxidation graphite
Fiber；
（3）By continuous oxidation graphite fibre, every 1 is one group empty through fluid tip injection air twisting, fluid tip injection
Gas twister be the special nozzle of sir jet spinning machines that cotton spinning enterprise uses and with its design principle identical device, simultaneously
A corresponding twisting point position is mapped to by 4 beam 650nm, 80 milliwatts and with hole of the thermal reduction laser beam of effect through nozzle tail end,
Graphite oxide fiber is transformed into graphene fiber；
（4）By step（3）Obtained graphene fiber is output to coiling and molding device, is directly prepared into certain package capacity band
The graphene fiber bobbin of the functionalization of the twist.
Embodiment 6
The method that the air laid of the present embodiment prepares graphene fiber, step are as follows：
（1）By method of the graphite oxide worm powder through jet-impingement after expansion in the presence of negative pressure air draft apparatus, spray
To the microporous nickel net surface of air lay, the two-sided gripping through mirror face stainless steel film Yu micropore nickel screen, it is in linear resonance surface velocity
240m/s, pressure be 5 tons pressure roller effect under, by the graphite oxide worm powder after expansion be pressed into thickness be 100 μm, breadth be
100mm ultra-thin graphite oxide film；
（2）To step（1）The ultra-thin graphene oxide film top layer being prepared applies plus nano function solution, with film point
Machine is cut with 240m/s speed, by ultra-thin graphite oxide film dividing into 500, the continuous oxidation graphite that width is 0.2mm is fine
Dimension；
（3）By continuous oxidation graphite fibre, every 10 are sprayed air twisting, fluid tip injection for one group through fluid tip
Air twister be the special nozzle of sir jet spinning machines that cotton spinning enterprise uses and with its design principle identical device, together
When by 4 beam 650nm, 1000 milliwatts and with hole of the thermal reduction laser beam of effect through nozzle tail end be mapped to corresponding to twisting point
Position, graphite oxide fiber is transformed into graphene fiber；
（4）By step（3）Obtained graphene fiber is output to coiling and molding device, is directly prepared into certain package capacity band
The graphene fiber bobbin of the functionalization of the twist.
Embodiment 7
The method that the air laid of the present embodiment prepares graphene fiber, step are as follows：
（1）By method of the graphite oxide worm powder through jet-impingement after expansion in the presence of negative pressure air draft apparatus, spray
To the microporous nickel net surface of air lay, the two-sided gripping through mirror face stainless steel film Yu micropore nickel screen, it is in linear resonance surface velocity
100m/s, pressure be 8 tons pressure roller effect under, by the graphite oxide worm powder after expansion be pressed into thickness be 50 μm, breadth be
100mm ultra-thin graphite oxide film；
（2）To step（1）The ultra-thin graphene oxide film top layer being prepared applies plus nano functional particulate, nano functional
The graphene oxide and graphene fiber of functionalization is prepared in solution/emulsion, nano material presoma emulsion/solution, and use is thin
Film cutting machine is with 100m/s speed, and by ultra-thin graphite oxide film dividing into 200, width is 0.5mm continuous oxidation stone
Black fiber；
（3）By continuous oxidation graphite fibre, every 5 are one group empty through fluid tip injection air twisting, fluid tip injection
Gas twister be the special nozzle of sir jet spinning machines that cotton spinning enterprise uses and with its design principle identical device, simultaneously
A corresponding twisting point position is mapped to by 4 beam 650nm, 500 milliwatts and with hole of the thermal reduction laser beam of effect through nozzle tail end,
Graphite oxide fiber is transformed into graphene fiber；
（4）By step（3）Obtained graphene fiber is output to coiling and molding device, is directly prepared into certain package capacity band
The graphene fiber bobbin of the functionalization of the twist.
Claims (7)
1. a kind of method that air laid prepares graphene fiber, it is characterised in that step is as follows：
（1）Method of the graphite oxide worm powder through jet-impingement after expansion is sprayed onto air-flow in the presence of negative pressure air draft apparatus
Microporous nickel net surface into the net, the two-sided gripping through mirror face stainless steel film Yu micropore nickel screen, in the presence of pressure roller, after expansion
Graphite oxide worm powder be pressed into graphite oxide film；
（2）With film splitter with 10-240m/s speed, by graphite oxide film dividing into continuous oxidation graphite fibre；
（3）Continuous oxidation graphite fibre is one group per 1-10 roots and sprays air twisting through fluid tip, while laser beam is passed through
Point position is twisted in the hole of nozzle tail end corresponding to being mapped to, and graphite oxide fiber is transformed into graphene fiber；
（4）By step（3）Obtained graphene fiber is output to coiling and molding device, is directly prepared into the graphene fiber with the twist
Bobbin；
The step（2）With film splitter by graphite oxide film dividing into 33-1176 roots, width 0.085-3.0mm
Continuous oxidation graphite fibre.
