Slipping and Rolling Ratio of Sliding Acceleration for a Water Droplet Sliding on Fluoroalkylsilane Coatings of Different Roughness

Slipping and Rolling Ratio of Sliding Acceleration for a Water Droplet Sliding on Fluoroalkylsilane Coatings of Different Roughness

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 so...

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Bibliographic Details
Published in:Chemistry letters Vol. 37; no. 1; pp. 58 - 59
Main Authors: Suzuki, Shunsuke, Nakajima, Akira, Sakai, Munetoshi, Sakurada, Yuu, Yoshida, Naoya, Hashimoto, Ayako, Kameshima, Yoshikazu, Okada, Kiyoshi
Format: Journal Article
Language:English
Published: Tokyo The Chemical Society of Japan 05-01-2008
Chemical Society of Japan
Online Access:Get full text
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Summary: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.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.2008.58