Exploració per autor "Antunes, Marcelo de Sousa Pais"
Ara es mostren els items 55-74 de 106
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Influence of chemical composition of Brazilian organoclays on the morphological, structural and thermal properties of PLA-organoclay nanocomposites
Lopes Alves, Jefferson; De Tarso Viera e Rosa, Paulo; Redondo Realinho, Vera Cristina de; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio; Morales, Ana Rita (2019-07-17)
Article
Accés restringit per política de l'editorialThe effects of adding different Brazilian organoclays, containing di-(hydrogenated tallow) dimethyl ammonium chloride (HTA), trihexyl tetradecyl phosphonium chloride (TDP), di(alkyl ester) dimethyl ammonium chloride (EA) ... -
Influence of chemical nature, expansion ratio and cellular morphology on the fracture behaviour of flexible polyolefin-based foams assessed by the Essential Work of Fracture (EWF)
Arencón Osuna, David; Antunes, Marcelo de Sousa Pais; Redondo Realinho, Vera Cristina de; Velasco Perero, José Ignacio (2015-05)
Article
Accés obertSeveral commercial polyolefin-based flexible foams produced by extrusion foaming were characterized in terms of their cellular morphology and fracture behaviour using the concept of the Essential Work of Fracture (EWF), ... -
Influence of polyamide-imide concentration on the cellular structure and thermo-mechanical properties of polyetherimide/polyamide-imide blend foams
Abbasi, Hooman; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (2015-08)
Article
Accés restringit per política de l'editorialThe present work considers the preparation of medium-density polyetherimide (PEI)/polyamide-imide (PAI) blend foams by means of water vapor-induced phase separation (WVIPS) and their characterization. While pure polymer ... -
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 ... -
Micro-raman analysis of the molecular orientation of flexible polyolefin foams
Antunes, Marcelo de Sousa Pais; Arencón Osuna, David; Redondo Realinho, Vera Cristina de; Velasco Perero, José Ignacio (2009)
Comunicació de congrés
Accés obert -
Microcellular Foaming of Layered Double Hydroxide-Polymer Nanocomposites
Martínez Benasat, Antonio; Redondo Realinho, Vera Cristina de; Antunes, Marcelo de Sousa Pais; Maspoch Rulduà, M. Lluïsa; Velasco Perero, José Ignacio (American Chemical Society (ACS), 2011)
Article
Accés restringit per política de l'editorialMicrocellular foams of polystyrene (PS), poly(styrene-co-acrylonitrile) (SAN), and poly(methyl methacrylate) (PMMA) having organically modified layered double hydroxides (LDH) were prepared using a high-pressure CO2 ... -
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, ... -
Microstructure anisotropy in polyolefin flexible foams
Antunes, Marcelo de Sousa Pais; Arencón Osuna, David; Redondo Realinho, Vera Cristina de; Velasco Perero, José Ignacio (IOP Publishing Ltd., 2009-11)
Article
Accés obertThe use of polyolefin flexible foams with typical thicknesses between 1 and 3 mm produced by a physical foaming extrusion process is nowadays quite widespread in the packaging sector. Their high flexibility and closed-cell ... -
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 ... -
Nanocomposites of in-situ polymerized cyclic butylene terephthalate and polyhedral oligomeric silsesquioaxanes
Abt, Tobias Martin; Illescas Fernandez, Silvia; Antunes, Marcelo de Sousa Pais; Cáceres Moreno, María Angélica; Sánchez Soto, Miguel (2010-05-03)
Text en actes de congrés
Accés obertNanocomposites were prepared by in-situ polymerization of CBT®, a cyclic form of poly(butylene terephthalate) (PBT) and polyhedral oligomeric silsesquioxane (POSS®) with 2.5, 5 and 10 wt% POSS content. Three different types ... -
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 ... -
Optical expandometry: a technique to analyze the expansion kinetics of chemically blown thermoplastic foams
Solórzano Quijano, Eusebio; Antunes, Marcelo de Sousa Pais; Saiz-Arroyo, Cristina; Rodríguez-Pérez, Miguel Ángel; Velasco Perero, José Ignacio; Saja, José Antonio de (2012-07)
Article
Accés restringit per política de l'editorialA novel technique to determine in situ the free expansion kinetics of chemically foamed thermoplastic foams, so-called optical expandometry, is presented in this work. This technique is based on the camera monitoring ... -
PLA-based foams: tissue engineering
Velasco Perero, José Ignacio; Antunes, Marcelo de Sousa Pais (2015-04-02)
Capítol de llibre
Accés restringit per política de l'editorialBiodegradable porous scaffolds with or without bioactive molecules prepared by clean techniques attract an enormous interest for tissue engineering applications. Scaffolds work as structural support for both cell ... -
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 ... -
Polyetherimide foams filled with low content of graphene nanoplatelets prepared by scCO2 dissolution
Abbasi, Hooman; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (Multidisciplinary Digital Publishing Institute (MDPI), 2019-02-13)
Article
Accés obertPolyetherimide (PEI) foams with graphene nanoplatelets (GnP) were prepared by supercritical carbon dioxide (scCO2) dissolution. Foam precursors were prepared by melt-mixing PEI with variable amounts of ultrasonicated GnP ... -
Polyimides
Abbasi, Hooman; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (2015-12-22)
Capítol de llibre
Accés restringit per política de l'editorial -
Polymeric Foams
Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (Multidisciplinary Digital Publishing Institute (MDPI), 2019-07-12)
Article
Accés obert