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The role of crystalline, mobile amorphous and rigid amorphous fractions in the performance of recycled poly (ethylene terephthalate) (PET)
Open accessAbstract
Abstract The action of thermo-mechanical degradation induced by mechanical recycling of poly(ethylene terephthalate) was simulated by successive injection moulding cycles. Degradation reactions provoked chain scissions and a reduction in molar mass mainly driven by the reduction of diethyleneglycol to ethylene glycol units in the flexible domain of the PET backbone, and the formation of –OH terminated species with shorter chain length. The consequent microstructural changes were quantified taking into account a three-fraction model involving crystalline, mobile amorphous (MAF) and rigid amorphous fractions (RAF). A remarkable increase of RAF, to a detriment of MAF was observed, while the percentage of crystalline fraction remained nearly constant. A deeper analysis of the melting behaviour, the segmental dynamics around the glass-rubber relaxation, and the macroscopic mechanical performance, showed the role of each fraction leading to a loss of thermal, viscoelastic and mechanical features, particularly remarkable after the first processing cycle.
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Cites
An Algorithm for Least-Squares Estimation of Nonlinear Parameters
Marquardt, D. W. (1963) · Journal of the Society for Industrial and Applied Mathematics · doi:10.1137/0111030 · Cited by 30,728
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Introduction to Physical Polymer Science
Sperling, L. H. (2005) · doi:10.1002/0471757128 · Cited by 2,917
Torres, N., Robin, J. J., & Boutevin, B. (2000) · European Polymer Journal · doi:10.1016/s0014-3057(99)00301-8 · Cited by 248
Cited by
Mechanical Recycling of Packaging Plastics: A Review
Schyns, Z. O. G., & Shaver, M. P. (2021) · Macromolecular Rapid Communications · doi:10.1002/marc.202000415 · Cited by 1,643
Use of different forms of waste plastic in concrete – a review
Sharma, R., & Bansal, P. P. (2016) · Journal of Cleaner Production · doi:10.1016/j.jclepro.2015.08.042 · Cited by 419
Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods
Geyer, B., Lorenz, G., & Kandelbauer, A. (2016) · Express Polymer Letters · doi:10.3144/expresspolymlett.2016.53 · Cited by 258
Metadata
- Authors
- Badia, J. D., Strömberg, E., Karlsson, S., & Ribes-Greus, A.
- Venue
- Polymer Degradation and Stability
- Publisher
- Elsevier BV
- Published
- 2012-01
- Volume
- 97
- Issue
- 1
- Pages
- 98-107
- ISSN
- 0141-3910 (ISSN-L)
- OpenAlex
- W2053082287
- Cited by
- 209
- References
- 4
- FWCI
- 5.73
- Type
- journal article
- Language
- en
- Open access
- green
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- Badia, J. D., Strömberg, E., Karlsson, S., & Ribes-Greus, A. (2012). The role of crystalline, mobile amorphous and rigid amorphous fractions in the performance of recycled poly (ethylene terephthalate) (PET). Polymer Degradation and Stability. https://doi.org/10.1016/j.polymdegradstab.2011.10.008
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
