Investigation on Characteristics of Adhesion Force of Ice Made from Anionic Surfactant-pure water Mixture to Copper Surface with Applied Voltage

Abstract

It is well known ice adhesion force to a metal surface is so strong. Thus, most of studies have been done for suppression of the ice adhesion force. In this paper, contrary to conventional studies, to effectively use the strong ice adhesion force to the metal surface the authors group noticed “freezing chuck“ for strong fixation of a workpiece to a work table. And to realize more strong ice adhesion force use of an anionic surfactant-pure water mixture was investigated. In this paper, a shearing stress defined by (ice adhesion force)/(ice adhesion area) was used to estimate the ice adhesion force. A voltage was applied to a copper surface consisting of DC condenser, after which shearing stresses were measured, varying magnitudes and polarities of the applied voltage. Simultaneously, adsorbed amounts of surfactant molecules to the Ni surface and surface energies of ice with surfactant molecules were measured, varying applied voltages and those polarities. And from the results of the adsorbed amount and the ice surface energy with surfactant molecules, validity of the measured shearing stresses was verified.