WO2015056978A1 - Dispositif de fabrication de film nanotexturé - Google Patents

Dispositif de fabrication de film nanotexturé Download PDF

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Publication number
WO2015056978A1
WO2015056978A1 PCT/KR2014/009691 KR2014009691W WO2015056978A1 WO 2015056978 A1 WO2015056978 A1 WO 2015056978A1 KR 2014009691 W KR2014009691 W KR 2014009691W WO 2015056978 A1 WO2015056978 A1 WO 2015056978A1
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WO
WIPO (PCT)
Prior art keywords
nozzle
module
electrospinning
roll
film base
Prior art date
Application number
PCT/KR2014/009691
Other languages
English (en)
Korean (ko)
Inventor
윤석구
안성필
엘야린 알렉산더
Original Assignee
고려대학교 산학협력단
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Priority claimed from KR20140033128A external-priority patent/KR20150044792A/ko
Application filed by 고려대학교 산학협력단 filed Critical 고려대학교 산학협력단
Publication of WO2015056978A1 publication Critical patent/WO2015056978A1/fr

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/0007—Electro-spinning
    • D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
    • D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
    • D01D5/0084—Coating by electro-spinning, i.e. the electro-spun fibres are not removed from the collecting device but remain integral with it, e.g. coating of prostheses

Definitions

  • the present invention relates to a heat radiation technology of electric and electronic products such as LED lighting and mobile phones and a technology capable of increasing critical heat flux (CHF) of a nuclear power plant using ecological imitation nanotechnology.
  • the present invention relates to a device and a method for manufacturing the devil visible nanotextured film using supersonic electrospinning and electroplating techniques that maximize the specific surface area obtained from the idea of a small devil lizard in Australia.
  • Heat dissipation technology that cools the heat generated from products is essential for long life and stable use of electrical and electronic products.
  • electroless plating catalysts are added to the electrospinning solution, so that the solution that can be used is limited and there are problems that the electrospinning is not smooth under certain external conditions.
  • ultrafine nanofibers with a diameter of 50 nm or less can be manufactured to maximize the specific surface area of the film, and at the same time, unlike electroless plating, electroplating can be used for the solution used for electrospinning.
  • electroplating can be used for the solution used for electrospinning.
  • the present invention is a technique for implementing effective heat dissipation of electrical, electronic and mechanical products by using an ecological mimic nanotextured film using supersonic electrospinning and electroplating.
  • the problem to be solved in the present invention is to produce a nano-textured film having a maximum heat dissipation rate by using a method that can replace the problem of the conventional method of heat dissipation technology.
  • the main object of the present invention is to use a supersonic electrospinning to produce a more robust, nanofiber film having the desired size and thickness, and also to maximize the non-visible form of nano-textured film through electroplating It is to provide a method for producing a heat dissipation nanofiber film having a surface area.
  • the present invention provides an electrospinning module having an electrospinning nozzle including a polymer spinning liquid fiberized through a high voltage and discharged to a film base, and an electroplating of the film base on which fibers discharged from the electrospinning nozzle are collected. It provides a nano-textured film manufacturing apparatus having an electroplating module to be.
  • the electrospinning module comprises: a high voltage generator for applying a high voltage to the electrospinning nozzle; A ground power source for forming an electric field in a space between the electrospinning nozzle and the fiber discharged from the electrospinning nozzle so as to be guided by an electrostatic force; And a gas injection nozzle for injecting gas in one direction, wherein the film base is disposed at a position opposite to the gas injection nozzle along a flow direction of the gas injected from the gas injection nozzle, and discharged from the electrospinning nozzle. Fiber may be collected in the film base by the flow force of the gas injected from the gas injection nozzle.
  • the ground power source is connected to a separate ground plate, the fiber discharged from the electrospinning nozzle may be induced to the ground plate by the electrostatic force.
  • the ground power source is connected to the gas injection nozzle, the fiber discharged from the electrospinning nozzle may be guided to the gas injection nozzle by the electrostatic force.
  • a nozzle ground portion connected to the ground power source is provided on the outside of the gas injection nozzle, and the ground power source is connected to the nozzle ground portion, and the fiber discharged from the electrospinning nozzle is discharged by electrostatic force. It can be guided to the gas injection nozzle.
  • a plurality of nozzle grounding portions may be provided to be concentrically arranged around the gas injection nozzle, and the connection to the ground power source of the nozzle grounding portion may be interrupted.
  • a plurality of nozzle grounding portions are provided concentrically around the gas injection nozzle, and the electrospinning nozzle is also opposed to the nozzle grounding portion with the same number with the gas injection nozzle interposed therebetween. Can be arranged correspondingly.
