WO2016163650A1 - Appareil d'électrofilature utilisant un champ électrique, et procédé de préparation d'électrode transparente l'utilisant - Google Patents

Appareil d'électrofilature utilisant un champ électrique, et procédé de préparation d'électrode transparente l'utilisant Download PDF

Info

Publication number
WO2016163650A1
WO2016163650A1 PCT/KR2016/002446 KR2016002446W WO2016163650A1 WO 2016163650 A1 WO2016163650 A1 WO 2016163650A1 KR 2016002446 W KR2016002446 W KR 2016002446W WO 2016163650 A1 WO2016163650 A1 WO 2016163650A1
Authority
WO
WIPO (PCT)
Prior art keywords
nanofibers
voltage
alignment direction
electric field
nanomaterial
Prior art date
Application number
PCT/KR2016/002446
Other languages
English (en)
Korean (ko)
Inventor
박장웅
현병관
지상윤
안병완
Original Assignee
희성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 희성전자 주식회사 filed Critical 희성전자 주식회사
Publication of WO2016163650A1 publication Critical patent/WO2016163650A1/fr

Links

Images

Classifications

    • 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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • 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

Definitions

  • the present invention relates to an electrospinning apparatus using an electric field and a method of manufacturing a transparent electrode using the same, and more particularly coaxially aligned by the electric field generated by the auxiliary electrode by providing an auxiliary electrode between the spinning nozzle and the integrated substrate.
  • the present invention relates to an electrospinning apparatus using an electric field capable of manufacturing a nanofiber having a double layer structure, and a method of manufacturing a transparent electrode using the same.
  • Display devices require a transparent electrode having transparency, and indium tin oxide (ITO) has been commonly used.
  • ITO indium tin oxide
  • such indium tin oxide is difficult to be applied to a flexible display device due to its low flexibility and stretchability.
  • a transparent electrode including another material for example, a transparent electrode using graphene or silver nanowires has been developed.
  • the results of the research to date is that the transparent electrode using graphene or silver nanowires has a complicated process, low reliability of the product, and high price.
  • An object of the present invention is to provide an electrospinning apparatus using an electric field and a method of manufacturing a transparent electrode using the same, which can produce nanofibers having a flexible, stretchable and directional coaxial bilayer structure in a simple and economical process. .
  • the electrospinning apparatus using the electric field according to the present invention the voltage is applied, the inner nozzle for emitting at least one of the nanomaterial and the polymer material, and formed to surround the inner nozzle and the other of the nanomaterial and the polymer material
  • a spinning nozzle for spinning a nanofiber comprising a coaxial bilayer between the nanomaterial layer formed of the nanomaterial and the polymer material layer formed of the polymer material, including an external nozzle that emits light;
  • a method of manufacturing a transparent electrode using an electrospinning apparatus includes: arranging a plurality of auxiliary electrodes between an integrated substrate and a spinning nozzle to surround nanofibers emitted from the spinning nozzle; Applying a voltage to the spinning nozzle, spinning a nanofiber comprising a coaxial bilayer between the nanomaterial layer formed of a nanomaterial and the polymer material layer formed of a polymer material from the spinning nozzle on the integrated substrate; Applying a predetermined voltage to the plurality of auxiliary electrodes to concentrate the nanofibers emitted from the spinning nozzle in a straight line by an electric field generated between the plurality of auxiliary electrodes; The voltage is periodically changed such that opposite voltages are applied to some of the auxiliary electrodes of the plurality of auxiliary electrodes that are opposite to each other, or voltages having different magnitudes are applied, and thus the electric field generated by the change of the voltage Forming the nanofibers concentrated in a straight line in a predetermined alignment direction; Removing the polymer material from the nanofibers
  • the nanofibers radiated from the spinning nozzle can be concentrated in the center of the centralized auxiliary electrode by disposing a concentrated auxiliary electrode between the integrated substrate and the spinning nozzle, the nanofibers having directivity are manufactured. Is easy.
  • the steering auxiliary electrode between the integrated substrate and the spinning nozzle and periodically applying a voltage to generate a voltage difference between the electrodes facing each other, the nanofibers emitted from the spinning nozzle can be aligned and moved in a predetermined alignment direction. Since it is possible, a transparent electrode made of nanofibers having directivity can be produced.
  • the transparent electrode using the nanofiber of a grid pattern can be manufactured, the surface roughness and density of a transparent electrode can be controlled precisely.
  • a transparent electrode having a grid pattern having flexibility or elasticity may be provided by a simple and economic process, and the flexible display device or the flexible display device may be easily implemented using the transparent electrode.
  • the process is very simple and economical advantages.
  • FIG. 1 is a view showing an electrospinning apparatus according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating a method of aligning nanofibers using the electrospinning apparatus shown in FIG. 1.
  • FIG. 3 is an enlarged cross-sectional view of the spinning nozzle illustrated in FIG. 1.
  • FIG. 4 is a perspective view showing a nanofiber made of a coaxial bilayer by the electrospinning apparatus shown in FIG. 1.
  • FIG. 5 is a flowchart illustrating a method of manufacturing a transparent electrode using an electrospinning apparatus according to an embodiment of the present invention.
  • FIG. 6 is a view showing an electrospinning apparatus according to another embodiment of the present invention.
