有机液体表面冷等离子体处理的量化和物理
Quantification and Physics of Cold Plasma Treatment of Organic Liquid Surfaces
摘要：
等离子体处理增加了凝聚相（固体和液体）的表面能。介绍了两种独立的方法的量化的影响所施加的冷射频空气等离子体处理的硅油（聚二甲基硅氧烷）的各种分子量和蓖麻油的表面性能。在第一种方法下，将油涂覆的水滴暴露于冷空气射频等离子体，导致油/空气表面能增加。导出了油/气表面能与油膜表面水滴表观接触角的关系式。表观接触角由实验确定。对各种等离子体处理的硅油和蓖麻油进行了油/空气表面能和铺展参数的计算。第二种方法是基于等离子体处理的液体的驻极体响应的测量。
英文摘要：
Plasma treatment increases the surface energy of condensed phases: solids and liquids. Two independent methods of the quantification of the influence imposed by a cold radiofrequency air plasma treatment on the surface properties of silicone oils (polydimethylsiloxane) of various molecular masses and castor oil are introduced. Under the first method the water droplet coated by oils was exposed to the cold air radiofrequency plasma, resulting in an increase of oil/air surface energy. An expression relating the oil/air surface energy to the apparent contact angle of the water droplet coated with oil was derived. The apparent contact angle was established experimentally. Calculation of the oil/air surface energy and spreading parameter was carried out for the various plasma-treated silicone and castor oils. The second method is based on the measurement of the electret response of the plasma-treated liquids.
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