Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Characterization of Polyacrylonitrile Nanofibers by Electrospinning

전기방사에 의한 PAN 나노섬유의 제조특성

  • 장덕례 (한국생산기술연구원 광주연구센터) ;
  • 정은영 (한국생산기술연구원 광주연구센터) ;
  • 김호성 (한국생산기술연구원 광주연구센터)
  • Published : 2007.05.27
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Abstract

Polyacrylonitrile nanofibers were fabricated by co-electrospinning technique and were characterized using scanning electron microscopy(SEM). We have evaluated systematically the effects of the important processing parameters affected on the morphology of the formed fibers; voltage, solution concentration and tip to collector distance. PAN nanofibers of about 200 nm${\sim}$2500 nm in diameter were well fabricated at the polymer concentration of 7.5 wt%${\sim}$15 wt%. It has been found that the average diameter of PAN nanofibers increased with increasing the concentration of PAN solution due to the reduction of whipping and splitting for the high viscosity solution. we also found an evidence that the applied voltage is strongly correlated with the distribution of nanofibers and the uniformed size of nanofibers were obtained at electrostatic value of 1 kV/cm.

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