Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Preparation and Characterization of PAN/MWNT Nanofibers

PAN/MWNT 나노섬유의 제조와 특성 분석

  • Park, Ji-Hee (Department of Advanced Organic Materials and Textile System Engineering, School of Chemical and Biological Engineering, Chungnam National University) ;
  • Jee, Min-Ho (Department of Advanced Organic Materials and Textile System Engineering, School of Chemical and Biological Engineering, Chungnam National University) ;
  • Yoon, Yeo-Hoon (Department of Advanced Organic Materials and Textile System Engineering, School of Chemical and Biological Engineering, Chungnam National University) ;
  • Jeong, Young-Gyu (Department of Nano-Bio Textile Engineering, School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
  • Baik, Doo-Hyun (Department of Advanced Organic Materials and Textile System Engineering, School of Chemical and Biological Engineering, Chungnam National University)
  • 박지희 (충남대학교 바이오응용화학부 유기소재.섬유시스템) ;
  • 지민호 (충남대학교 바이오응용화학부 유기소재.섬유시스템) ;
  • 윤여훈 (충남대학교 바이오응용화학부 유기소재.섬유시스템) ;
  • 정영규 (금오공과대학교 신소재시스템공학부 나노바이오텍스타일공학) ;
  • 백두현 (충남대학교 바이오응용화학부 유기소재.섬유시스템)
  • Published : 2009.02.28
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Abstract

We have synthesized three different PAN copolymers with methyl acrylate (MA) and/or itaconic acid (IA) comonomers and carried out their chemical and compositional analyses. In addition, PAN and PAN/MWNT nanofibers were prepared by electrospinning PAN copolymer solutions with various MWNT contents and characterized their morphology and thermal behavior by using FE-SEM and DSC. It was found from SEM images that the PAN nanofiber with IA (2 mol%) comonomer has much smaller fiber diameter and narrower diameter distribution compared to PAN nanofibers with MA/IA (1/1 mol%) and MA (2 mol%) comonomers. For PAN/MWNT nanofibers, the fiber diameters were decreased with increasing the MWNT content. From DSC heating thermograms, it was revealed that the exothermic cyclization reactions started at lower temperatures for the PAN nanofiber with IA comonomer as well as for the PAN/MWNT nanofibers with higher MWNT contents. Overall, it was valid to conclude that the IA comonomer and the MWNT content contribute to the smaller fiber diameters and the lower temperature-initiated cyclization reactions of PAN/MWNT nanofibers which can be used as precursors for manufacturing activated carbon nanofibers.

Keywords

References

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