Greifswald 2024 – scientific programme

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P: Fachverband Plasmaphysik

P 6: Poster I

P 6.24: Poster

Monday, February 26, 2024, 16:30–18:30, ELP 6: Foyer

Effect of low-pressure plasma treatment on triboelectric properties of polypropylene (PP) and polylactic acid granules (PLA) — •Alina Bachmann — Hessen, Germany

This study evaluates the effect of low-pressure plasma treatment of approximately spherical polypropylene (PP) and cylindrical polylactic acid granules (PLA) on triboelectric properties. Using low-pressure plasma, various process gases and treatment durations, surfaces of the polymer materials were modified.

Within the experimental procedure these process parameters were varied to achieve saturation charge for PP and PLA. The charge-to-mass ratio and surface charge density serve as crucial parameters for characterising the treated surfaces.

The results of the study find application in the electro-sorting of plastics based on triboelectricity. Since this phenomenon is not scientifically understood to a full extent, the generated data contributes to a more optimised implementation in the technical field.

Keywords: Triboelectricity; Low-pressure plasma; Surface charge density; Electrosorting