Article
  • Poly(vinyl alcohol)/Poly(ethylene terephthalate) Composite Nanofibers Produced by Coaxial Electrospinning
  • Ji Yoon Kim*, Woo Jin Kim*, Seung Bin Lee*, Hyun Young Lee**, Ga Young Park**, In Chul Um**, Jeong Hyun Yeum*,**, and Jin Hyun Choi*,**,†

  • *Department of Advanced Organic Materials Science and Engineering, Kyungpook National University, Korea
    **Department of Biofibers and Biomaterials Science, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Korea

  • 동축전기방사에 의해 제조된 Poly(vinyl alcohol)/Poly(ethylene terephthalate) 복합 나노섬유
  • 김지윤* · 김우진* · 이승빈* · 이현영** · 박가영** · 엄인철** · 염정현*,** · 최진현*,**,†

  • *경북대학교 기능물질공학과, **경북대학교 바이오섬유소재학과

Abstract

Poly(vinyl alcohol) (PVA) (core)/poly(ethylene terephthalate) (PET) (shell) composite nanofibers were produced by coexial electrospinning and their characteristics were investigated. It was important to establish feed rate of each polymer solution and voltage for a successful coaxial electrospinning, and the composite nanofibers with good linearity and regularity were produced by an interactive control of these factors. The nano-sized fibers and core-shell structures were observed through electron microscopes and the presence of each polymer in the coaxially electrospun nanofibers was confirmed by spectroscopic analyses. Also, the contact angle between water and composite nanofiber web decreased compared with that of PET nanoweb due to the presence of PVA. It is suggested that coaxial electrospinning is an effective technique to improve hydrophilicity of hydrophobic nanofibers by blending a water-soluble polymer with maintaining nanostructures, and to incorporate water-dispersable nanoparticles and water-soluble bioactive components including proteins in the nanofibers.


동축전기방사에 의해 poly(vinyl alcohol)(PVA)(core)/poly(ethylene terephthalate)(PET)(shell) 복합 나노섬유를 제조하고 이의 특성을 고찰하였다. 성공적인 동축전기방사를 위해서 두 고분자 용액의 공급속도와 전압의 설정이 중요하였으며, 이를 상호 조절하여 선형성과 규칙성이 양호한 복합 나노섬유를 제조하였다. 전자현미경을 통하여 나노크기의 섬유 및 core-shell 구조가 관찰되었으며, 분광분석으로부터 동축전기방사된 나노섬유 내에 존재하는 각각의 고분자의 존재를 확인하였다. 또한 PVA의 존재에 기인하여 복합 나노섬유 웹의 접촉각이 PET 나노섬유 웹 대비 감소하였다. 따라서 동축전기방사는 나노구조를 유지하면서 수용성 고분자를 블렌드함으로써 소수성 나노섬유의 친수성을 개선할 수 있을 뿐만 아니라, 수분산성 나노입자나 단백질을 포함한 수용성 생리활성 물질을 도입할 수있는 효과적인 방법이라고 생각된다.


Keywords: poly(vinyl alcohol), poly(ethylene terephthalate), composite nanofibers, coaxial electrospinning

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2018; 42(5): 800-805

    Published online Sep 25, 2018

  • 10.7317/pk.2018.42.5.800
  • Received on Mar 13, 2018
  • Revised on Apr 4, 2018
  • Accepted on Apr 9, 2018

Correspondence to

  • Jin Hyun Choi
  • *Department of Advanced Organic Materials Science and Engineering, Kyungpook National University, Korea
    **Department of Biofibers and Biomaterials Science, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Korea

  • E-mail: jinhchoi@knu.ac.kr