On the regime transitions during the formation of an atmospheric pressure dielectric barrier glow discharge

2009 ◽  
Vol 42 (12) ◽  
pp. 122002 ◽  
Author(s):  
T Martens ◽  
W J M Brok ◽  
J van Dijk ◽  
A Bogaerts
Keyword(s):  
Glow Discharge ◽  
Atmospheric Pressure ◽  
Dielectric Barrier ◽  
Regime Transitions

Surface Treatment of PMIA Fibers with Sub-Atmospheric Pressure Dielectric Barrier Glow Discharge Plasma

2014 ◽  
Vol 1048 ◽  
pp. 72-76
Author(s):  
Huan Da Zheng ◽  
Juan Zhang ◽  
Bing Du ◽  
Qu Fu Wei ◽  
Lai Jiu Zheng
Keyword(s):  
Glow Discharge ◽  
Atmospheric Pressure ◽  
Chemical Structure ◽  
Surface Characterization ◽  
Discharge Plasma ◽  
Treatment Time ◽  
Fiber Surface ◽  
Glow Discharge Plasma ◽  
Dielectric Barrier ◽  
Ft Ir

Meta-aramid fibers were treated by sub-atmospheric pressure dielectric barrier glow discharge plasma. The effect of plasma treatment time on the fiber surface physical and chemical properties was studied by using surface characterization techniques. Scanning electron microscopy (SEM) was performed to determine the surface morphology changes. FT-IR spectroscopy measurements were performed to investigate the change of chemical structure. Dynamic contact angle analysis (DCAA) was used to examine the changes of the fiber surface wettability. SEM analysis showed that there was obvious crack along the fibers’ axial direction present on the fiber surface, which resulted in the better wetting behavior of the plasma-treated PMIA fiber. FT-IR analysis showed that plasma had little effect on the chemical structure of PMIA fibers. DCAA analysis showed that the wettability of the samples could be improved with the treatment time increasing. In addition, a slight decrease in breaking strength was observed at the treatment time ranging from 60 to 180 s in comparison with the untreated sample.

Antimicrobial Coatings Obtained in an Atmospheric Pressure Dielectric Barrier Glow Discharge

2002 ◽  
Vol 724 ◽  
Author(s):  
Sabine Paulussen ◽  
Dirk Vangeneugden ◽  
Olivier Goossens ◽  
Erik Dekempeneer
Keyword(s):  
Glow Discharge ◽  
Atmospheric Pressure ◽  
Bacterial Colonization ◽  
Polymer Coatings ◽  
Plasma Polymer ◽  
Antimicrobial Coatings ◽  
Dielectric Barrier ◽  
Angle Measurements ◽  
Contact Angle Measurements ◽  
Thin Plasma

AbstractThis paper addresses the development of plasma polymer coatings that should prevent bacteria from adhering to medical devices, implants, textile fibers, packaging materials, etc. The two main parameters affecting bacterial colonization onto surfaces are the surface energy and the surface roughness. Both parameters can be adjusted by the deposition of a thin plasma polymer coating in an atmospheric pressure dielectric barrier glow discharge. According to SEM, FTIR, SPM, XPS and contact angle measurements, smooth, hydrophilic plasma polymer coatings were obtained under specific plasma conditions starting from 2-hydroxyethyl methacrylate (HEMA) and ethyl diazoacetate (EDA).

scholarly journals Modal analysis of dielectric barrier discharge-based argon cold plasma jet

2020 ◽  
Vol 38 (4) ◽  
pp. 229-238
Author(s):  
G. Divya Deepak ◽  
N. K. Joshi ◽  
Ram Prakash
Keyword(s):  
Glow Discharge ◽  
Dielectric Barrier Discharge ◽  
Atmospheric Pressure ◽  
Cold Plasma ◽  
Barrier Discharge ◽  
Plasma Jet ◽  
Ring Electrode ◽  
Comsol Multiphysics ◽  
Dielectric Barrier ◽  
Argon Gas

AbstractIn this study, an atmospheric pressure dielectric barrier discharge-based argon plasma jet has been modeled using COMSOL Multiphysics, which is based on the finite element method. The fluid dynamics and plasma modules of COMSOL Multiphysics code have been used for the modeling of the plasma jet. The plasma parameters, such as electron density, electron temperature, and electrical potential, have been examined by varying the electrical parameters, that is, supply voltage and supply frequency for both cases of static and with the flow of argon gas. The argon gas flow rate was fixed at 1 l/min. Ring electrode arrangement is subjected to a range of supply frequencies (10–25 kHz) and supply voltages (3.5–6 kV). The experimental results of the ring electrode configuration have been compared with the simulation analysis results. These results help in establishing an optimized operating range of the dielectric barrier discharge-based cold plasma jet in the glow discharge regime without arcing phenomenon. For the applied voltage and supply frequency parameters examined in this work, the discharge was found to be consistently homogeneous and displayed the characteristics of atmospheric pressure glow discharge.

Ozone production by nanoporous dielectric barrier glow discharge in atmospheric pressure air

2008 ◽  
Vol 92 (10) ◽  
pp. 101504 ◽  
Author(s):  
J. H. Cho ◽  
I. G. Koo ◽  
M. Y. Choi ◽  
W. M. Lee
Keyword(s):  
Glow Discharge ◽  
Atmospheric Pressure ◽  
Ozone Production ◽  
Dielectric Barrier

scholarly journals Simulations of the cathode falling characteristics and its influence factors in atmospheric pressure dielectric barrier glow discharge pulse

2017 ◽  
Vol 66 (2) ◽  
pp. 025203
Author(s):  
Yao Cong-Wei ◽  
Ma Heng-Chi ◽  
Chang Zheng-Shi ◽  
Li Ping ◽  
Mu Hai-Bao ◽  
...  
Keyword(s):  
Glow Discharge ◽  
Atmospheric Pressure ◽  
Influence Factors ◽  
Dielectric Barrier ◽  
Discharge Pulse
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