Ara es mostren els items 31-49 de 49

    • 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'editorial
      Microcellular 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 ...
    • 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 obert
      The 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 ...
    • 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 obert
      Polycarbonate 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 ...
    • Polypropylene foams: production, structure and properties 

      Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio; Redondo Realinho, Vera Cristina de (Nova Science Publishers, 2011-11-01)
      Capítol de llibre
      Accés restringit per política de l'editorial
      It is well known the relevance given to the study of heat transfer in polymer foams, as one of the main applications is as lightweight thermal insulating elements. Alongside some of the possible strategies for improving ...
    • Polypropylene/Clay Nanocomposites: Combined effects of clay treatment and compatibilizer polymers on the structure and properties 

      Velasco Perero, José Ignacio; Ardanuy Raso, Mònica; Redondo Realinho, Vera Cristina de; Antunes, Marcelo de Sousa Pais; Fernández Renna, Ana Inés; González-Peña, J.I.; Rodríguez-Pérez, Miguel Ángel; Saja, José Antonio de (Wiley, 2006)
      Article
      Accés restringit per política de l'editorial
      Combined effects of clay treatment and compatibilizer polymers on the structure and properties of polypropylene/clay nanocomposites were studied. Dynamic mechanical analysis was used to analyze comparatively the dynamic ...
    • Porous membranes based on polypropylene-ethylene copolymers. Influence of temperature on extrusion, annealing and uniaxial strain stages 

      Castejón Galán, María del Pilar; Arencón Osuna, David; Antunes, Marcelo; Redondo Realinho, Vera Cristina de; Velasco Perero, José Ignacio; Martínez Benasat, Antonio (Multidisciplinary Digital Publishing Institute (MDPI), 2018-08-02)
      Article
      Accés obert
      In this study, block and random copolymers of polypropylene–ethylene are selected to prepare porous membranes through the melt extrusion-annealing-uniaxial stretching technique (MEAUS), at a constant draw ratio. In some ...
    • Preparación y caracterización de espumas microcelulares nanoreforzadas 

      Redondo Realinho, Vera Cristina de; Antunes, Marcelo de Sousa Pais; Santana Pérez, Orlando Onofre; Sánchez Soto, Miguel; Velasco Perero, José Ignacio (2010-06-23)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Las espumas microcelulares poseen óptimas propiedades específicas que pueden ser ampliadas por incorporación de nanopartículas laminares y/o sustratos inorgánicos. Por ello, en el presente estudio se han preparado, por el ...
    • Preparación y caracterización de espumas multifuncionales de polipropileno 

      Antunes, Marcelo de Sousa Pais; Redondo Realinho, Vera Cristina de; Martínez Benasat, Antonio; Maspoch Rulduà, M. Lluïsa; Velasco Perero, José Ignacio (Universidad de Zaragoza / Instituto de Ciencia de Materiales de Aragón ; Sociedad Española de Materiales, 2010-06-23)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      La combinación de la espumación junto con refuerzos funcionales permite ampliar el rango de propiedades de los sólidos, añadiendo a una elevada rigidez específica la regulación de otras características como las propiedades ...
    • Single and hybrid organoclay-filled PLA nanocomposites: mechanical properties, viscoelastic behavior and fracture toughening mechanism 

      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 (Wiley, 2021-04-04)
      Article
      Accés obert
      Poly (lactic acid) (PLA) nanocomposites based on single and hybrid organic-modified montmorillonites were previously studied in terms of their morphologi-cal, thermal and fire performance. As surfactants of the organoclays ...
    • Study of the cellular structure heterogeneity and anisotropy of polypropylene and polypropylene nanocomposite foams 

      Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio; Redondo Realinho, Vera Cristina de; Solórzano Quijano, Eusebio (Society of Plastics Engineers, 2009)
      Article
      Accés restringit per política de l'editorial
      This article presents the analysis of the processing parameters influence on the foaming behavior and cellular structure of PP-montmorillonite foams. Polypropylene nanocomposites containing 5.0 phr of an organically- modified ...
    • Study of the influence of the pressure drop rate on the foaming behavior and dynamic-mechanical properties of CO2 dissolution microcellular polypropylene foams 

      Antunes, Marcelo de Sousa Pais; Redondo Realinho, Vera Cristina de; Velasco Perero, José Ignacio (2010)
      Article
      Accés restringit per política de l'editorial
      This article presents the preparation of microcellular polypropylene foams produced by a CO2 batch-foaming process and their characterization regarding the influence of the pressure drop rate on the foaming behavior and ...
    • The components’ roles in thermal stability and flammability of cork powder 

      Ghonjizadehsamani, Farnaz; Haurie Ibarra, Laia; Malet, Ramon; Redondo Realinho, Vera Cristina de (Multidisciplinary Digital Publishing Institute (MDPI), 2023-05-18)
      Article
      Accés obert
      In this study, an analysis of the influence of extractives, suberin and lignocellulosic components on the pyrolysis decomposition and fire reaction mechanisms of a cork oak powder from Quercus suber L. is presented. The ...
    • The effect of brazilian organic-modified montmorillonites on the thermal stability and fire performance of organoclay-filled PLA 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 (2020-06-07)
      Article
      Accés obert
      To investigate the influence of chemical compositions of organoclays on the thermal stability and fire behavior of PLA nanocomposites, 2, 6 and 8 wt% of single and hybrid Brazilian organically-modified montmorillonites ...
    • The effects of combining nanoclay and steel wires multi-scalar reinforcements on the structure and properties of polyurethane foams 

      Cano, Álvaro; Antunes, Marcelo de Sousa Pais; Redondo Realinho, Vera Cristina de; Haurie Ibarra, Laia; Velasco Perero, José Ignacio (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper we prepared and characterized several polyurethane composite foams by combining variable concentrations of organophilic clay (montmorillonite) and metal reinforcement, with the objective of developing novel ...
    • Thermal conductivity anisotropy in polypropylene foams prepared by supercritical CO2 dissolution 

      Antunes, Marcelo de Sousa Pais; Redondo Realinho, Vera Cristina de; Velasco Perero, José Ignacio; Solórzano Quijano, Eusebio; Rodríguez-Pérez, Miguel Ángel; Saja, José Antonio de (2012-09)
      Article
      Accés restringit per política de l'editorial
      Different relative density polypropylene foams were prepared by means of two foaming processes: chemical foaming by compression moulding and physical foaming by high pressure CO2 dissolution. By controlling the foaming ...
    • Thermal Conductivity of Carbon Nanofibre-Polypropylene Composite Foams 

      Antunes, Marcelo de Sousa Pais; Redondo Realinho, Vera Cristina de; Solórzano Quijano, Eusebio; Rodríguez-Pérez, Miguel Ángel; Saja, José Antonio de; Velasco Perero, José Ignacio (Trans Tech Publications, 2010)
      Article
      Accés restringit per política de l'editorial
      Carbon nanofibre-reinforced polypropylene nanocomposites containing from 5 to 20 wt.% of carbon nanofibres and a chemical blowing agent were melt-compounded and later foamed using compression-moulding. Alongside their ...
    • Thermal stability and fire behaviour of flame retardant high density rigid foams based on hydromagnesite-filled polypropylene composites 

      Redondo Realinho, Vera Cristina de; Haurie Ibarra, Laia; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (Elsevier, 2014-03)
      Article
      Accés restringit per política de l'editorial
      The present work deals with the development of new rigid polypropylene composite foams filled with high amounts of flame-retardant systems based on synthetic hydromagnesite, a basic magnesium carbonate obtained from an ...
    • 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'editorial
      A 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 ...