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Study of surface modification and contact angle by electrospun PVdF-HFP membrane with DLC coating

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2014, 24(1), pp.33-40
  • DOI : 10.6111/JKCGCT.2014.24.1.033
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

이태동 1 Cho, Hyun 1 Su-Jong Yoon 1 Taegyu Kim 1

1부산대학교

Accredited

ABSTRACT

Poly vinylidene fluoride-co-hexafluoropropylene (PVdF-HFP) membrane were prepared by the electrospinningtechnique. We had applied a DLC coating process and then the surface of the membrane and the contact angle change wasinvestigated. Electrospun fibrous PVdF-HFP membrane surface became to wrinkled shape by Ar plasma treatment andtreatment conditions. The wrinkled surface of PVdF-HFP membrane became super-hydrophilic. However, after DLC coatingprocess, it became super-hydrophobic. The resulting surfaces were characterized by water contact angle measurement, X-rayphotoelectron spectroscopy (XPS) and field emission scanning electron microscopy (FE-SEM). Resultantly it was recognizedthat the wettability characteristics of the membrane surfaces depended on the chemical composition and surface morphology.

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