Whole Contact Line Pinning for Droplets Impacting on a Hydrophobic Surface Due to Hydrophilic TiO<sub>2</sub> Nanoparticle Addition
Yang Li, Jiandong Zhou, Meibing Hu, Dengwei Jing
Abstract
particles depositing at the triple line can change the wettability of the local surface, which leads to pinning, while the disturbance of capillary oscillation leads to depinning. Interestingly, a long-time whole contact line pinning for more than a second was observed under certain conditions. This work can be of value for many practical applications such as pesticide deposition and spray cooling.
Topics & Concepts
WettingDeposition (geology)Materials scienceNanoparticleContact angleDrop (telecommunication)Pulmonary surfactantSuspension (topology)Pinning forceNanotechnologyWork (physics)Chemical physicsCapillary actionChemical engineeringCondensed matter physicsComposite materialChemistryCritical currentThermodynamicsPhysicsTelecommunicationsMathematicsPaleontologyHomotopyComputer scienceBiologyPure mathematicsSuperconductivityEngineeringSedimentFluid Dynamics and Heat TransferSurface Modification and SuperhydrophobicityPlant Surface Properties and Treatments