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Polymer surface functionalization using a new µ-wave driven atmospheric pressure plasma-jet device

V. Faldu1, O. Beier1, A. Pfuch1, K. Horn1, J. Zender2, D. Wolf2, T. Filler2, W. Heinrich2, U. Winterwerber2, N. Lobo Ploch2

Published in:

J. Plast. Technol., vol. 19, no. 2, pp. 52-72 (2023).


A newly developed compact µ-wave plasma source was utilized for activating the surfaces of several polymers. A remarkable improvement of the surface adhesion was achieved. The plasma-treated surfaces were investigated by AFM, XPS and surface free energy measurements. Also, actual adhesion improvements were evaluated by pull-off testing of paint-coatings applied after the plasma treatment. The plasma itself was characterized by optical emission spectroscopy, gas temperature determination as well as waste gas measurements.

1 INNOVENT e.V., Jena, Germany
2 Ferdinand-Braun-Institut gGmbH, Leibniz-Institut für Höchstfrequenztechnik, Berlin, Germany


microwave plasma, atmospheric pressure plasma, plasma characterisation, polymer surface functionalisation, adhesion improvement

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