Now showing items 21-40 of 77

  • Effect of microcellular foaming on the fracture behavior of ABS polymer 

    Gómez Monterde, Javier; Schulte, M.; Ilijevic, Stefan; Hain, J; Sánchez Soto, Miguel; Santana Pérez, Orlando Onofre; Maspoch Rulduà, Mª Lluïsa (2016)
    Article
    Open Access
    In this work, the properties of microcellular ABS were studied. Foamed samples exhibited a solid skin/foamed core struc- ture, with some elongated cells in the flow direction, while spherical cells were mostly observed in ...
  • 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, Mª Lluïsa; Franco Urquiza, Edgar Adrian (2010-12)
    Article
    Restricted access - publisher's policy
    The 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 ...
  • Effect of the strain rate and drawing temperature on the mechanical behavior of EVOH and EVOH composites 

    Franco Urquiza, Edgar Adrian; Gamez Pérez, José; Velázquez Infante, Julio Cesar; Santana Pérez, Orlando Onofre; Martínez Benasat, Antonio; Maspoch Rulduà, Mª Lluïsa (2012-02-27)
    Article
    Restricted access - publisher's policy
    The effect of the strain rate and draw temperature on the mechanical behavior of ethylene vinyl alcohol (EVOH) and EVOH composites was analyzed. When EVOH is stretched at moderate strain rates, evidence of strain-induced ...
  • Effect of the unidirectional drawing on the thermal and mechanical properties of PLA films with different L -isomer content 

    Velázquez Infante, Julio Cesar; Gamez Pérez, José; Franco Urquiza, Edgar Adrian; Santana Pérez, Orlando Onofre; Carrasco, F; Maspoch Rulduà, Mª Lluïsa (2013-02-15)
    Article
    Restricted access - publisher's policy
    This work simulates the thermoforming process of two different L-isomer content PLA grades (95.6 and 98%), studying the influence on the induced morphology and the variation in the thermal and tensile properties. The ...
  • Effect of the viscosity ratio on the PLA/PA10.10 bioblends morphology and mechanical properties 

    Cailloux, Jonathan; Abt, Tobias; García Masabet, Violeta del Valle; Santana Pérez, Orlando Onofre; Sánchez Soto, Miguel; Carrasco Alonso, Félix Ángel; Maspoch Rulduà, Mª Lluïsa (2018-01-30)
    Article
    Open Access
    PLA bio-blends with a predominantly biosourced PA10.10 in the composition range 10-50wt.% were prepared by melt blending in order to overcome the advanced brittleness of PLA. Due to the inherent immiscibility of the blends, ...
  • Enhanced general analytical equation for the kinetics of the thermal degradation of poly(lactic acid) driven by random scission 

    Carrasco Alonso, Félix Ángel; Perez Maqueda, L.A.; Sanchez Jimenez, P.E.; Perejón, A.; Santana Pérez, Orlando Onofre; Maspoch Rulduà, Mª Lluïsa (2013-08)
    Article
    Restricted access - publisher's policy
    An enhanced general analytical equation has been developed in order to evaluate the kinetic parameters of the thermal degradation of poly(lactic acid) (PLA) at various linear heating rates and at constant rate conditions. ...
  • Enhanced general analytical equation for the kinetics of the thermal degradation of poly(lactic acid)/montmorillonite nanocomposites driven by random scission 

    Carrasco Alonso, Félix Ángel; Perez Maqueda, L.A.; Santana Pérez, Orlando Onofre; Maspoch Rulduà, Mª Lluïsa (2014-03)
    Article
    Restricted access - publisher's policy
    An enhanced general analytical equation has been developed in order to evaluate the kinetic parameters of the thermal degradation of nanocomposites, composed of poly(lactic acid) (PLA) and organo-modified montmorillonite ...
  • Enhancement of the thermal resistance of poly(lactic acid) obtained by reactive extrusion by adding nanoclays 

    Carrasco Alonso, Félix Ángel; Maspoch Rulduà, Mª Lluïsa (2016-10-01)
    Article
    Open Access
    In the present work, poly(lactic acid) sheets (with a nominal width of 1 mm) reinforced with organically modified montmorillonite (with a mass content of 2.5%) have been manufactured through a reactive extrusion process. ...
  • Epoxy coupling agents for PLA and PHB copolymer-based cotton fabric bio-composites 

    Battegazzore, Daniele; Frache, Alberto; Abt, Tobias; Maspoch Rulduà, Mª Lluïsa (Elsevier, 2018-09-01)
    Article
    Open Access
    Epoxy coupling agent was deposed on cotton fabric used for the formation of film stacked composites based on poly(lactic acid) (PLA) or a poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHB) matrices. The additive confining ...
  • Espumas ignífugas de poliolefina libres de halógenos 

    Redondo Realinho, Vera Cristina de; Antunes, Marcelo de Sousa Pais; Haurie Ibarra, Laia; Maspoch Rulduà, Mª Lluïsa; Velasco Perero, José Ignacio (2012)
    Conference report
    Open Access
    En 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 ...
  • Essential work of fracture analysis of the tearing of a ductile polymer film 

