WO2018203182A1 - Système d'électrofilage de cartouche - Google Patents

Système d'électrofilage de cartouche Download PDF

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Publication number
WO2018203182A1
WO2018203182A1 PCT/IB2018/052829 IB2018052829W WO2018203182A1 WO 2018203182 A1 WO2018203182 A1 WO 2018203182A1 IB 2018052829 W IB2018052829 W IB 2018052829W WO 2018203182 A1 WO2018203182 A1 WO 2018203182A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductive wire
spinning solution
spool
cartridge
collector
Prior art date
Application number
PCT/IB2018/052829
Other languages
English (en)
Inventor
Nader Naderi
Reza FARIDI MAJIDI
Saman NASHEROLAHKAM
Xaniar ESMAILZADEH GAMESHGOLI
Ali GHEIBI
Original Assignee
Fanavaran Nano-Meghyas Company (Ltd.)
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 Fanavaran Nano-Meghyas Company (Ltd.) filed Critical Fanavaran Nano-Meghyas Company (Ltd.)
Publication of WO2018203182A1 publication Critical patent/WO2018203182A1/fr

Links

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
    • 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
    • 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
    • D01D5/0038—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion the fibre formed by solvent evaporation, i.e. dry electro-spinning

Definitions

  • the present disclosure relates to methods for production of nanofibers, and particularly to electrospining systems and apparatuses.
  • Electrospinning is a straightforward and flexible technique for producing nanofibers from spinning solutions or melts via an electric field created by a voltage differential between a spinning electrode and a collecting electrode. Electrospinning has many industrial and medical applications. For example, electrospinning is used in producing biological membranes, such as substrates for immobilized enzymes and catalyst systems. As another example, electrospinning is used in the production of wound dressing materials, artificial blood vessels, aerosol filters, and clothing membranes for protection against environmental elements and battlefield threats. Electrospinning, in comparison with other methods for producing nanofibers, can be relatively more cost effective and feasible.
  • electrospinning has also been associated with some challenges, such as low production speed, lower production throughput for small fiber sizes, and fouling of the nozzles in electrospinning methods that utilize nozzles. These kinds of challenges may hinder the use of this method for the mass production of nanofibers for laboratory and industrial applications. As a possible solution, the number of nozzles may be enhanced and in this case new challenges must be faced, such as electric field interference between nozzles, electric arc, high energy consumption, difficult maintenance, and complex control.
  • Nozzle-less electrospinning systems are another example of modification to electrospinning technologies to address low production speed and lower production throughput for small fiber sizes.
  • a nozzle-less electrospinning system in its simplest realization may include a rotating drum dipped into a bath of a spinning solution, where the drum functions as a rotating electrode. A thin layer of the spinning solution is carried by the drum surface and is exposed to a high voltage electrical field. When the voltage exceeds a critical value, a number of electrospinning jets are generated, which are distributed over the electrode surface.
  • nozzle-less electrospinning systems allow for higher nanofiber production rates via a cost-effective method in comparison with nozzle-based electrospinning systems, they still face challenges, such as large extent spinning solution waste, variable concentration of the spinning solution during the electrospinning process, and indirect connection of high voltage power supply to the rotating electrodes.
  • the present disclosure is directed to a cartridge electrospinning system.
  • the cartridge electrospinning system may include a conductive wire connected to a first pole of a high voltage power supply and a collector connected to a second pole of the high voltage power supply, such that an electrical filed may be created between the conductive wire and the collector.
  • the cartridge electrospinning system may further include a cartridge feeding mechanism that may be movable along an entire length of the conductive wire to smear the entire length of the conductive wire with a spinning solution and thereby forming small droplets of the spinning solution on the conductive wire.
