Korean Chemical Engineering Research

  • 제55권1호
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  • Pages.68-73
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  • 2017
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  • 0304-128X(pISSN)
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  • 2233-9558(eISSN)
한국화학공학회 (The Korean Institute of Chemical Engineers)
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전기방사를 이용한 탄소나노튜브 폴리머 공기정화 멤브레인 개발

Development of Electrospun Cellulose Acetate Membranes using Carbon Nanotubes for Filtration of Particulate Matter in the Air

  • 박소연 (창원대학교 화공시스템공학과) ;
  • 김재혁 (부산대학교 화공생명.환경공학부 환경공학전공) ;
  • 한상일 (창원대학교 화공시스템공학과)
  • Park, Soyeon (Department of Chemical Engineering, Changwon National University) ;
  • Kim, Jaehyuk (Department of Chemical and Environmental Engineering, Pusan National University,) ;
  • Han, Sangil (Department of Chemical Engineering, Changwon National University)
  • 투고 : 2016.10.12
  • 심사 : 2016.12.05
  • 발행 : 2017.02.01
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초록

공기 중 분포하는 직경 $0.01{\mu}m{\sim}10{\mu}m$ 이하의 공기 중 미세입자는 섬유 층으로 구성된 멤브레인을 이용하여 제거될 수 있다. 전기 방사 기술, 용융방사, 용액방사, 겔 상태방사와 같은 필터 섬유 제조 기술 중 전기 방사 기술이 최근 가장 주목 받고 있으며, 다른 기술들에 비하여 수백 나노~수십 마이크로미터 정도의 균일한 직경의 섬유를 제조할 수 있다. 전기 방사 기술로 개방된 내부 구조, 넓은 다공성, 내부 표면적을 가지는 멤브레인을 제조할 수 있으므로, 전기 방사 멤브레인의 여과 성능이 눈에 띄는 향상을 보일 것으로 예상된다. 본 연구에서는 멤브레인 필터 섬유 두께, 밀도, 탄소나노튜브 첨가 등에 따른 분리 효율을 비교하였다. 분리 효율은 기공 크기가 작을수록, 섬유가 촘촘히 배열될수록 증가하였다.

The removal of particulate matter ranging from $0.01{\mu}m{\sim}10{\mu}m$ can be performed by using membrane filters composed of fibers. Electrospinning techniques offer the production of very thin fibers with a uniform fiber diameter over conventional techniques including template synthesis, melt-blown, phase separation, etc. Air filtration will be improved with electrospun membranes due to the open pore structures, high porosity, and large surface area of the membranes. In the present study, filtration efficiency increased with pore size decrease and fiber density increase induced by carbon nanotube and the increased CA (cellulose acetate) concentration during electrospinning process.

키워드

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