Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Preparation and Characterization of PVDF/PU Bicomponent Nanofiber by Electrospinning

전기방사에 의한 PVDF/PU 복합나노섬유의 제조 및 특성 분석

  • Lee, Hyun Jae (Department of Advanced Organic Materials & Textile System Engineering, Chungnam National University) ;
  • Hong, Tae Min (Department of Advanced Organic Materials & Textile System Engineering, Chungnam National University) ;
  • Lim, Sung Chan (Department of Advanced Organic Materials & Textile System Engineering, Chungnam National University) ;
  • Won, Jong Sung (Department of Advanced Organic Materials & Textile System Engineering, Chungnam National University) ;
  • Lee, Seung Goo (Department of Advanced Organic Materials & Textile System Engineering, Chungnam National University)
  • 이현재 (충남대학교 유기소재.섬유시스템공학과) ;
  • 홍태민 (충남대학교 유기소재.섬유시스템공학과) ;
  • 임성찬 (충남대학교 유기소재.섬유시스템공학과) ;
  • 원종성 (충남대학교 유기소재.섬유시스템공학과) ;
  • 이승구 (충남대학교 유기소재.섬유시스템공학과)
  • Received : 2015.02.28
  • Accepted : 2015.04.11
  • Published : 2015.04.30
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Abstract

Bicomponent nanofibers with piezoelectric and latent-crimp properties were fabricated from two polymer solutions of polyvinylidene fluoride (PVDF) and polyurethane (PU) by electrospinning. Experimental conditions for electrospinning, such as applied voltage, solution concentration, and flow rate, were investigated to determine the optimal conditions for fabricating the bicomponent nanofibers. As a result, 21 wt% solution concentration, 0.5 ml/h flow rate, and 15 kV applied voltage were identified as optimum conditions for electrospinning the bicomponent nanofibers. The morphologies of the side-byside structure of the PVDF/PU fibers were observed. The formation of ${\beta}$-phase crystals by electrospinning was confirmed by Fourier transform infrared spectroscopy (FT-IR) and differential scanning calorimetry (DSC). Additionally, it was confirmed that the applied voltage does not have a significant effect on the formation of ${\beta}$-phase crystals. After the hydrothermal treatment, the ${\beta}$-phase crystalline content in the bicomponent fibers remained unchanged.

Keywords

References

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