  • the electrospinning nozzle may alternatively be operated in pairs with the nozzle grounding portions disposed to face each other with the gas injection nozzles interposed therebetween.
  • the gas injection nozzle may inject gas at a supersonic flow rate.
  • the film base may be a conductive film.
  • the film base is a roll type capable of continuously processing, it may be further provided with a roll-to-roll module for transferring the film base.
  • the film base guide plate is disposed facing the gas injection nozzle with the film base therebetween, further provided with a film base guide plate for preventing movement of the film base by the gas injected from the gas injection nozzle Can be.
  • the electroplating module comprises: an electroplating module tank for accommodating the plating liquid in which the film base is immersed, and immersed in a plating liquid in the electroplating module tank, and formed of a predetermined plating metal.
  • An electroplating anode and an electroplating power supply unit for applying a voltage to the film base and the electroplating anode may be provided.
  • the roll-to-roll module is: a roll-to-roll electroplating guide which is grounded to guide the movement of the film base in contact with the film base, and the film base is movably positioned to be immersed in the plating solution. Rollers may be provided.
  • the bond strengthening module comprising a bond strengthening module tank disposed in the rear of the electroplating module in the advancing direction of the film base and containing a preset bond strengthening solution capable of immersing the film base.
  • the roll-to-roll module may include: a roll-to-roll bond reinforcing guide roller that enables the film face to be immersed in a preset bond-reinforcement solution in the bond-reinforcement module water bath.
  • a post-treatment module may be further provided which includes a cleaning module tank disposed behind the electroplating module in the advancing direction of the film base and containing a cleaning solution in which the film jay can be immersed.
  • the post-treatment module may further include a curer for drying and curing the surface of the film base.
  • the electrospinning module comprises: a high voltage generator for applying a high voltage to the electrospinning nozzle; A ground power source for forming an electric field in a space between the electrospinning nozzle and the fiber discharged from the electrospinning nozzle so as to be guided by an electrostatic force; And a gas injection nozzle for injecting gas in one direction, wherein the film base is disposed at a position opposite to the gas injection nozzle along a flow direction of the gas injected from the gas injection nozzle, and discharged from the electrospinning nozzle. Fiber is collected in the film base by the flow force of the gas injected from the gas injection nozzle, the pre-heater for increasing the temperature of the gas discharged from the gas injection nozzle may be further provided.
  • the present invention is to produce a heat-dissipating demon visible nanotextured film using supersonic electrospinning and electroplating technology, by changing the type of metal used in various supersonic electrospinning solutions and electroplating to suit the application, Application is possible.
  • the nano-textured film production apparatus of the present invention by increasing the surface area through the electroplating on the electrospun fibers can be produced a film that maximizes the heat dissipation performance to heat transfer performance.
  • the nano-textured film production apparatus of the present invention may reduce the manufacturing cost in a mass production method using a roll-to-roll module.
  • the nanotextured film production apparatus of the present invention may use a supersonic gas flow to enhance the adhesion of the fiber to the film base.
  • the nano-textured film production apparatus of the present invention may improve the versatility according to the design specifications by adjusting the immersion time in the plating liquid through the positional change of the guide roller in the electroplating module.
  • the nano-textured film manufacturing apparatus of the present invention may enhance the bonding strength of the metal material plated on the fiber surface through the process in the bonding reinforcement module or the post-treatment module, and may increase the durability of the film base product through the cleaning or curing process. have.
  • 1 to 3 is a schematic configuration diagram of a nano-textured film production apparatus according to an embodiment of the present invention.
  • FIG. 4 is a schematic cross-sectional view of a gas nozzle with a pre-heater of a nanotextured film production apparatus according to an embodiment of the present invention.
  • 5 and 6 are a partial perspective view and a configuration diagram showing another example of the electrospinning module of the nanotextured film production apparatus according to an embodiment of the present invention.
  • FIG 7 and 8 are SEM images of the plating metal on the film base on which the fibers obtained through electrospinning and electroplating through the nanotextured film production apparatus according to the embodiment of the present invention are collected.
  • FIG. 9 is an enlarged photograph of a film base (c) obtained through a nanotextured film production apparatus according to an embodiment of the present invention and a film base obtained under different conditions.
  • the present invention has excellent thermal conductivity.
  • the present invention provides an apparatus for producing a nano-textured film as a fiber film having a high specific surface area covered with a metal that generates high heat.
  • nano-textured film of the ecological imitation devil visible structure produced through the present invention is accompanied by excellent heat dissipation performance, it is possible to easily remove the heat generated from them mounted on various electrical, electronic and mechanical products.
