Atmospheric Pressure Plasma-Dielectric Barrier Discharge (APP-DBD, open chamber configuration) was used to functionalize polypropylene (PP) fibers surface in order to generate oxidized-reactive groups such as hydroperoxides, alcohols and carbonyl species (i.e. ketones and others). Such a species increased the surface polarity, without causing material degradation. Three different types of plasma mixture (He, He/O2, He/O2/H2O) under three different values of applied power (750, 1050, 1400 W) were investigated. The formed plasma species (O2+, O single atom and OH radical) and their distribution were monitored via Optical Emission Spectrometry (OES) measurements, and the plasma effects on PP surface species formation were followed by X-ray Photoemission Spectroscopy (XPS). Results allowed to better understand the reaction pathways between plasma phase and PP fibers. In fact, two reaction mechanisms were proposed, the first one concerning the plasma phase reactions and the second one involving material surface modifications.

Nistico', R., Magnacca, G., Faga, M., Gautier, G., D’Angelo, D., Ciancio, E., et al. (2013). Effect of atmospheric oxidative plasma treatments on polypropylenic fibers surface: characterization and reaction mechanisms. APPLIED SURFACE SCIENCE, 279, 285-292 [10.1016/j.apsusc.2013.04.087].

Effect of atmospheric oxidative plasma treatments on polypropylenic fibers surface: characterization and reaction mechanisms

NISTICO', ROBERTO
Primo
;
2013

Abstract

Atmospheric Pressure Plasma-Dielectric Barrier Discharge (APP-DBD, open chamber configuration) was used to functionalize polypropylene (PP) fibers surface in order to generate oxidized-reactive groups such as hydroperoxides, alcohols and carbonyl species (i.e. ketones and others). Such a species increased the surface polarity, without causing material degradation. Three different types of plasma mixture (He, He/O2, He/O2/H2O) under three different values of applied power (750, 1050, 1400 W) were investigated. The formed plasma species (O2+, O single atom and OH radical) and their distribution were monitored via Optical Emission Spectrometry (OES) measurements, and the plasma effects on PP surface species formation were followed by X-ray Photoemission Spectroscopy (XPS). Results allowed to better understand the reaction pathways between plasma phase and PP fibers. In fact, two reaction mechanisms were proposed, the first one concerning the plasma phase reactions and the second one involving material surface modifications.
Articolo in rivista - Articolo scientifico
Hernia-repair biomaterials; Oxidation mechanism; Plasma treatment; Polypropylene fibers; Surface modification;
English
285
292
8
Nistico', R., Magnacca, G., Faga, M., Gautier, G., D’Angelo, D., Ciancio, E., et al. (2013). Effect of atmospheric oxidative plasma treatments on polypropylenic fibers surface: characterization and reaction mechanisms. APPLIED SURFACE SCIENCE, 279, 285-292 [10.1016/j.apsusc.2013.04.087].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/349702
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