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Appl. Sci. 2017, 7(4), 337; doi:10.3390/app7040337

Reel-to-Reel Atmospheric Pressure Dielectric Barrier Discharge (DBD) Plasma Treatment of Polypropylene Films

1
Surface Engineering Group, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
2
Department of Electrical Engineering and Electronics, The University of Liverpool, Brownlow Hill, Liverpool L69 3GJ, UK
3
Innovia Films Ltd., R&D Centre, West Road, Wigton, Cumbria CA7 9XX, UK
*
Author to whom correspondence should be addressed.
Received: 6 March 2017 / Revised: 24 March 2017 / Accepted: 25 March 2017 / Published: 29 March 2017
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Abstract

Atmospheric pressure plasma treatment of the surface of a polypropylene film can significantly increase its surface energy and, thereby improve the printability of the film. A laboratory-scale dielectric barrier discharge (DBD) system has therefore been developed, which simulates the electrode configuration and reel-to-reel web transport mechanism used in a typical industrial-scale system. By treating the polypropylene in a nitrogen discharge, we have shown that the water contact angle could be reduced by as much as 40° compared to the untreated film, corresponding to an increase in surface energy of 14 mNm−1. Ink pull-off tests showed that the DBD plasma treatment resulted in excellent adhesion of solvent-based inks to the polypropylene film. View Full-Text
Keywords: dielectric barrier discharge; atmospheric pressure plasma; surface energy; polypropylene dielectric barrier discharge; atmospheric pressure plasma; surface energy; polypropylene
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MDPI and ACS Style

Seidelmann, L.J.; Bradley, J.W.; Ratova, M.; Hewitt, J.; Moffat, J.; Kelly, P. Reel-to-Reel Atmospheric Pressure Dielectric Barrier Discharge (DBD) Plasma Treatment of Polypropylene Films. Appl. Sci. 2017, 7, 337.

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