  • FIG. 1 and 2 is a schematic and detailed configuration diagram showing the configuration of the nano-textured film manufacturing apparatus according to an embodiment of the present invention.
  • Nano-texture film manufacturing apparatus 1 includes an electrospinning module 10 and the electroplating module 11, the electrospinning module 10 is a polymer spinning liquid is fiberized through a high voltage And an electrospinning nozzle for discharging to the film base.
  • the nanotextured film manufacturing apparatus 1 of the present invention may include a control unit 20 and a storage unit 30.
  • the control unit 20 controls the operation of the electrospinning module 10 and the electroplating module 11, and optionally the operation of the roll-to-roll module 170, the coupling reinforcement module 13 and the after-treatment module 15 Can be controlled simultaneously.
  • control unit 20 includes the voltage unit 200 of the electrospinning module 11 to be described later, the polymer spinning solution supply unit 110 supplying the polymer spinning solution to the electrospinning nozzle, the gas injection nozzle 400, and the ground power source ( It is connected to a ground power interrupter (not shown) such as a switch to control the connection to 300, and a predetermined control signal is applied to control the spinning state and the gas flow state to collect the fiber to the collector 500 and the fiber smoothly. It may be possible to re-form.
  • a control signal for controlling the power supply of the electroplating power source 116 of the electroplating module 11 may be generated.
  • operation of the roll-to-roll unwinding roller driver 171a and the roll-to-roll winding roller driver 173a of the roll-to-roll module 170 and the roll-to-roll electroplating guide roller 1722 and the roll-to-roll reinforcing guide roller 1754 are movable. By varying the transfer path in the electroplating module to bond reinforcement module of the film base through the respective process time to speed may be adjusted.
  • the operation of the curler 15f of the aftertreatment module 15 may be controlled to selectively adjust certain drying and curing processes.
  • the storage unit 30 is connected to the control unit 20, the roll-to-roll electroplating guide for forming the radiation amount of the polymer spinning liquid, the gas flow pressure / speed and the interruption order of the ground power interrupter, the plating time in the electroplating module Including preset data such as the position of the roller, the reference power value of the electroplating power supply unit, the position of the coupling reinforcement guide roller for selecting the path of the coupling reinforcement module, and the operating time of the curler 15f of the post-processing module 15 Data according to the operation mode may be transferred to the control unit 20 to enable a predetermined smooth operation.
  • the electroplating module 11 electroplats the film base on which the fibers discharged from the electrospinning nozzles are collected with a predetermined plating metal
  • the nanotextured film manufacturing apparatus 1 according to an embodiment of the present invention provides nano
  • the film base to be textured is a roll type capable of being continuously processed, and the nanotextured film manufacturing apparatus 1 has a configuration further comprising a roll-to-roll module 170.
  • the present invention may take a method of manufacturing a nanotextured film by performing electrospinning module and electroplating on the film base individualized to each sheet type without accompanying a roll-to-roll module, but in this embodiment, a roll-to-roll module is provided.
  • the description focuses on the roll-to-roll method.
  • the film base 500 may have a structure formed of a material such as glass in some cases.
  • the film base 500 is formed of a conductive film, and may have a structure in which a metal layer of a metal material such as ITO, Cu, Ni, Ag, Au, or the like is formed on a polymer substrate such as PET, PC, or PVC.
  • a metal layer of a metal material such as ITO, Cu, Ni, Ag, Au, or the like is formed on a polymer substrate such as PET, PC, or PVC.
  • the film base may be configured as an individual sheet type as described above, the film base according to an embodiment of the present invention is formed in a roll type, it can be processed by a roll-to-roll module 170 at a predetermined feed rate have.
  • the roll-to-roll unwinding roller 171 and the roll-to-roll unwinding roller 173 are disposed in the roll-to-roll unwinding roller 170 and roll-to-roll rolls on which both ends of the roll-to-roll unwinding roller 171 and the roll-to-roll unwinding roller 173 are wound.
  • the film base 500 of the type is conveyed therebetween, and the driving force for conveying the film base 500 is by the roll-to-roll unwinding roller driver 171a and the roll-to-roll winding roller driver 173a connected to each roller. Is provided.
  • a separate drive unit may be further provided.
  • the roll-to-roll module 170 includes a roll-to-roll plating roller 1751, a roll-to-roll reinforcement roller 1753, and a roll-to-roll post-processing roller 1755 for entry and exit of the film base 500 for each module. .
  • the roll-to-roll module 170 may further include individual rollers.
  • the roll-to-roll module 170 may control a path of immersion in the plating solution 11e of the film base 500 in the electroplating module 170.
