Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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A Study on the Industrial Application of PTFE Fibrous Nonwoven Fabricated by Electrospinning Technique as Dust Filtration Media

전기방사 기법으로 제조된 PTFE 섬유기반 부직포의 산업용 방진필터 응용에 관한 연구

  • Ji Hyun Lee (Advanced Textile R&D Department, Korea Institute of Industrial Technology) ;
  • Kwang Won Kim (Advanced Textile R&D Department, Korea Institute of Industrial Technology) ;
  • Seon-Jin Choi (Division of Materials Science and Engineering, Hanyang University) ;
  • Ki Ro Yoon (Advanced Textile R&D Department, Korea Institute of Industrial Technology)
  • 이지현 (한국생산기술연구원 섬유연구부문) ;
  • 김광원 (한국생산기술연구원 섬유연구부문) ;
  • 최선진 (한양대학교 신소재공학과) ;
  • 윤기로 (한국생산기술연구원 섬유연구부문)
  • Received : 2023.05.23
  • Accepted : 2023.08.16
  • Published : 2023.08.31
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Abstract

With the advancement of industrial development and diversification of workplaces development, the development of filtration technologies for capturing fine dusts and preventing facilities in workplaces that require specific management of various emissions, such as high temperature, high humidity, and acidic/alkaline conditions, has gained a large interest. Among several polymeric filtration materials, polytetrafluoroethylene (PTFE), commonly known as Teflon, is recognized for its excellent thermal stability, chemical resistance, and low coefficient of friction. However, these properties of PTFE pose challenges in conventional melt-blowing or electrospinning techniques and production processes for filtration materials. In this study, we successfully performed electrospinning by emulsifying granular PTFE powder into a heterogeneous polymeric solution and fabricated a nonwoven fabric composed solely of PTFE fibers through subsequent heat treatment. The developed PTFE nonwoven fabric consisted of fibers with a diameter of about 1.2 ㎛ and achieved superior heat stability, water resistance, chemical resistance, and tensile properties compared to conventional filtration materials. Moreover, it demonstrated excellent filtration efficiency with a pressure drop of 94.04% and 89.84 Pa, respectively, and confirmed its potential as an industrial filter that can be utilized in extremely harsh environments.

Keywords

Acknowledgement

본 연구는 과학기술정보통신부 STEAM연구사업BRIDGE 융합연구개발(과제번호 2022M3C1C3095083) 및 한국생산기술연구원 기본사업 '섬유기반 공기내 유해인자 저감기술 개발'(과제번호 EO-23-0005)의 지원을 받아 수행된 연구임.

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