Transferred plasma jet from a dielectric barrier discharge for processing of poly(dimethylsiloxane) surfaces

Abstract

In this work we studied processing of poly(dimethylsiloxane) (PDMS) surfaces using dielectric barrier discharge (DBD) plasma in two different assemblies, one using the primary plasma jet obtained from a conventional DBD and the other using a DBD plasma jet transfer. The evolution of water contact angle (WCA) in function of plasma processing time and in function of aging time as well as the changes in the surface roughness of PDMS samples for both plasma treatments have been studied. We also compared vibrational and rotational temperatures for both plasmas and for the first time the vibrational temperature (T_vib) for the transferred plasma jet has been shown to be higher as compared with the primary jet. The increment in the T_vib value seems to be the main reason for the improvements in adhesion properties and surface wettability for the transferred plasma jet. Possible explanations for the increase in the vibrational temperature are presented.

17 pages, 17 figures

References in corpus (1)

• Treatment of PDMS surfaces using pulsed DBD plasmas: comparing the use of different gases and its influence on adhesion

Cited by in corpus (6)

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• The role of vibrational temperature variations in a pulsed dielectric barrier discharge plasma device
• Measurements of power dissipated in an atmospheric pressure plasma jet device with double plasma discharge ignition
• A low-cost plasma source aimed for medical applications using Ar as the working gas
• Water activation using Ar-H${}_2$ atmospheric pressure plasma jets