  • the electroplating guide roller 1702 and the bonding reinforcement module 13 to adjust the path and speed of the immersion in the predetermined bonding reinforcement solution 13e of the film base 500, in other words, can be adjusted It may further include a roll-to-roll coupling reinforcement guide roller 1754.
  • the film base 500 wound around both ends of the electrospinning module 10, the electroplating module 11, the bond strengthening module 13, and the aftertreatment module 15 may be subjected to a continuous process.
  • the electrospinning module 10 includes an electrospinning nozzle 100, a high voltage generator 200, and a ground power supply 300 connected to the ground plate 310. 10 further includes a gas injection nozzle 400, and the film base 500 is disposed at a position opposite to the gas injection nozzle 400 along the flow direction of the gas injected from the gas injection nozzle 400, thereby The fiber discharged from the spinning nozzle 400 is taken to the film base 500 by the flow force of the gas injected from the gas injection nozzle. By using the gas flow force discharged from the gas injection nozzle 400, the fiber formed by the polymer spinning solution is attached to the film base 500 by a collection coating method to enhance the adhesion of the fiber to the film base. Can be.
  • the electrospinning nozzle 100 is configured to discharge the polymer spinning liquid through a high voltage and to make a fiber, and is configured in such a manner that the polymer spinning liquid is supplied and discharged from a separate polymer spinning liquid supply unit 110 as shown in FIG. 1.
  • a syringe pump for supplying a fixed amount of the polymer spinning solution to the polymer spinning solution supply unit is used.
  • Polyacrylonitrile may be used as the polymer spinning solution, or a solution containing a mixture of polyvinyl alcohol (PVA) and water may be used, and formic acid may be used when a polymer having excellent mechanical properties such as nylon is used.
  • PVA polyvinyl alcohol
  • Various polymer materials may be used in a range that takes a structure capable of discharging to the film base 500 through an electrospinning nozzle, such as a strong acid solution such as).
  • the electrospinning nozzle 100 may be a nozzle in the form of a cone jet to receive and discharge the polymer spinning liquid from a syringe pump (not shown).
  • the high voltage generator 200 applies a high voltage to the electrospinning nozzle 100, and correspondingly, a separate ground power source 300 is provided at a position spaced apart from the electrospinning nozzle 100.
  • the ground power source 300 is connected to a separate ground plate 310 as shown in FIG. 1 to form an electric field in the space between the ground plate 310 and the electrospinning nozzle 100 or as shown in FIG. 2.
  • the electric field may be formed in the space between the gas injection nozzle 400 and the electrospinning nozzle 100 by being connected to the gas injection nozzle 400.
  • the fiber 600 discharged from the electrospinning nozzle 100 according to the electric field is induced to flow from the electrospinning nozzle 100 toward the ground plate 310 or the gas injection nozzle 400 by the electrostatic force.
  • the electrospinning nozzle 100 when the electrospinning nozzle 100 is positioned at the top, and the ground power source 300 is connected to the ground plate 310 positioned vertically below the electrospinning nozzle 100, Since the fiber discharged from the electrospinning nozzle 100 is discharged in a charged state by receiving a high voltage from the high voltage generator 200, the fiber discharged downward by the electric field formed between the electrospinning nozzle 110 and the ground plate 310. It is induced to flow toward the ground plate 310 under the electrostatic force.
  • the fibers discharged from the electrospinning nozzle 100 may flow toward the gas injection nozzle 400 in the same principle. Induced.
  • the gas injection nozzle 400 is configured to inject gas in a direction different from the electrostatic force direction of the electric field
  • the gas injection nozzle 400 in the present embodiment is formed as a supersonic nozzle to the gas in the gas injection nozzle 400 Can be injected at a supersonic flow rate.
  • the flow rate of the injected gas is configured to have a speed of about 300 m / s or more in the supersonic flow of Mach number 1 or more.
  • the fiber discharged from the electrospinning nozzle 100 receives the force induced by the electrostatic force and at the same time receives the force by the flow flow of the gas injected from the gas injection nozzle 400, in this case, the gas flow flow
  • the force by the force is configured to act larger than the force induced by the electrostatic force, so that the discharged fibers can be attached to the film base 500 by a strong flow force.
  • the electrostatic force direction due to the electric field acting on the fiber 600 discharged from the electrospinning nozzle 100 and the flow force direction of the gas by the gas injection nozzle 400 may have a predetermined angle with each other as shown in FIG. 1.
  • a predetermined angle may be formed to form a right angle direction.
  • the direction of the electrostatic force and the direction of the gas flow force may be perpendicular to each other so that the fibers discharged from the electrospinning nozzle may stably flow into the gas flow.