  • FIG. 1 is a view showing an electrospinning apparatus according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating a method of aligning nanofibers using the electrospinning apparatus shown in FIG. 1.
  • 3 is an enlarged cross-sectional view of the spinning nozzle illustrated in FIG. 1.
  • 4 is a perspective view showing a nanofiber made of a coaxial bilayer by the electrospinning apparatus shown in FIG. 1.
  • an electrospinning apparatus includes a spinning nozzle 10, an integrated substrate 20, an electric field generating module, and a power supply 70.
  • the spinning nozzle 10 is connected to a spinning solution tank 40 and a syringe pump (not shown).
  • the spinning solution tank 40 stores a spinning solution for spinning.
  • the spinning solution includes a nanomaterial and a polymer material.
  • the spinning solution tank 40 includes a nanomaterial tank 41 including the nanomaterial having conductivity, and a polymer material tank 42 including the polymer material.
  • the nanomaterial and the nanomaterial layer 51 formed from the nanomaterial may be formed of a material having various nano shapes, for example, nanoparticles, nanowires, nanotubes, and nanoparticles. It may include at least one selected from the group consisting of a rod, a nanowall, a nano belt, a nano belt, and a nano ring.
  • the nanomaterial and the nanomaterial layer 51 may include, for example, nanoparticles such as copper, silver, gold, copper oxide, and cobalt.
  • the nanomaterial and the nanomaterial layer 51 may include, for example, nanowires such as copper nanowires, silver nanowires, gold nanowires, and cobalt nanowires.
  • the nanomaterial and the nanomaterial layer 51 may be composed of a nanomaterial solution in which the above-described nanomaterial is dissolved in a soluble solvent such as methanol, acetone, detrahydrofuran, toluene, or dimethylformamide.
  • the soluble solvent may include alkanes such as hexane, aromatics such as toluene, ethers such as diethyl ether, and chloroform.
  • Alkyl halides such as Alkyl halides, Esters, Aldehydes, Ketones, Amines, Alcohols, Amides, Carboxylates ( Carboxylic acids), and water.
  • the nanomaterial solution may be formed using, for example, the organic solvent described above.
  • the nanomaterial is exemplary, and the technical spirit of the present invention is not limited thereto.
  • the polymer material and the polymer material layer 52 formed from the polymer material are polymer solutions containing various polymer materials.
  • the polymer material is polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), polymethylmethacrylate (PMMA), polydimethylsiloxane (PDMS), polyurethane, polyetherurethane, cellulose acetate, cellulose acetate butyl Latex, cellulose acetate propionate, polymethylacrylate (PMA), polyvinyl acetate (PVAc), polyacrylonitrile (PAN), polyperfuryl alcohol (PPFA), polystyrene, polyethylene oxide (PEO), polypropylene oxide (PPO), polycarbonate (PC), polyvinyl chloride (PVC), polycaprolactone, polyvinyl fluoride, and at least one selected from the group consisting of polyamide.
  • PVP polyvinylpyrrolidone
  • PVA polyvinyl alcohol
  • PMMA polymethylmethacryl
  • the polymer material and the polymer material layer 52 may include a copolymer of the above-described material, for example, a polyurethane copolymer, a polyacryl copolymer, a polyvinylacetate copolymer, a polystyrene copolymer, It may include at least one selected from the group consisting of a polyethylene oxide copolymer, a polypropylene oxide copolymer, and a polyvinylidene fluoride copolymer.
  • the polymer material and the polymer material layer 52 may be composed of a polymer solution in which the polymer material described above is dissolved in a soluble solvent such as methanol, acetone, detrahydrofuran, toluene, or dimethylformamide.
  • the soluble solvent may include alkanes such as hexane, aromatics such as toluene, ethers such as diethyl ether, and chloroform.
  • Alkyl halides such as Alkyl halides, Esters, Aldehydes, Ketones, Amines, Alcohols, Amides, Carboxylates ( Carboxylic acids), and water.
  • a polymer solution is exemplary, and the technical idea of the present invention is not limited thereto.
  • the spinning nozzle 10 receives the nanomaterial and the polymer material from the spinning solution tank 10 and spins through a spinning nozzle tip located at an end thereof.
  • the spinning nozzle 10 may include an inner nozzle 11 that radiates at least one of the nanomaterial and the polymer material, and is formed to surround the inner nozzle 11 to transfer another one of the nanomaterial and the polymer material.
  • the inner nozzle 11 is connected to the nanomaterial tank 41 to radiate the nanomaterial supplied from the nanomaterial tank 41
  • the outer nozzle 12 is the polymer material.
  • the spinning nozzle 10 has a coaxial double cylinder structure, and the spinning nozzle 10 can be spun together without mixing the nanomaterial and the polymer material. Accordingly, the spinning nozzle 10 may radiate the nanomaterial layer 51 formed of the nanomaterial and the polymer material layer 52 formed of the polymer material to form a coaxial double layer structure.
  • the syringe pump (not shown) is a pump that pressurizes the spinning solution filled in the spinning nozzle 10.
  • the spinning nozzle 10 is formed in the shape of a syringe, the syringe pump (not shown) will be described by way of example to pressurize the piston of the syringe.
  • the present invention is not limited thereto, and a pump (not shown) is built in the spinning solution tank 40 to pressurize the spinning solution in the spinning solution tank 40, and thus the spinning nozzle 10 may be discharged from the spinning solution tank 40. It is also possible to provide the spinning solution in).
  • the integrated substrate 20 is a substrate on which the nanofibers 50 formed having the coaxial bilayer structure of the nanomaterial layer 51 and the polymer material layer 52 radiated from the spinning nozzle 10 are integrated.
  • the integrated substrate 20 has a flat plate shape, but the present invention is not limited thereto, and the integrated substrate 20 may have a plate shape, a drum shape, a parallel rod shape, an intersecting rod shape, or a grid shape.
  • the integrated substrate 20 is located below the spinning nozzle 10 and is a non-conductive substrate.
