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Mechanical Performance of Rotationally Molded Multilayer mLDPE/Banana-Fiber Composites
The incorporation of materials different from the polymer within the rotational molding process usually results in lowered mechanical properties, where impact strength is of particular concern. In order to overcome this issue, multilayer structures of virgin polyethylene (PE) and banana fiber compos...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10608177/ https://www.ncbi.nlm.nih.gov/pubmed/37895735 http://dx.doi.org/10.3390/ma16206749 |
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author | Kelly-Walley, Jake Ortega, Zaida McCourt, Mark Millar, Bronagh Suárez, Luis Martin, Peter |
author_facet | Kelly-Walley, Jake Ortega, Zaida McCourt, Mark Millar, Bronagh Suárez, Luis Martin, Peter |
author_sort | Kelly-Walley, Jake |
collection | PubMed |
description | The incorporation of materials different from the polymer within the rotational molding process usually results in lowered mechanical properties, where impact strength is of particular concern. In order to overcome this issue, multilayer structures of virgin polyethylene (PE) and banana fiber composites were prepared to determine the impact of the different layers on the performance of the final part. Cycle time has been studied to identify the influence of the addition of fibers in the process. The tensile, flexural and impact properties have been analyzed, finding improvements in Young’s modulus of up to 13%, although at the expense of significant decreases in impact strength. A reduction in the fiber size due to the pulverization process was observed, which affected the rheological and mechanical behavior of the composite. The beneficial effects of working in multiple layers have been demonstrated in this work, where composites with up to 5% of banana fiber have been produced in two-layer structures. Finally, the need to add neat polyethylene in the external layer is also highlighted as a way to counteract the reductions in mechanical properties, particularly for flexural elastic modulus and tensile strength, and this also helps with the drop in impact behavior to a lower extent. |
format | Online Article Text |
id | pubmed-10608177 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-106081772023-10-28 Mechanical Performance of Rotationally Molded Multilayer mLDPE/Banana-Fiber Composites Kelly-Walley, Jake Ortega, Zaida McCourt, Mark Millar, Bronagh Suárez, Luis Martin, Peter Materials (Basel) Article The incorporation of materials different from the polymer within the rotational molding process usually results in lowered mechanical properties, where impact strength is of particular concern. In order to overcome this issue, multilayer structures of virgin polyethylene (PE) and banana fiber composites were prepared to determine the impact of the different layers on the performance of the final part. Cycle time has been studied to identify the influence of the addition of fibers in the process. The tensile, flexural and impact properties have been analyzed, finding improvements in Young’s modulus of up to 13%, although at the expense of significant decreases in impact strength. A reduction in the fiber size due to the pulverization process was observed, which affected the rheological and mechanical behavior of the composite. The beneficial effects of working in multiple layers have been demonstrated in this work, where composites with up to 5% of banana fiber have been produced in two-layer structures. Finally, the need to add neat polyethylene in the external layer is also highlighted as a way to counteract the reductions in mechanical properties, particularly for flexural elastic modulus and tensile strength, and this also helps with the drop in impact behavior to a lower extent. MDPI 2023-10-18 /pmc/articles/PMC10608177/ /pubmed/37895735 http://dx.doi.org/10.3390/ma16206749 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kelly-Walley, Jake Ortega, Zaida McCourt, Mark Millar, Bronagh Suárez, Luis Martin, Peter Mechanical Performance of Rotationally Molded Multilayer mLDPE/Banana-Fiber Composites |
title | Mechanical Performance of Rotationally Molded Multilayer mLDPE/Banana-Fiber Composites |
title_full | Mechanical Performance of Rotationally Molded Multilayer mLDPE/Banana-Fiber Composites |
title_fullStr | Mechanical Performance of Rotationally Molded Multilayer mLDPE/Banana-Fiber Composites |
title_full_unstemmed | Mechanical Performance of Rotationally Molded Multilayer mLDPE/Banana-Fiber Composites |
title_short | Mechanical Performance of Rotationally Molded Multilayer mLDPE/Banana-Fiber Composites |
title_sort | mechanical performance of rotationally molded multilayer mldpe/banana-fiber composites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10608177/ https://www.ncbi.nlm.nih.gov/pubmed/37895735 http://dx.doi.org/10.3390/ma16206749 |
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