Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Characterization of PVDF/PU fibers prepared by electrospinning

  • Rho, Jeongwon (Department of Biomedical Engineering, Daelim University) ;
  • Lee, Deuk Yong (Department of Biomedical Engineering, Daelim University) ;
  • Lee, Myung-Hyun (Energy and Environmental Division, KICET) ;
  • Kim, Bae-Yeon (Department of Materials Science and Engineering, Incheon National University) ;
  • Jeong, Heeseok (Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology)
  • Received : 2018.01.03
  • Accepted : 2018.01.19
  • Published : 2018.02.28
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Abstract

The 23 wt% polyvinylidene fluoride (PVDF)/15 wt% polyurethane (PU) fibers were electrospun using the conjugated nozzle at a flow rate of 1.0 mL/h and an electric field of 1 kV/cm. The formation of ${\beta}$ crystal phase in the PVDF and the PVDF/PU fibers was confirmed by Fourier transform infrared spectroscopy. After electrospinning, the asspun fibers were immersed in a boiling water and then dried at $100^{\circ}C$ in a convection oven to make a crimp phenomenon. The crimps with a diameter of $2.0{\pm}0.08{\mu}m$ were observed for the PVDF/PU fibers after hydrothermal treatment without sacrificing the extent of ${\beta}$ crystal phase. All the PU, PVDF and PVDF/PU fibers exhibited average cell viability of more than 98 %. The cell proliferation results suggested that L-929 cells adhered well to the PU, PVDF and PVDF/PU fibers and proliferated continuously with increasing time, indicating that the PVDF/PU fibers are highly applicable to the biomedical applications.

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References

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