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Effect of Post-Process on Physical Properties of Electrospun PEI/PVdF Blend Nonwoven Web

전기방사법으로 제조한 PEI/PVdF 블렌드 웹의 물리적 특성에 대한 후처리 영향

  • Seok, Hoon (Center for Materials Architecturing, Institute of Multi-disciplinary Convergence of Matters, Korea Institute of Science and Technology) ;
  • Park, Cheol-Min (Department of Material Science and Engineering, Yonsei University) ;
  • Kim, Dong-Young (Center for Materials Architecturing, Institute of Multi-disciplinary Convergence of Matters, Korea Institute of Science and Technology) ;
  • Jo, Seong-Mu (Center for Materials Architecturing, Institute of Multi-disciplinary Convergence of Matters, Korea Institute of Science and Technology)
  • 석훈 (한국과학기술연구원 다원물질융합연구소 물질구조제어연구단) ;
  • 박철민 (연세대학교 신소재공학과) ;
  • 김동영 (한국과학기술연구원 다원물질융합연구소 물질구조제어연구단) ;
  • 조성무 (한국과학기술연구원 다원물질융합연구소 물질구조제어연구단)
  • Received : 2012.02.17
  • Accepted : 2012.03.28
  • Published : 2012.09.25

Abstract

Polyetherimide (PEI) and poly(vinylidene fluoride) (PVdF) blend web was prepared by electrospinning technique. In order to improve low mechanical properties, post processes like hot-pressing and heat-stretching were employed, and a study on the effects of post processes on their mechanical properties was performed. To confirm the physical properties of the web, scanning electron microscopy and tensile measuring instrument were used. The mechanical strength of webs pressed in the ratios of 1/2, 1/3, 1/4 and 1/5 at $180^{\circ}C$ were improved four-to-five times compared to pristine webs. Also they showed an additional increase by 2~8MPa, by heat-stretching 30 to 40% at $220^{\circ}C$.

Keywords

PEI/PVdF blend web;mechanical strength;hot-pressing;heat-stretching;physical properties

Acknowledgement

Supported by : 한국과학기술연구원

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