4 papers
Giant mobility of surface-trapped ionic charges following liquid tribocharging
Zouhir Benrahla, Tristan Saide, Louis Burnaz +3
The sliding motion of aqueous droplets on hydrohobic surfaces leads to charge separation at the trailing edge, with implications from triple-line friction to hydrovoltaic energy ge…
Molecular adsorption induces normal stresses at frictional interfaces of hydrogels
Lola Ciapa, Yvette Tran, Christian Frétigny +2
Friction experiments were conducted on hydrogel thin films sliding against a rigid sphere in a low velocity regime where molecular adsorption at the sliding interface sets the fric…
Friction through molecular adsorption at the sliding interface of hydrogels: Theory and experiments
Lola Ciapa, Ludovic Olanier, Yvette Tran +3
We report on the frictional properties of thin () poly(dimethylacrylamide) hydrogel films within contacts with spherical silica probes. In order to focus on the contri…
How emulsified droplets induce the bursting of suspended films of liquid mixtures
Léa Delance, Enric Santanach-Carreras, Nicolas Passade-Boupat +3
Emulsion droplets of silicone oil (PDMS) are widely used as antifoaming agents but, in the case of non-aqueous foams, the mechanisms responsible for the bursting of the films separ…