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Morphological and Mechanical Properties of Bilayers Wood-Plastic Composites and Foams Obtained by Rotational Molding
In this work, the suitability for the production of sustainable and lightweight materials with specific mechanical properties and potentially lower costs was studied. Agave fiber (AF), an agro-industrial waste, was used as a reinforcement and azodicarbonamide (ACA) as a chemical blowing agent (CBA)...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182834/ https://www.ncbi.nlm.nih.gov/pubmed/32106484 http://dx.doi.org/10.3390/polym12030503 |
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author | Vázquez Fletes, