WO2020111301A1 - Appareil d'électrofilature pour le filage uniforme de nanomatériaux polymères à l'aide de fils conducteurs - Google Patents

Appareil d'électrofilature pour le filage uniforme de nanomatériaux polymères à l'aide de fils conducteurs Download PDF

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Publication number
WO2020111301A1
WO2020111301A1 PCT/KR2018/014768 KR2018014768W WO2020111301A1 WO 2020111301 A1 WO2020111301 A1 WO 2020111301A1 KR 2018014768 W KR2018014768 W KR 2018014768W WO 2020111301 A1 WO2020111301 A1 WO 2020111301A1
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WO
WIPO (PCT)
Prior art keywords
conductor wire
spinning
conductor wires
conductor
collector
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Application number
PCT/KR2018/014768
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English (en)
Korean (ko)
Inventor
김홍건
정훈
이민상
정효남
곽이구
Original Assignee
전주대학교산학협력단
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Publication of WO2020111301A1 publication Critical patent/WO2020111301A1/fr

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    • 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
    • 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
    • D01D5/0015—Electro-spinning characterised by the initial state of the material
    • D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
    • 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
    • D01D5/0092—Electro-spinning characterised by the electro-spinning apparatus characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields

Definitions

  • the present invention relates to an electrospinning device for uniform spinning of polymer nanomaterials using conductor wires.
  • polymers using conductor wires capable of producing nanowebs with improved uniformity by finely controlling the arrangement of nanofibers during electrospinning. It relates to an electrospinning device for uniform radiation of nanomaterials.
  • Nano-fibers have characteristics such as an ultra-high specific surface area effect, a nano-size effect, and a super-molecular alignment effect, and thus are emerging as a next-generation high-performance high-tech new material. Nano-fibers are used in various technical fields such as electronics, environment, energy, biotechnology, and defense.
  • Methods of manufacturing nanofibers include drawing, template synthesis, phase separation, self assembly, and electrospinning.
  • an electrospinning method is generally used as a method for continuously producing nanofibers.
  • the electrospinning method is largely composed of three parts: a discharge part for supplying a spinning solution, a voltage generator for forming an electric field, and a collector for stacking nanofibers.
  • a discharge part for supplying a spinning solution
  • a voltage generator for forming an electric field
  • a collector for stacking nanofibers.
  • the electrospun nanofibrous web formed as described above is made of a fiber aggregate having a nano-range diameter to realize a soft and soft touch, and has the characteristics of ultra-thin ultra-light weight.
  • electrospinning nanofiber webs can be made of a variety of polymers and can control the properties of the final product by adjusting the diameter, surface pore structure and porosity cross-section structure of the fiber. , Environmental engineering and energy storage devices are being tried in various fields.
  • Patent document 0001 is that the electrospinning apparatus is disposed between a spinning nozzle having a plurality of needles that emit nanofibers, and a spinning nozzle arranged in a number of rows to inject air that is constantly temperature-humidified and directly into the nanofibers emitted from the spinning nozzle It consists of a constant temperature and humidity unit, a frame in which the spinning nozzle and the constant temperature and humidity unit are alternately fixed, and a collector disposed under the spinning nozzle and collecting nanofibers to form a nano web, thereby improving the quality of the nano web. It is possible to reduce the cost because there is no need to constant-humidify the entire chamber.
  • Patent Document 001 has a limitation in manufacturing a nanoweb having excellent uniformity, as the nanofiber has a disordered structure because the polymer solution is sprayed irregularly from the nozzle like a conventional electrospinning device.
  • the present invention for solving such a conventional problem is to precisely control the arrangement of the nanofibers during electrospinning to produce an electrospinning device for uniform spinning of polymer nanomaterials using a conductor wire capable of producing a nanoweb with improved uniformity. Its purpose is to provide.
  • It includes a spinning nozzle through which the spinning solution is discharged, a collector in which the spinning solution discharged from the spinning nozzle is collected as nanofibers, and a power supply for applying power to the spinning nozzle and the collector,
  • the collector is composed of a plurality of conductor wires arranged in a plurality of spaces at regular intervals on the back side of the base layer, and the base layer in which nanofibers are collected in a web state,
  • an electrospinning device for uniformly spinning polymer nanomaterials using a conductor wire, characterized in that a relay for selectively applying power applied from the power supply unit to the plurality of conductor wires is provided.
  • a control unit is provided to control the relay so that power is sequentially applied to the plurality of conductor wires.
  • the plurality of conductor wires may be arranged in a plurality in the transverse direction or in the longitudinal direction.
  • the plurality of conductor wires may be insulated from the transverse conductor wire portion and the transverse conductor wire portion. It is preferable that a plurality of longitudinal conductor wires are arranged in the longitudinal direction.
  • a non-conductive coating layer is formed on outer circumferential surfaces of the conductor wires constituting the transverse conductor wire portion and the longitudinal conductor wire portion.
  • the frame of the collector is fixed with a non-conductive material frame.
