The thermo-mechanical recyclability potential of biodegradable biopolyesters: Perspectives and limits for food packaging application - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Polymer Testing Year : 2022

The thermo-mechanical recyclability potential of biodegradable biopolyesters: Perspectives and limits for food packaging application

Abstract

Up to now, recycling has been opposed to biodegradability, although these two end-of-life options are complementary. If combined in an integrated system, recycling creates an after-use economy, while biodegradability eradicates definitely the issues of environmental spreading of the persistent plastic wastes. This paper reviews the current state on recyclability of some promising biodegradable polyesters, polylactide acid (PLA), polyhydroxyalkanoates (PHAs), bio-polybutylene succinate (PBS) and polybutylene adipate terephthalate (PBAT), with emphasis on mechanical recycling. The effect of the mechanical reprocessing (multiple extrusion or injection-molding) on the chemical structure and thermomechanical properties of the polymers is reported. In addition, the application of upgrading strategies such as blends and/or composites to improve polyesters recyclability are considered. A further decontamination step is studied in order to achieve food contact aptitude in mechanical recycling for food packaging application. Finally, the challenges that should be faced in the future, to promote the recyclability of biodegradable polyesters are addressed. ☆ We confirm that the manuscript has been read and approved by all named authors and that there are no other persons who satisfied the criteria for authorship but are not listed. We further confirm that the order of authors listed in the manuscript has been approved by all of us.
Fichier principal
Vignette du fichier
Dedieu-PT-2022-CC-BY.pdf (3.39 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-03692140 , version 1 (09-06-2022)

Licence

Attribution

Identifiers

Cite

Isabelle Dedieu, Stéphane Peyron, Nathalie Gontard, Chahinaz Aouf. The thermo-mechanical recyclability potential of biodegradable biopolyesters: Perspectives and limits for food packaging application. Polymer Testing, 2022, 111, pp.107620. ⟨10.1016/j.polymertesting.2022.107620⟩. ⟨hal-03692140⟩
48 View
40 Download

Altmetric

Share

Gmail Facebook X LinkedIn More