KR20040094520A - A process of preparing for nonwoven fabric composed of nanofiber - Google Patents

A process of preparing for nonwoven fabric composed of nanofiber Download PDF

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Publication number
KR20040094520A
KR20040094520A KR1020030028371A KR20030028371A KR20040094520A KR 20040094520 A KR20040094520 A KR 20040094520A KR 1020030028371 A KR1020030028371 A KR 1020030028371A KR 20030028371 A KR20030028371 A KR 20030028371A KR 20040094520 A KR20040094520 A KR 20040094520A
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South Korea
Prior art keywords
surfactant
spinning solution
nonwoven fabric
nanofiber
electrospinning
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KR1020030028371A
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Korean (ko)
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김학용
길명섭
류영준
정윤호
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김학용
박종철
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Priority to KR1020030028371A priority Critical patent/KR20040094520A/en
Publication of KR20040094520A publication Critical patent/KR20040094520A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0073—Details
    • B65H35/008—Arrangements or adaptations of cutting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/002—Hand-held or table apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5151—Cutting handled material transversally to feeding direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5153—Details of cutting means
    • B65H2301/51532—Blade cutter, e.g. single blade cutter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5154—Cutting handled material from hand-held or table dispenser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/37—Tapes

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  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

PURPOSE: A manufacturing method of nano-fiber non-woven fabric is characterized by not needing to supplement equipments and generating big electric force without increasing voltage by force. CONSTITUTION: Nano-fiber non-woven fabric is obtained by the steps of: electric-spinning a polymer spinning solution through a nozzle(3) to a collector(4) supplying voltage; and then adding 0.5-20wt.% of a surfactant to the polymer spinning solution. The surfactant is an anion surfactant, a cation surfactant, an amphion surfactant and a non-ion surfactant.

Description

나노섬유 부직포의 제조방법 {A process of preparing for nonwoven fabric composed of nanofiber}A process of preparing for nonwoven fabric composed of nanofiber}

본 발명은 섬유직경이 1,000nm 이하 수준인 초극세 섬유(이하 " 나노섬유"라고 한다)로 구성되는 부직포를 전기방사 공법으로 제조하는 방법에 관한 것이다.The present invention relates to a method for producing a nonwoven fabric composed of ultra-fine fibers (hereinafter referred to as "nano fibers") having a fiber diameter of 1,000 nm or less by the electrospinning method.

보다 구체적으로 본 발명은 전기방사 방식으로 나노섬유로 구성되는 부직포(이하 "나노섬유 부직포" 라고 한다)를 제조하는 공정 중에 고분자 방사용액 내에 계면활성제를 첨가하는 것을 특징으로 하는 나노섬유 부직포의 제조방법에 관한 것이다.More specifically, the present invention is a method for producing a nanofiber nonwoven fabric, characterized in that the surfactant is added to the polymer spinning solution during the process of producing a nonwoven fabric consisting of nanofibers (hereinafter referred to as "nanofiber nonwoven fabric") by the electrospinning method It is about.

나노섬유로 구성된 부직포, 멤브레인, 브레이드 등의 제품은 생활용품, 농업용, 의류용, 산업용 등으로 널리 사용되고 있다. 구체적으로 인조피혁, 인조스웨이드, 생리대, 의복, 기저귀, 포장재, 잡화용 소재, 각종 필터 소재, 유전자 전달체의 의료용 소재, 방탄조끼 등의 국방용 소재 등 다양한 분야에서 사용되고 있다.Non-woven fabrics, membranes, braids, etc. composed of nanofibers are widely used in household goods, agriculture, clothing, industrial, and the like. Specifically, it is used in various fields such as artificial leather, artificial suede, sanitary napkins, garments, diapers, packaging materials, miscellaneous materials, various filter materials, medical materials for gene carriers, defense materials such as bulletproof vests.