  • the electrospinning device for uniform spinning of polymer nanomaterials using the conductor wire of the present invention is formed by discharging a spinning solution through a spinning nozzle while selectively or sequentially applying power to a plurality of conductor wires. There is an effect that the nanofiber web is uniformly collected by uniformly collecting nanofibers.
  • FIG. 1 is a view schematically showing the configuration of an electrospinning apparatus for uniform spinning of a polymer nanomaterial using a conductor wire of the present invention.
  • FIG. 2 is a partially enlarged view schematically showing a part of the plurality of conductor wires on which the non-conductive layer is formed.
  • FIG. 3 is a block diagram schematically showing an electrospinning device for uniform spinning of a polymer nanomaterial using a conductor wire.
  • FIG. 1 is a view schematically showing the configuration of an electrospinning apparatus for uniform spinning of a polymer nanomaterial using a conductor wire of the present invention.
  • the electrospinning device for uniform spinning of polymer nanomaterials using the conductor wire of the present invention largely includes a radiation nozzle 10, a collector 20, a power supply device 30, and a relay 40, as shown in FIG.
  • the spinning nozzle 10 is for forming a nanofiber web by spinning a spinning solution made of a polymer nanomaterial by the high voltage electrostatic force to the collector 20, and the spinning nozzle is a general electrospinning, air electrospinning ( AES: Air-Electrospinning, electrospray, electrobrown spinning, centrifugal electrospinning, or flash-electrospinning can be used.
  • AES Air-Electrospinning, electrospray, electrobrown spinning, centrifugal electrospinning, or flash-electrospinning
  • the spinning nozzle 10 is supplied with a spinning solution by a mixing tag in which a polymer material and a solvent are mixed and stored, and the + pole of the power supply 30 is connected.
  • the collector 20 is connected to the-pole of the power supply 30, the spinning solution discharged from the spinning nozzle 10 is collected as nanofibers to form a nanofiber web.
  • the collector 20 includes a base layer 210 in which nanofibers are collected in a web state, and a plurality of conductor wires 230 arranged in a plurality at regular intervals on the back surface of the base layer 210.
  • the plurality of conductor wires 230 are connected to the -pole of the power supply device 30 through the relay 40, and selectively powered by the relay 40.
  • the plurality of conductor wires 230 may be arranged in a plurality in the transverse direction or in the longitudinal direction.
  • the plurality of conductor wires 230 are transverse conductor wire portions 232 arranged in a plurality in the transverse direction as shown in FIG. 1.
  • the transverse conductor wire portion 232 is made of a longitudinal conductor wire portion 234 arranged in a plurality in the longitudinal direction insulated from.
  • the plurality of conductor wires 230 is composed of a transverse conductor wire portion 232 and a longitudinal conductor wire portion 234, it is possible to obtain a lattice-shaped nanofiber web on the substrate layer 210, etc. It has the advantage of obtaining a uniformly dispersed nanofiber web as a whole.
  • FIG. 2 is a partially enlarged view schematically showing a part of the plurality of conductor wires 230 on which the non-conductive layer is formed.
  • a method of insulating the transverse conductor wire portion 232 and the longitudinal conductive wire portion is a sheet of non-conductive material (not shown) between the transverse conductor wire portion 232 and the longitudinal conductor wire portion 234.
  • a non-conductive coating layer 234a may be formed on the outer circumferential surface to insulate.
  • the rim of the collector 20 is fixed to a frame of a non-conductive material as shown in FIG. 1, whereby a nanofiber web is formed only on the base layer 210 of the collector.
  • FIG. 3 is a block diagram schematically showing an electrospinning device for uniform spinning of a polymer nanomaterial using a conductor wire.
  • the power supply 30 is for forming an electric field between the radiation nozzle 10 and the collet, and the + electrode of the power supply 30 is connected to the radiation nozzle 10 ,-The electrode is connected to the plurality of conductor wires 230 through the relay 40.
  • the power supply 30 usually applies a voltage in the range of 10 to 100kV.
  • the relay 40 is for selectively applying power applied from the power supply to the plurality of conductor wires 230.
  • the relay 40 is uniformly applied to the portion of the base layer 210 located on the front surface of the plurality of conductor wires 230 by sequentially applying the power applied from the power supply to the plurality of conductor wires 230 It is possible to capture the nanofibers, thereby obtaining a nanofiber web uniformly dispersed throughout.
  • sequentially applying power to the plurality of conductor wires 230 is,'Is the power supplied to the first conductor wire for a certain period of time ⁇ Is the first conductor wire cut off and the second conductor wire is powered for a certain period of time ⁇
  • Power is applied to the fourth conductor wire for a certain time at the same time as the third conductor wire is cut off. It refers to applying power in the order of'.
  • the plurality of conductor wires 230 is composed of a transverse conductor wire portion 232 and a longitudinal conductor wire portion 234, and the relay 40 constitutes the transverse conductor wire portion 232
  • the conductor wire 230 is sequentially applied from the upper side to the lower side to collect the nanofibrous webs having a plurality of horizontal lines on the base layer 210, and then the longitudinal conductor wire portion 234.
  • the advantage of obtaining a more uniformly dispersed nanofiber web is obtained. have.
  • the electrospinning device for uniform spinning of polymer nanomaterials using the conductor wire of the present invention is formed by discharging a spinning solution through a spinning nozzle while selectively or sequentially applying power to a plurality of conductor wires. There is an effect that the nanofiber web is uniformly collected by uniformly collecting nanofibers.

