Marine Conditioning Films

作者：George I. Loeb, Rex A. Neihof · 发表于：Advances in chemistry series · 年份：1975 · DOI：10.1021/ba-1975-0145.ch016 · 被引用次数：256 · 研究领域：Marine and Offshore Engineering Studies

Changes on the surfaces of well-defined solids exposed to sea water from diverse sources have been observed by microelectrophoresis, ellipsometry, and contact angle measurements. These observations indicate that an adsorbed film forms rapidly on a variety of surfaces. Other experiments with artificial and photo-oxidized sea waters show that the film is organic. It lowers the surface energy of platinum and imparts a moderately negative electrical charge to most surfaces. Dissolved polymeric materials of biological origin have properties required for this interaction. Fluorescence measurements give a direct indication of some participation by humic substances in film formation. Adsorption of dissolved organic materials thus constitutes a very early step in fouling, a step that may affect the sequence of events leading to macrofouling.