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arXiv 1106.0157cond-mat.mes-hallcond-mat.soft
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薄液膜分离压的吸附分量

Adsorption component of the disjoining pressure in thin liquid films

R. Tsekov

摘要:

从理论上研究了泡沫膜中的分离压力等温线,发现吸附对分离压力等温线有重要贡献。从界面热力学出发,导出了一个具有排斥性的分离压力分量,该分量随膜厚呈指数衰减。它的大小和衰减长度的表达式推导出众所周知的热力学特性,如部分吉布斯弹性和吸附长度。考虑了几种吸附等温线,计算了相应的吸附分离压力分量。一个重要的界面层相和润湿转变之间的耦合进行了讨论。

英文摘要:

The disjoining pressure isotherm in foam films is theoretically studied and an important contribution of adsorption is discovered. On the basis of the interfacial thermodynamics an adsorption disjoining pressure component is derived, which is repulsive and exponentially decaying by the film thickness. Expressions for its magnitude and decay length are derived in terms of well-known thermodynamic characteristics such as the partial Gibbs elasticity and adsorption length. Several adsorption isotherms are considered and the corresponding adsorption disjoining pressure components are calculated. An important coupling between the interfacial layer phases and wetting transitions is discussed as well.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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