  • the predetermined angle between the electrostatic force direction of the nozzle and the gas flow force direction may be appropriately adjusted in consideration of the structure of the ground power source, the distance between the gas injection nozzle and the electrospinning nozzle, and the like.
  • the gas injection nozzle 400 may further include a component that increases the temperature of the gas discharged through the gas injection nozzle 400 in the supersonic nozzle, that is, the reduction-expansion nozzle.
  • the gas injection nozzle 400 implemented as a supersonic nozzle is a pre-heater having a structure arranged along the flow direction of the gas injected to the outer periphery of the gas injection nozzle (400) 800 may be further provided.
  • the pre-heater 800 can be configured in a variety of ranges to provide heat, in the present embodiment is formed of an electric heating wire is operated in accordance with the heater control signal input through the control unit 20 (see Fig. 1) is heated by the gas injection nozzle It is also possible to increase the temperature of the gas flowing through the 400.
  • the preheater 800 has a configuration interposed in the gas injection nozzle 400, but may take a configuration in which the outer circumferential surface of the preheater is wound.
  • Various configurations are possible, such as a method of directly exchanging heat and being disposed between the compressor and the tip of the gas injection nozzle.
  • the electrospinning process in the supersonic gas flow in the electrospinning module 10 may be carried out as follows: a solution in which 15 wt% of nylon (nylon) is dissolved in formic acid or dimethylformamaide ) By supplying a solution of 6% polyacrylonitrile (polyacrylonitrile) in a 50 ⁇ L / hr according to the signal of the control unit 20 using the polymer spinning solution supply unit 110 implemented as a syringe pump and the voltage unit 200 At 8kV a voltage is applied.
  • Supersonic air capable of temperature control according to a temperature control signal of the control unit 20 by using a preheater 800 that is arranged in a compressor (not shown) connected to the polymer spinning solution supply unit 110 or in the gas injection nozzle 400. Is sprayed toward the electrospinning nozzle.
  • the electrospinning module 10 of the invention provides a reaction force against the flow force of the fiber 600 attached to the roll-type film base 500 to ensure a stable collection adhesion on the film base 500 of the fiber 600
  • the film base guide plate 700 may be further provided as a component for forming a state and preventing damage or movement of the film base 500 by the gas flow force.
  • the film base guide plate 700 is disposed to face the gas injection nozzle 400 with the film base 500 therebetween, and has a structure in which one surface of the film base 500 is disposed to maintain or adhere to a minimum gap. The movement of the film base 500 by the gas injected from the gas injection nozzle 400 may be prevented.
  • the film base guide plate 700 may have a chamfering or streamlined curved structure at both ends to minimize damage occurring when the film base 500 of the roll film type in the form of a thin film is transferred.
  • the nanotextured film manufacturing apparatus 1 has the ground plate 310 or the gas injection nozzle 100 of the fiber 600 discharged from the electrospinning nozzle 100 by electrostatic force.
  • the gas injection nozzle 400 receives the flow force of the gas acting in a direction perpendicular to the electrostatic force direction, so that the fiber 600 is subjected to shear stress by this gas flow becomes thinner. Therefore, it has a finer diameter.
  • the fiber 600 flows along the flow direction of the gas by the flow force of the gas in the process induced by the electrostatic force .
  • the roll-type film base 500 collecting the fibers 600 is disposed at a position opposite to the gas injection nozzle 400 along the flow direction of the gas injected from the gas injection nozzle 400 unlike the prior art.
  • the transfer is arranged to collect the fibers.
  • the feed rate of the film base 500 is adjusted by the roll-to-roll module 170 driven through the control unit 20.
  • the collection density of the fiber 600 may be low, or the collection of the fiber may be slow.
  • Various adjustments are possible, such as the density being increased and the thickness adjusted.
  • the shear stress due to the flow of gas acts on the fiber 600 discharged from the electrospinning nozzle 100 to obtain a finer diameter, for example, a fiber having a diameter of 100 nm or less. Can be.
  • the state of the collected fibers 600 may vary, and the electrospinning nozzle 100 and the gas injection nozzle 400 are the gas injection nozzle 400. It is preferred that the flow flow of the gas injected from the interstitial arrangement be such that the electrospinning nozzle 100 does not act as a resistive element.
  • the electrospinning nozzle 100 may be spaced apart from each other in a direction perpendicular to the fluidized bed 410 of the gas injected from the gas injection nozzle 400 to take an optimized electrospinning structure. have.
  • the electrospinning module having the electrospinning nozzle and the gas injection nozzle has been described a structure in which a single number is disposed only on one side of the film base 500, which is an example of both sides around the film base 500
  • Various configurations are possible depending on the environment or design specification of the process, such as may take a structure arranged in pairs, may be arranged on both sides but spaced apart so that the collection position of the fibers to point different positions.
