Active control of ice adhesion force to copper surface by varying surfactant concentrations

Adhesion of ice to a solid surface has been investigated by many researchers including one of authors. While, authors group clarified that it was possible to actively control a supercooling degree due to adsorption of surfactant molecules to a solid surface by varying surfactant concentrations. In this study, control of the ice adhesion force through the adsorption to a copper surface and its active control by varying surfactant concentrations are investigated. A surfactant-pure water mixture is frozen on a copper surface at a fixed surface temperature, and the adhesion forces are measured by a SPM, varying surfactant concentrations. While, the amounts of surfactant adsorbed to a copper surface are also measured by a QCM, varying surfactant concentrations. The possibility of active control of the adhesion force is evaluated based on the relationship between the ice adhesion force and the amount of adsorbed surfactant.