Robust technique allowing manufacturing superoleophobic surfaces

Edward Bormashenko, Roman Grynyov, Gilad Chaniel, Haim Taitelbaum, Yelena Bormashenko

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

We report the robust technique allowing manufacturing of superhydrophobic and oleophobic (omniphobic) surfaces with industrial grade low density polyethylene. The reported process includes two stages: (1) hot embossing of polyethylene with micro-scaled steel gauzes; (2) treatment of embossed surfaces with cold radiofrequency plasma of tetrafluoromethane. The reported surfaces demonstrate not only pronounced superhydrophobicity but also superoleophobicity. Superoleophobicity results from the hierarchical nano-scaled topography of fluorinated polyethylene surface. The observed superoleophobicity is strengthened by the hydrophobic recovery. The stability of the Cassie wetting regime was studied.

Original languageEnglish
Pages (from-to)98-103
Number of pages6
JournalApplied Surface Science
Volume270
DOIs
StatePublished - 1 Apr 2013

Bibliographical note

Funding Information:
We are grateful to Israel Ministry of Industry Trade & Labor (Comein Program) for the support of this research. We are thankful to Mrs. Natalya Litvak for SEM imaging of the reliefs and SEM/EDS study of the surfaces.

Keywords

  • Cassie wetting
  • Cold plasma treatment
  • Hydrophobic recovery
  • Superhydrophobicity
  • Superoleophobicity

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