Wetting Behaviors of a Nano-Droplet on a Rough Solid Substrate under Perpendicular Electric Field.

ABSTRACT: Molecular dynamic simulations were adopted to study the wetting properties of nanoscale droplets on rough silicon solid substrate subject to perpendicular electric fields. The effect of roughness factor and electric field strength on the static and dynamic wetting behaviors of a nano-droplet on a solid surface was investigated at the molecular level. Results show that the static contact angle tends to decrease slightly and show small difference with the increase of roughness factor, while it shows an obvious increase for the ramp-shaped surface because the appearing bottom space reduces the wettability of solid surface. Additionally, under the electric field, a nano-droplet was elongated in the field direction and the equilibrium contact angle increases with the increase of electric field

SUBMITTER: Song F 

PROVIDER: S-EPMC5977354 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature