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dc.contributor.author
Montoya, Marcos Adrian
dc.contributor.author
Abad, M. J.
dc.contributor.author
Barral, Leonel Maximiliano
dc.contributor.author
Bernal, Celina Raquel
dc.date.available
2017-07-10T21:44:20Z
dc.date.issued
2006-12
dc.identifier.citation
Montoya, Marcos Adrian; Abad, M. J.; Barral, Leonel Maximiliano; Bernal, Celina Raquel; Mechanical and fracture behavior of polypropylene/poly(ethylene-co-vinyl alcohol) blends compatibilized with ionomer Na+; Elsevier; European Polymer Journal; 42; 2; 12-2006; 265-273
dc.identifier.issn
0014-3057
dc.identifier.uri
http://hdl.handle.net/11336/20078
dc.description.abstract
In this work the deformation and fracture behavior of PP/EVOH blends compatibilized with ionomer Na+ at room and low temperature was studied. Uniaxial tensile tests on dumb-bell samples and fracture tests on single-edge notched bending (SENB) specimens were performed for 10 wt.% and 20 wt.% EVOH blends with different ionomer content at 23 °C and −20 °C. The incorporation of EVOH to PP led to less ductile materials in tension as judged by the lower values of the ultimate tensile strain displayed by all PP/EVOH blends in comparison to neat PP. In contrast, the ionomer Na+ addition partially counteracted this effect. The compatibilizing effect of ionomer Na+ was also evident in fracture results since higher values of the fracture parameter were obtained for the ternary blends. SEM observations also confirmed this effect. On the other hand, PP/EVOH blends exhibited different fracture behavior with test temperature. All blends showed “pseudo stable” behavior at room temperature characterized by apparently stable crack growth that could not be externally controlled. On the contrary, blends behaved as semi-brittle at −20 °C with some amount of stable crack growth preceding unstable brittle fracture. Finally, irrespectively of the temperature or the ionomer content all PP/EVOH blends exhibited more ductile fracture behavior with a higher tendency to stable crack propagation than neat polypropylene.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Mechanical and fracture behavior of polypropylene/poly(ethylene-co-vinyl alcohol) blends compatibilized with ionomer Na+
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-10T14:53:10Z
dc.journal.volume
42
dc.journal.number
2
dc.journal.pagination
265-273
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Hoboken
dc.description.fil
Fil: Montoya, Marcos Adrian. Universidad da Coruña; España
dc.description.fil
Fil: Abad, M. J.. Universidad da Coruña; España
dc.description.fil
Fil: Barral, Leonel Maximiliano. Universidad da Coruña; España
dc.description.fil
Fil: Bernal, Celina Raquel. Universidad da Coruña; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
dc.journal.title
European Polymer Journal
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0014305705003277
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.eurpolymj.2005.08.003


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