  • the electrospinning module of the nanotextured film manufacturing apparatus has shown a structure in which a single electrospinning nozzle is disposed in the above embodiment, it may form a structure in which a plurality of electrospinning nozzles are arranged.
  • a plurality of nozzle ground portions 301b, 303b, and 305b of the ground power supply 300b are disposed around the end portion of the gas injection nozzle 400b of the electrospinning module of the nanotextured film manufacturing apparatus.
  • a plurality of electrospinning nozzles 100d; 101b, 103b, and 105b are also provided.
  • Each of the nozzle ground portions 301b, 303b, and 305b is disposed to face each of the electrospinning nozzles 100d with the nozzle outlet 401 interposed therebetween. , That is, paired.
  • each of the nozzle grounds forms a state in which the ground power state can be interrupted.
  • the nozzle ground is energized to form a ground state.
  • the polymer spinning liquid discharged from the electrospinning nozzle flows toward the opposite nozzle ground portion, and in this process, the polymer spinning liquid passes through the range of the nozzle discharge port of the gas injection nozzle.
  • the film is collected into a film base 500 (see FIGS. 1 and 6).
  • the film base guide plate 700 as described above may be disposed on the back side of the film base 500.
  • the pair of electrospinning nozzles and the nozzle ground as described above may be alternately operated to perform alternative operations in a sequential or sequential manner to prevent the formation of multijet in the electrospinning nozzles, thereby enabling smooth polymer spinning. have.
  • the electrospinning nozzle may be supported by the spinning nozzle support 120.
  • the spinning nozzle support 120 includes a support frame 121 and a support leg 123.
  • a plurality of support leg 123 is provided, one end is supported in contact with the gas injection nozzle 400b, the other end is in contact with the support frame 121.
  • the support frame 121 is implemented in a ring type, and the electrospinning nozzle 100b is disposed outside the support frame 121.
  • Each of the electrospinning nozzles 100b; 101b, 103b, and 105b may be connected to the voltage unit 200b through the radiating nozzle wires 201, 203, and 205 to form a predetermined voltage supply state.
  • the voltage unit 200b may be controlled according to the voltage control signal of the controller 20.
  • a plurality of nozzle ground portions 301b, 303b, and 305b are disposed on the outer circumference of the gas injection nozzle 400b at equal intervals at equal intervals with respect to the nozzle discharge ports 401 of the gas dispersion nozzle 400b.
  • the nozzle ground portions 301b, 303b, and 305b are connected to the ground wires 30; 31, 33, and 35, and each of the ground wires 31, 33, and 35 is connected to the ground power cut-off portion shown in FIG. 50 may be connected to the control unit 20 in accordance with the control signal is controlled to the ground state change can be made. That is, as shown in FIG. 1, the nanotextured film manufacturing apparatus of the present invention may include a control unit 20 and a storage unit 30.
  • the control unit 20 may include a polymer in a voltage unit 200b and an electrospinning nozzle.
  • the storage unit 30 is connected to the control unit 20 to control the data according to the operation mode, including the preset data such as the radiation amount of the polymer spinning liquid, gas flow pressure / speed and the interruption order of the ground power interrupter. ) To enable a certain smooth operation.
  • the gas injection nozzle 400b according to the present exemplary embodiment may further include a preheater 800 as in the previous exemplary embodiment.
  • the pre heater 800 has a structure that surrounds the nozzle discharge port 401 outside the nozzle discharge port 401.
  • the preheater 800 has a configuration interposed in the gas injection nozzle 400, but may take a configuration in which the outer circumferential surface of the preheater is wound.
  • Various configurations are possible, such as taking the form of direct heat exchange.
  • the film base 500 of the corresponding area is transferred to the electroplating module 11. Transferred.
  • the sheet type film base when the film base is formed of a sheet type film base, the sheet type film base is mounted on a separate holder or guide (not shown) for mounting the sheet type film base to be immersed in the plating solution in the electroplating module. It may take a way to enter the plating module.
  • the film base 500 in which the fibers 600 are collected on the surface is roll-to-roll plating roller 1175 of the roll-to-roll module 170. Is guided to the electroplating module (11).
  • the roll-to-roll plating roller 1751 may be a simple guide driven roller, or may be provided with a separate driving unit and implemented as a driving roller.
  • the electroplating module 11 includes an electroplating module water tank 11a, an electroplating anode 11c, and an electroplating power supply portion 11b.
  • the electroplating module tank 11a accommodates the plating liquid 11e into which the film base 500 in which the fibers 600 are collected can be immersed, and the electroplating anode 11c is immersed in the plating liquid 11e in the electroplating module tank.
