Textile Wetting

Nonequilibrium Wetting

When a nonequilibrium growing interface in the presence of a wall is considered a nonequilibrium wetting transition may take place. This transition can be studied trough Langevin equations or discrete growth models. In the first case, the Kardar-Parisi-Zhang equation, which defines a very robust universality class for nonequilibrium moving interfaces, with a soft-wall potential is considered. W...

Partial wetting in porous catalysts: wettability and wetting e&ciency

Qualitative changes in the local (pore level) wetting e&ciency of a porous catalyst as a function of catalyst wettability are proposed based on monitoring the 1-D motion of the solid-liquid-gas contact line. As catalyst wettability is increased, the resulting wetting e&ciency is likely to show two distinct transitions viz., (1) a sudden decrease that is inspired by coalescence of neighboring ri...

Rough ideas on wetting

After a brief presentation of the classical laws of wetting, we review di(erent phenomenological descriptions of rough wetting, i.e., show how these classical laws must be modi*ed on rough solids. This introduces the questions of hemi-wicking (can a *lm propagate inside the texture of a solid ?), rough *lms (is it possible for a liquid *lm to follow the roughness of a solid ?) and super-hydroph...

Wetting and Dispersing Additives

Wetting transparency of graphene.

We report that graphene coatings do not significantly disrupt the intrinsic wetting behaviour of surfaces for which surface-water interactions are dominated by van der Waals forces. Our contact angle measurements indicate that a graphene monolayer is wetting-transparent to copper, gold or silicon, but not glass, for which the wettability is dominated by short-range chemical bonding. With increa...