통상적인 전기 방사 장치는 도 1에 도시된 바와 같이 방사액을 보관하는 방사액 주탱크(1), 방사액의 정량 공급을 위한 계량펌퍼(2), 방사액을 토출하는 다수개의 노즐이 배열된 노즐블록(4), 상기 노즐 하단에 위치하여 방사되는 섬유들을 집적하는 컬렉터(5) 및 전압을 발생시키는 전압발생장치(6) 들로 구성되어 있다.Conventional electrospinning apparatus is arranged with a spinning liquid main tank (1) for storing the spinning liquid, a metering pump (2) for quantitative supply of spinning liquid, and a plurality of nozzles for discharging the spinning liquid as shown in FIG. It consists of a nozzle block (4), a collector (5) for accumulating fibers located at the bottom of the nozzle and a voltage generator (6) for generating a voltage.

상기 전기 방사 장치를 이용한 종래의 부직포 제조방법을 구체적으로 살펴보면, 방사액 주탱크(1) 내 방사액을 계량펌퍼를 통해 높은 전압이 부여되는 다수의 노즐 내로 연속적으로 정량 공급한다.Looking at the conventional nonwoven fabric manufacturing method using the electrospinning apparatus in detail, the spinning liquid in the spinning liquid main tank 1 is continuously metered into a plurality of nozzles to which a high voltage is applied through a metering pump.

계속해서, 노즐들로 공급된 방사액은 노즐을 통해 높은 전압이 걸려있는 컬렉터(5) 상으로 방사, 집속되어 나노섬유 웹이 형성된다.Subsequently, the spinning liquid supplied to the nozzles is spun and concentrated through the nozzle onto the collector 5 under high voltage to form a nanofiber web.

계속해서, 상기 나노섬유 웹을 카렌더링 또는 니들펀칭하여 부직포를 제조한다.Subsequently, the nanofiber web is calendered or needle punched to produce a nonwoven fabric.

한편, 또다른 전기방사 장치로서 미국특허 제 4,323,525호에서는 봉 형태의 컬렉터를 사용하여 나노섬유로 이루어진 튜브를 제조하는 장치를 제안하고 있고, 미국특허 제 6,110,590은 전기방사시 방사노즐과 컬렉터 사이에 그리드(grid)를 설치하여 실크 나노섬유를 제조하는 장치를 제안하고 있다.Meanwhile, as another electrospinning apparatus, U.S. Patent No. 4,323,525 proposes a device for manufacturing a tube made of nanofibers using a rod-shaped collector, and U.S. Patent No. 6,110,590 provides a grid between the spinneret and the collector during electrospinning. A device for producing silk nanofibers by installing a grid is proposed.

이상에서 설명한 종래의 전기방사 장치들을 사용하여 고분자 방사용액을 전기방사하여 나노섬유 및 그의 부직포를 제조 할 때 상기 고분자 방사용액의 전기 전도도가 높으면 전기방사 중 보다 큰 전기력이 발휘되어 보다 극세화된 나노섬유를 제조 할 수 있다.When manufacturing the nanofiber and its nonwoven fabric by electrospinning the polymer spinning solution using the conventional electrospinning apparatus described above, if the electrical conductivity of the polymer spinning solution is high, the greater electric force during the electrospinning is exerted, thereby making the nanofiber more fine. Fiber can be produced.

그러나, 통상의 고분자 방사용액은 고분자 고유의 특성상 전기 전도도가 10ms/m 이하 수준으로 매우 낮아 전기방사 중 충분한 전기력이 발휘되지 못하였다.However, the conventional polymer spinning solution has a very low electrical conductivity of 10 ms / m or less due to the inherent characteristics of the polymer, so that sufficient electric force was not exhibited during electrospinning.

이와 같은 문제점을 해결하기 위해 전기방사시 높은 전압을 노즐과 컬렉터에 걸어주고 있으나, 전기방사 중 전기력을 충분하게 발휘하는데는 한계가 있었고, 이로 인해 방사되는 섬유를 극세화 하는데도 한계가 있었다.In order to solve this problem, a high voltage is applied to the nozzle and the collector during the electrospinning, but there is a limit to sufficiently exert the electric force during the electrospinning, and thus there is a limit to the miniaturization of the emitted fiber.