  • the cartridge feeding mechanism may include an enclosed reservoir partially filled with the spinning solution and encompassing a portion of the conductive wire.
  • the cartridge feeding mechanism may further include a spool-shaped feeding roller with a groove thereon, which may be rotatable inside the enclosed reservoir and partially immersed inside the spinning solution.
  • the conductive wire may pass through a top portion of the spool-shaped feeding roller within the groove thereof.
  • the cartridge feeding mechanism may further include an actuator that may be coupled with the spool-shaped feeding roller.
  • the actuator may be configured to drive a rotational movement of the spool-shaped feeding roller.
  • the actuator may be configured to drive a rotational movement of the spool-shaped feeding roller with a rotational speed in a range of 1 to 60 rpm.
  • the cartridge feeding mechanism may be mounted on a mounting member.
  • the mounting member may be coupled with a linear actuator and the linear actuator may be configured to drive a back and forth movement of the mounting member along the entire length of the conductive wire.
  • the linear actuator may be configured to drive a back and forth movement of the mounting member along the entire length of the conductive wire with a speed in a range of 1 to 90 cm/s.
  • the spool-shaped feeding roller may have an outer diameter in a range of 3 to 10 cm.
  • the groove of the spool-shaped feeding roller may have a width in a range of 2 to 5 mm and a depth in a range of 4 to 8 mm.
  • a vertical distance between the conductive wire and the collector may be adjustable in a range of 60 to 200 mm.
  • the present disclosure is directed to a method for producing nanofibrous materials.
  • the method may include connecting a conductive wire to a first pole of a high voltage power supply, connecting a collector to a second pole of the high voltage power supply thereby establishing an electrical field between the conductive wire and the collector, and continuously smearing or otherwise coating an entire length of the conductive wire with a spinning solution by associating a portion of the conductive wire with a groove of a spool-shaped roller partially immersed and rotatable in the spinning solution, the portion of the conductive wire associated with the groove being in contact with the spinning solution carried around in the groove, and moving the spool-shaped roller along the entire length of the conductive wire.
  • the method for producing nanofibrous materials may further include storing the spinning solution within an enclosed reservoir.
  • the spool- shaped roller may be disposed with the enclosed reservoir.
  • FIG. 1 illustrates a schematic of a cartridge electrospinning system, according to one or more implementations of the present disclosure
  • FIG. 2A illustrates a schematic of an implementation of a cartridge feeding mechanism, according to one or more implementations of the present disclosure
  • FIG. 2B illustrates a feeding roller, consistent with one or more implementations of the present disclosure
  • FIG. 2C illustrates a top-view of an implementation of a cartridge feeding mechanism, according to one or more implementations of the present disclosure
  • FIG. 3 illustrates a top-view of a cartridge feeding mechanism, according to one or more implementations of the present disclosure
  • FIG. 4 illustrates an implementation of a cartridge electrospinning apparatus
  • FIG. 5 illustrates another implementation of a cartridge electrospinning apparatus.
  • the systems and methods may include utilizing a conductive wire as a spray electrode.
  • the conductive wire may be connected to high voltage power source and an electrical field may be created between the conductive wire and a collector.
  • a cartridge feeding mechanism may be utilized in the disclosed systems and methods for smearing or coating the conductive wire with the spinning solution.
  • the cartridge feeding mechanism may include a partially filled enclosed spinning solution reservoir and a feeding roller partially immersed in the spinning solution.
  • the feeding roller may include a first portion that is immersed in the spinning solution and a second portion out of the spinning solution.
  • the conductive wire may be partially in contact with the second portion of the feeding roller and as the roller rolls inside the spinning solution, it coats the portion of wire in contact with its second portion.
  • the cartridge feeding mechanism may move back and forth along the conductive wire and the enitre length of the conductive wire may be coated with the spinning solution. Under the electrical filed formed between the conductive wire and the collector, many jets may form on the coated wire and pulled toward the collector to be collected as nanofibrous articles.