  • the electroplating power source 11b applies a voltage to the film base 500 from which the fibers 600 are collected and the electroplating anode 11c.
  • the plating solution 11e includes a metal to be electroplated as an electrolyte solution, which is determined according to a predetermined plating metal of the electroplating anode 11c.
  • the plating liquid may include a Cu plating liquid, and various selections are possible within a range of forming a predetermined electroplating.
  • the roll-to-roll electroplating guide roller 1752 has a roll-to-roll electroplating guide roller 1702, which is in contact with the film base 500 where the fibers are collected to guide the movement of the film base.
  • the roll-to-roll electroplating guide roller 1752 is grounded to generate a potential difference between the electroplating anode 11c.
  • the roll-to-roll electroplating guide roller 1752 has a structure capable of positional movement, and the roll-to-roll electroplating guide roller 1756 is movable in the vertical direction, for example, in the electroplating module 11, thereby providing a The movement path of the film base 500 in the plating module 11 may be changed to ultimately change the immersion time in the plating solution 11e in the electroplating module 11.
  • the roll-to-roll electroplating guide roller 1552 may be moved directly by an operator, but may further include a separate roll-to-roll electroplating guide roller driver.
  • the roll-to-roll electroplating guide roller drive part can be comprised by providing the motor which operates according to the control signal of a control part, and the rack-pinion power transmission part.
  • a separate gear for changing the gear ratio may be further disposed between the rack and the pinion.
  • the pinion is mounted on the rotating shaft of the motor, and a rack is connected to one side of the roll-to-roll electroplating guide roller 1752 through a linkage structure of the pinion and the rack engaged with the pinion which is operated according to the control signal of the controller. 1752 may be shifted vertically.
  • the metal forming the electroplating anode expands the surface area, that is, simply coats the outer surface of the fiber uniformly with one layer thickness. It is possible to maximize the surface area of the metal plated coated fibers on the film base by forming a continuous continuous growth structure from the plated surface coated with the metal to the outer surface as the tree branches, but not the branches.
  • the process in the electroplating module is, for example, when the electroplating anode 11c in which the predetermined electroplating metal is made of copper (Cu) is provided, the plating solution 11e is also an electrolyte solution containing a copper (Cu) component. Is formed.
  • electroplating was carried out for 3 minutes at a current density of 100 mA / cm 2 during copper plating, and a copper sulfate solution was used as the plating solution.
  • the electroplating anode When the electroplating anode was formed of silver (Ag), it was electroplated for 5 minutes at a current density of 100-150 mA / cm 2 .
  • the residence time in the electroplating module to immersion time in the plating liquid can be adjusted to various design specifications according to the fiber collection density in the film base to the area of the film base and the type of plating liquid including the preset solution.
  • control unit 20 drives the roll-to-roll module 170 to enter the film base 500 of the electrospinning and electroplating is completed into the bonding reinforcement module and / or post-treatment module Certain subsequent steps may optionally be carried out.
  • the bond reinforcing module 13 may prevent the metal coating film from being peeled off in the plating coating state by the metal forming the electroplating anode 11c on the fiber 600 attached to the film base 500.
  • the bond strengthening module 13 is disposed at the rear of the electroplating module 11 in the advancing direction of the film base 500 and the bond strengthening module tank for accommodating a preset bond strengthening solution in which the film base 500 is immersable ( 13c).
  • the bond strengthening solution 13e is disposed in the bond strengthening module water tank 13c.
  • the binding reinforcing solution 13e was selected as a 10% formaldehyde solution in this embodiment, but various materials could be selected in the range of performing the function of a reducing agent to enhance the bonding force between the nano-fiber 600 and the plating metal. Can be.
  • the bond reinforcement module 13 is equipped with a roll-to-roll reinforcement roller 1753 of the roll-to-roll module 170 to guide the film base entering the bond reinforcement module 13.
  • the roll-to-roll reinforcing roller 1753 may be a simple driven guide roller similarly to the roll-to-roll plating roller 1751 or may be implemented as a driving roller having a separate driving unit.
  • a roll-to-roll coupling reinforcement guide roller 1754 of the roll-to-roll module 170 is provided inside the coupling reinforcement module 13.
  • the roll-to-roll coupling reinforcement guide roller 1754 is predetermined according to a control signal of the controller 20. By varying the position, by changing the transfer path in the bond strengthening module of the film base, it is also possible to adjust the process time or speed such as the immersion time in the bond strengthening solution.
  • the driving of the roll-to-roll reinforcing guide roller 1754 can be moved through a separate drive unit and a power transmission element such as a rack-pinion. Replace.