  • the integrated substrate 20 is described as an example of a plate-shaped substrate, but is not limited thereto, and a free standing substrate that does not support the lower side of the integration target may be used, and the free standing substrate may be used.
  • the center portion In the case of the center portion is penetrated frame shape or the center portion is perforated it is also possible to form a horseshoe shape (outer edge is not connected).
  • the center portion may have a polygonal shape with the outer border connected thereto or the center portion may have a polygonal shape with the outer border connected thereto.
  • the nanofibers radiated and aligned on the integrated substrate when the free standing substrate is used further include a process of separating from the integrated substrate and transferring to a separate substrate.
  • An integrated electrode 21 is installed below the integrated substrate 20.
  • the integrated electrode 21 has a voltage opposite to that of the radiation nozzle 10 or is grounded to generate a voltage difference between the radiation nozzle 10 and to form an electric field.
  • the power supply unit 70 applies a voltage to the spinning nozzle 10.
  • the integrated electrode 21 is grounded so that a voltage difference with the radiation nozzle 10 occurs.
  • about 11.8 kV is applied to the spinning nozzle 10, and the integrated electrode 21 will be described with an example of having a ground voltage, for example, a voltage of 0V.
  • the voltage is a direct current (DC), for example, it is also possible to use alternating current (AC).
  • DC direct current
  • AC alternating current
  • the radiation nozzle 10 and the ground electrode 21 are controlled to have opposite voltages to each other.
  • the electric field generating module applies a voltage to the plurality of auxiliary electrodes 60 and the plurality of auxiliary electrodes 60 disposed between the radiation nozzle 10 and the integrated substrate 20 to generate an electric field. It includes an auxiliary electrode power supply.
  • the plurality of auxiliary electrodes 60 are formed to form one ring shape.
  • the plurality of auxiliary electrodes 60 are made of four auxiliary electrodes, for example.
  • the present invention is not limited thereto, and the number of the plurality of auxiliary electrodes 60 may be set in proportion to the alignment direction of the nanofibers.
  • the four auxiliary electrodes 60 may be formed in one ring shape, and may be spaced apart from each other by a predetermined interval, and different voltages may be applied to the four auxiliary electrodes 60.
  • the plurality of electrodes 60 When the preset voltage is applied from the auxiliary electrode power supply, the plurality of electrodes 60 is used as a concentrated electrode for concentrating the nanofibers in a straight line shape, and when the voltage is periodically changed from the auxiliary electrode power supply, It can be used as a control electrode for aligning the nanofibers in a predetermined alignment direction.
  • a voltage applied to the plurality of electrodes 60 may be applied to a voltage similar to the voltage applied to the radiation nozzle 10. In the present embodiment, for example, about 11.8 kV voltage is applied to the spinning nozzle 10, so that about 11 kV is also applied to the plurality of electrodes 60 when used as the concentrated electrode. .
  • a part of the plurality of electrodes 60 is applied or grounded opposite to the voltage applied to the spinning nozzle 10.
  • a ground voltage for example, a voltage of 0 V is applied to at least some of the plurality of electrodes 60 when used as the steering electrode.
  • the plurality of electrodes 60 serve as both the concentrated electrode and the steering electrode, but the present disclosure is not limited thereto, and the plurality of electrodes 60 may include: It is also possible to include only one of the concentrated electrode and the steering electrode, it is also possible that the concentrated electrode and the steering electrode is provided separately.
  • a movement mechanism for moving the integrated substrate 20 in the alignment direction may be installed.
  • the plurality of electrodes 60 may include a pair of first and second pilot auxiliary electrodes 61 and 62 arranged to be spaced apart from each other in a predetermined first alignment direction X of the nanofiber 50. And a pair of third and fourth pilot auxiliary electrodes 63 and 64 disposed to be spaced apart from each other by a predetermined distance in a second alignment direction Z crossing the first alignment direction X at a predetermined angle. .
  • the first, second, three, and four pilot auxiliary electrodes 61, 62, 63, and 64 are arranged to be spaced apart from each other by a predetermined distance to form one ring shape.
  • the set angle is described as an example of 90 degrees.
  • the auxiliary electrode power supply unit may include four first, second, third and fourth power supply units for applying voltages to the first, second, third, and fourth pilot electrodes 61, 62, 63, and 64, respectively.
  • An example will be described as including 71, 72, 73 and 74. That is, a first power supply unit 71 for applying a voltage to the first control auxiliary electrode 61, a second power supply unit 72 for applying a voltage to the second control auxiliary electrode 62, and the second power supply unit 72.
  • a third power supply unit 73 for applying a voltage to the three pilot control electrodes 63 and a fourth power supply 74 for applying a voltage to the fourth control auxiliary electrodes 64.
  • the voltage applied from the auxiliary electrode power supply unit is alternating current (AC).
  • FIG. 5 is a flowchart illustrating a method of manufacturing a transparent electrode using an electrospinning apparatus according to an embodiment of the present invention.
  • a plurality of auxiliary electrodes 60 are disposed between the integrated substrate 20 and the radiation nozzle 10 (S11).
  • the four first, second, third, and four pilot auxiliary electrodes 61, 62, 63, and 64 are disposed, for example.
  • the first, second, three, and four pilot auxiliary electrodes 61, 62, 63, and 64 are arranged to form a ring shape with a predetermined distance from each other.
