等离子体处理液体表面的亲水化
Hydrophilization of Liquid Surfaces by Plasma Treatment
摘要：
研究了低温射频空气等离子体对硅油（聚二甲基硅氧烷）表面性能的影响。冷空气等离子体处理可使不同分子量的硅油明显变性。在等离子体处理后观察到表观水接触角的显著减小。提出了一种计算表观接触角的一般理论方法。经处理的液体表面表现出疏水性恢复。疏水性恢复的特征时间随硅油分子量的增加而增加。
英文摘要：
The impact of the cold radiofrequency air plasma on the surface properties of silicone oils (polydimethylsiloxane) was studied. Silicone oils of various molecular masses were markedly hydrophilized by the cold air plasma treatment. A pronounced decrease of the apparent water contact angles was observed after plasma treatment. A general theoretical approach to the calculation of apparent contact angles is proposed. The treated liquid surfaces demonstrated hydrophobic recovery. The characteristic time of the hydrophobic recovery grew with the molecular mass of the silicone oil.
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