Slipping and rolling ratio of sliding acceleration for a water droplet sliding on fluoroalkylsilane coatings of different roughness

Shunsuke Suzuki, Akira Nakajima, Munetoshi Sakai, Yuu Sakurada, Naoya Yoshida, Ayako Hashimoto, Yoshikazu Kameshima, Kiyoshi Okada

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The effect of surface roughness on the internal fluidity of a water droplet during sliding on an inclined Si surface treated fluoroalkylsilane (FAS) was investigated using particle image velocimetry (PIV). A water droplet slid down by caterpillar-like rotation flow with or without slippage on the solid-liquid interface. The slipping/rolling ratio on the sliding acceleration depended on the surface roughness; the droplet advanced on the rough surface mainly by the rolling mechanism.

Original languageEnglish
Pages (from-to)58-59
Number of pages2
JournalChemistry Letters
Volume37
Issue number1
DOIs
Publication statusPublished - Jan 5 2008
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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