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Several commercial polyolefin-based flexible foams produced by extrusion foaming were characterized in terms of their cellular morphology and fracture behaviour using the concept of the Essential Work of Fracture (EWF), focusing on the influence of foam's chemical nature, expansion ratio and cellular structure on the values of the fracture parameters. Correction procedures were proposed in order to...
The essential work of fracture (EWF) concept was successfully applied to the fracture toughness characterization of ductile glass microsphere-filled polypropylene (PP)-matrix composites. Injection-moulded PP and PP/poly(ethylene terephthalate-co-isophthalate) (PET) blend-matrix composites filled with both untreated and silane-treated glass beads (50wt%) were studied to ascertain the influence of the...
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