Browsing by Author "Saja, José Antonio de"

Now showing items 1-11 of 11

    • Almidón termoplástico celular reforzado con fibras naturales: Una opción biodegradable para el envasado de alimentos 

      López Gil, Alberto; Belluci, F.S.; Ardanuy Raso, Mònica; Rodríguez-Pérez, Miguel Ángel; Saja, José Antonio de (2012-08-20)
      Article
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      Los bioplasticos representan un interesante sector en el mundo de los materiales y actualmente son objeto de un profundo estudio tanto desde el punto de vista académico como tecnológico. Ello es debido principalmente a su ...

    • Foaming behavior, cellular structure and physical properties of polybenzoxazine foams 

      Ardanuy Raso, Mònica; Rodríguez-Pérez, Miguel Ángel; Saja, José Antonio de; Velasco Perero, José Ignacio (2012-04-10)
      Article
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      In this paper, polymer foams based on a benzoxazine resin have been successfully prepared using azodicarbonamide (ADC) as a chemical blowing agent and have been characterized regarding their foaming behavior, cellular ...

    • Foaming of polypropylene by using both chemical and physical blowing agents. A comparative study of the structure and physical properties 

      Saiz-Arroyo, Cristina; Rodríguez-Pérez, Miguel Ángel; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio; Saja, José Antonio de (2010)
      Conference report
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      Microcellular foams have focused attention of researches due to improvement in some properties when compared to conventional foams. Several production routes for these materials have been developed although most of them ...

    • Heat transfer in polypropylene-based foams produced using different foaming processes 

      Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio; Redondo Realinho, Vera Cristina de; Martínez Velasco, Antonio Benito; Rodríguez-Pérez, Miguel Ángel; Saja, José Antonio de (Wiley, 2009-10)
      Article
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      This paper presents the characterization of the cellular structure and thermal conduction behaviour of polypropylene foams produced using different foaming processes, with the aim of selecting the best possible PP foam ...

    • Influence of foaming process on the structure-properties relationship of foamed LDPE/silica nanocomposites 

      Saiz Arroyo, Cristina; Rodríguez Pérez, Miguel Ángel; Velasco Perero, José Ignacio; Saja, José Antonio de (Elsevier, 2013-05)
      Article
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      In this paper LDPE/silica nanocomposites are foamed by two different processes. First one is the pressure quench method which is based on the use of a physical blowing agent and second one is the improved compression ...

    • Moulded polypropylene foams produced using chemical or physical blowing agents: structure–properties relationship 

      Saiz-Arroyo, Cristina; Saja, José Antonio de; Velasco Perero, José Ignacio; Rodríguez-Pérez, Miguel Ángel (2012)
      Article
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      Polypropylene (PP) foams have become essential items due to their excellent properties. Nevertheless, obtaining net-shaped PP foams with medium relative densities is a complicated issue. In this article, two processes ...

    • 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
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      A 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 ...

    • 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
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      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 ...

    • The effect of anionic clay particles on the structure and thermomechanical behavior of sodium partially-neutralized EMAA ionomer 

      Ardanuy Raso, Mònica; Velasco Perero, José Ignacio; Rodríguez-Pérez, Miguel Ángel; Saja, José Antonio de (2010-06-20)
      Article
      Open Access
      Nanocomposites based on a sodium partially-neutralized ionomer of poly (ethylene-comethacrylic acid) (EMAA) and MgAl layered double hydroxide (LDH) particles with and without organic modification were prepared from a melt ...

    • 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
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      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
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      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 ...