High-Oxygen-Barrier Multilayer Films Based on Polyhydroxyalkanoates and Cellulose Nanocrystals
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Other documents of the author: Melendez-Rodriguez, Beatriz; Torres-Giner, Sergio; ANGULO, INMACULADA; Pardo-Figuerez, Maria; hilliou, loic; Escuin, Jose Manuel; Cabedo, Luis; Nevo, Yuval; Prieto, Cristina; LAGARON, Jose
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7034
comunitat-uji-handle3:10234/8619
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Title
High-Oxygen-Barrier Multilayer Films Based on Polyhydroxyalkanoates and Cellulose NanocrystalsAuthor (s)
Date
2021-05-30Publisher
MDPIISSN
2079-4991Bibliographic citation
Melendez-Rodriguez, B.; Torres-Giner, S.; Angulo, I.; Pardo-Figuerez,M.; Hilliou, L.; Escuin, J.M.; Cabedo, L.; Nevo, Y.; Prieto, C.; Lagaron, J.M. High-Oxygen-Barrier Multilayer Films Based on Polyhydroxyalkanoates and Cellulose Nanocrystals. Nanomaterials 2021, 11, 1443. https://doi.org/10.3390/ nano11061443Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
This study reports on the development and characterization of organic recyclable high-oxygen-barrier multilayer films based on different commercial polyhydroxyalkanoate (PHA) materials, including a blend with commercial ... [+]
This study reports on the development and characterization of organic recyclable high-oxygen-barrier multilayer films based on different commercial polyhydroxyalkanoate (PHA) materials, including a blend with commercial poly(butylene adipate-co-terephthalate) (PBAT), which contained an inner layer of cellulose nanocrystals (CNCs) and an electrospun hot-tack adhesive layer of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) derived from cheese whey (CW). As a result, the full multilayer structures were made from bio-based and/or compostable materials. A characterization of the produced films was carried out in terms of morphological, optical, mechanical, and barrier properties with respect to water vapor, limonene, and oxygen. Results indicate that the multilayer films exhibited a good interlayer adhesion and contact transparency. The stiffness of the multilayers was generally improved upon incorporation of the CNC interlayer, whereas the enhanced elasticity of the blend was reduced to some extent in the multilayer with CNCs, but this was still much higher than for the neat PHAs. In terms of barrier properties, it was found that 1 µm of the CNC interlayer was able to reduce the oxygen permeance between 71% and 86%, while retaining the moisture and aroma barrier of the control materials. [-]
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Nanomaterials 2021, 11Funder Name
Ministerio de Ciencia e Innovación (MICI) | H2020 EU project YPACK
Project code
RTI2018-097249-B-C21 | 773872
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info:eu-repo/semantics/openAccess
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