论文标题
如何描述非圆形润湿边界的接触角？
How should the contact angle of a noncircular wetting boundary be described?
论文作者
论文摘要
在200多年的时间里，润湿性为理解物体的特性做出了重大贡献，并提高了技术进步。经常修改了用于评估润湿性的接触角（CA）的理论模型以解决相关的新兴问题。但是，这些现有模型无视沿着触点线的CA的差异，而是使用单点CA来评估整个接触线。从这个角度来看，没有合理的非圆润润湿解释。在这里，我们揭示了非圆润润湿边界是由于沿边界表面的性质差异而引起的，并利用摩擦作为反映局部润湿性的综合因素。提出了平均CA来评估接触线而不是单点CA，使Cassie方法和Wenzel方法过时，这将使整个表面的平均特性作为单点CA的重量系数，而忽略了系统特性和系统概率之间的下属。
For over 200 years, wettability has made significant contributions to understanding the properties of objects, advancing technological progress. Theoretical model of the contact angle (CA) for evaluating wettability has constantly been modified to address relevant emerging issues. However, these existing models disregard the difference in the CA along the contact line and use a single-point CA to evaluate the entire contact line. From this perspective, there is no reasonable explanation for noncircular wetting. Here, we reveal that noncircular wetting boundaries result from property differences in the surfaces along the boundary, and utilize friction as a comprehensive factor reflecting local wettability. Average CA is proposed to evaluate the contact line instead of the single-point CA, making the Cassie method and Wenzel method obsolete, which will take an average property of the whole surface as a weight coefficient of the single-point CA, ignoring the subordination between physical properties and roughness in systematics.
