Abstract The present work investigates the application of plasma glow discharge to deposit fluoropolymer coatings. Two series experiments were carried out in which influence pressure and current strength on surface coatings morphology during its treatment with was investigated. is investigated by a scanning electron microscope (SEM), water contact angle (WCA) measured. fact that choice signific...

Glow discharge optical emission spectroscopy (GDOES) is a useful technique for qualitative plasma characterization. It also enables depth profiling of solid materials upon exposure samples to energetic positively charged ions from gaseous plasma, providing specifics both surface- and gas-phase collision phenomena that are considered. The early stages developing GDOES the determination surface c...

für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

The chestnut shell from the Amazon region shared between Colombia, Brazil, and Perú is an abundant residue of walnut used for obtaining food cosmetic products. This not yet usable due to lack knowledge its properties environmental impact generated by treatment through methods such as mercerization. work presents results characterization residues treated two methods, mercerization with NaOH solu...

Space resolved concentrations of helium He (S1) metastable atoms in an atmospheric pressure radio-frequency micro-plasma jet were measured using tunable diode laser absorption spectroscopy. The spatial profile of metastable atoms in the volume between the electrodes was deduced for various electrode gap distances. Density profiles reveal the sheath structure and reflect the plasma excitation di...

Elemental and isotopic structures of the palladium cathode before and after experiment under DC glow discharge were investigated by time of flight secondary ion mass spectrometry (TOF-SIMS). Production of new elements with various atomic masses and impurities increase were surveyed. By analyzing obtained results, it was found that beryllium and nickel for deuterium-palladium system, and lithium...

Fluoropolymer ®lms prepared by radio frequency glow discharge (RF-glow discharge) are of interest as biomaterials coatings. Previous studies focused on hexa ̄uoroethane (C2F6, HFE) and tetra ̄uoroethylene (C2F4, TFE) as the monomer precursor have shown such surfaces to exhibit unique protein binding capabilities. In this study, slow, surface directed deposition of hexa ̄uoropropylene (C3F6, HFP) ®...

Theoretical and experimental studies of various modes corona discharge operation in atmospheric pressure air are presented this short review. The original results modeling negative discharges presented, taking into account the non-stationary plasma-chemical kinetics charged particles plasma. space–time evolution needle-to-plane geometry is investigated analyzed. Several stages development revea...

Within the current work an attempt was made to use glow discharge low temperature plasma processing to produce carbon coatings on polypropylene unwoven fabric for electromagnetic field shielding applications. Layers were obtained from the gaseous phase (propane–butane). The influence of coatings on the dielectric buffer properties of modified fabrics was investigated. The Havriliak–Negami (HN) ...