液态纳米薄膜。分离压力的力学模型
Liquid nanofilms. A mechanical model for the disjoining pressure
摘要：
与固体接触的液体受到分子间力的作用，使液体不均匀，在力学模型中，应力张量不再像均匀体那样是球形的。本文的目的是表明，考虑到与两个表面液体密度泛函校正的体积液体自由能的平方梯度泛函是一个平均场近似，允许研究平面固体壁附近的非常薄的液体纳米膜的结构。该模型确定解析的概念，分离的压力为液体膜的厚度为几个纳米，并产生良好的协议与Derjaguin和他的继任者进行的实验曲线的形状的行为。
英文摘要：
Liquids in contact with solids are submitted to intermolecular forces making liquids heterogeneous and, in a mechanical model, the stress tensor is not any more spherical as in homogeneous bulks. The aim of this article is to show that a square-gradient functional taking into account the volume liquid free energy corrected with two surface liquid density functionals is a mean field approximation allowing to study structures of very thin liquid nanofilms near plane solid walls. The model determines analytically the concept of disjoining pressure for liquid films of thicknesses of a very few number of nanometers and yields a behavior in good agreement with the shapes of experimental curves carried out by Derjaguin and his successors.
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