  • the first, second, third, and fourth pilot electrodes 61, 62, 63, and 64 have a circular or elliptical ring shape
  • the first, second, third, and fourth pilot electrodes may concentrate the nanofibers in the center of the ring shape.
  • the shape of the first, second, third and fourth pilot auxiliary electrodes 61, 62, 63, and 64 is not limited to a ring shape, and surrounds the nanofibers emitted from the spinning nozzle 10.
  • the number of the auxiliary electrodes 60 is not limited to four, and may be set in proportion to the alignment direction of the nanofibers 50.
  • the nanomaterial and the polymer material are radiated together from the spinning nozzle 10.
  • the voltage may vary depending on the type of the spinning solution, the type of the integrated substrate 20, the processing environment, and the like, and may range from about 100V to 30000V. In the present embodiment, it will be described with an example that a voltage of about 11.8 kV is applied to the spinning nozzle 10.
  • the nanomaterial and the polymeric material may be spun simultaneously, and may have the same spinning length.
  • the polymer material in the outer nozzle 12 of the spinning nozzle 10 is radiated in a hollow cylindrical shape, and the nanomaterial in the inner nozzle 11 is discharged while being filled in the polymer material, and is coaxially discharged.
  • the nanofibers 50 having a double layer structure are solidified. That is, referring to FIG. 4A, the nanofibers 50 radiated from the spinning nozzle 10 have a coaxial double layer structure composed of the polymer material layer 52 and the nanomaterial layer 51. At this time, the nanomaterial and the polymer material are not mixed with each other. It is preferable that the spinning speed of the polymer material is equal to or greater than the spinning speed of the nanomaterial.
  • the polymeric material and the nanomaterial should be at the same or similar level of vapor pressure.
  • the viscosity of the polymer material should be equal to or greater than the viscosity of the nanomaterial.
  • a predetermined set voltage is applied to the first, second, third, and fourth pilot electrodes 61, 62, 63, and 64.
  • the set voltage is a voltage similar to the voltage applied to the radiation nozzle 10, and applied to the first, second, third, and four pilot auxiliary electrodes 61, 62, 63, 64.
  • the voltages to be set are equal in magnitude to each other.
  • first, second, third and fourth pilot auxiliary electrodes 61, 62, 63, and 64 May be concentrated and fixed to a center portion between the first, second, third and fourth pilot auxiliary electrodes 61, 62, 63, and 64.
  • the nanofibers 50 are not whipped or dispersed and are straight. It may be emitted in the form (S13).
  • the voltages applied to the first, second, third, and fourth pilot auxiliary electrodes 61, 62, 63, and 64 are periodically changed to form the nanofibers. Align 50 in the alignment direction.
  • the change period of the voltage may be set in consideration of the alignment direction or length of the nanofiber 50.
  • S14 The greater the difference in the voltage applied to the first, second, third, and fourth pilot electrodes 61, 62, 63, and 64, the better the nanofiber 50 can move in the alignment direction. have.
  • the closer the distance between the first, second, third, and fourth pilot electrodes 61, 62, 63, and 64 the better the nanofiber 50 can move in the alignment direction.
  • the first pilot auxiliary electrode 61 and the second pilot auxiliary electrode 62 are disposed.
  • the voltage of is changed periodically. That is, when voltages opposite to each other or voltages of different magnitudes are applied to the first and second control auxiliary electrodes 61 and 62 disposed to face each other, a voltage difference is generated.
  • the nanofibers 50 may be moved and aligned in the first alignment direction X by the electric field generated by the electric field.
  • a voltage having a magnitude similar to that of the radiation nozzle 10 is applied to one of the first pilot auxiliary electrode 61 and the second pilot auxiliary electrode 62, and a ground voltage is applied to the other. For example, when a voltage of 0 V is applied, the nanofibers 50 move toward the ground voltage.
  • the positively charged nanofibers 50 move in a direction toward the first pilot auxiliary electrode 61. do.
  • the nanofibers 50 are aligned while being moved in the direction (-X) toward the first pilot auxiliary electrode 61.
  • the second fibers are aligned in the first alignment direction X. While moving in the direction Z, the second alignment direction Z may be formed in a plurality of rows. Meanwhile, referring to FIG.
  • the positively charged nanofibers 50 move in the direction toward the second control auxiliary electrode 62. do. Accordingly, the nanofibers 50 are aligned while being moved in the direction X toward the second pilot auxiliary electrode 62.
  • the voltage difference between the third control auxiliary electrode 63 and the fourth control auxiliary electrode 64 may be controlled to move in the second alignment direction Z.
  • the third controlled auxiliary electrode 63 and the fourth controlled auxiliary electrode 64 are formed.
  • the voltage of) is changed periodically. That is, opposite voltages are applied or different voltages are generated so as to generate a voltage difference between the third control auxiliary electrode 63 and the fourth control auxiliary electrode 64 disposed to face each other in the second alignment direction Z.
  • a voltage having a magnitude is applied, the nanofibers 50 may be aligned while moving in the second alignment direction Z by the electric field generated by the voltage difference.
  • a voltage having a magnitude similar to that of the radiation nozzle 10 is applied to any one of the third controlled auxiliary electrode 63 and the fourth controlled auxiliary electrode 64, and the other is a ground voltage, for example.
  • the nanofibers 50 move to the ground voltage side.
  • the positively charged nanofibers 50 may move in a direction toward the third auxiliary electrode 63. have. Therefore, the nanofibers 50 may be aligned while moving in the direction (-Z) toward the third pilot auxiliary electrode 63.
  • the nanofibers 50 aligned in the second alignment direction Z may be formed.
