000151979 001__ 151979
000151979 005__ 20250321155444.0
000151979 0247_ $$2doi$$a10.3390/polym13203531
000151979 0248_ $$2sideral$$a126527
000151979 037__ $$aART-2021-126527
000151979 041__ $$aeng
000151979 100__ $$aCandal, M.V.
000151979 245__ $$aStructure and properties of reactively extruded opaque post-consumer recycled PET
000151979 260__ $$c2021
000151979 5060_ $$aAccess copy available to the general public$$fUnrestricted
000151979 5203_ $$aThe recyclability of opaque PET, which contains TiO2 nanoparticles, has not been as well-studied as that of transparent PET. The objective of this work is to recycle post-consumer opaque PET through reactive extrusion with Joncryl. The effect of the reactive extrusion process on the molecular structure and on the thermal/mechanical/rheological properties of recycling post-consumer opaque PET (r-PET) has been analyzed. A 1% w/w Joncryl addition caused a moderate increase in the molecular weight. A moderate increase in chain length could not explain a decrease in the overall crystallization rate. This result is probably due to the presence of branches interrupting the crystallizable sequences in reactive extruded r-PET (REX-r-PET). A rheological investigation performed by SAOS/LAOS/elongational studies detected important structural modifications in REX-r-PET with respect to linear r-PET or a reference virgin PET. REX-r-PET is characterized by a slow relaxation process with enlarged elastic behaviors that are characteristic of a long-chain branched material. The mechanical properties of REX-r-PET increased because of the addition of the chain extender without a significant loss of elongation at the break. The reactive extrusion process is a suitable way to recycle opaque PET into a material with enhanced rheological properties (thanks to the production of a chain extension and long-chain branches) with mechanical properties that are comparable to those of a typical virgin PET sample.
000151979 536__ $$9info:eu-repo/grantAgreement/EUR/INTERREG POCTEFA-RevalPET'UP-EFA329/19
000151979 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000151979 590__ $$a4.967$$b2021
000151979 591__ $$aPOLYMER SCIENCE$$b16 / 90 = 0.178$$c2021$$dQ1$$eT1
000151979 592__ $$a0.726$$b2021
000151979 593__ $$aPolymers and Plastics$$c2021$$dQ1
000151979 593__ $$aChemistry (miscellaneous)$$c2021$$dQ1
000151979 594__ $$a5.7$$b2021
000151979 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000151979 700__ $$aSafari, M.
000151979 700__ $$aFernández, M.
000151979 700__ $$aOtaegi, I.
000151979 700__ $$aMúgica, A.
000151979 700__ $$aZubitur, M.
000151979 700__ $$aGerrica-Echevarria, G.
000151979 700__ $$0(orcid)0000-0002-6873-5244$$aSebastián, V.$$uUniversidad de Zaragoza
000151979 700__ $$0(orcid)0000-0002-2966-9088$$aIrusta, S.$$uUniversidad de Zaragoza
000151979 700__ $$aLoaeza, D.
000151979 700__ $$aMaspoch, M.L.
000151979 700__ $$aSantana, O.O.
000151979 700__ $$aMüller, A.J.
000151979 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000151979 7102_ $$15005$$2790$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Tecnologi. Medio Ambiente
000151979 773__ $$g13, 20 (2021), 3531 [30 pp.]$$pPolymers (Basel)$$tPolymers$$x2073-4360
000151979 8564_ $$s8326749$$uhttps://zaguan.unizar.es/record/151979/files/texto_completo.pdf$$yVersión publicada
000151979 8564_ $$s2797843$$uhttps://zaguan.unizar.es/record/151979/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000151979 909CO $$ooai:zaguan.unizar.es:151979$$particulos$$pdriver
000151979 951__ $$a2025-03-21-14:41:09
000151979 980__ $$aARTICLE