Browsing by Subject "Escumes (Indústria química)"

Now showing items 1-9 of 9

    • Acabado de tejido para tapicería con fluorocarbono mediante aplicación con espuma 

      Carrión Fité, Francisco Javier; Marín, Miguel Angel (Instituto de Investigación Textil y Cooperación Industrial, 2001-07)
      Article
      Open Access
      La aplicación de espumas para vehiculizar formulaciones de acabado de tejidos presenta notorias ventajas respecto al método convencional por fulardado de soluciones acuosas. Entre tales ventajas, cabe indicar: el ahorro ...

    • Estudio de las propiedades mecánicas, térmicas y de comportamiento al fuego de aerogeles polímero/arcilla 

      Rojas Adamez, Jesus Baldemar (Universitat Politècnica de Catalunya, 2011-09)
      Master thesis
      Restricted access - author's decision
      Las espumas poliméricas son unos materiales de gran interés industrial debido a su versatilidad en cuanto a propiedades y a su elevada ligereza. Así por ejemplo encontramos las espumas de poliestireno, poliuretano, etc. ...

    • 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
      Restricted access - publisher's policy
      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 ...

    • 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)
      Conference lecture
      Open Access

    • 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
      Open Access
      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 ...

    • 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
      Restricted access - publisher's policy
      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 ...

    • Polyurethane foams from renewable and sustainable polyols 

      Finez Acero, Noemi (Universitat Politècnica de Catalunya / Universidade Técnica de Lisboa, 2013)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Universidade de Lisboa
      The aim of this thesis is the production of polyurethane foams with polyols from liquefied wood. The objective is to find the best combination of appropriate properties to polyurethane foams with maximum content of polyols ...

    • Preparation and characterization of cellulosic fibre-reinforced polypropylene foams 

      Ardanuy Raso, Mònica; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio (Trans Tech Publications, 2010)
      Article
      Restricted access - publisher's policy
      The preparation and characterization of cellulosic fibre-reinforced polypropylene composite foams is presented. The cellulose fibres were isolated from a barley straw obtained from local sources. They were compounded with ...

    • 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
      Restricted access - publisher's policy
      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 ...