Experimental study of controlled active neutralization of polypropylene films

Autor: Belaid Tabti, Lucian Dascalescu, Boukhalfa Bendahmane, M. R. Mekideche, Akila Messaoudene
Přispěvatelé: Université Jijel, Electro-Fluido-Dynamique (EFD ), Département Fluides, Thermique et Combustion (FTC), Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2020
Předmět:
endocrine system
Materials science
[PHYS.MPHY]Physics [physics]/Mathematical Physics [math-ph]
Polymer films
01 natural sciences
Electric charge
[SPI.AUTO]Engineering Sciences [physics]/Automatic
010305 fluids & plasmas
law.invention
[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph]
Triode
law
0103 physical sciences
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph]
[PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph]
Electrical and Electronic Engineering
Composite material
Electric charge neutralization
Corona discharge
[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]
[PHYS.MECA.VIBR]Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph]
010302 applied physics
AC corona discharge
[SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment
[SPI.NRJ]Engineering Sciences [physics]/Electric power
[CHIM.MATE]Chemical Sciences/Material chemistry
[PHYS.MECA.MSMECA]Physics [physics]/Mechanics [physics]/Materials and structures in mechanics [physics.class-ph]
Condensed Matter Physics
Corona
Electrostatic voltmeter
[PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph]
Surfaces
Coatings and Films
Electronic
Optical and Magnetic Materials
[SPI.ELEC]Engineering Sciences [physics]/Electromagnetism
[CHIM.POLY]Chemical Sciences/Polymers
Electrode
[PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph]
Surface electric potential
Electric potential
Biotechnology
Voltage
Zdroj: Journal of Electrostatics
Journal of Electrostatics, Elsevier, 2020, 103, pp.103407. ⟨10.1016/j.elstat.2019.103407⟩
ISSN: 0304-3886
DOI: 10.1016/j.elstat.2019.103407
Popis: International audience; AC corona discharge is widely employed for neutralizing the electric charges at the surface of insulating bodies: films, plates, granules, etc. If uncontrolled, this active neutralization process is accompanied by the persistence of a residual charge at the surface of the treated bodies. The aim of this present work is to demonstrate experimentally the efficiency of the controlled active neutralization using AC corona generated in a triode-type electrode configuration, with the grid connected to the ground. The experimental study was carried out on DC corona charged polypropylene films that were neutralized by a sinusoidal corona discharge at industrial frequency (50 Hz). The distribution of the electric potential at the surface of the charged and neutralized samples were measured by a non-contact electrostatic voltmeter. The factors under study were: the amplitude of the AC voltage applied to the corona electrode of the triode system, the duration of exposure to the corona discharge, the scanning speed, and the spacing between the grid and sample. The experimental results obtained show that the neutralization rate is close to 100%, i.e. the electric potential profiles obtained at the surface exposed to AC corona discharge show the absence of the residual charge. The results show that the efficiency of the controlled active neutralization depends on the energy that the AC corona discharge imparts to the charged samples, and that affects the trapped bulk charge.
Databáze: OpenAIRE
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