2. the method that the air laid according to claim 1 prepares graphene fiber, it is characterised in that：The step
（1）Middle roller surface linear velocity is 10-240m/s, and pressure is 5 ~ 10 tons.
3. the method that the air laid according to claim 1 prepares graphene fiber, it is characterised in that：The step
（1）It is middle that graphite oxide worm is pressed into the graphite oxide film that thickness is 30-100 μm, breadth is 100mm.
4. the method that the air laid according to claim 1 prepares graphene fiber, it is characterised in that：The step
（2）Middle film splitter uses mechanical type rotating circular knife module, straight knife piece module, ultrasonic wave blade module or laser cutting die
The cutting form of group.
5. the method that the air laid according to claim 1 prepares graphene fiber, it is characterised in that：The step
（3）The laser beam of middle use has the effect of thermal reduction.
6. the method that the air laid according to claim 1 prepares graphene fiber, it is characterised in that：The step
（3）In laser beam be 650nm, the beam of laser beam 4 of 80-1000 milliwatts.
7. the method that the air laid according to any one of claim 1 ~ 6 prepares graphene fiber, its feature exists
In：To step（1）The graphite oxide film top layer being prepared applies plus nano functional particulate, nano functional solution/emulsion, received
Rice material precursor emulsion/solution, the graphite oxide film of functionalization is prepared.
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| US5683778A (en) * | 1992-12-09 | 1997-11-04 | Crosier; Robert A. | Braided graphite-foil and method of production |
| EP0967423A2 (en) * | 1998-06-27 | 1999-12-29 | Sgl Technik Gmbh | Packing yarn of graphite and plastic sheet |
| CN1274816A (en) * | 1999-05-14 | 2000-11-29 | 日本玛泰克斯株式会社 | Material for use in gland packing element the gland packing element and manufacture thereof |
| CN1683131A (en) * | 2004-04-16 | 2005-10-19 | Sgl碳股份公司 | Method for manufacture of shaped bodies of expanded graphite |
| CN101215743A (en) * | 2008-01-14 | 2008-07-09 | 青岛大学 | Method for spinning polytetrafluoroethylene yarn and wire yarn |
| CN102976319A (en) * | 2012-12-25 | 2013-03-20 | 宜昌新成石墨有限责任公司 | High-purity-graphite ultrathin membrane with high tensile strength and high thermal conductivity, and production equipment of membrane |
| CN103382593A (en) * | 2013-07-15 | 2013-11-06 | 浙江工业职业技术学院 | Production method and production device of photocatalysis film breaking yarn |
| CN102800382B (en) * | 2012-08-24 | 2014-12-10 | 潍坊市宏宇电力设备防护有限公司 | Graphite wire, production process for graphite wire and production equipment for graphite wire |
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| JPH0424960A (en) * | 1990-05-15 | 1992-01-28 | Seiko Instr Inc | Semiconductor device |
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| CN1034217A (en) * | 1987-09-28 | 1989-07-26 | 地方国营浙江慈溪密封材料厂 | Universal packing of expanded graphite and manufacture method |
| US5683778A (en) * | 1992-12-09 | 1997-11-04 | Crosier; Robert A. | Braided graphite-foil and method of production |
| CN1096530A (en) * | 1993-06-17 | 1994-12-21 | 清华大学 | Method for making compound enhanced flexible graphite stuffing |
| CN1106443A (en) * | 1994-11-22 | 1995-08-09 | 萧山市密封件厂 | Method for prodn. of flexible graphite weaving filler |
| EP0967423A2 (en) * | 1998-06-27 | 1999-12-29 | Sgl Technik Gmbh | Packing yarn of graphite and plastic sheet |
| CN1274816A (en) * | 1999-05-14 | 2000-11-29 | 日本玛泰克斯株式会社 | Material for use in gland packing element the gland packing element and manufacture thereof |
| CN1683131A (en) * | 2004-04-16 | 2005-10-19 | Sgl碳股份公司 | Method for manufacture of shaped bodies of expanded graphite |
| CN101215743A (en) * | 2008-01-14 | 2008-07-09 | 青岛大学 | Method for spinning polytetrafluoroethylene yarn and wire yarn |
| CN102800382B (en) * | 2012-08-24 | 2014-12-10 | 潍坊市宏宇电力设备防护有限公司 | Graphite wire, production process for graphite wire and production equipment for graphite wire |
| CN102976319A (en) * | 2012-12-25 | 2013-03-20 | 宜昌新成石墨有限责任公司 | High-purity-graphite ultrathin membrane with high tensile strength and high thermal conductivity, and production equipment of membrane |
| CN103382593A (en) * | 2013-07-15 | 2013-11-06 | 浙江工业职业技术学院 | Production method and production device of photocatalysis film breaking yarn |
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| CN105803581A (en) | 2016-07-27 |
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