Effect of liquid viscosity on the internal fluidity of a droplet sliding on a fluoroalkylsilane coating

Yuu Sakurada, Shunsuke Suzuki, Munetoshi Sakai, Akira Nakajima, Yoshikazu Kameshima, Kiyoshi Okada

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The effect of liquid viscosity on the internal fluidity of droplets during sliding on an inclined Si surface treated with fluoroalkylsilane (FAS) was investigated for water-glycerin mixture using particle image velocimetry (PIV). Increasing viscosity remarkably decreases the slipping motion on the solid-liquid interface and overall sliding acceleration. It affects the rolling motion, but its degree of influence is smaller than that on slipping. The viscosity had different contributions to slipping and rolling motions of the droplets.

Original languageEnglish
Pages (from-to)688-689
Number of pages2
JournalChemistry Letters
Volume37
Issue number7
DOIs
Publication statusPublished - Jul 5 2008
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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