Splitting droplets through coalescence of two different three-phase contact lines
Haitao Yu, Pallav Kant, Brendan Dyett, Detlef Lohse, Xuehua Zhang
SOFT MATTER | ROYAL SOC CHEMISTRY | Published : 2019
Moving contact lines of more than two phases dictate a large number of interfacial phenomena. Despite their significance in fundamental and applied processes, the contact lines at a junction of four-phases (two immiscible liquids, a solid and gas) have been addressed only in a few investigations. Here, we report an intriguing phenomenon that follows after the four phases oil, water, solid and gas make contact through the coalescence of two different three-phase contact lines. We combine experimental studies and theoretical analyses to reveal and rationalize the dynamics exhibited upon the coalescence between the contact line of a micron-sized oil droplet and the receding contact line of a mi..View full abstract
Awarded by European Research Council
H. Y. is grateful for the valuable assistance from Dr Huanshu Tan in setting up the experiments. D. L. acknowledges the European Research Council Advanced Grant-740479-DDD and X. Z. acknowledges the support of the Natural Sciences and Engineering Research Council of Canada (NSERC) Future Energy Systems (Canada First Research Excellence Fund).