2022/03/25 by Leon Topp, Moritz Stieneker, Topp, Leon +6
Earth and Planetary Sciences · Materials Science · Physics and Astronomy · #Block Copolymer Self-Assembly #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Theoretical and Computational Physics #nanoparticles nucleation surface interactions #physics.flu-dyn
paper · pdf · doi:10.48550/arxiv.2203.13719
openalex publication_date 2022/03/25 · arxiv created 2022/03/31 · arxiv updated 2022/04/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The development of substrates with a switchable wettability is on a fast pace. The limit of switching frequencies and contact angle differences between substrate states are steadily pushed further. We investigate the behavior of a droplet on a homogeneous substrate, which is switched between two wettabilities for a large range of switching frequencies. Here, we are particularly interested in the dependence of the wetting behavior on the switching frequency. We show, that results obtained on the particle level via molecular dynamics simulations and on the continuum level via the thin-film model are consistent. Predictions of simple models as the molecular theory of wetting (MKT) and analytical calculations based on the MKT also show good agreement and offer deeper insights into the underlying mechanisms.