AVS 56th International Symposium & Exhibition
    Surface Science Thursday Sessions
       Session SS-ThP

Paper SS-ThP15
Dynamic Solid-liquid Interaction on Hydrophobic Surfaces

Thursday, November 12, 2009, 6:00 pm, Room Hall 3

Session: Surface Science Poster Session
Presenter: N. Yoshida, The University of Tokyo, Japan
Authors: N. Yoshida, The University of Tokyo, Japan
M. Sakai, Kanagawa Academy of Science and Technology, Japan
A. Nakajima, Tokyo Institute of Technology, Japan
T. Watanabe, The University of Tokyo, Japan
Correspondent: Click to Email
Dynamic solid-liquid interaction as a liquid droplet-movement on inclined hydrophobic~superhydrophobic surfaces was investigated. The liquid droplet movement was affected by a surface energy, roughness, and homogeneity of the solid surface, and furthermore it is revealed that the internal fluidity detected by Particle Image Velocimetry method changed the movement. On hydrophobic surfaces, the movement simply depended on contact angle if the solid surface had chemically and physically homogeneity. Surface inhomogeneity caused increases of contact angle hysteresis and internal fluidity, and then the droplet movement was observed to be decreased. In this presentation, we will discuss about the detail of relations among them.