  • the plurality of columns may be formed in the first alignment direction X while moving in the first alignment direction X by a predetermined distance.
  • the nanofibers 50 when the ground voltage is applied to the fourth control auxiliary electrode 64, the positively charged nanofibers 50 in the direction toward the fourth control auxiliary electrode 64 Move. Accordingly, the nanofibers 50 may be aligned while moving in the direction Z toward the fourth pilot auxiliary electrode 64. In this case, when the difference in voltage between the first pilot auxiliary electrode 61 and the second pilot auxiliary electrode 62 is controlled, the nanofibers 50 aligned in the second alignment direction Z may be formed. The plurality of columns may be formed in the first alignment direction X while moving in the first alignment direction X by a predetermined distance.
  • annealing is performed.
  • the annealing may increase the bonding force between the nanomaterials in the nanomaterial layer 51.
  • the annealing may be performed at a temperature range in which the integrated substrate 20 is not damaged.
  • the annealing may, for example, be carried out at a temperature in the range of about 20 ° C to about 500 ° C, for example at a temperature in the range of about 20 ° C to about 300 ° C.
  • the annealing may be performed in an air atmosphere, an inert atmosphere including argon gas or nitrogen gas, or a reducing atmosphere including hydrogen gas.
  • the annealing is optional and may be omitted.
  • the polymer material layer 52 is removed to form a transparent electrode composed of only the nanomaterial layer 51.
  • S16 (S17)
  • the polymer material layer 52 is removed using an organic solvent. can do. Referring to Figure 4, it can be confirmed by comparing before and after the polymer material layer is removed.
  • the organic solvent may include any kind of solvent capable of dissolving the polymer material layer 52.
  • the organic solvent is an alkanes such as hexane, aromatics such as toluene, ethers such as diethyl ether, alkyl halides such as chloroform, and the like. Alkyl halides, esters, aldehydes, aldehydes, ketones, amines, alcohols, alcohols, amides, carboxylic acids, And various materials such as water.
  • the organic solvent may be, for example, acetone, fluoroalkanes, pentanes, hexane, 2,2,4-triketylpentane, or decane.
  • the present invention is not limited thereto, and the polymer material layer 52 may be removed using reactive ion etching.
  • the nanofiber 50 has the polymer material layer 52 surrounding the outside.
  • FIG. 4B when the polymer material layer 52 is removed, only the nanomaterial layer 51 remains, and the transparent electrode is made of the nanomaterial layer 51 only.
  • the nanomaterial layer 51 is rod-shaped.
  • the transparent electrode may further include a transparent conductive layer (not shown) formed on the nanomaterial layer 51.
  • the transparent conductive layer may include a transparent material and may include a conductive material.
  • the transparent conductive layer can reduce the electrical resistance of the transparent electrode and can implement an electrode that applies more current more uniformly.
  • the transparent conductive layer may cover the transparent electrode, and may block the nanomaterial layer 51 from external air to prevent oxidation.
  • the transparent conductive layer may include a two-dimensional nanomaterial layer having conductivity.
  • the two-dimensional nanomaterial layer may be composed of two-dimensional nanomaterials, and may include, for example, carbon nanomaterials such as graphene, graphite, or carbon nanotubes. The meaning of the two-dimensional nanomaterial means that the nanomaterial has a planar shape, for example, may have a shape such as a sheet.
  • the present invention is not limited thereto, and the nanofiber 50 may be spun so that the nanomaterial layer formed from the nanomaterial is surrounded by the outer side of the polymer material layer, and the hollow nanomaterial is removed when the polymer material layer is removed. It is also possible to form a transparent electrode made of a layer.
  • FIG. 6 is a view showing an electrospinning apparatus according to another embodiment of the present invention.
  • the plurality of auxiliary electrodes of the electrospinning apparatus is different from the above embodiment in that the auxiliary auxiliary electrode 65 and the steering auxiliary electrode 60 are separately provided. It demonstrates in detail centering on a different point.
  • the concentrated auxiliary electrode 65 is disposed to surround the nanofibers 50 emitted from the spinning nozzle 10, and a predetermined voltage is applied from the concentrated auxiliary electrode power supply 75.
  • the concentrated auxiliary electrode 65 is composed of one electrode having a ring shape.
  • the concentration auxiliary electrode 65 is applied with the same voltage as the spinning nozzle 10 to concentrate the nanofibers 50 to the center of the ring.
  • the steering auxiliary electrode 60 is disposed at a position spaced apart from the concentrated auxiliary electrode 65 by a predetermined interval in the radial direction (-Y) of the nanofiber 50.
  • the steering auxiliary electrode 60 includes four first, two, three, four pilot auxiliary electrodes 61, 62, 63, and 64.
  • the four first, second, Three, four pilot auxiliary electrodes 61, 62, 63, 64 are spaced apart from each other by a predetermined interval to form a ring shape.
  • the nanofibers ( 50 may be moved in the first alignment direction X or the second alignment direction Z.
  • FIG. 1 When a pair of electrodes facing each other among the four first, second, third, and four pilot auxiliary electrodes 61, 62, 63, and 64 are applied with a voltage to generate a voltage difference, the nanofibers ( 50 may be moved in the first alignment direction X or the second alignment direction Z.
  • FIG. 1 When a pair of electrodes facing each other among the four first, second, third, and four pilot auxiliary electrodes 61, 62, 63, and 64 are applied with a voltage to generate a voltage difference, the nanofibers ( 50 may be moved in the first alignment direction X or the second alignment direction Z.
  • a transparent electrode made of nanofibers or nanofibers having directivity can be manufactured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

