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Communication Dans Un Congrès Année : 2023

The impact of the initial charge on the triboelectric behavior of insulating particles crossing a metallic tube

Résumé

Triboelectricity caused by metal-insulator or insulator-insulator contact is commonly observed in different conditions or environments. This study examines the influence of the initial charge on the development of the triboelectric charge by passing initially charged polypropylene particles through an inclined 1 m galvanized metal tube. For that purpose, charged particles with a DC corona discharge are passed repeatedly in the tube until they reach saturation. The gained triboelectric charge is measured after each passage so that cumulated charge over time can be obtained. The results show that particles can lose or acquire charge depending on their initial charge sign and value. An initial charge below saturation would result in an increase of the cumulated charge, which is typically the most observed case. Conversely, when the initial charge is higher than the saturation charge, the particles lose charge at each passage in the metallic tube until they reach the saturation charge level. This case corresponds to a discharge like behavior that could result from a reversal of charge transfer direction.
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Dates et versions

hal-04494111 , version 1 (07-03-2024)

Identifiants

  • HAL Id : hal-04494111 , version 1

Citer

Sarra Mouhoub, Miloud Kachi, Noureddine Zouzou. The impact of the initial charge on the triboelectric behavior of insulating particles crossing a metallic tube. 12ème conférence de la Société Française d’Electrostatique, SFE'2023, Jul 2023, Cherbourg en Cotentin, France. pp.140-143. ⟨hal-04494111⟩
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