Effect of Electrode Potential on the Drag Force on Gold and Polyvinyl Butyral Surfaces in a Flowing Aqueous Fluoride Solution
Filipas Ambrulevicius,
Arunas Pulmanas,
Deivis Plausinaitis
et al.
Abstract:It is shown that positive electrical polarization reduces the drag force on gold-and polyvinyl butyral (PVB)-coated spheres immersed in a stream of aqueous sodium fluoride solution. This effect is related to a decrease in the interfacial viscosity of the solution at the positively polarized gold and PVB surfaces, as obtained from quartz resonator measurements. The decrease in viscosity at a polymercoated electrode is larger than that at a gold electrode, which is consistent with drag force measurements. The dr… Show more
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