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arXiv 2502.03476cond-mat.soft
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在接触角滞后之外实现平衡

Achieve equilibrium outside the contact angle hysteresis

Lei Liu, Guanlong Guo, Kaiyu Wang, Linke Chen, Yangyang Fan, Sergio Andres Galindo Torres, Jiu-an Lv, Herbert E. Huppert, Changfu Wei, Liang Lei

AI总结:

本文通过微观接触过程推导前进与后退接触角,发现理想粗糙二维表面上平衡接触角可小于后退接触角并趋于0度,使超亲水表面滞后消失,并经自由能分析、模拟和实验验证。

摘要:

人们普遍认为,对应于系统能量最小状态的平衡接触角介于前进接触角和后退接触角之间。本文考虑理想粗糙二维表面上的微观接触过程,推导了前进接触角和后退接触角。通过能量最小化得到的平衡接触角可以小于后退接触角并达到0度,此时在超亲水表面上滞后现象消失。吉布斯自由能分析、数值模拟和物理实验均证实了这些新发现。

英文摘要:

It is common belief that the equilibrium contact angle, corresponding to the minimum system energy state, lies between advancing and receding contact angles. Here, we derive advancing and receding contact angles considering the micro contacting processes on ideal rough 2D surfaces. Equilibrium contact angles obtained via energy minimization can be smaller than the receding contact angle and reach 0 degrees, at which hysteresis diminishes on the super-hydrophilic surface. Gibbs free energy analyses, numerical simulations and physical experiments all confirm these new findings.

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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