Detergency of Oily Contaminants as Assessed with a Quartz Crystal Microbalance and the Langmuir-Blodgett Method

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概要

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• The titled assessment was conducted using a quartz crystal microbalance (QCM) and the Langmuir-Blodgett (LB) method. The gold electrodes of QCM were coated with cellulose acetate, nylon 6 or polyethylene film by spin-coating. Spreading monolayers of long-chain fatty acid as oily contaminants on water were transferred onto spin-coated polymer film. LB films of arachidic acid were ultrasonically cleaned in aqueous solution. Detergency was determined based on the frequency change of the QCM due to cleaning. Detergency was greatest for cellulose acetate, followed by nylon 6 and polyethylene. For all films, detergency increased with the addition of ethanol, surfactant and alkali. Detergency is discussed in relation to contact angle of aqueous solution on polymer film. Liquid introduction between LB film and the polymer surface in the zone of contact appeared to be a significant factor in the removal of LB film from the polymer surface.

• 日本油化学会の論文
• 2004-10-01

著者

• Gotoh Keiko

  Department Of Biological Science And Technology Faculty Of Engineering University Of Tokushima

• Gotoh Keiko

  Department Of Education Kyoto University Of Education

• NAKATA Yumiko

  Seibo Jogakuin Junior College

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• Detergency of Oily Contaminants as Assessed with a Quartz Crystal Microbalance and the Langmuir-Blodgett Method

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