scholarly journals Impact of atmospheric pressure nonequilibrium plasma discharge on polymer surface metrology

2017 ◽  
Vol 35 (3) ◽  
pp. 03E105 ◽  
Author(s):  
Laurence Scally ◽  
James Lalor ◽  
Patrick J. Cullen ◽  
Vladimir Milosavljević
Keyword(s):  
Atmospheric Pressure ◽  
Polymer Surface ◽  
Nonequilibrium Plasma ◽  
Plasma Discharge ◽  
Surface Metrology

scholarly journals Development Of Atmospheric Pressure Plasma Jet In Air

2012 ◽  
Vol 8 (1) ◽  
pp. 15-22 ◽  
Author(s):  
RB Tyata ◽  
DP Subedi ◽  
A Shrestha ◽  
D Baral
Keyword(s):  
Atmospheric Pressure ◽  
Polymer Surface ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Optical Measurements ◽  
Atmospheric Pressure Plasma Jet ◽  
Pressure Plasma ◽  
Large Structures ◽  
Small Flow ◽  
Effect Of Treatment

In this paper, an atmospheric pressure plasma jet (APPJ) in air that is expected to be useful for polymer surface modification has been reported. The plasma jet was produced by applying (10 - 30) kHz, (0 - 20) kV AC source. The electrical and optical measurements have also been reported. The use of solenoid as an external electrode has been found to be more effective in boosting the jet to a distance up to 30 mm even with a small flow rate of air. The characteristic of the proposed APPJ was investigated by measuring the effect of treatment on a PE film on the jet for different exposition time and distance from the nozzle. It has been confirmed that the jet can modify polymer film with a work distance of over 25mm. This plasma jet can be useful for the treatment and cleaning of objects having large structures and could be used in wider areas of application. DOI: http://dx.doi.org/10.3126/kuset.v8i1.6035 KUSET 2012; 8(1): 15-22

Studying of Plasma- Polymerized Pyrrole at Variable Gas Flow Rates Via Plasma Jet

2021 ◽  
Vol 19 (48) ◽  
pp. 44-51
Author(s):  
Saba Jawad Kadhem
Keyword(s):  
Flow Rate ◽  
Atmospheric Pressure ◽  
Gas Flow ◽  
Flow Characteristics ◽  
Atmospheric Pressure Plasma ◽  
Optical Emission ◽  
Plasma Jet ◽  
Nonequilibrium Plasma ◽  
Nano Particles ◽  
Vis Spectroscopy

     In this manuscript has investigated the synthesis of plasma-polymerized pyrrole (C4H5N) nano-particles prepared by the proposed atmospheric pressure nonequilibrium plasma jet through the parametric studies, particularly gas flow rate (0.5, 1 and 1.5 L/min). The plasma jet which used operates with alternating voltage 7.5kv and frequency 28kHz. The plasma-flow characteristics were investigated based on optical emission spectroscopy (OES). UV-Vis spectroscopy was used to characterize the  oxidization  state for polypyrrole. The major absorption appears around 464.1, 449.7 and 435.3  nm at the three flow rate of argon gas. The chemical composition and structural properties of the contained samples which synthesized at 0.5 L/min as a argon flow rate were analyzed by scanning electron microscopy (SEM), Fourier transformation infrared spectroscopy (FTIR), Raman spectroscopy and X-ray diffraction (XRD). SEM point to a uniform distribution of polypyrrole (PPY) nanoparticles matrix. XRD technique showed a semicrystalline pattern for PPY)thin film. It is expected, that the high-quality plasma polymer grown by atmospheric pressure plasma jet method contributes to serving as conducting materials.

Atmospheric-pressure argon/oxygen plasma-discharge source with a stepped electrode

2007 ◽  
Vol 90 (5) ◽  
pp. 051504 ◽  
Author(s):  
Jin-Pyo Lim ◽  
Han S. Uhm ◽  
Shou-Zhe Li
Keyword(s):  
Atmospheric Pressure ◽  
Oxygen Plasma ◽  
Plasma Discharge ◽  
Discharge Source
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