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Simple Fabrication of Robust Water‐Repellent Surfaces with Low Contact‐Angle Hysteresis Based on Impregnation
Author(s) -
Eifert Alexander,
Paulssen Dorothea,
Varanakkottu Subramanyan Namboodiri,
Baier Tobias,
Hardt Steffen
Publication year - 2014
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201300138
Subject(s) - materials science , silicone oil , contact angle , hysteresis , lubrication , fabrication , composite material , viscosity , substrate (aquarium) , medicine , oceanography , physics , alternative medicine , pathology , geology , quantum mechanics
A simple method to fabricate water‐repellent low‐hysteresis surfaces on various substrate materials based on impregnation with silicone oil is demonstrated. The thickness of the lubrication film has negligible influence on the roll‐off velocity which is determined by the film viscosity. As possible application thermocapillary transport of water droplets along such surfaces is shown. Corresponding experiments indicate that it is the motion relative to the lubricating film and not the film motion itself that dominates droplet transport.