Un appareil d'électrofilature, selon la présente invention, permet à des nanofibres, qui sont pulvérisées depuis une buse de filature, d'être concentrées sur la partie centrale d'une électrode de focalisation auxiliaire au moyen de la disposition de l'électrode de focalisation auxiliaire entre un substrat intégré et la buse de filature, et permet ainsi la préparation facile des nanofibres ayant une directivité. De plus, la présente invention permet aux nanofibres, qui sont pulvérisées depuis la buse de filature, d'être alignées et déplacées dans une direction d'alignement prédéterminée au moyen de la disposition d'une électrode de direction auxiliaire entre le substrat intégré et la buse de filature, et au moyen du changement et de l'application périodiques d'une tension de telle sorte qu'une différence de tension se produit entre des électrodes qui se font mutuellement face, et permet ainsi la préparation d'une électrode transparente qui est formée à partir de nanofibres ayant une directivité.
PCT/KR2016/002446 2015-04-09 2016-03-11 Appareil d'électrofilature utilisant un champ électrique, et procédé de préparation d'électrode transparente l'utilisant WO2016163650A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2015-0050246 2015-04-09
KR1020150050246A KR101676760B1 (ko) 2015-04-09 2015-04-09 전기장을 이용한 전기 방사 장치 및 이를 이용한 투명 전극의 제조 방법

