Design and characterization of a new food packaging material by recycling blends virgin and recovered polyethylene terephthalate
Abstract
This research is dealing with plastic wastes recycling environmental problem. The objective is the polyethylene terephthalate (PET) valorization from postconsumer bottles by the optimization of the most suitable virgin and recycled PET mixture to be used as food contact packaging. Mixtures of these materials were elaborated by extrusion and injection molding using different recycled PET rates. Rheological, mechanical, and thermal analyses were achieved, and then migration tests were investigated to assess the recycled PET compatibility for food contact packaging. The rheological analysis showed a PET degradation after the mechanical recycling, with PET viscosity decrease, compared to that of the virgin material. The blends properties showed that at low deformation, mechanical properties were significantly improved by adding recycled PET. Consequently, the new material was more rigid with a crystallinity degree improvement, increasing the materials resistance that enhanced their tenacity. However, at great deformations, the PET mixed materials were deteriorated through drastic ductility losses. The mixture 30/70 recycled/virgin PET seems to be the best blend. For all the studied mixtures, the overall migrations conformed the European Standard, allowing the use of the recycled PET for packaging as an issue in circular economy principles for a sustainable development. POLYM. ENG. SCI., 60: 250–256, 2019. © 2019 Society of Plastics Engineers
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A mixture ratio of 70/30 virgin/recycled PET showed good rheological, mechanical and thermal properties in extrusion and injection moulding.
“Masmoudi et al. (2020) investigated the mixture ratio of virgin and recycled PET, and the material in a ratio of 70/30 virgin/recycled showed good rheological, mechanical and thermal properties in extrusion and injection moulding.”
From Packaging design for the circular economy: A systematic review (2022) · cites this paper as Masmoudi et al. (2020)
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- Authors
- Masmoudi, F., Alix, S., Buet, S., Mehri, A., Bessadok, A., Jaziri, M., & Ammar, E.
- Affiliations
- University of Sfax (TN)
- Université de Reims Champagne-Ardenne (FR)
- Packaging Technical Centre (TN)
- University of Gafsa (TN)
- Corresponding author
- Ammar, Emna
- Venue
- Polymer Engineering & Science
- Publisher
- Wiley
- Published
- 2019-11-08
- Volume
- 60
- Issue
- 2
- Pages
- 250-256
- ISSN
- 0032-3888 (ISSN-L)
- 1548-2634
- OpenAlex
- W2987558673
- Cited by
- 30
- References
- 16
- Citations by year
- 2026: 3 · 2025: 6 · 2024: 1 · 2023: 4 · 2022: 8 · 2021: 4 · 2020: 4
- FWCI
- 1.71
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Polymer Engineering and Science (publishedVersion)
- HAL (submittedVersion)
- Funders
- MOBIDOC-doc
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Physical Sciences › Environmental Science › Waste Management and Disposal › Waste Management and Recycling
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Keywords
- polyethylene terephthalate, recycled PET, plastic recycling, migration, mechanical properties, crystallinity, rheology, thermal properties, circular economy, injection molding, extrusion
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