Effect of energy dissipation on a viscoelastic substrate on the dissolution of surface nanobubbles

Abstract

Based on the analogy between the process of spreading a liquid droplet on a hydrophobic surface and the diffusion dissolution of surface nanobubbles (SNB), the shape of the wetting ridge, deformed by capillary forces of the substrate surface area adjacent to the contact line of the three phases, is calculated within the framework of linear elasticity theory. It is shown that the energy dissipation in viscoelastic substrates on the wetting ridge can cause the pinning of the triple line and the termination of the diffusion dissolution of the SNB. Keywords: surface nanobubble, pinning, viscoelasticity.