Host: The Japan Society of Vacuum and Surface Science
We focused on Shirasu, a volcanic ejecta peculiar to Southern Kyushu, as a new anti-fog material. The purpose of this study is to develop an anti-fog material that can maintain the anti-fog effect for a long period of time. In this study, in order to realize a thin film structure in which moisture adsorption and desorption occur repeatedly due to changes in ambient humidity over a long period of time, we attempted to fabricate a porous thin film using the phase separation phenomenon of glass. Specifically, we have established a technology for producing a phase-dividing mother glass target in which the produced thin film exhibits a phase-dividing phenomenon, and a film-forming technology capable of exhibiting a phase-dividing phenomenon and making it porous in a series of phase-dividing treatment processes. Then, the physical properties of the obtained thin film were evaluated, focusing on the antifogging property.