본 발명의 목적은 이와 같은 종래 문제점들을 해결하기 위한 것으로서, 고분자 방사용액의 용액점도나 표면장력은 크게 변화시키지 않으면서 전기전도도는 크게 향상시켜 전기방사 중에 보다 큰 전기력이 발휘되도록 하기 위한 것이다.An object of the present invention is to solve such a conventional problem, to significantly improve the electrical conductivity without significantly changing the solution viscosity or surface tension of the polymer spinning solution so that a greater electric force during the electrospinning.

본 발명은 전기방사 공정 중에 보다 큰 전기력을 발휘하여 방사되는 나노섬유를 보다 극세화 할 수 있는 나노섬유 부직포의 제조방법을 제공하고자 한다. 또한 본 발명은 전기방사 공정 중에 고분자 방사용액의 용액점도나 표면장력을 크게 변화시키지 않으면서도 전기 전도도는 크게 향상시키는 수단도 제공하고자 한다.The present invention is to provide a method for producing a nanofiber nonwoven fabric that can be made more finer than the nanofibers emitted by exhibiting a greater electric force during the electrospinning process. In addition, the present invention is to provide a means for greatly improving the electrical conductivity without significantly changing the solution viscosity or surface tension of the polymer spinning solution during the electrospinning process.

도 1은 통상적인 전기방사 공정의 개략도1 is a schematic diagram of a conventional electrospinning process

도 2는 실시예 1로 제조된 나노섬유 부직포의 표면 사진Figure 2 is a surface photograph of the nanofiber nonwoven fabric prepared in Example 1

도 3은 실시예 2로 제조된 나노섬유 부직포의 표면 사진3 is a photograph of the surface of the nanofiber nonwoven fabric prepared in Example 2

도 4는 실시예 3으로 제조된 나노섬유 부직포의 표면 사진4 is a photograph of the surface of the nanofiber nonwoven fabric prepared in Example 3

도 5는 실시예 4로 제조된 나노섬유 부직포의 표면 사진5 is a surface photograph of the nanofiber nonwoven fabric prepared in Example 4

도 6은 실시예 5로 제조된 나노섬유 부직포의 표면 사진6 is a surface photograph of a nanofiber nonwoven fabric prepared in Example 5

도 7은 실시예 6으로 제조된 나노섬유 부직포의 표면 사진7 is a surface photograph of a nanofiber nonwoven fabric prepared in Example 6

도 8은 실시예 7로 제조된 나노섬유 부직포의 표면 사진8 is a surface photograph of a nanofiber nonwoven fabric prepared in Example 7

도 9는 비교실시예 1로 제조된 나노섬유 부직포의 표면 사진9 is a photograph of the surface of the nanofiber nonwoven fabric prepared in Comparative Example 1

※ 도면 중 주요부분에 대한 부호설명※ Explanation of code of main part of drawing

1 : 방사용액 주탱크 2 : 계량펌퍼 3 : 노즐1: Spinning solution main tank 2: Metering pump 3: Nozzle

4 : 컬렉터 5 : 전압전달로드 6 : 전압발생장치4 collector 5 voltage transfer rod 6 voltage generator

이와 같은 과제들을 달성하기 위한 본 발명의 나노섬유 부직포의 제조방법은, 고분자 방사용액을 전압이 걸려있는 노즐(3)을 통해 전압이 걸려있는 컬렉터(4)로 전기방사하여 나노섬유 부직포를 제조 할 때 상기 고분자 방사용액 내에 계면활성제를 첨가하는 것을 특징으로 한다.In the method of manufacturing the nanofiber nonwoven fabric of the present invention for achieving the above problems, the nanofiber nonwoven fabric is produced by electrospinning the polymer spinning solution to the collector (4) under voltage through a nozzle (3) under voltage. When the surfactant is added to the polymer spinning solution.

