Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Characterization of a Multilayer Film Comprising Polybutylene Adipate Terephthalate and Cellulose Nanocrystals with High Barrier and Compostable Properties

Beatriz Melendez-Rodriguez
ORCID logo ,
Cristina Prieto
ORCID logo ,
Maria Pardo-Figuerez
ORCID logo ,
Inmaculada Angulo
,
Ana I. Bourbon
ORCID logo ,
Isabel R. Amado
ORCID logo ,
Miguel A. Cerqueira
,
Lorenzo M. Pastrana
ORCID logo ,
Loic Hugues Gilles Hilliou
ORCID logo ,
António A. Vicente
ORCID logo ,
Luis Cabedo
ORCID logo ,
Jose M. Lagaron
* ORCID logo
Version 1 : Received: 6 May 2024 / Approved: 7 May 2024 / Online: 7 May 2024 (10:48:56 CEST)

How to cite: Melendez-Rodriguez, B.; Prieto, C.; Pardo-Figuerez, M.; Angulo, I.; Bourbon, A. I.; Amado, I. R.; Cerqueira, M. A.; Pastrana, L. M.; Hilliou, L. H. G.; Vicente, A. A.; Cabedo, L.; Lagaron, J. M. Characterization of a Multilayer Film Comprising Polybutylene Adipate Terephthalate and Cellulose Nanocrystals with High Barrier and Compostable Properties. Preprints 2024, 2024050373. https://doi.org/10.20944/preprints202405.0373.v1 Melendez-Rodriguez, B.; Prieto, C.; Pardo-Figuerez, M.; Angulo, I.; Bourbon, A. I.; Amado, I. R.; Cerqueira, M. A.; Pastrana, L. M.; Hilliou, L. H. G.; Vicente, A. A.; Cabedo, L.; Lagaron, J. M. Characterization of a Multilayer Film Comprising Polybutylene Adipate Terephthalate and Cellulose Nanocrystals with High Barrier and Compostable Properties. Preprints 2024, 2024050373. https://doi.org/10.20944/preprints202405.0373.v1

Abstract

In the present study, a multilayer high barrier thin blown film based on a polybutylene adipate terephthalate (PBAT) blend with polyhydroxyalkanoate (PHA), and composed of four layers, including a cellulose nanocrystals (CNC) barrier layer and an electrospun poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) hot-tack layer, was characterized in terms of surface roughness, surface tension, migration, mechanical and peel performance, barrier properties and disintegration rate. The results showed a material with a smooth surface. The overall migration test showed that the material was suitable for its use as a food contact layer. The addition of the CNC interlayer had a significant effect on the mechanical properties of the system, drastically reducing the elongation at break and, thus, the flexibility of the material. However, the material retained its elastic modulus and tensile strength. The CNC coating had a negative impact on the peeling strength, weakening the inherently strong interlayer adhesivity of the electrospun PHBV fibers. The multilayer had a good barrier to water vapor, and especially to oxygen, with its permeance reduced by up to a 90 % when the CNC layer was present. Finally, the monolayer blend film disintegrated in a period of less than 55 days in a laboratory-scale composting experiment, while the multilayer system disintegrated in 60 days. Overall, the multilayer system formed a fully compostable structure with great potential for use in food packaging applications.

Keywords

biopolyesters; nanocellulose; multilayers; compostable; packaging

Subject

Chemistry and Materials Science, Materials Science and Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Download PDF

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0
Get PDF Cite Share 0
Bookmark BibSonomy Mendeley Reddit Delicious
×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.