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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vesel, Alenka
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024Exploring chitosan-plant extract bilayer coatingscitations
- 2024Carboxymethylated and sulfated furcellaran from furcellaria lumbricalis and its immobilization on PLA scaffoldscitations
- 2023Carbon nanotube network formation and configuration/morphology on reinforcing and conductive performance of polymer-based nanocompositescitations
- 2023Green synthesis of a magnetite/graphitic carbon nitride 2D nanocomposite for efficient Hg2+ remediationcitations
- 2022Two-layer functional coatings of chitosan particles with embedded catechin and pomegranate extracts for potential active packagingcitations
- 2021Mechanisms of single-walled carbon nanotube network formation and its configuration in polymer-based nanocompositescitations
- 2021Distribution of the Deposition Rates in an Industrial-Size PECVD Reactor Using HMDSO Precursorcitations
- 2020Defluorination of Polytetrafluoroethylene Surface by Hydrogen Plasmacitations
- 2020Nano-mesh superstructure in single-walled carbon nanotube/polyethylene nanocomposites, and its impact on rheological, thermal and mechanical propertiescitations
- 2014Synthesis of iron-oxide nanowires using industrial-grade iron substratescitations
- 2014Oxidation of Inconel 625 superalloy upon treatment with oxygen or hydrogen plasma at high temperaturecitations
- 2014Antibacterial performance of alginic acid coating on polyethylene filmcitations
- 2013Antimicrobial silver nitrate-doped polyvinyl chloride cast films: Influence of solvent on morphology and mechanical propertiescitations
- 2012Etching of polyethylene terephthalate thin films by neutral oxygen atoms in the late flowing afterglow of oxygen plasmacitations
- 2012A Catalytic Sensor for Measurement of Radical Density in CO2 Plasmascitations
- 2011Wettability and surface composition of partly and fully regenerated cellulose thin films from trimethylsilyl cellulosecitations
- 2010An in vitro bacterial adhesion assessment of surface-modified medical-grade PVCcitations
- 2010A Physicochemical Approach to Render Antibacterial Surfaces on Plasma-Treated Medical-Grade PVC: Irgasan Coatingcitations
- 2010Characterization of Antibacterial, Mechanical, and Structural Properties of Polyvinyl Chloride/Silver Nitrate Composites Prepared by Thermoplastic Compoundingcitations
- 2007Oxygen plasma functionalization of poly(p-phenilene sulphide)citations
Places of action
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article
Defluorination of Polytetrafluoroethylene Surface by Hydrogen Plasma
Abstract
<p>Defluorination of polytetrafluoroethylene (PTFE) surface film is a suitable technique for tailoring its surface properties. The influence of discharge parameters on the surface chemistry was investigated systematically using radio-frequency inductively coupled H<sub>2</sub> plasma sustained in the E-and H-modes at various powers, pressures and treatment times. The surface finish was probed by X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The measurements of water contact angles (WCA) showed increased wettability of the pristine PTFE; however, they did not reveal remarkable modification in the surface chemistry of the samples treated at various discharge parameters. By contrast, the combination of XPS and ToF-SIMS, however, revealed important differences in the surface chemistry between the E-and H-modes. A well-expressed minimum in the fluorine to carbon ratio F/C as low as 0.2 was observed at the treatment time as short as 1 s when plasma was in the H-mode. More gradual surface chemistry was observed when plasma was in the E-mode, and the minimal achievable F/C ratio was about 0.6. The results were explained by the synergistic effects of hydrogen atoms and vacuum ultraviolet radiation.</p>