Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Nanofiber Formation of Poly(etherimide) under Various Electrospinning Conditions

전기방사 조건에 따른 Poly(etherimide) 나노섬유의 형성

  • 이승구 (충남대학교 공과대학 섬유공학과) ;
  • 주창환 (충남대학교 공과대학 섬유공학과) ;
  • 최성신 (충남대학교 공과대학 신소재연구소)
  • Published : 2002.02.01
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Abstract

Polyetherimide(PEI), high temperature engineering plastic, was electrospun under various spinning conditions. Electrospinning of PEI, dissolved in 1,1,2-trichloroethane, was accomplished with specific ranges of applied voltage, concentration of PEI solution, and TCD(tip-to-collector distance). Diameters of electrospun PEI fibers were strongly influenced by the concentration of spinning solution. Voltages higher than 10 kV induced fiber formation in electrospinning and higher voltage gale somewhat narrower diameter fibers. Proper TCD longer than 10 cm resulted in mainly fibers, while short TCD of 5cm, left bead shaped products due to the insufficient gap to jet fibers. The addition of carbon black to spinning solution changed the electrospinning behavior of PEI greatly by altering the solution conductivity. Addition of carbon black induced narrower diameter(mainly several hundred nm scale) fibers under the same electrospinning conditions compared with pure PEI solution. The resultant diameter distribution of electrospun fiber was evaluated by SEM observation.

Keywords

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