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Open AccessArticle

Surface Modification of Polycarbonate by an Atmospheric Pressure Argon Microwave Plasma Sheet

Institute of Fluid Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk, Poland
Electrotechnical Institute, Division of Electrotechnology and Materials Science, M. Skłodowskiej-Curie 55/61, 50-369 Wrocław, Poland
Author to whom correspondence should be addressed.
Materials 2019, 12(15), 2418;
Received: 25 June 2019 / Revised: 25 July 2019 / Accepted: 26 July 2019 / Published: 29 July 2019
(This article belongs to the Special Issue Atmospheric Pressure Plasmas in Material Science)
The specific properties of an atmospheric pressure plasma make it an attractive tool for the surface treatment of various materials. With this in mind, this paper presents the results of experimental investigations of a polycarbonate (PC) material surface modification using this new type of argon microwave (2.45 GHz) plasma source. The uniqueness of the new plasma source lies in the shape of the generated plasma—in contrast to other microwave plasma sources, which usually provide a plasma in the form of a flame or column, the new ones provides a plasma in the shape of a regular plasma sheet. The influence of the absorbed microwave power and the number of scans on the changes of the wettability and morphological and mechanical properties of the plasma-treated PC samples was investigated. The mechanical properties and changes in roughness of the samples were measured by the use of atomic force microscopy (AFM). The wettability of the plasma-modified samples was tested by measuring the water contact angle. In order to confirm the plasma effect, each of the above-mentioned measurements was performed before and after plasma treatment. All experimental tests were performed with an argon of flow rate up to 20 L/min and the absorbed microwave power ranged from 300 to 850 W. The results prove the capability of the new atmospheric pressure plasma type in modifying the morphological and mechanical properties of PC surfaces for industrial applications. View Full-Text
Keywords: surface modification; polycarbonate; microwave plasma; atmospheric pressure plasma surface modification; polycarbonate; microwave plasma; atmospheric pressure plasma
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MDPI and ACS Style

Czylkowski, D.; Hrycak, B.; Sikora, A.; Moczała-Dusanowska, M.; Dors, M.; Jasiński, M. Surface Modification of Polycarbonate by an Atmospheric Pressure Argon Microwave Plasma Sheet. Materials 2019, 12, 2418.

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