  • FIG. 1 illustrates a schematic of a cartridge electrospinning system 100, according to one or more implementations of the present disclosure.
  • the cartridge electrospinning system 100 may include: a spinner wire 101 that may function as the spray electrode, a cartridge feeding mechanism 102 that may be configured to coat the spinner wire 101 with a spinning solution 103; and a collector 104.
  • a first electrode of a high voltage power supply 105 may be attached to the spinner wire 101 and a second electrode of the high voltage power supply 105 may be connected to the collector 104.
  • a positive electrode of high voltage power supply 105 may be attached to the spinner wire 101 and a negative electrode of the high voltage power supply 105 may be connected to the collector 104 in order to create an electrical field between the spinner wire 101 and the collector 104.
  • the cartridge feeding mechanism 102 may move back and forth along the spinner wire 101 in the direction shown by arrow 106 to uniformly coat the entire length of the spinner wire 101 with the spinning solution 103. Under the electrical filed formed between the spinner wire 101 and the collector 104, many jets 107 may form on the smeared spinner wire 101 and pulled toward the collector 104 to be collected as nanofibrous articles.
  • vertical distance between the spinner wire 101 and the collector 104 may be adjusted by vertically moving the collector 104 along a path as shown by arrow 108.
  • the vertical distance between the spinner wire 101 and the collector 104 may be adjusted between 60 to 200 mm.
  • the spinning solution may include one of polyimide, Polyamide 6 and 6,6, hyaluronic acid (HA), polyaramide, polyacrylonitrile (PAN), polyethylene terephthalate (PET), polyaniline (PANI), polyethylene oxide(PEO), styrene butadiene rubber (SBR), polystyrene (PS), polyvinyl chloride (PVC), polyvinyl alcohol (PVA), polyvinylidene fluoride (PVDF), poly(lactic acid) (PLA), polyurethanes(PU), polysiloxanes or silicones, polyvinyl pyrrolidone (PVP), polycaprolactones, poly(methyl methacrylate) (PMMA), polyacrylamide (PAM), polyglycolides (PGA), poly(lactide-co- glycolides) (PLGA), polylactides, poly(acrylic acid), polybutene, polysulfide, cyclic polyolefins,
  • HA hyalur
  • Cartridge feeding mechanism 102 may include a feeding roller 201 and an enclosed reservoir 202.
  • the feeding roller 201 is disposed inside the enclosed reservoir 202 and the enclosed reservoir 202 may be partially filled with a spinning solution 203.
  • the feeding roller 201 may be partially immersed inside the spinning solution 203, such that a lower portion 204 of the feeding roller 201 is inside the spinning solution 203 and an upper portion 205 of the feeding roller 201 is outside of the spinning solution 203.
  • the feeding roller 201 may be configured to be rotatable inside the enclosed reservoir 202.
  • the enclosed reservoir 202 may further include two holes 206, 207 at either sides of the enclosed reservoir 202 to allow for passage of a spinner wire, such as spinner wire 101.
  • Feeding roller 201 is configured to rotate inside the spinning solution 203 and thereby carry around a portion of the spinning solution and coat the spinner wire 101 with the spinning solution.
  • FIG. 2B illustrates an implementation of feeding roller 201.
  • the feeding roller 201 may include a spool-shaped body 210 that has a groove 211 thereon.
  • the spool-shaped body 210 may be positioned such that a spinner wire, such as spinner wire 101 may be disposed inside the groove 211.
  • An actuator may be coupled with the spool-shaped body 210 to rotate the spool-shaped body 210 about an axis 212 substantially perpendicular to the longitudinal axis of the spinner wire 101.
  • the groove 211 may have a width in a range of 2 to 5 mm and a depth in a range of 4 to 8 mm.
  • the spool-shaped body 210 may have an outer diameter between 3 and 10 cm.
  • the spool-shaped body 210 may rotate about axis 212 with a rotational speed between 1 and 60 rpm.
  • the groove 211 is filled with the spinning solution and thereby the spinning solution is carried around in the groove 211 toward the spinner wire 101. Since a portion of the spinner wire 101 is disposed inside the groove 211, it is coated by the spinning solution carried around inside the groove 211. In other words, the portion of spinner wire 101 which is placed inside the groove 211 is immersed in and thereby coated by the spinning solution carried around in the groove 211.
