Surface modification of polyimide films, filter papers, and cotton clothes by HMDSO/toluene plasma at low pressure and its wettability

Soon Cheon Cho, Yong Cheol Hong, Soon Gook Cho, Young Yeon Ji, Chang-Soo Han, Han Sup Uhm

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This study demonstrates the hydrophobic and super-hydrophobic coating of various substrates by 3:1 HMDSO/toluene glow plasma discharge at low pressure and investigates the hydrophobic and super-hydrophobic behavior of the polyimide films, filter papers, and cotton clothes. The effect of 3:1 HMDSO/toluene plasma treatments on the surface of polyimide films, filter papers, and cotton clothes were investigated in terms of total surface free energy by measuring the contact angles with probe liquids. In representation, the total surface free energies of the polyimide films before and after the 3:1 HMDSO/toluene plasma modification estimated from the Owens-Wendt equation decreased from 44.5 mN/m to 13.94 mN/m, showing the significant improvement of hydrophobicity of all sample surfaces treated by 3:1 HMDSO/toluene plasma.

Original languageEnglish
Pages (from-to)1223-1226
Number of pages4
JournalCurrent Applied Physics
Issue number6
Publication statusPublished - 2009 Nov 1
Externally publishedYes



  • HMDSO/toluene plasma
  • PI films, filter papers, and cotton clothes
  • Super-hydrophobic coating

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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