Publications (1)

Publication Number Publication Date
WO2016163650A1 true WO2016163650A1 (fr) 2016-10-13

Family

ID=57073288

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2016/002446 WO2016163650A1 (fr) 2015-04-09 2016-03-11 Appareil d'électrofilature utilisant un champ électrique, et procédé de préparation d'électrode transparente l'utilisant

Country Status (2)

Country Link
KR (1) KR101676760B1 (fr)
WO (1) WO2016163650A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113423878A (zh) * 2019-02-14 2021-09-21 Uab研究基金会 用于生成纤维的交变场电极系统和方法
CN114262944A (zh) * 2021-12-31 2022-04-01 江苏海栋化纤有限公司 一种静电式纺丝机
CN115094572A (zh) * 2022-06-29 2022-09-23 中国人民解放军海军工程大学 一种连续包覆碳纳米管的热塑型聚氨酯纤维膜及其制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101847478B1 (ko) * 2017-03-31 2018-04-10 안동대학교 산학협력단 절연층 위에 나노섬유를 방사하는 전기방사장치 및 그 제조방법
CN114293268B (zh) * 2022-01-10 2022-11-11 东北农业大学 一种封装鼠李糖乳杆菌1.0320核-壳纤维及其制备方法与应用

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100017128A (ko) * 2007-04-20 2010-02-16 캄브리오스 테크놀로지즈 코포레이션 복합 투명 도전체 및 그 제조 방법
KR20110062216A (ko) * 2009-12-03 2011-06-10 한국전자통신연구원 전기 방사 장치 및 이를 이용한 정렬된 나노 섬유 제조방법
US20110187798A1 (en) * 2007-07-19 2011-08-04 Rogers John A High Resolution Electrohydrodynamic Jet Printing for Manufacturing Systems
KR20120036268A (ko) * 2010-10-07 2012-04-17 포항공과대학교 산학협력단 전기장 보조 로보틱 노즐 프린터 및 이를 이용한 정렬된 유기 와이어 패턴의 제조 방법
KR20130044464A (ko) * 2011-10-24 2013-05-03 한양대학교 에리카산학협력단 은 나노섬유의 제조방법 및 그 방법에 의해 제조된 은 나노섬유

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101197986B1 (ko) 2009-12-24 2012-11-05 서울대학교산학협력단 전기 방사-기상 증착 중합법을 이용한 폴리비닐알콜/폴리페돗 동축 나노섬유와 폴리페돗 나노튜브의 대량 생산 및 센서로서의 응용

