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PLA-PHB/cellulose based films: Mechanical, barrier and disintegration properties

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PLA-PHB/cellulose based films: Mechanical, barrier and disintegration properties

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dc.contributor.author Arrieta, Marina Patricia es_ES
dc.contributor.author Fortunati, E. es_ES
dc.contributor.author Dominici, F. es_ES
dc.contributor.author Rayón Encinas, Emilio es_ES
dc.contributor.author López Martínez, Juan es_ES
dc.contributor.author Kenny, J. M. es_ES
dc.date.accessioned 2015-12-10T12:25:33Z
dc.date.available 2015-12-10T12:25:33Z
dc.date.issued 2014-09
dc.identifier.issn 0141-3910
dc.identifier.uri http://hdl.handle.net/10251/58705
dc.description.abstract Nanocomposite films based on poly(lactic acid)-poly(hydroxybutyrate) (PLA-PHB) blends and synthesized cellulose nanocrystals (CNC) or surfactant modified cellulose nanocrystals (CNCs), as bio-based reinforcement, were prepared by melt extrusion followed by film forming. The obtained nanocomposites are intended for short-term food packaging. Thus, the mechanical, optical, barrier and wettability properties were studied. Functionalized CNCs contribute to enhance the interfacial adhesion between PLA and PHB, leading to improved mechanical stiffness and increased film stretchability. The synergic effects of the PHB and CNCs on the PLA barrier properties were confirmed by increases in oxygen barrier properties and reductions in surface wettability of the nanocomposites. In addition, the measurements of the viscosity molecular weight for ternary systems showed practically no degradation of PLA and smaller degradation of PHB during processing due to nanocrystal presence. The disintegration process in composting conditions of PLA was delayed by the addition of PHB, while CNC speeded it up. PLA-PHB-CNCs formulations showed enhanced mechanical performance, improved water resistance, reduced oxygen and UV-light transmission, as well as appropriate disintegration in compost suggesting possible applications as packaging materials. (C) 2014 Elsevier Ltd. All rights reserved. es_ES
dc.description.sponsorship This research was supported by the Ministry of Science and Innovation of Spain (MAT2011-28468-C02-01 and MAT2011-28468-C02-02). M.P. Arrieta thanks Generalitat Valenciana (Spain) for Santiago Grisolia Fellowship (GRISOLIA/2011/007) and Universitat Politecnica de Valencia for the Development Support Programme PAID-00-12 (SP20120120). The Authors acknowledge Gesenu S.p.a. for compost supply. Authors gratefully thank Prof. Alfonso Jimenez (University of Alicante, Spain) and Prof. Maria Dolores Salvador Moya (Universitat Politecnica de Valencia) for their assistance with OTR measurements and optical microscope-EDF measurements, respectively. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation Ministry of Science and Innovation of Spain [MAT2011-28468-C02-01, MAT2011-28468-C02-02] es_ES
dc.relation Generalitat Valenciana (Spain) [GRISOLIA/2011/007] es_ES
dc.relation Universitat Politècnica de València [PAID-00-12 (SP20120120)] es_ES
dc.relation.ispartof Polymer Degradation and Stability es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Poly(lactic acid) es_ES
dc.subject Poly(hydroxybutyrate) es_ES
dc.subject Modified cellulose nanocrystals es_ES
dc.subject Nanocomposites es_ES
dc.subject Biodegradation es_ES
dc.subject Barrier properties es_ES
dc.subject.classification CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA es_ES
dc.title PLA-PHB/cellulose based films: Mechanical, barrier and disintegration properties es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.polymdegradstab.2014.05.010
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Tecnología de Materiales - Institut de Tecnologia de Materials es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials es_ES
dc.description.bibliographicCitation Arrieta, MP.; Fortunati, E.; Dominici, F.; Rayón Encinas, E.; López Martínez, J.; Kenny, JM. (2014). PLA-PHB/cellulose based films: Mechanical, barrier and disintegration properties. Polymer Degradation and Stability. 107:139-149. doi:10.1016/j.polymdegradstab.2014.05.010 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.polymdegradstab.2014.05.010 es_ES
dc.description.upvformatpinicio 139 es_ES
dc.description.upvformatpfin 149 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 107 es_ES
dc.relation.senia 268196 es_ES
dc.identifier.eissn 1873-2321


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