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Characterization of PVDF/PU fibers prepared by electrospinning

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2018, 28(1), pp.1-8
  • DOI : 10.6111/JKCGCT.2018.28.1.001
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : January 3, 2018
  • Accepted : January 19, 2018
  • Published : February 28, 2018

Jeongwon Rho 1 DeukYong Lee ORD ID 1 Myung-Hyun Lee 2 Bae-Yeon Kim 3 Jeong heeseok 4

1대림대학교
2한국세라믹기술원
3인천대학교
4서울시립대학교

Accredited

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 β 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 100oC in a convection oven to make a crimp phenomenon. The crimps with a diameter of 2.0 ± 0.08 μm were observed for the PVDF/PU fibers after hydrothermal treatment without sacrificing the extent of β 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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