scholarly journals Cold Atmospheric Pressure Plasma Jet for the Improvement of Wettability of Polypropylene

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Hom Bahadur Baniya ◽  
Rajesh Prakash Guragain ◽  
Binod Baniya ◽  
Deepak Prasad Subedi
Keyword(s):  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Angle Measurement ◽  
Optical Methods ◽  
Atmospheric Pressure Plasma Jet ◽  
Atmospheric Conditions ◽  
High Voltage Power Supply ◽  
Pressure Plasma ◽  
Cold Atmospheric Pressure Plasma

This paper reports the generation of cold plasma jet working under atmospheric pressure condition, for surface treatment of polymeric films. The discharge has been characterized by electrical and optical methods. The electrical property of the discharge has been studied by taking current-voltage wave forms using voltage and current probes. The production of argon plasma jet is done in atmospheric conditions which are relatively much cheaper, convenient, and safer to use. The atmospheric pressure plasma jet sustained in pure argon has been used to improve wettability of polypropylene (PP). Cold atmospheric pressure plasma jet (CAPPJ) has been generated by a high-voltage power supply (5.5 kV, 0-20 kV) at an operating frequency of 20 kHz. The surface properties of the controls and plasma-treated PP samples were characterized by contact angle measurement, surface free energy measurement, scanning electron microscopy, and the Fourier transform-infrared spectroscopy analysis.

scholarly journals Improvement of hydrophilicity of polyamide using atmospheric pressure plasma jet

BIBECHANA ◽  
2020 ◽  
Vol 17 ◽  
pp. 133-138 ◽  
Author(s):  
H B Baniya ◽  
R P Guragain ◽  
B Baniya ◽  
G Qin ◽  
D P Subedi
Keyword(s):  
Material Processing ◽  
Surface Modification ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Polymeric Materials ◽  
Plasma Jet ◽  
Angle Measurement ◽  
Atmospheric Pressure Plasma Jet ◽  
High Voltage Power Supply ◽  
Pressure Plasma

Atmospheric Pressure Plasma Jet (APPJ) has many applications in material processing such as surface modification and biomedical material processing. APPJ has been generated by a high voltage power supply (0-20 KV) at an operating frequency of (20-30) 23 kHz. This paper reports the generation and characterization of APPJ in Argon environment and its application in the surface modification of polymeric materials. The discharge has been characterized by optical and electrical methods. In order to characterize the plasma jet, its electron temperature and electron density has been determined by optical emissions spectroscopy. The surface properties of the untreated and plasma treated Polyamide (PA) samples were characterized by contact angle measurement and surface energy analysis. BIBECHANA 17 (2020) 133-138

scholarly journals Characterization of a Cold Atmospheric Pressure Plasma Jet Device Driven by Nanosecond Voltage Pulses

2015 ◽  
Vol 43 (3) ◽  
pp. 713-725 ◽  
Author(s):  
Marco Boselli ◽  
Vittorio Colombo ◽  
Matteo Gherardi ◽  
Romolo Laurita ◽  
Anna Liguori ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Atmospheric Pressure Plasma Jet ◽  
Pressure Plasma ◽  
Cold Atmospheric Pressure Plasma ◽  
Voltage Pulses

scholarly journals Development of a High-Power-Factor Power Supply for an Atmospheric-Pressure Plasma Jet

Electronics ◽  
2021 ◽  
Vol 10 (17) ◽  
pp. 2119
Author(s):  
Chi-Feng Su ◽  
Chih-Tung Liu ◽  
Jong-Shinn Wu ◽  
Ming-Tzu Ho
Keyword(s):  
High Voltage ◽  
Power Factor ◽  
Power Supply ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Atmospheric Pressure Plasma Jet ◽  
High Voltage Power Supply ◽  
Pressure Plasma ◽  
High Power Factor

This paper presents the design and implementation of a miniaturized high-voltage power supply with power factor correction (PFC) for atmospheric-pressure plasma jet (APPJ) applications. The sinusoidal output frequency and voltage of the power supply can be controlled independently from 16 to 24 kHz and from 1 to 10 kVpeak, respectively. A helium APPJ load is used to assess the performance of the developed power supply. It is shown that the developed high-voltage power supply operates effectively, and the designed PFC converter improves the input current distortion of the power supply. Not only the power factor of the power supply is increased from 0.41 to 0.95, but it also provides a low-ripple DC voltage, which reduces the high-voltage ripple of the output from 730 to 50 Vp-p. In this paper, the proposed design integrates the PFC converter into the high-voltage power supply so that the developed power supply has better electrical characteristics and the overall power supply can be significantly miniaturized.

Cold Atmospheric Pressure Plasma Jet Reduces Trichophyton rubrum Adherence and Infection Capacity

2019 ◽  
Vol 184 (5) ◽  
pp. 585-595 ◽  
Author(s):  
Aline Chiodi Borges ◽  
Thalita Mayumi Castaldelli Nishime ◽  
Sabrina de Moura Rovetta ◽  
Gabriela de Morais Gouvêa Lima ◽  
Konstantin Georgiev Kostov ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Trichophyton Rubrum ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Atmospheric Pressure Plasma Jet ◽  
Pressure Plasma ◽  
Cold Atmospheric Pressure Plasma
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