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Rigid Polyurethane Biofoams Filled with Pine Seed Shell and Yerba Mate Wastes
Pine seed shells and yerba mate are common wastes leftover from the food and beverage industry. This study presents the development of rigid polyurethane foams (RPUFs) filled with pine seed shells and yerba mate at 5, 10 and 15 wt%. The fillers were characterized for chemical properties using bench...
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/PMC10180977/ https://www.ncbi.nlm.nih.gov/pubmed/37177340 http://dx.doi.org/10.3390/polym15092194 |
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author | Acosta, Andrey Pereira Kairytė, Agnė Członka, Sylwia Miedzińska, Karolina Aramburu, Arthur Behenck Barbosa, Kelvin Techera Amico, Sandro Campos Delucis, Rafael de Avila |
author_facet | Acosta, Andrey Pereira Kairytė, Agnė Członka, Sylwia Miedzińska, Karolina Aramburu, Arthur Behenck Barbosa, Kelvin Techera Amico, Sandro Campos Delucis, Rafael de Avila |
author_sort | Acosta, Andrey Pereira |
collection | PubMed |
description | Pine seed shells and yerba mate are common wastes leftover from the food and beverage industry. This study presents the development of rigid polyurethane foams (RPUFs) filled with pine seed shells and yerba mate at 5, 10 and 15 wt%. The fillers were characterized for chemical properties using bench chemistry analyses, and the RPUFs were investigated in terms of chemical, morphological, mechanical, thermal and colorimetric characteristics. The main results indicated that yerba mate showed good compatibility with the polyurethane system, probably because its available hydroxyl groups reacted with isocyanate groups to form urethane bonds, producing increases in mechanical and thermal properties. However, pine seed shell did not appear to be compatible. Anisotropy increased slightly, as there was an increase in the percentage of reinforcement. The mechanical properties of the yerba mate reinforced foams proved stable, while there was a loss of overall up to ~50% for all mechanical properties in those reinforced with pine seed shell. Thermal properties were improved up to ~40% for the yerba mate reinforced foams, while those reinforced with pine nuts were stable. It was possible to observe a decrease in the glass transition temperature (T(g)) of ~−5 °C for the yerba mate reinforced foams and ~−14 °C for the pine seed shell reinforced ones. |
format | Online Article Text |
id | pubmed-10180977 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-101809772023-05-13 Rigid Polyurethane Biofoams Filled with Pine Seed Shell and Yerba Mate Wastes Acosta, Andrey Pereira Kairytė, Agnė Członka, Sylwia Miedzińska, Karolina Aramburu, Arthur Behenck Barbosa, Kelvin Techera Amico, Sandro Campos Delucis, Rafael de Avila Polymers (Basel) Article Pine seed shells and yerba mate are common wastes leftover from the food and beverage industry. This study presents the development of rigid polyurethane foams (RPUFs) filled with pine seed shells and yerba mate at 5, 10 and 15 wt%. The fillers were characterized for chemical properties using bench chemistry analyses, and the RPUFs were investigated in terms of chemical, morphological, mechanical, thermal and colorimetric characteristics. The main results indicated that yerba mate showed good compatibility with the polyurethane system, probably because its available hydroxyl groups reacted with isocyanate groups to form urethane bonds, producing increases in mechanical and thermal properties. However, pine seed shell did not appear to be compatible. Anisotropy increased slightly, as there was an increase in the percentage of reinforcement. The mechanical properties of the yerba mate reinforced foams proved stable, while there was a loss of overall up to ~50% for all mechanical properties in those reinforced with pine seed shell. Thermal properties were improved up to ~40% for the yerba mate reinforced foams, while those reinforced with pine nuts were stable. It was possible to observe a decrease in the glass transition temperature (T(g)) of ~−5 °C for the yerba mate reinforced foams and ~−14 °C for the pine seed shell reinforced ones. MDPI 2023-05-05 /pmc/articles/PMC10180977/ /pubmed/37177340 http://dx.doi.org/10.3390/polym15092194 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 Acosta, Andrey Pereira Kairytė, Agnė Członka, Sylwia Miedzińska, Karolina Aramburu, Arthur Behenck Barbosa, Kelvin Techera Amico, Sandro Campos Delucis, Rafael de Avila Rigid Polyurethane Biofoams Filled with Pine Seed Shell and Yerba Mate Wastes |
title | Rigid Polyurethane Biofoams Filled with Pine Seed Shell and Yerba Mate Wastes |
title_full | Rigid Polyurethane Biofoams Filled with Pine Seed Shell and Yerba Mate Wastes |
title_fullStr | Rigid Polyurethane Biofoams Filled with Pine Seed Shell and Yerba Mate Wastes |
title_full_unstemmed | Rigid Polyurethane Biofoams Filled with Pine Seed Shell and Yerba Mate Wastes |
title_short | Rigid Polyurethane Biofoams Filled with Pine Seed Shell and Yerba Mate Wastes |
title_sort | rigid polyurethane biofoams filled with pine seed shell and yerba mate wastes |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10180977/ https://www.ncbi.nlm.nih.gov/pubmed/37177340 http://dx.doi.org/10.3390/polym15092194 |
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