Soft Surface: Droplets on Soft Surfaces Exhibit a Reluctance to Coalesce due to an Intervening Wetting Ridge (Adv. Mater. Interfaces 17/2020),Advanced Materials Interfaces

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Soft Surface: Droplets on Soft Surfaces Exhibit a Reluctance to Coalesce due to an Intervening Wetting Ridge (Adv. Mater. Interfaces 17/2020)
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2020-09-11 , DOI: 10.1002/admi.202070098
Rishav Roy ₁ , Robert L. Seiler ₂ , Justin A. Weibel ₁ , Suresh V. Garimella ₁

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It is an everyday observation that water droplets condensing on a rigid substrate coalesce immediately upon touching. Soft surfaces, however, possess unique properties that create an illusionary effect in this situation, making it appear that droplets can touch and form a dense pattern instead of coalescing. In article number 2000731 Rishav Roy, Suresh V. Garimella, and coworkers demonstrate that this reluctance to coalesce is a consequence of deformation of the soft surfaces to form intervening ridges between the droplets. The cover art illustrates the topography of droplet ‘footprints’ after they are removed from a cryogenically fixed soft substrate.

中文翻译：

软质表面：由于存在中间的润湿脊，软质表面上的液滴表现出不愿意聚结的作用（材料研究接口17/2020）

每天观察到，在刚性基材上凝结的水滴在接触后会立即聚结。但是，柔软的表面具有独特的性能，在这种情况下会产生幻觉效果，使液滴似乎可以接触并形成致密的图案，而不是聚结。Rishav Roy，Suresh V. Garimella和同事在文章编号2000731中证明，这种不愿聚结的原因是软表面变形而在小滴之间形成中间的隆起。封面插图显示了从低温固定的软质基材上除去液滴后的“足迹”的形貌。

更新日期：2020-09-11

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