| People | Locations | Statistics |
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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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Stana Kleinschek, Karin
Graz University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (46/46 displayed)
- 20233D-Printed Anisotropic Nanofiber Composites with Gradual Mechanical Propertiescitations
- 2022Organic acid cross-linked 3D printed cellulose nanocomposite bioscaffolds with controlled porosity, mechanical strength, and biocompatibilitycitations
- 2022Solid Phase Peptide Synthesis on Chitosan Thin Filmscitations
- 2021High oxygen barrier chitosan films neutralized by alkaline nanoparticlescitations
- 2021Design, Characterisation and Applications of Cellulose-Based Thin Films, Nanofibers and 3D Printed Structures
- 2020Design of stable and new polysaccharide nanoparticles composite and their interaction with solid cellulose surfacescitations
- 2020Defluorination of Polytetrafluoroethylene Surface by Hydrogen Plasmacitations
- 2019Novel Chitosan–Mg(OH)2-Based Nanocomposite Membranes for Direct Alkaline Ethanol Fuel Cellscitations
- 2019Affinity of Serum Albumin and Fibrinogen to Cellulose, Its Hydrophobic Derivatives and Blendscitations
- 2018Recent developments in surface science and engineering, thin films, nanoscience, biomaterials, plasma science, and vacuum technologycitations
- 2018Modification of cellulose thin films with lysine moietiescitations
- 2017Interaction of tissue engineering substrates with serum proteins and its influence on human primary endothelial cellscitations
- 2017Environmentally friendly procedure for in-situ coating of regenerated cellulose fibres with silver nanoparticlescitations
- 2017Reactive Maleimido Dextran Thin Films for Cysteine-Containing Surfaces Adsorbing BSAcitations
- 2017Synthesis and film formation of furfuryl- and maleimido carbonic acid derivatives of dextrancitations
- 2017Surface engineering of TiO2-MWCNT nanocomposites towards tuning of functionalities and minimizing toxicitycitations
- 2017Modificiranje poliamidnega pletiva z različnimi zeoliticitations
- 2015Cellulose thin films from ionic liquid solutions
- 2014Preparation of PDMS ultrathin films and patterned surface modification with cellulosecitations
- 2014A study on the interaction of cationized chitosan with cellulose surfacescitations
- 2013Functional patterning of biopolymer thin films using enzymes and lithographic methodscitations
- 2013Chitosan-Silane Sol-Gel Hybrid Thin Films with controllable Layer Thickness and Morphologycitations
- 2013Comparison study of TEMPO and phthalimide-N-oxyl (PINO) radicals on oxidation efficiency toward cellulosecitations
- 2013Chemical modification and characterization of poly(ethylene terephthalate) surfaces for collagen immobilizationcitations
- 2012Physicochemical properties and bioactivity of a novel class of cellulosicscitations
- 2012Etching of polyethylene terephthalate thin films by neutral oxygen atoms in the late flowing afterglow of oxygen plasmacitations
- 2012Adsorption of carboxymethyl cellulose on polymer surfacescitations
- 2012Synthesis of magnetic iron oxide particlescitations
- 2012Uv Polymerization of Poly (N-Isopropylacrylamide) Hydrogel
- 2012Characterization of viscose fibers modified with 6-deoxy-6-amino cellulose sulfatecitations
- 2012The Plasma Polymerisation Process For The Deposition Of Amino-Containing Film On The Poly(Ethylene Terephthalate) Dressing-Layer For Safe Wound-Healing
- 2011Wettability and surface composition of partly and fully regenerated cellulose thin films from trimethylsilyl cellulosecitations
- 2011Deposition of silicon doped and pure hydrogenated amorphous carbon coatings on quartz crystal microbalance sensors for protein adsorption studiescitations
- 2011Protonation behavior of 6-deoxy-6-(2-aminoethyl)amino cellulosecitations
- 2009Electrokinetic properties of polypropylene-layered silicate Nanocomposite fiberscitations
- 2008Carboxyl groups in pre-treated regenerated cellulose fibrescitations
- 2008Adsorption of chitosan on PET films monitored by quartz crystal microbalancecitations
- 2008Topochemical modification of cotton fibres with carboxymethyl cellulosecitations
- 2007Nanofilled polypropylene fibres
- 2007Influence of surface energy on the interactions between hard coatings and lubricantscitations
- 2005Determination of the accessible carboxyl and amino end groups in structurally modified PA 6 using titration methods
- 2004Determination of dissociable groups in natural and regenerated cellulose fibers by different titration methodscitations
- 2004Determining the Surface Free Energy of Cellulose Materials with the Powder Contact Angle Methodcitations
- 2003Characterisation of modified polypropylene fibrescitations
- 2002Modifikacije PA 6 z NH3 plazmo
- 2000Analiza povrsine vlaken z mikroskopijo atomskih sil (AFM)
Places of action
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article
Modifikacije PA 6 z NH3 plazmo
Abstract
<p>Plasmas are widely used to modify surface properties of various materials, including textiles. Additional or new groups are introduced to the surfaces, or the surfaces are coated with thin polymer films or special plasma cleaning of surfaces is carried out. This work deals with low pressure NH<sub>3</sub> plasma treatment of PA 6 foils and the evaluation of surface modification as a function of treatment time (7 to 540 s). The introduced functionalities were observed by contact angle measurements (assessment of wettability), streaming potential measurements (surface charge), XPS analysis (nature of introduced functionalities), and AFM (surface topography). The results show that achieved modifications depend on treatment time. NH<sub>3</sub> plasma improves wettability of PA 6 reducing the contact angles. The introduction of N-containing groups is increasing with longer treatment time. The nitrogen content on the foil«s surface is increased and the isoelectric point (IEP) is shifted toward higher pH values. The biggest shift of IEP was found when the treatment time was 20 s (from pH of 4,2 toward pH of 6,2). With longer treatment time, the negative plasma effect of surface destruction prevails over the positive effect of the introduction of functional groups. The nitrogen content, therefore, is reduced, contact angles are increased and IEP is shifted toward pH of 5,6 (treatment time of 180 s). AFM images of non-treated and treated samples show that plasma treatment causes loose debris on the surface, which become more numerous and larger with longer treatment time. The mean roughness is increased from 4 nm (non-treated sample) to 13,6 nm (treatment time of 540 s).</p>