Characterization and disintegrability under composting conditions of PLA-based nanocomposite films with thymol and silver nanoparticles

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Title: Characterization and disintegrability under composting conditions of PLA-based nanocomposite films with thymol and silver nanoparticles
Authors: Ramos, Marina | Fortunati, Elena | Peltzer, Mercedes Ana | Jiménez, Alfonso | Kenny, José María | Garrigós, María del Carmen
Research Group/s: Análisis de Polímeros y Nanomateriales
Center, Department or Service: Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología
Keywords: Poly(lactic acid) | Thymol | Silver nanoparticles | Active packaging | Disintegration | Characterization
Knowledge Area: Química Analítica
Issue Date: Oct-2016
Publisher: Elsevier
Citation: Polymer Degradation and Stability. 2016, 132: 2-10. doi:10.1016/j.polymdegradstab.2016.05.015
Abstract: Active nanocomposite films based on poly(lactic acid) (PLA), thymol and silver nanoparticles (Ag-NPs) were prepared and characterized. PLA films containing 6 and 8 wt% thymol and 1 wt% Ag-NPs were processed by extrusion to obtain binary and ternary formulations. The addition of thymol and Ag-NPs modified the PLA thermal, optical and barrier properties; in particular water vapour permeability (WVP), maintaining oxygen transmission rate (OTR) values unchanged. Homogeneous surfaces in all films were obtained as proved by FESEM micrographs. The presence of the active additives enhanced the disintegration rate of PLA under composting conditions, which was completed in 14 days. Results suggest that these nanocomposite films could be considered promising degradable active packaging materials with low environmental impact.
Sponsor: Authors would like to thank Spanish Ministry of Economy and Competitiveness for financial support (MAT-2015-59242-C2-2-R). Marina Ramos would like to thank University of Alicante (Spain) for UAFPU2011-48539721S pre-doctoral research grant.
ISSN: 0141-3910 (Print) | 1873-2321 (Online)
DOI: 10.1016/j.polymdegradstab.2016.05.015
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2016 Elsevier Ltd.
Peer Review: si
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Appears in Collections:INV - NANOBIOPOL - Artículos de Revistas

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