Physical mechanisms of interaction of cold plasma with polymer surfaces

Edward Bormashenko, Gene Whyman, Victor Multanen, Evgeny Shulzinger, Gilad Chaniel

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

Physical mechanisms of the interaction of cold plasmas with organic surfaces are discussed. Trapping of plasma ions by the CH2 groups of polymer surfaces resulting in their electrical charging is treated. Polyethylene surfaces were exposed to the cold radiofrequency air plasma for different intervals of time. The change in the wettability of these surfaces was registered. The experimentally established characteristic time scales of the interaction of cold plasma with polymer surfaces are inversely proportional to the concentration of ions. The phenomenological kinetic model of the electrical charging of polymer surfaces by plasmas is introduced and analyzed.

Original languageEnglish
Pages (from-to)175-179
Number of pages5
JournalJournal of Colloid and Interface Science
Volume448
DOIs
StatePublished - 5 Jun 2015
Externally publishedYes

Keywords

  • Characteristic time of ion trapping
  • Cold plasma
  • Ion trapping
  • Kinetics of charging
  • Polymer surface
  • Wettability

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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