论文标题
柔软和肿胀表面上滑动滴的润湿脊中的相位分离
Phase Separation in Wetting Ridges of Sliding Drops on Soft and Swollen Surfaces
论文作者
论文摘要
与肿胀接触，弹性体底物可以在润湿脊中诱导毛细血管介导的相分离。使用激光扫描共聚焦显微镜，我们可以在水滴的稳态滑动过程中可视化寡聚硅油从交联硅网络的相位分离。我们发现油尖高度与下降滑动速度之间存在反相关关系，这是通过竞争的油分子的运输时间标准：分离速率和下降速度速度。高度肿胀的网络中的分离率与纯熔体中的扩散一样快。
Drops in contact with swollen, elastomeric substrates can induce a capillary-mediated phase separation in wetting ridges. Using laser scanning confocal microscopy, we visualize phase separation of oligomeric silicone oil from a crosslinked silicone network during steady-state sliding of water drops. We find an inverse relationship between the oil tip height and the drop sliding speed, which is rationalized by competing transport timescales of oil molecules: separation rate and drop-advection speed. Separation rates in highly swollen networks are as fast as diffusion in pure melts.
