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Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass
Biocomposites based on polylactic acid (PLA), tall wheatgrass (TWG), and hemp (H) were made by injection molding. The article discusses the impact of the agrofiller content on the composite properties, including thermal (DSC, DMA, and TG) and mechanical characteristics (tensile modulus, tensile stre...
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/PMC10650164/ https://www.ncbi.nlm.nih.gov/pubmed/37959520 http://dx.doi.org/10.3390/ma16216923 |
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author | Gozdecki, Cezary Moraczewski, Krzysztof Kociszewski, Marek |
author_facet | Gozdecki, Cezary Moraczewski, Krzysztof Kociszewski, Marek |
author_sort | Gozdecki, Cezary |
collection | PubMed |
description | Biocomposites based on polylactic acid (PLA), tall wheatgrass (TWG), and hemp (H) were made by injection molding. The article discusses the impact of the agrofiller content on the composite properties, including thermal (DSC, DMA, and TG) and mechanical characteristics (tensile modulus, tensile strength, and impact strength). Generally, the introduction of a plant filler into the polylactide matrix reduced the thermal resistance of the resulting composites. Plant fillers influenced primarily the cold crystallization process, probably due to their nucleating properties. The addition of fillers to the PLA matrix resulted in an increased storage modulus across all tested temperatures compared to pure PLA. In the case of a composite with 50% of plant fillers, it was almost 118%. The mechanical properties of the tested composites depended significantly on the amount of plant filler used. It was observed that adding 50% of plant filler to PLA led to a twofold increase in tensile modulus and a decrease in tensile strength and impact strength by an average of 23 and 70%, respectively. It was determined that composites incorporating tall wheatgrass (TWG) particles exhibited a slightly elevated tensile modulus while showcasing a marginally reduced strength and impact resistance in comparison to composites containing hemp (H) components. |
format | Online Article Text |
id | pubmed-10650164 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-106501642023-10-28 Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass Gozdecki, Cezary Moraczewski, Krzysztof Kociszewski, Marek Materials (Basel) Article Biocomposites based on polylactic acid (PLA), tall wheatgrass (TWG), and hemp (H) were made by injection molding. The article discusses the impact of the agrofiller content on the composite properties, including thermal (DSC, DMA, and TG) and mechanical characteristics (tensile modulus, tensile strength, and impact strength). Generally, the introduction of a plant filler into the polylactide matrix reduced the thermal resistance of the resulting composites. Plant fillers influenced primarily the cold crystallization process, probably due to their nucleating properties. The addition of fillers to the PLA matrix resulted in an increased storage modulus across all tested temperatures compared to pure PLA. In the case of a composite with 50% of plant fillers, it was almost 118%. The mechanical properties of the tested composites depended significantly on the amount of plant filler used. It was observed that adding 50% of plant filler to PLA led to a twofold increase in tensile modulus and a decrease in tensile strength and impact strength by an average of 23 and 70%, respectively. It was determined that composites incorporating tall wheatgrass (TWG) particles exhibited a slightly elevated tensile modulus while showcasing a marginally reduced strength and impact resistance in comparison to composites containing hemp (H) components. MDPI 2023-10-28 /pmc/articles/PMC10650164/ /pubmed/37959520 http://dx.doi.org/10.3390/ma16216923 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 Gozdecki, Cezary Moraczewski, Krzysztof Kociszewski, Marek Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass |
title | Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass |
title_full | Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass |
title_fullStr | Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass |
title_full_unstemmed | Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass |
title_short | Thermal and Mechanical Properties of Biocomposites Based on Polylactide and Tall Wheatgrass |
title_sort | thermal and mechanical properties of biocomposites based on polylactide and tall wheatgrass |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10650164/ https://www.ncbi.nlm.nih.gov/pubmed/37959520 http://dx.doi.org/10.3390/ma16216923 |
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