Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Characteristics of Large-area PTFE Filter Coated with PTFE Nanofiber Fabricated by Roll-to-roll Equipment

Roll-to-roll 공정으로 제조한 나노섬유가 코팅된 대면적 PTFE 필터 특성

  • Ahn, Seunghwan (Carbon Neutral Technology R&D Department, Korea Institute of Industrial Technology) ;
  • Lee, Woo Jin (Carbon Neutral Technology R&D Department, Korea Institute of Industrial Technology) ;
  • Kim, Yeonsang (Advanced Textile R&D Department, Korea Institute of Industrial Technology) ;
  • Shim, Euijin (Advanced Textile R&D Department, Korea Institute of Industrial Technology) ;
  • Eom, Hyeonjin (Carbon Neutral Technology R&D Department, Korea Institute of Industrial Technology)
  • 안승환 (한국생산기술연구원 탄소중립산업기술연구부문) ;
  • 이우진 (한국생산기술연구원 탄소중립산업기술연구부문) ;
  • 김연상 (한국생산기술연구원 섬유연구부문) ;
  • 심의진 (한국생산기술연구원 섬유연구부문) ;
  • 엄현진 (한국생산기술연구원 탄소중립산업기술연구부문)
  • Received : 2022.11.21
  • Accepted : 2022.11.24
  • Published : 2022.12.10
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Abstract

The equipment for fabricating the large-area PTFE nanofiber coated-PTFE foam filter for use as filtration parts of the baghouse that removes particulate matter (PM) in industrial sites was designed and manufactured in this study. The PTFE nanofiber was coated on a commercial PTFE foam filter to increase its PM collection efficiency. The equipment and fabrication processes using a roll-to-roll system were proposed to continuously coat PTFE nanofibers on the surface of the PTFE foam filter. The electrospinning and annealing parts were designed and made by optimizing the equipment for the roll-to-roll system. The surface morphology, composition, and filtration characteristics of the large-area filter fabricated by this equipment were confirmed. PTFE nanofibers were uniformly coated on the large-area filter, and the PTFE nanofiber coated-PTFE foam filter showed PM2.5 collection efficiency of 91.79% and an appropriate pressure drop of 62 Pa with a face velocity of 1 m/min at 280 ℃.

미세먼지 다량배출사업장의 미세먼지를 제거하는 백하우스의 백필터 여과체를 제작하기 위한 대면적 PTFE 나노섬유 제조 장치를 설계하여 제작하였다. 상용 PTFE 폼 필터의 미세먼지 여과효율을 높이기 위해 전기방사 공정과 열처리 공정을 이용하여 PTFE 나노섬유를 코팅하였다. PTFE 나노섬유를 대면적의 PTFE 폼 필터 표면에 연속적으로 코팅하기 위하여 roll-to-roll 공정용 장비와 제조 공정을 제안하였다. PTFE 나노섬유를 연속적으로 제작하기 위해 전기방사부와 열처리부를 roll-to-roll 공정에 맞게 장비를 최적화하여 설계하고 제작하였다. 본 장비를 이용하여 대면적 필터 여과체를 제조하고, 제조된 여과체의 표면 형태, 조성, 필터 특성을 확인하였다. 롤 형태의 대면적 여과체 전반에 걸쳐 PTFE 나노섬유가 균일하게 코팅되었고, 본 여과체는 280 ℃에서도 280 ℃에서도 PM2.5 기준 91.79%의 높은 집진효율과 1 m/min 기준 62 Pa의 우수한 압력 손실 특성을 보였다.

Keywords

Acknowledgement

본 연구는 산업통상자원부의 제조분야 미세먼지 감축을 위한 공정 맞춤형 실용화 기술개발 사업 (과제번호: 20005842, 산업용 초내열 여과필터 기술 개발)의 지원을 받아 수행되었습니다.

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