이하, 첨부된 도면 등을 통하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

먼저, 본 발명에서는 도 1과 같이 고분자 방사용액을 전압이 걸려있는 노즐(3)을 통해 전압이 걸려있는 컬렉터(4)로 전기방사한 다음, 컬렉터(4) 상에 집적된 나노섬유 웹을 카렌더링하여 나노섬유 부직포를 제조한다.First, in the present invention, as shown in FIG. 1, the polymer spinning solution is electrospun into the collector 4 under voltage through the nozzle 3 under voltage, and then the nanofiber web integrated on the collector 4 is applied to the car. Render to produce nanofiber nonwovens.

본 발명은 이와 같은 전기방사 공정에 있어서, 전기력이 최대한 발휘되어 방사되는 섬유들이 더욱 더 극세화 될 수 있도록 상기 고분자 방사용액 내에 계면활성제를 첨가하는 것을 특징으로 한다.In the electrospinning process, the present invention is characterized in that the surfactant is added to the polymer spinning solution so that the electric force can be exerted to the maximum and the fibers are spun even more.

본 발명의 고분자 방사용액 제조에 사용되는 고분자로는 유기용매에 용해가 가능한 폴리비닐알코올, 폴리에스테르, 폴리아미드, 폴리비닐클로라이드, 폴리우레탄, 폴리아크릴로니트릴 등의 모든 유기 고분자와 유기-무기 졸 또는 겔 등이 모두 사용될 수 있다.Polymers used in the preparation of the polymer spinning solution of the present invention include all organic polymers such as polyvinyl alcohol, polyester, polyamide, polyvinyl chloride, polyurethane, polyacrylonitrile and organic-inorganic sol, which are soluble in an organic solvent. Or both gels and the like may be used.

상기 고분자 방사용액 내 계면활성제의 함량은 0.5~20중량%인 것이 바람직 하다. 계면활성제의 함량이 상기 범위보다 낮은 경우에는 방사용액의 전기 전도도가 충분히 높아지지 않아 전기방사 중 전기력 발휘 정도가 부족하게 될 수 있고, 계면활성제의 함량이 상기 범위보다 높을 경우에는 방사용액의 점도나 표면장력이 크게 변화되어 전기방사 공정성이 나빠질 수도 있다.The content of the surfactant in the polymer spinning solution is preferably 0.5 to 20% by weight. If the content of the surfactant is lower than the above range, the electrical conductivity of the spinning solution may not be high enough, and the degree of electric force exertion may be insufficient during the electrospinning. If the content of the surfactant is higher than the above range, the viscosity of the spinning solution or The surface tension may change significantly, leading to poor electrospinning processability.

계면활성제의 종류로는 양이온계면활성제, 음이온계면활성제, 양쪽성(양쪽이온)계면활성제 및 비이온계면활성제 등을 사용 할 수 있으나 양쪽성(양쪽이온)계면활성제를 사용하는 것이 보다 바람직 하다. 양쪽성(양쪽이온)계면활성제는 첨가량이 증가하여도 방사용액의 점도나 표면장력은 변화시키지 않고 전기 전도도만 증가시키는 효과가 다른 종류의 계면활성제 보다 우수하다.Cationic surfactants, anionic surfactants, amphoteric (zwitterionic) surfactants and nonionic surfactants may be used as the type of the surfactant, but it is more preferable to use zwitterionic (zwitterionic) surfactants. Amphoteric (zwitterionic) surfactants are superior to other surfactants in increasing the electrical conductivity without changing the viscosity or surface tension of the spinning solution even if the amount of the additive is increased.