    Martínez Benasat, Antonio; Segovia, Angélica; Gamez Pérez, José; Maspoch Rulduà, Mª Lluïsa (2010-09)
    Article
    Restricted access - publisher's policy
    The fracture behaviour of a 0.5 mm thick ethylene-propylene block copolymer, previously evaluated using the essential work of fracture method, has been analyzed again in more detail, using different plots, allowing the ...
  • Essential work of fracture of poly(lactic acid) modified by reactive extrusion 

    Santana Pérez, Orlando Onofre; Cailloux, Jonathan; Franco-Urquiza, Edgar; Illescas Fernandez, Silvia; Bou Serra, Jordi; Carrasco Alonso, Félix Ángel; Maspoch Rulduà, Mª Lluïsa (2012)
    Conference report
    Open Access
    En este trabajo se han evluado las variaciones en el comportamiento mecánico y a fractura de láminas de 1 mm de espesor de dos grados de P LA con contenidos diferentes de enantiómero D (2 y 4.5 % mol), procesadas mediante ...
  • Evaluación de las propiedades mecánicas en mezclas de Poliestireno/Polietileno de baja densidad reciclado y tamizado 

    Franco Urquiza, Edgar A.; Maspoch Rulduà, Mª Lluïsa (2017)
    Article
    Open Access
    En el presente trabajo se prepararon mezclas de poliestireno (PS) con residuo tamizado de Polietileno de baja densidad (LDPE) reciclado de cables eléctricos. Las mezclas se pr epararon utilizando ...
  • Fabricación y caracterización de paneles sándwich polipropileno/polipropileno autoreforzado 

    Sánchez Soto, Miguel; Abt, Tobias Martin; Maspoch Rulduà, Mª Lluïsa; Múgica Abarquero, Joseba Iñaki; Aurrekoetxea Narbarte, Jon; Candal Pazos, Maria Virginia; Almonacid, C. (Asociación Española de Materiales Compuestos, 2015)
    Conference report
    Restricted access - publisher's policy
    En este trabajo se han fabricado y estudiado las propiedades resultantes de paneles tipo sándwich constituidos por un núcleo de polipropileno copolímero, -eventualmente espumado-, unido a dos láminas hechas con fibras ...
  • Fractura de láminas extruidas a partir de PET opaco reciclado 

    Santana Pérez, Orlando Onofre; Loaeza, David; Cailloux, Jonathan; Sánchez Soto, Miguel; Maspoch Rulduà, Mª Lluïsa (2018)
    Conference report
    Restricted access - publisher's policy
    El presente trabajo se engloba dentro de las acciones prevista en el proyecto “Revalorización de PET opaco reciclado en materiales innovadores (RevalPET)” financiado por los fondos FEDER a través del programa INTERREG V ...
  • Fractura postcedencia de polímeros 

    Maspoch Rulduà, Mª Lluïsa; Franco Urquiza, Edgar Adrian; Santana Pérez, Orlando Onofre; Gamez Pérez, José; Sánchez Soto, Miguel; Velasco Perero, José Ignacio; Martínez Benasat, Antonio (2011)
    Conference report
    Open Access
  • Fracture behavior of quenched poly(lactic acid) 

    Gamez Pérez, José; Velázquez Infante, Julio César; Franco Urquiza, Edgar Adrian; Pagès Figueras, Pere; Carrasco, F; Santana Pérez, Orlando Onofre; Maspoch Rulduà, Mª Lluïsa (2011-01)
    Article
    Restricted access - publisher's policy
    The effect of a quenching treatment applied on heated cast sheet extruded films of two poly(lactic acid) (PLA) commercial grades, with different optical purities, was studied. The thermal and mechanical properties of the ...
  • Fracture behaviour of de-aged poly(lactic acid) assessed by essential work of fracture and J-Integral methods 

    Santana Pérez, Orlando Onofre; Rodríguez, C.; Belzunce, J.; Gamez Pérez, José; Carrasco Alonso, Félix Ángel; Maspoch Rulduà, Mª Lluïsa (2010-12)
    Article
    Restricted access - publisher's policy
    The applicability of the essential work of fracture (EWF) in SENB geometry as an alternative to the J-integral methodology has been assessed. An amorphous poly(lactic acid) (PLA) with ductile behaviour promoted by a de-ageing ...
  • Fracture behaviour of poly[ethylene–(vinyl alcohol)]/organo-clay composites 

    Maspoch Rulduà, Mª Lluïsa; Franco Urquiza, Edgar Adrian; Gamez Pérez, José; Santana Pérez, Orlando Onofre; Sánchez Soto, Miguel (2009-04-14)
    Article
    Restricted access - publisher's policy
    BACKGROUND: Ethylene–(vinyl alcohol) (EVOH) copolymer/organo-modified montmorillonite (OMMT) composites were investigated. Composites with two different percentages by weight of OMMT were prepared using a melt-extrusion ...
  • Improvement of the thermal stability of branched poly(lactic acid) obtained by reactive extrusion 

    Carrasco Alonso, Félix Ángel; Cailloux, Jonathan; Sanchez Jimenez, P.E.; Maspoch Rulduà, Mª Lluïsa (2014-06-01)
    Article
    Restricted access - publisher's policy
    One-step reactive extrusion-calendering process (REX-calendering) has been used in order to obtain sheets of 1 mm from poly(lactic acid) modified with a styrene-acrylic multifunctional oligomeric agent. In a preliminary ...