  • the enclosed reservoir 202 may be moved back and forth along the spinner wire 101, such that all the length of the spinner wire 101 may be coated by the spinning solution.
  • FIG. 2C illustrates a top-view of an implementation of the cartridge feeding mechanism 102.
  • the feeding roller 201 may be coupled to an actuator 212 by a shaft 213 disposed inside the enclosed reservoir 202 of the cartridge feeding mechanism 102.
  • the shaft 213 may be limited to a rotational movement about the longitudinal axis 216 of the shaft 213.
  • FIG. 3 illustrates a top-view of a cartridge feeding mechanism 300, according to another implementation of the present disclosure.
  • the cartridge feeding mechanism 300 may include a first feeding roller 301 and a second feeding roller 302 mounted on a shaft 303 and configured to be rotatable inside an enclosed reservoir 304.
  • An actuator 307 may be coupled to the shaft 303 to rotate the first feeding roller 301 and the second feeding roller 302.
  • the cartridge feeding mechanism 300 is configured to coat two spinner wires 305, 306, simultaneously. It should be understood that there is no limit on the number of feeding rollers that may be disposed within a single enclosed reservoir and each cartridge feeding mechanism may be utilized to coat a plurality of spinner wires with the spinning solution.
  • FIG. 4 illustrates a cartridge electrospinning apparatus 400 that may be configured to be an implementation of the cartridge electrospinning system 100 of FIG. 1.
  • the cartridge electrospinning apparatus 400 may include a cartridge feeding mechanism 401 mounted on a mounting member 402.
  • the mounting member 402 may be coupled with a linear actuating mechanism 403, such as, for example a ball-screw mechanism that may be configured to move the cartridge feeding mechanism 401 back and forth along spinner wires 404, 405 in the direction shown by arrow 406.
  • a linear actuating mechanism 403 such as, for example a ball-screw mechanism that may be configured to move the cartridge feeding mechanism 401 back and forth along spinner wires 404, 405 in the direction shown by arrow 406.
  • main structure 407 of the cartridge electrospinning apparatus 400 may enclose the linear actuating mechanism 403 and a coupling member 408 attached to the linear actuating mechanism 403 may protrude from a longitudinal slit 409 on the main structure 407 and the coupling member 408 may be attached to the mounting member 402.
  • the cartridge electrospinning apparatus 400 may further include two wire connecting and holding mechanisms 410, 411 that may hold either ends of the spinner wires 404, 405 and connect the spinner wires 404, 405 to a high voltage power supply (not explicitly shown in FIG. 4).
  • the cartridge electrospinning apparatus 400 may further include a collector 412, such as a rolling collector as shown in FIG. 4.
  • the distance between the spinner wires 404, 405 and the collector 412 may be adjusted by vertically moving the collector 412 along a path shown by arrow 413.
  • the cartridge feeding mechanism 401 may move back and forth along the entire length of the spinner wires with a translational speed between 1 and 90 cm/s.
  • the cartridge feeding mechanism 401 may be similar to the cartridge feeding mechanism 300 of FIG.3.
  • the cartridge feeding mechanism 401 may include an enclosed reservoir 414 and an actuator 415, both mounted on the mounting member 402 and movable therewith. It should be understood that in another implementation, the cartridge feeding mechanism 401 may be configured similar to the cartridge feeding mechanism 102 of FIG. 2C.
  • FIG. 5 illustrates a cartridge electrospinning apparatus 500 that may be configured to be an implementation of the cartridge electrospinning system 100 of FIG. 1.
  • the cartridge electrospinning apparatus 500 may include a plurality of cartridge feeding mechanisms 501 mounted on an elongated mounting member 502.
  • the elongated mounting member 502 may be coupled to a linear actuator 503 similar to what was described in detail in connection with the mounting member 402 of FIG. 4.
  • the cartridge feeding mechanisms 501 may either share a single actuating mechanism or they may include individual actuating mechanisms.
  • each of the cartridge feeding mechanisms 501 may be configured similar to the cartridge feeding mechanism 102 of FIG. 2C.
  • each of the cartridge feeding mechanisms 501 may be configured similar to the cartridge feeding mechanism 300 of FIG. 3.
  • a collector is not explicitly shown for simplicity.

