Abstract
The work presents the experimental studies of the influence of surface roughness on the dynamic characteristics of distilled water droplet spreading. As solid surfaces, copper samples treated with abrasive materials (average grain size of 10–100 μm) and aluminum samples polished to a mirror finish were used. The advancing dynamic contact angles obtained using DSA technique were found. The effect of the droplet formation rate and surface roughness on the characteristics of water droplet spreading, in particular, dynamic contact angle, was analyzed.
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