양쪽성(양쪽이온)계면활성제로는 아미노산 등이 사용될 수 있고, 음이온계면활성제로는 비누 또는 알킬벤젠술폰산염 등이 사용될 수 있고, 양이온계면활성제로는 고급아민할로겐화물, 제사암모늄염 또는 알킬피리디늄염 등이 사용될 수 있고 비이온계면활성제로는 폴리에틸렌글리콜 등이 사용될 수 있다.As the amphoteric (zwitterionic) surfactant, an amino acid may be used, and as anionic surfactant, soap or alkylbenzene sulfonate may be used. It may be used such as a nium salt and polyethylene glycol may be used as the nonionic surfactant.

상기와 같이 계면활성제가 첨가된 고분자 방사용액은 점도나 표면장력은 크게 변화되지 않으면서도 전기전도도가 크게 증가하기 때문에, 전기방사 중 보다 큰 전기력을 발휘할 수 있고 이로인해 방사되는 섬유를 더욱 더 극세화 할 수 있다.As described above, the polymer spinning solution added with the surfactant has a large increase in electrical conductivity without significantly changing viscosity or surface tension, and thus can exhibit greater electric force during electrospinning, thereby further minimizing the fiber being spun. can do.

전기방사 공정을 보다 구체적으로 살펴보면, 도 1의 방사용액 주탱크(1) 내고분자 방사용액(계면활성제 함유)을 계량펌퍼(2)를 통해 높은 전압이 부여되는 다수의 노즐(3) 내로 연속적으로 정량 공급한다. 고분자 방사용액 내의 고형성분은 10~40중량%인 것이 바람직 하다.Looking more specifically at the electrospinning process, the polymer spinning solution (containing the surfactant) in the spinning solution main tank 1 of FIG. 1 is continuously passed through the metering pump 2 into a plurality of nozzles 3 to which a high voltage is applied. Supply a fixed amount. The solid component in the polymer spinning solution is preferably 10 to 40% by weight.

계속해서, 노즐(3)들로 공급된 방사용액은 노즐을 통해 높은 전압이 걸려있는 컬렉트(4) 상으로 방사, 집속되어 나노섬유 웹이 형성된다.Subsequently, the spinning solution supplied to the nozzles 3 is spun and concentrated through the nozzles onto the collector 4 under high voltage to form a nanofiber web.

상기 노즐블록(3)은 2개 이상의 핀(pin)으로 구성되는 블록단위로 배열되어 있다. 한개 노즐블록(3) 내에 형성되는 핀 개수는 2~100,000개, 더욱 바람직 하기로는 20~2,000개로 조정하는 것이 좋다. 상기 노즐 핀의 형태는 원형 또는 이형 단면이며, 주사바늘 형태로 할 수 있다. 노즐 핀은 원주상, 격자상 또는 일렬로 배열할 수 있다. 더욱 좋기로는 일렬로 배열하는 것이 좋다.The nozzle blocks 3 are arranged in block units consisting of two or more pins. The number of pins formed in one nozzle block 3 is preferably 2-100,000, more preferably 20-2,000. The nozzle pin may have a circular or shaped cross section and may have a needle shape. The nozzle pins can be arranged in circumferential, lattice, or line. More preferably, they are arranged in a line.

전기방사시 전기력에 의한 섬유형성을 촉진하기 위하여 노즐블록(3) 상단부에 설치된 전압전달기구(5)와 컬렉터(4)에는 전압발생장치(6)에서 발생된 1kV 이상, 더욱 좋기로는 20kV 이상의 전압을 걸어준다.In order to promote fiber formation by electric force during electrospinning, the voltage transmission device 5 and the collector 4 installed at the upper end of the nozzle block 3 are 1 kV or more, more preferably 20 kV or more, generated by the voltage generator 6. Apply voltage.

본 발명은 이상에서 설명한 바와 같이, 고분자 방사용액에 계면활성제를 첨가하여 전기전도도를 크게 향상시키므로서 전기방사 공정 중 보다 큰 전기력이 발휘된다. 그 결과 본 발명은 보다 더 극세화된 나노섬유 및 이들로 구성된 나노섬유 부직포를 제조할 수 있다.As described above, the surfactant is added to the polymer spinning solution to significantly improve the electrical conductivity, thereby exhibiting a greater electric force during the electrospinning process. As a result, the present invention can produce even finer nanofibers and nanofiber nonwoven fabrics composed thereof.

