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dc.contributor.author
Costantino, María Alejandra
dc.contributor.author
Pettarin, Valeria
dc.contributor.author
Viana, Julio
dc.contributor.author
Pontes, Antonio
dc.contributor.author
Pousada, Antonio
dc.contributor.author
Frontini, Patricia Maria
dc.date.available
2016-12-26T16:29:37Z
dc.date.issued
2013-06-06
dc.identifier.citation
Costantino, María Alejandra; Pettarin, Valeria; Viana, Julio; Pontes, Antonio; Pousada, Antonio; et al.; Morphology-performance relationship of polypropylene-nanoclay composites processed by shear controlled injection moulding; Wiley; Polymer International; 62; 11; 6-6-2013; 1589-1599
dc.identifier.issn
0959-8103
dc.identifier.uri
http://hdl.handle.net/11336/10102
dc.description.abstract
A nanoclay based masterbatch was mixed with polypropylene and direct injection moulded by conventional (CIM) and shear controlled orientation (SCORIM) injection moulding techniques. The aim was to correlate the morphologies induced by SCORIM and CIM processing with the thermal, mechanical and fracture performance of PP/nanoclay thick mouldings. In SCORIM, two extreme shear levels were applied by changing processing conditions. A complete characterization is reported, and statistical analysis is carried out to obtain a relationship between mouldings? properties. Nanoclay acted as polymer morphology directors, and in combination with SCORIM it induced the formation of γ-polymorph of PP. The nanoclay has a strong positive effect on thermal degradation of PP under oxidative atmosphere, due to the barrier effect of clay and the physico-chemical adsorption of the volatile degradation products on the silicates, but there were no differences between processing techniques. SCORIM samples of neat PP showed non linear brittle behavior, while nanocomposites exhibited quasi-stable behavior induced by a large deformation capability of the skin. Despite, fracture initiates at practically the same loading levels, the overall propagation energy values varied with processing conditions. Statistical analysis indicates that the decrement of the core region achieved by the SCORIM processing, the differences between skin and core and the PP γ-phase induced by the presence of nanoclay, are responsible for the toughening of SCORIM PP/nanoclay mouldings.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Polypropylene
dc.subject
Nanoclay
dc.subject
Non-Conventional Injection Moulding
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
Ingeniería de los Materiales
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INGENIERÍAS Y TECNOLOGÍAS
dc.subject.classification
Físico-Química, Ciencia de los Polímeros, Electroquímica
dc.subject.classification
Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Morphology-performance relationship of polypropylene-nanoclay composites processed by shear controlled injection moulding
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-10-07T20:16:56Z
dc.journal.volume
62
dc.journal.number
11
dc.journal.pagination
1589-1599
dc.journal.pais
Reino Unido
dc.journal.ciudad
Oxford
dc.description.fil
Fil: Costantino, María Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
dc.description.fil
Fil: Pettarin, Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
dc.description.fil
Fil: Viana, Julio. Universidade Do Minho; Portugal
dc.description.fil
Fil: Pontes, Antonio. Universidade Do Minho; Portugal
dc.description.fil
Fil: Pousada, Antonio. Universidade Do Minho; Portugal
dc.description.fil
Fil: Frontini, Patricia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
dc.journal.title
Polymer International
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/pi.4543/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/pi.4543


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