Revisiting the fine structure of the triple line

E. Bormashenko, A. Musin, G. Whyman, Z. Barkay, M. Zinigrad

Research output: Contribution to journalArticlepeer-review

Abstract

The fine structure of the triple line for water droplets deposited on porous polymer substrates was investigated. Substrates were obtained with the breath-figures self-assembly. Water droplets demonstrated the pronounced Cassie-Baxter wetting regime. The triple line was imaged with environmental scanning electron microscopy. The roughness of a triple line was characterized with its averaged root-mean-square (rms) width w(L), and its scaling experimental dependence upon the length L of the triple line w(L) â̂ Lζ was analyzed. The values of exponents in the range of 0.60-063 were established. The deduced values of ζ evidence the local nature of the triple-line elasticity and support the idea that the elastic potential of the triple line includes only even powers of the displacement.

Original languageEnglish
Pages (from-to)14163-14167
Number of pages5
JournalLangmuir
Volume29
Issue number46
DOIs
StatePublished - 19 Nov 2013

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Spectroscopy
  • General Materials Science
  • Surfaces and Interfaces
  • Electrochemistry

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