이하, 실시예 및 비교실시예를 통하여 본 발명을 보다 구체적으로 살펴본다. 그러나 본 발명이 하기 실시예에만 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the present invention is not limited only to the following examples.

실시예 1Example 1

폴리비닐알코올을 증류수에 80℃에서 1시간 동안 용해(고형분 15중량%)한 후 상온으로 냉각시킨 다음 여기에 양이온계면활성제(알킬피리디늄염) 1중량%를 첨가하여 고분자 방사용액을 제조 하였다. 상기 고분자 방사용액을 전압 30kV와 방사거리 13cm 조건 하에서 직경 1mm의 노즐을 통해 컬렉터 상으로 전기방사 한 후, 컬렉터 상에 전기방사된 나노섬유 웹을 컬렉터 상에서 분리하여 나노섬유 부직포를 제조 하였다. 제조된 나노섬유 부직포의 표면사진은 도 2과 같다. 또한 고분자 방사용액의 전기전도도, 용액점도 및 표면장력과 제조된 나노섬유의 직경을 측정한 결과는 표 2와 같다.Polyvinyl alcohol was dissolved in distilled water at 80 ° C. for 1 hour (solid content of 15 wt%), cooled to room temperature, and then 1 wt% of a cationic surfactant (alkylpyridinium salt) was added thereto to prepare a polymer spinning solution. The polymer spinning solution was electrospun onto a collector through a nozzle having a diameter of 1 mm under a condition of a voltage of 30 kV and a spinning distance of 13 cm, and then a nanofiber nonwoven fabric was prepared by separating the electrospun nanofiber web onto the collector. The surface photograph of the prepared nanofiber nonwoven fabric is shown in FIG. 2. In addition, the results of measuring the electrical conductivity, solution viscosity and surface tension of the polymer spinning solution and the diameter of the prepared nanofibers are shown in Table 2.

실시예 2 ~ 실시예 7 및 비교실시예 1Example 2-Example 7 and Comparative Example 1

계면활성제의 종류 및 첨가량을 표 1과 같이 변경한 것을 제외하고는 실시예 1과 동일한 방법(조건)으로 나노섬유 부직포를 제조 하였다. 고분자 방사용액의 전기전도도, 용액점도 및 표면장력과 제조된 나노섬유의 직경을 측정한 결과는 표 2와 같다.A nanofiber nonwoven fabric was prepared in the same manner as in Example 1 except that the type and amount of the surfactant were changed as shown in Table 1. The electrical conductivity, solution viscosity, surface tension, and diameter of the prepared nanofibers of the polymer spinning solution are measured.

제조조건Manufacture conditions 구 분division 계면활성제의 종류Type of surfactant 계면활성제 첨가량(중량%)Surfactant addition amount (% by weight) 실시예 1Example 1 양이온계면활성제(알킬피리디늄염)Cationic Surfactants (Alkylpyridinium Salts) 1One 실시예 2Example 2 음이온계면활성제(알킬벤젠술폰산염)Anionic Surfactants (Alkylbenzenesulfonates) 1One 실시예 3Example 3 양쪽이온계면활성제(아미노산)Zwitterionic Surfactant (Amino Acid) 1One 실시예 4Example 4 비이온계면활성제(폴리에틸렌글리콜)Nonionic Surfactant (Polyethylene Glycol) 1One 실시예 5Example 5 양쪽이온계면활성제(아미노산)Zwitterionic Surfactant (Amino Acid) 22 실시예 6Example 6 양쪽이온계면활성제(아미노산)Zwitterionic Surfactant (Amino Acid) 33 실시예 7Example 7 양쪽이온계면활성제(아미노산)Zwitterionic Surfactant (Amino Acid) 44 비교실시예 1Comparative Example 1 계면활성제 첨가하지 않음No surfactant added 00

