Exploració per autor "Velasco Perero, José Ignacio"
Ara es mostren els items 26-45 de 148
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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 ... -
Composite and biocomposite foams based on polypropylene with reinforcements and functional fillers prepared by supercritical CO2 dissolution
Antunes, Marcelo de Sousa Pais; Redondo Realinho, Vera Cristina de; Ardanuy Raso, Mònica; Maspoch Rulduà, M. Lluïsa; Velasco Perero, José Ignacio (2011)
Text en actes de congrés
Accés restringit per política de l'editorialOne of the actual trends in polymer foams consists in the development of new materials by combining density reduction through foaming with the incorporation of functional fillers. This would enable to obtain materials with ... -
Compression properties and cellular structure of polyurethane composite foams combining nanoclay and different reinforcements
Antunes, Marcelo de Sousa Pais; Cano, Álvaro; Redondo Realinho, Vera Cristina de; Arencón Osuna, David; Velasco Perero, José Ignacio (2014-11)
Article
Accés obertIn the present work we prepared and characterized several polyurethane (PU) composite foams by combining variable concentrations of nanoclay (montmorillonite, MMT) with metal wires or low cost cellulosic-based reinforcements, ... -
Corn starch and gelatin-based films added with guabiroba pulp for application in food packaging
Malherbi, Naiane Miriam; Schmitz, Ana Camila; Grando, Remili Cristiani; Bilck, Ana Paula; Velasco Perero, José Ignacio; Matta Fakhouri, Farayde (Elsevier Ltd, 2019-03-01)
Article
Accés obertThe guabiroba pulp (GP) has natural antioxidant compounds, such as phenolic compounds and ascorbic acid. The aim of this work was to produce an active biodegradable film based on blends of gelatin (GEL) and corn starch ... -
Diseño y caracterización de mezclas EVA/plastómero para su empleo en compuestos de aislamiento acústico
Niubó Eslava, Maria; Fernández Renna, Ana Inés; Haurie Ibarra, Laia; Redondo Realinho, Vera Cristina de; Velasco Perero, José Ignacio (2010-06-23)
Comunicació de congrés
Accés restringit per política de l'editorialEn el desarrollo de materiales aislantes acústicos para sectores como la automoción, se utilizan habitualmente compuestos poliméricos con un contenido en cargas inorgánicas superior al 70% en peso. Este hecho obliga a ... -
Effect of an ionomer on the mechanical performance of flame retardant ABS formulations
Yurdakul, Zeynep; Redondo Realinho, Vera Cristina de; Antunes, Marcelo de Sousa Pais; Aydin, Süheyla; Velasco Perero, José Ignacio (2018)
Text en actes de congrés
Accés obertAcrylonitrile butadiene styrene (ABS) is a widely used thermoplastic copolymer due to its desirable properties such as good mechanical performance (toughness, impact resistance, among others), ease of processability, ... -
Effect of the recycling and annealing on the mechanical and fracture properties of poly(lactic acid)
Nascimento, L.; Gamez Pérez, José; Santana Pérez, Orlando Onofre; Velasco Perero, José Ignacio; Maspoch Rulduà, M. Lluïsa; Franco Urquiza, Edgar Adrian (2010-12)
Article
Accés restringit per política de l'editorialThe aim of this work is to evaluate the use of Poly(lactic acid)(PLA) industrial waste as a source of raw material for certain applications, as well to understand the effects of the annealing on the fracture behaviour of ... -
Effects of a phosphorus flame retardant system on the mechanical and fire behavior of microcellular ABS
Redondo Realinho, Vera Cristina de; Arencón Osuna, David; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (Multidisciplinary Digital Publishing Institute (MDPI), 2018-12-26)
Article
Accés obertThe presentwork dealswith the study of phosphorus flame retardantmicrocellular acrylonitrile– butadiene–styrene (ABS) parts and the effects of weight reduction on the fire and mechanical performance. Phosphorus-based flame ... -
Effects of carbon nanotubes/graphene nanoplatelets hybrid systems on the structure and properties of polyetherimide-based foams
Abbasi, Hooman; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (2018-03-21)
Article
Accés obertFoams based on polyetherimide (PEI) with carbon nanotubes (CNT) and PEI with graphene nanoplatelets (GnP) combined with CNT were prepared by water vapor induced phase separation. Prior to foaming, variable amounts of only ... -
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 and cellular structure on the thermal conductivity of polysulfone nanocomposite foams
Abbasi, Hooman; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (Multidisciplinary Digital Publishing Institute (MDPI), 2020-01)
Article
Accés obertPolysulfone (PSU) foams containing 0–10 wt% graphene nanoplatelets (GnP) were prepared using two foaming methods. Alongside the analysis of the cellular structure, their thermal conductivity was measured and analyzed. The ... -
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 ... -
Electrical conduction behavior of high-performance microcellular nanocomposites made of graphene nanoplatelet-filled polysulfone
Abbasi, Hooman; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (2020-12-04)
Article
Accés obertGraphene nanoplatelet (GnP)-filled polysulfone (PSU) cellular nanocomposites, prepared by two different methods—namely, water vapor-induced phase separation (WVIPS) and supercritical CO2 dissolution (scCO2) foaming—were ... -
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. ... -
Enhanced fire behavior of Casico-based foams
Redondo Realinho, Vera Cristina de; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (2016-06)
Article
Accés obertThe present work deals with the preparation and characterization of improved fire-retardant ethylene-acrylate foams. A commercial formulation, usually employed in the cable industry sector, Casico, was modified using two ... -
Enhancing the electrical conductivity of polyetherimide-based foams by simultaneously increasing the porosity and graphene nanoplatelets dispersion
Abbasi, Hooman; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (2018-09-19)
Article
Accés obertSignificant improvement in electrical conductivity of graphene nanoplatelets-filled polyetherimide (PEI) foams was achieved by simultaneously increasing the porosity and graphene nanoplatelets dispersion. Foams were prepared ... -
Esparto wool as reinforcement in hybrid polyurethane composite foams
Antunes, Marcelo de Sousa Pais; Cano, Álvaro; Haurie Ibarra, Laia; Velasco Perero, José Ignacio (2011-11)
Article
Accés restringit per política de l'editorialIn the present work polyurethane foams containing variable concentrations of nano-sized clay and esparto wool were prepared and studied, with the objective of developing new multi-scalar rigid foams. The addition of ... -
Espumas ignífugas de poliolefina libres de halógenos
Redondo Realinho, Vera Cristina de; Antunes, Marcelo de Sousa Pais; Haurie Ibarra, Laia; Maspoch Rulduà, M. Lluïsa; Velasco Perero, José Ignacio (2012)
Text en actes de congrés
Accés obertEn el presente trabajo se han preparado y caracterizado espumas ignífugas de poliolefinas libres de halógenos. Se ha utilizado para ello una formulación comercial, empleada típicamente en la industria de cables, y se le ...