  • the film base 500 may enter the aftertreatment module 15 after the electroplating module and / or the bond strengthening module is completed.
  • the post-processing module 15 includes a cleaning module water tank 15c disposed in the rear of the electroplating module in the advancing direction of the film base 500 and containing the cleaning liquid 15e in which the film base 500 can be immersed.
  • the roll-to-roll module 170 is operated in response to the feed control signal of the controller 20 to pass through the bonding reinforcement module 13 to the post-processing module 15 through the roll-to-roll post-processing roller 1755. Entering and cleaning time can be adjusted through the positional state of the roll-to-roll post-processing guide roller 1756 and the like as in the previous embodiment.
  • the time of each process such as electrospinning, electroplating, bond strengthening and post-treatment, may be achieved by adjusting the feed rate through the roll-to-roll module.
  • the post-processing module 15 may be further provided with a curler 15f for haying and curing the surface of the film base 500.
  • the curer 15f may be implemented with a predetermined heater or the like, and may perform a predetermined drying function by evaporating the cleaning liquid from the film base on which the electroplated fibers which have undergone the cleaning process during the post-treatment process are collected. Through a process such as bonding strengthening, the film base on which fibers are disposed may be heat-supplied to a predetermined temperature to form a stable curing state through a curing process.
  • the film base obtained through the nanotextured film production apparatus of the present invention can be used in various fields such as electronic products, mechanical devices, etc. in fields requiring heat dissipation, heat transfer, heat reception, and the like, such as heat dissipation or heat transfer.
  • the present invention is not limited to the above embodiments, and various modifications are possible in the range of achieving nanotexturization through electrospinning and electroplating using supersonic flow.
  • the above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.
  • the protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.
  • Apparatus and film produced through the nano-textured film production of the present invention can be used throughout the entire industry that requires heat dissipation performance, such as mobile phones, nuclear power plants.

Abstract

L'invention concerne un dispositif de fabrication de film nanotexturé, comprenant : un module d'électrofilage pourvu d'une buse d'électrofilage à travers laquelle une solution de filage polymère défibrée par d'intermédiaire d'une tension est déchargée sur une base de film ; et un module de dépôt électrolytique pour effectuer le dépôt électrolytique d'un métal prédéfini, la base de film dans laquelle une fibre est déchargée à partir de la buse de filage électrostatique étant recueillie.
PCT/KR2014/009691 2013-10-16 2014-10-15 Dispositif de fabrication de film nanotexturé WO2015056978A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR10-2013-0123307 2013-10-16
KR20130123307 2013-10-16
KR20140033128A KR20150044792A (ko) 2013-10-16 2014-03-21 나노텍스처 필름 제조 장치
KR10-2014-0033128 2014-03-21
KR10-2014-0061064 2014-05-21
KR1020140061064A KR101603011B1 (ko) 2013-10-16 2014-05-21 나노텍스처 필름 제조 장치

Publications (1)

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WO2015056978A1 true WO2015056978A1 (fr) 2015-04-23

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WO (1) WO2015056978A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090036600A (ko) * 2006-08-03 2009-04-14 바스프 에스이 기판으로의 금속층 도포 방법
KR20090050872A (ko) * 2007-11-16 2009-05-20 한양대학교 산학협력단 금속 섬유의 제조방법 및 이를 이용하여 제조된 금속 섬유
KR20110110643A (ko) * 2010-04-01 2011-10-07 경희대학교 산학협력단 전기방사에 이은 무전해 도금을 통한 전기 전도성 나노섬유 제조 방법
KR20130039648A (ko) * 2011-10-12 2013-04-22 고려대학교 산학협력단 전기 방사 장치
KR20130106673A (ko) * 2012-03-20 2013-09-30 고려대학교 산학협력단 전기 방사 및 정전기 스프레이 방식을 이용한 혼합 코팅 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090036600A (ko) * 2006-08-03 2009-04-14 바스프 에스이 기판으로의 금속층 도포 방법
KR20090050872A (ko) * 2007-11-16 2009-05-20 한양대학교 산학협력단 금속 섬유의 제조방법 및 이를 이용하여 제조된 금속 섬유
KR20110110643A (ko) * 2010-04-01 2011-10-07 경희대학교 산학협력단 전기방사에 이은 무전해 도금을 통한 전기 전도성 나노섬유 제조 방법
KR20130039648A (ko) * 2011-10-12 2013-04-22 고려대학교 산학협력단 전기 방사 장치
KR20130106673A (ko) * 2012-03-20 2013-09-30 고려대학교 산학협력단 전기 방사 및 정전기 스프레이 방식을 이용한 혼합 코팅 장치

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