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

Abstract

La présente invention concerne un appareil d'électrofilature pour le filage uniforme de nanomatériaux polymères à l'aide de fils conducteurs, l'appareil comprenant : une buse de filage par laquelle une solution de filage est déchargée ; un collecteur par lequel la solution de filage déchargée par la buse de filage est collectée sous la forme de nanofibres ; et une partie d'alimentation électrique pour appliquer de l'énergie à la buse de filage et au collecteur. Le collecteur comprend une couche de substrat dans laquelle les nanofibres sont collectées dans un état de bande, et une pluralité de fils conducteurs disposés à intervalles réguliers sur la surface arrière de la couche de substrat, le collecteur comportant un relais pour sélectivement appliquer de l'énergie provenant de la partie d'alimentation électrique à la pluralité de fils conducteurs.
PCT/KR2018/014768 2018-11-26 2018-11-28 Appareil d'électrofilature pour le filage uniforme de nanomatériaux polymères à l'aide de fils conducteurs WO2020111301A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020180147624A KR102145670B1 (ko) 2018-10-31 2018-11-26 도체와이어를 이용한 고분자 나노물질의 균일방사를 위한 전기방사장치
KR10-2018-0147624 2018-11-26

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WO2020111301A1 true WO2020111301A1 (fr) 2020-06-04

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101787623A (zh) * 2010-03-05 2010-07-28 厦门大学 有序纳米纤维宏量制备装置
CN102162175A (zh) * 2011-01-05 2011-08-24 厦门大学 激光引导电纺直写装置
KR101650497B1 (ko) * 2015-03-16 2016-08-23 전북대학교산학협력단 정렬된 나노섬유 제조장치
KR101816031B1 (ko) * 2017-01-12 2018-01-08 전북대학교산학협력단 격자무늬 나노섬유 제조장치

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5798346B2 (ja) 2011-03-20 2015-10-21 国立大学法人信州大学 セパレーターの製造方法
KR101601169B1 (ko) 2013-07-02 2016-03-08 주식회사 아모그린텍 전기 방사장치
KR101701603B1 (ko) * 2015-04-09 2017-02-02 희성전자 주식회사 전기 방사 장치 및 이를 이용한 투명 전극의 제조 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101787623A (zh) * 2010-03-05 2010-07-28 厦门大学 有序纳米纤维宏量制备装置
CN102162175A (zh) * 2011-01-05 2011-08-24 厦门大学 激光引导电纺直写装置
KR101650497B1 (ko) * 2015-03-16 2016-08-23 전북대학교산학협력단 정렬된 나노섬유 제조장치
KR101816031B1 (ko) * 2017-01-12 2018-01-08 전북대학교산학협력단 격자무늬 나노섬유 제조장치

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BON KANG GU: "Direct fabrication of twisted nanofibers by electrospinning", APPLIED PHYSICS LETTERS, vol. 90, 29 June 2007 (2007-06-29), XP012095529, DOI: 10.1063/1.2753109 *

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KR102145670B1 (ko) 2020-08-19

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