Journal
JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 60, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.35848/1347-4065/abd3bd
Keywords
atmospheric-pressure plasma; microwave; powerdivider
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Funding
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [2019R1F1A1042084]
- National Research Foundation of Korea [2019R1F1A1042084] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This paper proposes dual microwave-excited atmospheric-pressure plasma jets (DME-APPJs) that can be generated with a single power source for surface treatments, showing more advanced performance compared to single ME-APPJs.
In this paper, we propose dual microwave-excited atmospheric-pressure plasma jets (DME-APPJs) that can be generated with a single power source. A T-junction power divider that evenly distributes the input power to two ports is used, and two coaxial transmission line resonators are used as plasma generators for the DME-APPJs. The power divider distributes the incoming power in port 1 and supplies 46% of this power to port 2 and port 3, respectively. Surface treatments are conducted by exposing the multiple plasma jets to polypropylene (PP) specimens and then confirming the degree of hydrophilic change. Using the proposed DME-APPJs, it is possible to perform surface treatments on areas that are up to 50% larger compared to using two single ME-APPJs with the same power consumption. The DME-APPJs thus show more advanced performance for surface treatments by comparison with the single ME-APPJ. (c) 2021 The Japan Society of Applied Physics
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