Exploració per autor "Gedler, Gabriel"
Ara es mostren els items 1-20 de 20
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Characterization of polycarbonate foam structures prepared by one-step SC-CO2 dissolution process
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Redondo Realinho, Vera Cristina de; Velasco Perero, José Ignacio (2012)
Comunicació de congrés
Accés obertIn this communication polycarbonate foams were prepared by a supercritical CO2 dissolution one-step batch foaming process. Firstly, CO2 diffusion behavior in polycarbonate was studied by means of desorption experiments. ... -
Comportamiento mecánico dinámico de espumas de policarbonato
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Redondo Realinho, Vera Cristina de; Velasco Perero, José Ignacio (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialSe caracterizan por DMTA espumas de policarbonato (PC) y de policarbonato con nanopartículas de grafeno, producidas mediante dos procesos diferentes de disolución de CO2 supercrítico con posterior expansión en una o en dos ... -
Development of polycarbonate multifunctional foams with graphene nanoplatelets
Gedler, Gabriel (Universitat Politècnica de Catalunya, 2016-07-12)
Tesi
Accés obertThe goal of this research was to determine the relations between processing, structure and properties of polycarbonate-graphene nanoplatelets (PC-GnP) foams. Using two different foaming processes (in one and two steps) ... -
Effects of graphene concentration, relative density and cellular morphology on the thermal conductivity of polycarbonate–graphene nanocomposite foams
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio; Ozisik, Rahmi (2016-02)
Article
Accés obertThe thermal conductivity of polycarbonate–graphene nanocomposite foams was studied as a function of relative density, developed cellular structure and graphene concentration. Two types of supercritical CO2 foaming processes ... -
Effects of graphene nanoplatelets on the morphology of polycarbonate-graphene composite foams prepared by supercritical carbon dioxide two-step foaming
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (2015-05)
Article
Accés obertLow density polycarbonate foams containing different amounts of graphene nanoplatelets with variable cellular morphologies were prepared using a supercritical carbon dioxide two-step foaming process, which consisted of the ... -
Electromagnetic shielding effectiveness of polycarbonate/graphene nanocomposite foams processed in 2-steps with supercritical carbon dioxide
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio; Ozisik, Rahmi (2015)
Article
Accés obertThe electromagnetic interference (EMI) shielding properties of polycarbonate/graphene composites foamed with supercritical carbon dioxide were investigated as a function of cellular morphology and graphene particle dispersion. ... -
Enhanced electrical conductivity in graphene-filled polycarbonate nanocomposites by microcellular foaming with sc-CO2
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (2016-01)
Article
Accés obertElectrically conductive polycarbonate (PC) foams containing a low concentration of graphene nanoplatelets (0.5 wt.%) were produced with variable range of expansion ratio by applying a high-pressure batch foaming process ... -
Enhanced electromagnetic interference shielding effectiveness of polycarbonate/graphene nanocomposites foamed via 1-step supercritical carbon dioxide process
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio; Ozisik, Rahmi (2016-01)
Article
Accés obertThe dielectric and electromagnetic interference (EMI) shielding properties of polycarbonate/graphene nanocomposites foamed using supercritical carbon dioxide were studied as a function of their cellular and compositemorphology. ... -
Graphene nanoplatelets as a multifunctional filler for polymer foams
Antunes, Marcelo de Sousa Pais; Gedler, Gabriel; Abbasi, Hooman; Velasco Perero, José Ignacio (Elsevier, 2016-03)
Article
Accés obertDue to their high mechanical and transport properties, graphene-derived materials have aroused a great deal of interest in the most varied sectors. Among these, graphene nanoplatelets have been gaining interest due to the ... -
Graphene-induced crystallinity of bisphenol A polycarbonate in the presence of supercritical carbon dioxide
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (Elsevier, 2013-11-01)
Article
Accés restringit per política de l'editorialChanges in the crystallinity of polycarbonate (PC) induced by the simultaneous presence of 0.5 wt% graphene nanoplatelets (GnP) and supercritical carbon dioxide (sc-CO2) were examined by means of Raman spectroscopy, WAXS, ... -
