Is There a Relationship between Surface Wettability of Structured Surfaces and Lyophobicity toward Liquid Metals?

ABSTRACT: The liquid metal lyophobicity of a rough substrate was, in previous articles, found to be rather independent on the surface wettability. In this article, we scrutinize the impact of surface wettability of a structured (rough) surface on the liquid metal wettability and adhesion. As a model system, a structured diamond coating was synthesized and modified by air plasma. We show that surface wettability (surface free energy) does not play a prominent role for static contact angle measurements and for the liquid metal repelling properties of the diamond coating in droplet impact experiments. In contrast, roll off angles and repeated deposition experiments illustrate that the increased hydrophilicity impacts the long-term liquid metal repellency of our coating. Liquid metal adhered after aroun

SUBMITTER: Handschuh-Wang S 

PROVIDER: S-EPMC7288057 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature