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Ara es mostren els items 21-40 de 83

    • 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, M. Lluïsa (2016)
      Article
      Accés obert
      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, M. Lluïsa; Franco Urquiza, Edgar Adrian (2010-12)
      Article
      Accés restringit per política de l'editorial
      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, M. Lluïsa (2012-02-27)
      Article
      Accés restringit per política de l'editorial
      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 thermoforming process variables on the sheet friction coefficient 

      Morales, Rosa Amalia; Candal Pazos, Maria Virginia; Santana Pérez, Orlando Onofre; Gordillo Aubert, Antonio; Salazar, Rubén (2014-01)
      Article
      Accés obert
      The objective of this work was to obtain, through a simple experimental assembly, the real influence of the friction and process conditions in the assisted thermoforming process. The use of simulation tools to optimize ...

    • 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, M. Lluïsa (2013-02-15)
      Article
      Accés restringit per política de l'editorial
      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 Martin; García Masabet, Violeta del Valle; Santana Pérez, Orlando Onofre; Sánchez Soto, Miguel; Carrasco Alonso, Félix Ángel; Maspoch Rulduà, M. Lluïsa (2018-01-30)
      Article
      Accés obert
      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, M. Lluïsa (2013-08)
      Article
      Accés restringit per política de l'editorial
      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, M. Lluïsa (2014-03)
      Article
      Accés restringit per política de l'editorial
      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 ...

    • 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, M. Lluïsa (2012)
      Text en actes de congrés
      Accés obert
      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 ...

    • ESTRUCTURA I CARACTERITZACIÓ DELS MATERIALS (3r quadrimestre) 

      Santana Pérez, Orlando Onofre; Manero Planella, José María; Pegueroles Neyra, Marta (Universitat Politècnica de Catalunya, 2014-06-30)
      Examen
      Accés restringit a la comunitat UPC

    • Evaluation of the mechanical properties of Poly(Lactic) Acid/ABS Bio-Blend foams 

      Sánchez Soto, Miguel; Kamrani Moghadam, Mohammad Reza; Maspoch Rulduà, M. Lluïsa; Santana Pérez, Orlando Onofre; Cailloux, Jonathan (Springer, 2020-05-30)
      Capítol de llibre
      Accés restringit per política de l'editorial
      Foaming is a powerful method that allows lightening of products and reducing the amount of material used. Poly(lactic) acid (PLA) is considered a promising thermoplastic for the replacement of traditional non-biodegradable ...

    • Extruded-calendered sheets of fully recycled pp/opaque pet blends: Mechanical and fracture behaviour 

      Loaeza Becerril, Alfonso David; Cailloux, Jonathan; Santana Pérez, Orlando Onofre; Sánchez Soto, Miguel; Maspoch Rulduà, M. Lluïsa (Multidisciplinary Digital Publishing Institute (MDPI), 2021-07-02)
      Article
      Accés obert
      This work presents the experimental results of the mechanical and fracture behaviour of three polymeric blends prepared from two recycled plastics, namely polypropylene and opaque poly (ethylene terephthalate), where the ...

    • Fractura de láminas extruidas a partir de PET opaco reciclado 

      Santana Pérez, Orlando Onofre; Loaeza Becerril, Alfonso David; Cailloux, Jonathan; Sánchez Soto, Miguel; Maspoch Rulduà, M. Lluïsa (2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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 de mezclas de policarbonato con acrilonitrilo-butadieno-estireno 

      Santana Pérez, Orlando Onofre (Universitat Politècnica de Catalunya, 1997-05-22)
      Tesi
      Accés obert

    • Fractura postcedencia de polímeros 

      Maspoch Rulduà, M. Lluïsa; Franco Urquiza, Edgar Adrian; Santana Pérez, Orlando Onofre; Gamez Pérez, José; Sánchez Soto, Miguel; Velasco Perero, José Ignacio; Martínez Benasat, Antonio (2011)
      Text en actes de congrés
      Accés obert

    • 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, M. Lluïsa (2011-01)
      Article
      Accés restringit per política de l'editorial
      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, M. Lluïsa (2010-12)
      Article
      Accés restringit per política de l'editorial
      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, M. Lluïsa; Franco Urquiza, Edgar Adrian; Gamez Pérez, José; Santana Pérez, Orlando Onofre; Sánchez Soto, Miguel (2009-04-14)
      Article
      Accés restringit per política de l'editorial
      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 ...

    • Halogen-free flame retardant polyolefin foams 

      Redondo Realinho, Vera Cristina de; Antunes, Marcelo de Sousa Pais; Santana Pérez, Orlando Onofre; Velasco Perero, José Ignacio (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The present work deals with the preparation and characterizacion of an improved fire-resistant ethylene-acrylate foamed material containing calcium carbonate and a silicon elastomer. This grade, usually employed on the ...

    • Impact behavior of PLA/PCL bioblends 

      León Albiter, Noel; Abt, Tobias Martin; Hortos Llobera, Martí; Espino, Sebastian; Santana Pérez, Orlando Onofre; Maspoch Rulduà, M. Lluïsa (2020)
      Text en actes de congrés
      Accés obert
      The effect of adding polycaprolactone (PCL) on the impact behavior of poly(lactic acid) (PLA) has been evaluated. Bioblends (with and without compatibilizer) were prepared in a pilot plant (twin screw extrusion, 5kg/h) ...