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Influence of femtolaser notch sharpening technique in the determination of essential work of fracture (EWF) parameters
(Elsevier, 2009-06)
The fracture behaviour of a 0.5 mm thick ethylene-propylene block copolymer is analyzed using the essential work of fracture method, using DENT-type specimens. The influence of three experimental parameters in the technique ...
Toughness Enhancement of Commercial Poly (Hydroxybutyrate-co-Valerate) (PHBV) by Blending with a Thermoplastic Polyurethane (TPU)
(World Scientific Publishing Co Pte Ltd, 2016)
Poly(hydroxyl butyrate-co-valerate) (PHBV) is a biopolymer synthesized by microorganisms that is fully biodegradable with improved thermal and tensile properties with respect to some commodity plastics. However, it presents ...
Sheets of branched poly(lactic acid) obtained by one step reactive extrusion calendering process: Melt rheology analysis
(Budapest University of Technology and Economics Department of Polymer Engineering, 2013)
One-step reactive extrusion-calendering process (REX-Calendering) was used in order to obtain sheets of 1mm from two PD,L-LA extrusion grades modified with a styrene-acrylic multifunctional oligomeric agent. In a preliminary ...
Acquisition of transversal skills through PBL: a study of the perceptions of the students and teachers in materials science courses in engineering
(Universitat Politècnica de València, 2015)
The main goal of this work is describing the experience in using Project Based Learning (PBL) methodology in Materials Science courses in several Engineering degrees. The courses were taught simultaneously in four different ...
Effect of the Strain Rate and Drawing Temperature on the Mechanical Behavior of EVOH and EVOH Composites
(Wiley, 2013-03)
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 ...
Fracture behaviour of poly[ethylene–(vinyl alcohol)]/organo-clay composites
(WileySociety of Chemical Industry, 2009)
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 ...
Effect of the recycling and annealing on the mechanical and fracture properties of poly(lactic acid)
(Springer US, 2010)
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 as to understand the effects of the annealing on the fracture behavior ...
The Essential Work of Fracture (EWF) method – Analyzing the Post-Yielding Fracture Mechanics of polymers
(Elsevier, 2009-12)
The Post-Yielding Fracture Mechanics describe the fracture behaviour of pre-cracked films and thin sheets that show yielding phenomenon at the crack tip during fracture. The Essential Work of Fracture method (EWF) has been ...
Effect of the unidirectional drawing on the thermal and mechanical properties of PLA films with different L-isomer content
(Wiley Periodicals, Inc., 2013-02)
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 ...
Estudio de la relación estructura-propiedades-procesamiento de nanocompuestos basados en poli (ácido láctico) (PLA) y o-MMT
(Universidad de Oriente, 2014)
En este trabajo se investiga la influencia del procesado y del contenido de nanoarcilla en las
propiedades mecánicas de láminas obtenidas por extrusión-calandra a partir de un grado comercial de
PLA y una nanoarcilla ...