论文标题
液体注入表面上的毛细管桥
Capillary Bridges on Liquid Infused Surfaces
论文作者
论文摘要
我们研究将液滴放在两个液体注入表面（LIS）之间时形成的两个组件毛细管桥。与经常研究的一个成分毛细管桥梁上的固体表面上相反，两个组分液体桥可以表现出一系列不同的形态，其中液滴直接与两个，一个或一个LIS底物直接接触。另外，由于润滑剂对液滴的包裹，毛细管桥梁可能会失去稳定性。我们还表征了毛细作用力，最大分离和有效的弹簧力，并发现它们受润滑脊的形状和大小影响。重要的是，可以通过操纵润滑剂压力，Neumann角度和润湿接触角来调整这些调整以提高有效的毛细管粘附强度。因此，LI不仅是平行于表面的“滑动”，而且它们也垂直于表面“粘性”。
We numerically study two-component capillary bridges formed when a liquid droplet is placed in between two liquid infused surfaces (LIS). In contrast to commonly studied one-component capillary bridges on non-infused solid surfaces, two-component liquid bridges can exhibit a range of different morphologies where the liquid droplet is directly in contact with two, one or none of the LIS substrates. In addition, the capillary bridges may lose stability when compressed due to the envelopment of the droplet by the lubricant. We also characterise the capillary force, maximum separation and effective spring force, and find they are influenced by the shape and size of the lubricant ridge. Importantly, these can be tuned to increase the effective capillary adhesion strength by manipulating the lubricant pressure, Neumann angle, and wetting contact angles. As such, LIS are not only "slippery" parallel to the surface, but they are also "sticky" perpendicular to the surface.