Influencia de las nanocargas en las propiedades termomecánicas de espumas poliméricas
Antunes, Marcelo de Sousa Pais; Gedler, Gabriel; Redondo Realinho, Vera Cristina de; Velasco Perero, José Ignacio (2012)
Comunicació de congrés
Accés obertSe presenta la influencia de nanopartículas y nanofibras sobre las propiedades termomecánicas de espumas poliméricas. A una formulación base polipropileno especial para espumación se le incorporaron nanocargas (silicatos ... -
Low density polycarbonate-graphene nanocomposite foams produced by supercritical carbon dioxide two-step foaming. Thermal stability
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (Elsevier, 2016-05)
Article
Accés obertThe thermal stability of low density polycarbonate-graphene nanocomposite foams prepared by supercritical carbon dioxide two-step foaming was investigated. Unfilled polycarbonate foams showed improved thermal stabilities ... -
Microstructural characteristics of graphene/polycarbonate nanocomposite foams
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Rende, Deniz; Schadler, Linda; Velasco Perero, José Ignacio; Ozisik, Rahmi (2014)
Text en actes de congrés
Accés restringit per política de l'editorialThe microstructural characteristics of polycarbonate-graphene nanocomposite foams prepared using supercritical CO2 foaming are investigated using small and wide angle X-ray diffraction to understand the effect of graphene, ... -
Multifunctional foams made of polymer nanocomposites
Arencón Osuna, David; Velasco Perero, José Ignacio; Realiño, Vera; Antunes, Marcelo de Sousa Pais; Gedler, Gabriel (Campus de Terrassa de la UPC, 2013-06-13)
Text en actes de congrés
Accés obert -
Multifunctional nanocomposite foams based on polypropylene with carbon nanofillers
Antunes, Marcelo de Sousa Pais; Gedler, Gabriel; Velasco Perero, José Ignacio (2013-05)
Article
Accés restringit per política de l'editorialThis work considers the preparation and characterization of polypropylene foams with variable concentrations of graphene and carbon nanofibres, focussing on the influence of the foaming process and the nanofillers on the ... -
Novel polycarbonate-graphene nanocomposite foams prepared by CO2 dissolution
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Redondo Realinho, Vera Cristina de; Velasco Perero, José Ignacio (IOP PUBLISHING LTD., 2012)
Article
Accés obertPolycarbonate foams reinforced with 0,5 wt% of graphene were obtained by firstly melt-mixing the polycarbonate and graphene in an internal mixer, compression-moulding the melt-compounded grinded material and lastly dissolving ... -
Nucleation efficiency of talc in the foaming behavior and cellular structure of polyolefin-based foams: new perspectives for optimized lightweight materials
Meli, Gilles; Abler, Caroline; Jouffret, Frédéric; Antunes, Marcelo de Sousa Pais; Gedler, Gabriel; Arencón Osuna, David; Velasco Perero, José Ignacio (2012)
Text en actes de congrés
Accés restringit per política de l'editorialThe research consisted in evaluating the nucleation efficiency of different types of talc (with different particle size distributions, morphologies and even surface modifications) in the foaming behaviour and cellular ... -
Polycarbonate foams with tailor-made cellular structures by controlling the dissolution temperature in a two-step supercritical carbon dioxide foaming process
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (2014-04)
Article
Accés restringit per política de l'editorialClosed-cell polycarbonate foams were prepared using a two-step foaming process, which consisted of the initial dissolution of supercritical CO2(scCO2) into PC foaming precursors and their later expansion by heating using ... -
Thermal stability of polycarbonate-graphene nanocomposite foams
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Redondo Realinho, Vera Cristina de; Velasco Perero, José Ignacio (2012)
Article
Accés restringit per política de l'editorialA thermogravimetric study in both nitrogen and air atmospheres has been carried out on unfilled and graphene-reinforced solid and foamed polycarbonate. Polycarbonate foams were prepared using a supercritical CO2 dissolution ... -
Viscoelastic properties of polycarbonate-graphene nanoplatelets nanocomposite foams
Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (Elsevier, 2016-05)
Article
Accés obertThe viscoelastic properties of polycarbonate (PC) nanocomposite foams containing graphene nanoplatelets (GnP), prepared by one and two-step supercritical CO2 dissolution, were characterized by dynamic-mechanical-thermal ...