K Kutasi, Nikita Bibinov, A von Keudell, Klaus Wiesemann

Wettabilities of plasma deposited polymer films

Journal of Optoelectronics and Advanced Materials 7 (2005) 2549-2556

We have investigated the wettability of hydrocarbon films deposited in capacitively coupled He, Ar/C(2)H(2) rf discharges. Depending on the discharge pulse lengths we obtained hydrophobic films with contact angles either between 80 degrees and 86 degrees or between 100 degrees and 140 degrees. By treating the latter class of hydrophobic films in Ar or He discharges the film surfaces became hydrophilic with a contact angle not distinguishable from 0 degrees. The investigated films were non-hygroscopic.

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