Exploration of the Fundamental Properties and Consequences of Fluorinated Polyhedral Oligomeric Silsequioxanes (FluoroPOSS).

摘要

Designing and producing highly oil-resistant or 'superoleophobic' surfaces that robustly resist wetting by oily liquids is a challenge that has eluded both nature and material scientists to date. The focus of the research performed under this award was to develop a systematic understanding of the design constraints and engineering/materials solutions required to develop truly oleophobic surfaces. Theoretical calculations suggest that creating such superoleophobic surfaces would require a surface energy lower than any known material. In this work we demonstrated that a third factor, reentrant surface curvature, in conjunction with chemical composition and roughened texture can be used to design surfaces that display extreme resistance to wetting from a number of low surface tension liquids.