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100017128A (ko) * 2007-04-20 2010-02-16 캄브리오스 테크놀로지즈 코포레이션 복합 투명 도전체 및 그 제조 방법
US20110187798A1 (en) * 2007-07-19 2011-08-04 Rogers John A High Resolution Electrohydrodynamic Jet Printing for Manufacturing Systems
KR20110062216A (ko) * 2009-12-03 2011-06-10 한국전자통신연구원 전기 방사 장치 및 이를 이용한 정렬된 나노 섬유 제조방법
KR20120036268A (ko) * 2010-10-07 2012-04-17 포항공과대학교 산학협력단 전기장 보조 로보틱 노즐 프린터 및 이를 이용한 정렬된 유기 와이어 패턴의 제조 방법
KR20130044464A (ko) * 2011-10-24 2013-05-03 한양대학교 에리카산학협력단 은 나노섬유의 제조방법 및 그 방법에 의해 제조된 은 나노섬유

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113423878A (zh) * 2019-02-14 2021-09-21 Uab研究基金会 用于生成纤维的交变场电极系统和方法
EP3924541A4 (fr) * 2019-02-14 2023-05-10 The UAB Research Foundation Système d'électrode à champ alternatif et procédé de génération de fibres
CN113423878B (zh) * 2019-02-14 2024-06-07 Uab研究基金会 用于生成纤维的交变场电极系统和方法
CN114262944A (zh) * 2021-12-31 2022-04-01 江苏海栋化纤有限公司 一种静电式纺丝机
CN115094572A (zh) * 2022-06-29 2022-09-23 中国人民解放军海军工程大学 一种连续包覆碳纳米管的热塑型聚氨酯纤维膜及其制备方法

Also Published As

Publication number Publication date
KR101676760B1 (ko) 2016-11-16
KR20160120966A (ko) 2016-10-19

Similar Documents

Publication Publication Date Title
WO2016163651A1 (fr) Appareil d'électrofilature utilisant un collecteur à tambour et procédé de préparation d'électrode transparente l'utilisant
WO2016163650A1 (fr) Appareil d'électrofilature utilisant un champ électrique, et procédé de préparation d'électrode transparente l'utilisant
Lin et al. Facile and efficient patterning method for silver nanowires and its application to stretchable electroluminescent displays
Zhou et al. Stretchable high-permittivity nanocomposites for epidermal alternating-current electroluminescent displays
Luo et al. Direct-write, self-aligned electrospinning on paper for controllable fabrication of three-dimensional structures
Gao et al. Flexible tactile sensor using the reversible deformation of poly (3-hexylthiophene) nanofiber assemblies
Cao et al. Ultra‐robust stretchable electrode for e‐skin: in situ assembly using a nanofiber scaffold and liquid metal to mimic water‐to‐net interaction
CN102470570B (zh) 多功能性导电性/透明的/挠性膜的制造
CN101586288B (zh) 阵列多喷头静电纺丝设备
Onggar et al. Techniques and processes for the realization of electrically conducting textile materials from intrinsically conducting polymers and their application potential
US8030837B2 (en) Field emission cathode device and display using the same
KR101701603B1 (ko) 전기 방사 장치 및 이를 이용한 투명 전극의 제조 방법
CN101538746A (zh) 取向可控静电纺丝纳米聚合物纤维的制备原理及新方法
Tong et al. A novel technique for the fabrication of 3D nanofibrous scaffolds using simultaneous positive voltage electrospinning and negative voltage electrospinning
Kwon et al. Novel concept for fabricating a flexible transparent electrode using the simple and scalable self-assembly of Ag nanowires
KR101701602B1 (ko) 전기장을 이용한 전기 방사 장치 및 이를 이용한 투명 전극의 제조 방법
CN106637679A (zh) 微纳米纤维阵列及其制备方法和设备
CN104358029A (zh) 一种利用静电纺丝制备微纳波纹结构的方法及装置
KR101701601B1 (ko) 자기장을 이용한 전기 방사 장치 및 이를 이용한 투명 전극의 제조 방법
Kim et al. Microstructures in all-inkjet-printed textile capacitors with bilayer interfaces of polymer dielectrics and metal–organic decomposition silver electrodes
Huang et al. Fabrication of nano-branched coaxial polyaniline/polyvinylidene fluoride fibers via electrospinning for strain sensor
Cong et al. Electrohydrodynamic printing for demanding devices: A review of processing and applications
WO2013168956A1 (fr) Composite de nanotubes de carbone comprenant des micropilliers ayant des formes verticales, procédé de fabrication du composite de nanotubes de carbone, et capteur tactile comprenant le composite de nanotubes de carbone
Wang et al. Antibacterial Halloysite‐Modified Chitosan/Polyvinylpyrrolidone Nanofibers for Ultrasensitive Self‐Powered Motion Monitoring
CN103183886A (zh) 碳纳米管复合膜的制备方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16776753

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16776753

Country of ref document: EP

Kind code of ref document: A1