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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)

Abstract

L'invention concerne un système d'électrofilage de cartouche pouvant comprendre un fil conducteur connecté à un premier pôle d'une alimentation électrique haute tension et un collecteur connecté à un second pôle de l'alimentation électrique haute tension, de telle sorte qu'un champ électrique puisse être créé entre le fil conducteur et le collecteur. Le système d'électrofilage de cartouche peut en outre comprendre un mécanisme d'alimentation de cartouche qui peut être mobile sur toute la longueur du fil conducteur et étaler une solution de filage sur toute la longueur du fil conducteur, formant ainsi de petites gouttelettes de la solution de filage sur le fil conducteur. Le mécanisme d'alimentation de cartouche peut comprendre un réservoir fermé rempli partiellement de la solution de filage et englobant une partie du fil conducteur. Le mécanisme d'alimentation de cartouche peut en outre comprendre un rouleau d'alimentation en forme de bobine avec une rainure sur celui-ci, qui peut être rotatif à l'intérieur du réservoir fermé et partiellement immergé à l'intérieur de la solution de filage. Le fil conducteur peut passer à travers une partie supérieure du rouleau d'alimentation en forme de bobine à l'intérieur de la rainure de celui-ci.
PCT/IB2018/052829 2017-04-30 2018-04-24 Système d'électrofilage de cartouche WO2018203182A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IR139650140003001411 2017-04-30
IR13963001411 2017-04-30

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WO2018203182A1 true WO2018203182A1 (fr) 2018-11-08

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109695063A (zh) * 2019-01-31 2019-04-30 吉林农业大学 一种无针式静电纺丝装置
CN110404890A (zh) * 2019-07-03 2019-11-05 东华大学 一种旋转轮式喷头清洁装置
JP2020505517A (ja) * 2017-01-06 2020-02-20 サビック グローバル テクノロジーズ ベスローテン フェンノートシャップ 液体高分子をナノスケールまたはサブミクロンスケールの繊維に電界紡糸する装置
CN111826725A (zh) * 2019-04-15 2020-10-27 苏州能环新材料科技有限公司 一种连续性的流水线式静电纺丝供液装置
CN112779611A (zh) * 2021-01-20 2021-05-11 宁波方太厨具有限公司 一种静电纺丝装置
CN113930851A (zh) * 2021-09-22 2022-01-14 南通顶誉纺织机械科技有限公司 一种旋转带液式静电纺丝装置及纺丝方法
CN114481341A (zh) * 2022-03-24 2022-05-13 河南中纤新材料科技有限公司 一种用于线性电极溶液静电纺丝的喷头及其使用方法

Citations (3)

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Publication number Priority date Publication date Assignee Title
CN101691683B (zh) * 2009-09-27 2011-04-13 北京服装学院 宏量制备纳米纤维织物的静电纺丝装置
CN102312296B (zh) * 2010-06-30 2013-10-30 财团法人纺织产业综合研究所 滚筒式电纺设备
KR101591681B1 (ko) * 2014-05-27 2016-02-05 전북대학교산학협력단 와이어 타입의 전기방사장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101691683B (zh) * 2009-09-27 2011-04-13 北京服装学院 宏量制备纳米纤维织物的静电纺丝装置
CN102312296B (zh) * 2010-06-30 2013-10-30 财团法人纺织产业综合研究所 滚筒式电纺设备
KR101591681B1 (ko) * 2014-05-27 2016-02-05 전북대학교산학협력단 와이어 타입의 전기방사장치

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020505517A (ja) * 2017-01-06 2020-02-20 サビック グローバル テクノロジーズ ベスローテン フェンノートシャップ 液体高分子をナノスケールまたはサブミクロンスケールの繊維に電界紡糸する装置
CN109695063A (zh) * 2019-01-31 2019-04-30 吉林农业大学 一种无针式静电纺丝装置
CN111826725A (zh) * 2019-04-15 2020-10-27 苏州能环新材料科技有限公司 一种连续性的流水线式静电纺丝供液装置
CN110404890A (zh) * 2019-07-03 2019-11-05 东华大学 一种旋转轮式喷头清洁装置
CN112779611A (zh) * 2021-01-20 2021-05-11 宁波方太厨具有限公司 一种静电纺丝装置
CN113930851A (zh) * 2021-09-22 2022-01-14 南通顶誉纺织机械科技有限公司 一种旋转带液式静电纺丝装置及纺丝方法
CN114481341A (zh) * 2022-03-24 2022-05-13 河南中纤新材料科技有限公司 一种用于线性电极溶液静电纺丝的喷头及其使用方法

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