Improvement of hydrophilicity of polyamide using atmospheric pressure plasma jet

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

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

International Journal of Polymer Science ◽

10.1155/2020/3860259 ◽

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.

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Generation and Characterization of an Atmospheric-Pressure Plasma Jet (APPJ) and Its Application in the Surface Modification of Polyethylene Terephthalate

International Journal of Polymer Science ◽

10.1155/2020/9247642 ◽

2020 ◽

Vol 2020 ◽

pp. 1-7

Author(s):

Hom Bahadur Baniya ◽

Rajendra Shrestha ◽

Rajesh Prakash Guragain ◽

Mohan Bahadur Kshetri ◽

Bishnu Prasad Pandey ◽

...

Keyword(s):

Material Processing ◽

Surface Modification ◽

Polyethylene Terephthalate ◽

Atmospheric Pressure ◽

Atmospheric Pressure Plasma ◽

Plasma Jet ◽

Film Deposition ◽

Atmospheric Pressure Plasma Jet ◽

Pressure Plasma

An atmospheric-pressure plasma jet (APPJ) has a lot of applications in recent years such as in material processing, surface modification, biomedical material processing, and thin film deposition. APPJ has been generated by a high-voltage power supply (0-20 kV) at an operating frequency of 27 kHz. This paper reports the generation and characterization of APPJ in argon environment and its application in the surface modification of polyethylene terephthalate (PET). The plasma jet has been characterized by electrical and optical methods. In order to characterize the plasma jet, electron density and electron temperature have been determined. The surface roughness of the untreated and plasma-treated PET samples was characterized by contact angle measurement, surface energy analysis, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and atomic force microscopy (AFM).

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

Electronics ◽

10.3390/electronics10172119 ◽

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.

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