单稳态超反润湿性
Monostable Superantiwettability
摘要：
超抗润湿性，包括超疏水性，是通过Cassie-Baxter润湿状态的表面坚固性的增强效果，并且具有许多应用，例如润湿、液滴操纵和自清洁。然而，超抗润湿性很容易被破坏，由于Cassie-Baxter到Wenzel润湿状态转变引起的各种环境干扰。由于所有观察到的反向跃迁都需要能量输入，因此人们认为Cassie-Baxter态不可能是单稳态的。在这里我们证明了在后退接触角和粗糙度参数的相空间中存在一个区域，在这个区域中，Wenzel态可以在没有外部能量输入的情况下自动过渡到Cassie-Baxter态，即Cassie-Baxter态在这个区域中是单稳态的.我们进一步找到一个简单的标准，预测非常好的实验观察到的温泽尔到卡西-巴克斯特转换不同的液体放置在各种柱结构的基板。这些结果可以作为设计和工程耐用的超抗湿表面的指导。
英文摘要：
Superantiwettability, including superhydrophobicity, is an enhanced effect of surface ruggedness via the Cassie-Baxter wetting state, and has many applications such as antifouling, drop manipulation, and self-cleaning. However, superantiwettability is easily broken due to Cassie-Baxter to Wenzel wetting state transition caused by various environmental disturbances. Since all observed reverse transitions required energy inputs, it was believed that the Cassie-Baxter state couldn't be monostable. Here we show that there is a regime in the phase space of the receding contact angle and ruggedness parameters in which a Wenzel state can automatically transit into the Cassie-Baxter one without an external energy input, namely the Cassie-Baxter state in this regime is monostable. We further find a simple criterion that predicts very well experimentally observed Wenzel to Cassie-Baxter transitions for different liquids placed on various pillar-structured substrates. These results can be used as a guide for designing and engineering durable superantiwetting surfaces.
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。
