Fast successive self-nucleation and annealing (SSA) thermal fractionation protocol for the characterization of polyolefin blends from mechanical recycling
dc.contributor.author | Góra, Magdalena | |
dc.contributor.author | Tranchida, Davide | |
dc.contributor.author | Albrecht, Albert | |
dc.contributor.author | Müller Sánchez, Alejandro Jesús | |
dc.contributor.author | Cavallo, Dario | |
dc.date.accessioned | 2024-04-08T16:36:07Z | |
dc.date.available | 2024-04-08T16:36:07Z | |
dc.date.issued | 2022-04-29 | |
dc.identifier.citation | Journal of Polymer Science 60(24) :3366-3378 (2022) | es_ES |
dc.identifier.issn | 2642-4169 | |
dc.identifier.uri | http://hdl.handle.net/10810/66556 | |
dc.description.abstract | The sorting stage of mechanical recycling of post-consumer polyolefins has severe challenges. Polypropylene (PP) is often contaminated with polyethylene (PE) and vice versa. To meet quality requirements, characterization of the recycled pellets is needed. To address this problem, fast characterization generating a statistical assessment of the content of the various batches from recycling is required. This investigation shows that the use of fast scanning rates (in a conventional Differential Scanning Calorimeter) in the successive self-nucleation and annealing (SSA) protocol can reduce the thermal fractionation time, without losing resolution power, as long as the increase in heating/cooling rate is compensated by reducing sample mass. Using a “coupled SSA protocol” for polypropylene and polyethylene fractions at a rate of 10 °C/min, the measurement time is approximately 420 min. Implementing mass compensation, faster heating rates (i.e., 30 °C/min) and using a single-fraction protocol, sufficient to determine the content of PP and high-density PE, reduced the time of the measurement to 75 min. Examples of fractionations of commercial post-consumer and post-industrial recycled polyolefin blends conducted at a faster rate are provided. The derived polyolefin content is compared with the standard temperature rising elution fractionation analysis to assess the validity of the proposed method. | es_ES |
dc.description.sponsorship | The authors acknowledge the financial support from the REPOL project; this project has received funding from the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 860221. Furthermore, the authors would like to thank Enrico Carmeli for training M.G. and Vitor Barroso for supervision in the early stage of this study. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Wiley | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/860221 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
dc.subject | polyethylene | es_ES |
dc.subject | polypropylene | es_ES |
dc.subject | recycling | es_ES |
dc.subject | thermal fractionation | es_ES |
dc.title | Fast successive self-nucleation and annealing (SSA) thermal fractionation protocol for the characterization of polyolefin blends from mechanical recycling | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2022 The Authors published by Wiley Periodicals LLC.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | es_ES |
dc.relation.publisherversion | https://onlinelibrary.wiley.com/doi/10.1002/pol.20220104 | es_ES |
dc.identifier.doi | 10.1002/pol.20220104 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Química aplicada | es_ES |
dc.departamentoeu | Kimika aplikatua | es_ES |
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Except where otherwise noted, this item's license is described as © 2022 The Authors published by Wiley Periodicals LLC.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.