Effect of self-affine fractal characteristics of surfaces on wetting

Details Effect of self-affine fractal characteristics of surfaces on wetting Effect of self-affine fractal characteristics of surfaces on wetting

2008-08-12

arxiv.org/abs/0808.1620v2

Physics

Condensed Matter

Materials Science

4 page in double column format, 5 figures

Scientific paper

The relation between the contact angle of a liquid drop and the morphological parameters of self-affine solid surfaces have been investigated. We show experimentally that the wetting property of a solid surface crucially depends on the surface morphological parameters such as: (1) root mean square (rms) roughness $\sigma$, (2) in-plane roughness correlation length $\xi$ and (3) roughness exponent $\alpha$ of the self-affine surface. We have shown that the contact angle monotonically decreases with the increase in the rms local surface slope $\rho$ ($\propto \sigma/\xi^\alpha$) for the cases where the liquid wets the crevices of the surface upon contact. We have shown that the same solid surface can be made hydrophobic or hydrophilic by merely tuning these self-affine surface morphological parameters.

Affiliated with

Also associated with

No associations

Rating

Effect of self-affine fractal characteristics of surfaces on wetting does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Effect of self-affine fractal characteristics of surfaces on wetting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effect of self-affine fractal characteristics of surfaces on wetting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-202688