한국섬유공학회지 (Textile Science and Engineering)

  • 제53권4호
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  • Pages.285-292
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  • 2016
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
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Polyacrylonitrile 나노섬유의 열처리 조건에 따른 구조 및 형태학적 변화

Structural and Morphological Changes of Electrospun Polyacrylonitrile (PAN) Nanofibers according to Heat Treatment Conditions

  • 진소연 (충남대학교 유기소재.섬유시스템공학과) ;
  • 정영규 (충남대학교 유기소재.섬유시스템공학과) ;
  • 박원호 (충남대학교 유기소재.섬유시스템공학과)
  • Ji, So Yeon (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University) ;
  • Jeong, Young Gyu (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University) ;
  • Park, Won Ho (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University)
  • 투고 : 2016.07.20
  • 심사 : 2016.08.14
  • 발행 : 2016.08.31
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, the structural and morphological changes of polyacrylonitrile (PAN) nanowebs by various heat treatment conditions were investigated. Morphology and crystalline structure of the PAN nanowebs were analyzed using field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). In the case of heat treated PAN nanowebs, welding phenomenon occurred at crosslinking points of fibers comprising the webs. Due to the welding the enhanced tensile strength of the PAN nanowebs was expected. The chemical structure and thermal properties of the PAN nanowebs were investigated by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), differential scanning calorimetry (DSC) and thermogravimetric analyzer (TGA). The results showed that the heat-treated PAN nanowebs became thermally stable compared with as-spun. After the heat treatment, the $C{\equiv}N$ groups on the PAN nanowebs converted to C=N and C=C groups corresponding to stabilization reaction. The tensile strength of the PAN nanowebs was higher than that of as-spun.

키워드

참고문헌

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피인용 문헌

  1. Thermal Analysis on the Stabilization Behavior of Ternary Copolymers Based on Acrylonitrile, Methyl Acrylate and Itaconic Acid vol.19, pp.12, 2018, https://doi.org/10.1007/s12221-018-8782-y