측정결과Measurement result 구 분division 고분자 방사용액 물성Polymer spinning solution 나노섬유평균직경(nm)Nano Fiber Average Diameter (nm) 나노섬유부직포표면사진Nanofiber Nonwoven Surface Photo 전기전도도(ms/m)Conductivity (ms / m) 용액점도(cPs)Solution viscosity (cPs) 표면장력(mN.m)Surface tension (mN.m) 실시예 1Example 1 4141 1,0501,050 38.938.9 265265 도 22 실시예 2Example 2 6262 950950 36.536.5 203203 도 33 실시예 3Example 3 7676 480480 32.832.8 154154 도 44 실시예 4Example 4 1616 505505 33.033.0 313313 도 55 실시예 5Example 5 175175 482482 32.932.9 110110 도 66 실시예 6Example 6 243243 482482 32.932.9 105105 도 77 실시예 7Example 7 312312 483483 32.932.9 9292 도 88 비교실시예 1Comparative Example 1 88 480480 44.444.4 290290 도 99

본 발명은 추가설비나 노즐 등에 부과되는 전압의 무리한 상승 없이도 전기방사 중에 보다 큰 전기력이 발휘되도록 할 수 있다. 그 결과 보다 극세화된 나노섬유 및 보다 극세화된 나노섬유로 구성되는 부직포를 제조할 수 있다.The present invention can allow a greater electric force to be exerted during electrospinning without forcibly increasing the voltage applied to additional equipment or nozzles. As a result, a nonwoven fabric composed of more micronized fibers and micronized nanofibers can be produced.

Claims (3)

고분자 방사용액을 전압이 걸려있는 노즐(3)을 통해 전압이 걸려있는 컬렉터(4)로 전기방사하여 나노섬유 부직포를 제조함에 있어서, 상기 고분자 방사용액 내에 계면활성제를 첨가하는 것을 특징으로 하는 나노섬유 부직포의 제조방법.In producing a nanofiber nonwoven fabric by electrospinning a polymer spinning solution into a collector 4 under voltage through a nozzle 3 under voltage, a nanofiber, characterized in that a surfactant is added to the polymer spinning solution. Method for manufacturing nonwoven fabrics. 1항에 있어서, 고분자 방사용액 내 계면활성제의 함량이 0.5~20중량%인 것을 특징으로 하는 나노섬유 부직포의 제조방법.The method of claim 1, wherein the content of the surfactant in the polymer spinning solution is 0.5 to 20% by weight. 1항에 있어서, 계면활성제가 양이온계면활성제, 음이온계면활성제, 양쪽성(양쪽이온)계면활성제 또는 비이온계면활성제인 것을 특징으로 하는 나노섬유 부직포의 제조방법.The method for producing a nanofiber nonwoven fabric according to claim 1, wherein the surfactant is a cationic surfactant, an anionic surfactant, an amphoteric (zwitterionic) surfactant or a nonionic surfactant.
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KR100732546B1 (en) * 2005-12-26 2007-06-27 삼성전자주식회사 Filter for air conditioner
KR100730367B1 (en) * 2006-06-09 2007-06-19 한국에너지기술연구원 Method of manufacturing silk nano-fiber using electrospinning from waste silk and it's manufacture goods, and bio-composite materials using the silk nano-fiber and method of manufacturing the same
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US11434586B2 (en) 2010-07-02 2022-09-06 The Procter & Gamble Company Filaments comprising an active agent nonwoven webs and methods for making same
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KR101390532B1 (en) * 2012-08-23 2014-04-30 성균관대학교산학협력단 Apparatus for forming patterns
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US12029799B2 (en) 2017-05-16 2024-07-09 The Procter & Gamble Company Conditioning hair care compositions in the form of dissolvable solid structures
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