NAGIOS: RODERIC FUNCIONANDO

The role of crystalline, mobile amorphous and rigid amorphous fractions in the performance of recycled poly (ethylene terephthalate) (PET)

Repositori DSpace/Manakin

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

The role of crystalline, mobile amorphous and rigid amorphous fractions in the performance of recycled poly (ethylene terephthalate) (PET)

dc.contributor.author	Badia Valiente, José David
dc.contributor.author	Strömberg, E.
dc.contributor.author	Karlsson, S.
dc.contributor.author	Ribes Greus, A.
dc.date.accessioned	2019-10-22T14:27:41Z
dc.date.available	2019-10-22T14:27:41Z
dc.date.issued	2012
dc.identifier.citation	Badia Valiente, José David Strömberg, E. Karlsson, S. Ribes Greus, A. 2011 The role of crystalline, mobile amorphous and rigid amorphous fractions in the performance of recycled poly (ethylene terephthalate) (PET) Polymer Degradation and Stability 97 1 98 107
dc.identifier.uri	https://hdl.handle.net/10550/71792
dc.description.abstract	The action of thermo-mechanical degradation induced by mechanical recycling of poly(ethylene terephthalate) was simulated by successive injection moulding cycles. Degradation reactions provoked chain scissions and a reduction in molar mass mainly driven by the reduction of diethyleneglycol to ethylene glycol units in the flexible domain of the PET backbone, and the formation of -OH terminated species with shorter chain length. The consequent microstructural changes were quantified taking into account a three-fraction model involving crystalline, mobile amorphous (MAF) and rigid amorphous fractions (RAF). A remarkable increase of RAF, to a detriment of MAF was observed, while the percentage of crystalline fraction remained nearly constant. A deeper analysis of the melting behaviour, the segmental dynamics around the glass-rubber relaxation, and the macroscopic mechanical performance, showed the role of each fraction leading to a loss of thermal, viscoelastic and mechanical features, particularly remarkable after the first processing cycle.
dc.language.iso	eng
dc.relation.ispartof	Polymer Degradation and Stability, 2011, vol. 97, num. 1, p. 98-107
dc.subject	Termoplàstics
dc.subject	Solucions polimèriques
dc.title	The role of crystalline, mobile amorphous and rigid amorphous fractions in the performance of recycled poly (ethylene terephthalate) (PET)
dc.type	journal article	es_ES
dc.date.updated	2019-10-22T14:27:41Z
dc.identifier.doi	10.1016/j.polymdegradstab.2011.10.008
dc.identifier.idgrec	134913
dc.rights.accessRights	open access	es_ES