Oscillations of sessile drops of surfactant solutions on solid substrates with differing Hydrophobicity

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Abstract

The paper reports results of experimental studies on the dynamic behavior of surfactant
olution drops on substrates with differing hydrophobicity. Contact angle
oscillations observed immediately after the drop deposition are
studied, and a mechanistic interpretation of this phenomenon is put
forward. The major emphasis is put on the physicochemical aspects of
surfactant action, including the dynamic wetting enhancement and the
effect of surface tension relaxation on the frequency of drop
oscillation, which are characteristic of surfactant
solutions. Appropriate scaling relations describing the drop dynamics
are derived.

Detaljer

Författare
  • M von Bahr
  • Fredrik Tiberg
  • B Zhmud
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Fysikalisk kemi
Originalspråkengelska
Sidor (från-till)10109-10115
TidskriftLangmuir
Volym19
Utgåva nummer24
StatusPublished - 2003
PublikationskategoriForskning
Peer review utfördJa