scholarly journals Control of radio-frequency atmospheric pressure argon plasma characteristics by helium gas mixing

2006 ◽  
Vol 13 (1) ◽  
pp. 013504 ◽  
Author(s):  
Se Youn Moon ◽  
Jewoo Han ◽  
W. Choe
Keyword(s):  
Radio Frequency ◽  
Atmospheric Pressure ◽  
Argon Plasma ◽  
Gas Mixing ◽  
Helium Gas ◽  
Plasma Characteristics

Influence of oxygen traces on an atmospheric-pressure radio-frequency capacitive argon plasma discharge

2011 ◽  
Vol 18 (10) ◽  
pp. 103502 ◽  
Author(s):  
Shou-Zhe Li ◽  
Qi Wu ◽  
Wen Yan ◽  
Dezhen Wang ◽  
Han S. Uhm
Keyword(s):  
Radio Frequency ◽  
Atmospheric Pressure ◽  
Argon Plasma ◽  
Plasma Discharge

scholarly journals Electron properties and air mixing in radio frequency driven argon plasma jets at atmospheric pressure

2013 ◽  
Vol 103 (6) ◽  
pp. 064103 ◽  
Author(s):  
Bram van Gessel ◽  
Ronny Brandenburg ◽  
Peter Bruggeman
Keyword(s):  
Radio Frequency ◽  
Atmospheric Pressure ◽  
Argon Plasma ◽  
Plasma Jets ◽  
Air Mixing

scholarly journals Surface modification of PMMA polymer and its composites with PC61BM fullerene derivative using an atmospheric pressure microwave argon plasma sheet

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Andrzej Sikora ◽  
Dariusz Czylkowski ◽  
Bartosz Hrycak ◽  
Magdalena Moczała-Dusanowska ◽  
Marcin Łapiński ◽  
...  
Keyword(s):  
Contact Angle ◽  
Surface Modification ◽  
Chemical Composition ◽  
Water Contact Angle ◽  
Plasma Sheet ◽  
Atmospheric Pressure ◽  
Argon Plasma ◽  
Fullerene Derivative ◽  
Water Contact ◽  
Pmma Polymer

AbstractThis paper presents the results of experimental investigations of the plasma surface modification of a poly(methyl methacrylate) (PMMA) polymer and PMMA composites with a [6,6]-phenyl-C61-butyric acid methyl ester fullerene derivative (PC61BM). An atmospheric pressure microwave (2.45 GHz) argon plasma sheet was used. The experimental parameters were: an argon (Ar) flow rate (up to 20 NL/min), microwave power (up to 530 W), number of plasma scans (up to 3) and, the kind of treated material. In order to assess the plasma effect, the possible changes in the wettability, roughness, chemical composition, and mechanical properties of the plasma-treated samples’ surfaces were evaluated by water contact angle goniometry (WCA), atomic force microscopy (AFM), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS). The best result concerning the water contact angle reduction was from 83° to 29.7° for the PMMA material. The ageing studies of the PMMA plasma-modified surface showed long term (100 h) improved wettability. As a result of plasma treating, changes in the samples surface roughness parameters were observed, however their dependence on the number of plasma scans is irregular. The ATR-FTIR spectra of the PMMA plasma-treated surfaces showed only slight changes in comparison with the spectra of an untreated sample. The more significant differences were demonstrated by XPS measurements indicating the surface chemical composition changes after plasma treatment and revealing the oxygen to carbon ratio increase from 0.1 to 0.4.

The driving frequency effects on the atmospheric pressure corona jet plasmas from low frequency to radio frequency

2011 ◽  
Vol 18 (4) ◽  
pp. 043503 ◽  
Author(s):  
Dan Bee Kim ◽  
H. Jung ◽  
B. Gweon ◽  
S. Y. Moon ◽  
J. K. Rhee ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Atmospheric Pressure ◽  
Low Frequency ◽  
Driving Frequency ◽  
Frequency Effects

Influence of Additive Gas on Electrical and Optical Characteristics of Non-equilibrium Atmospheric Pressure Argon Plasma Jet

2011 ◽  
Vol 13 (5) ◽  
pp. 575-582 ◽  
Author(s):  
Xiaomeng Fei ◽  
Shin-ichi Kuroda ◽  
Yuki Kondo ◽  
Tamio Mori ◽  
Katsuhiko Hosoi
Keyword(s):  
Atmospheric Pressure ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Optical Characteristics ◽  
Argon Plasma Jet ◽  
Non Equilibrium
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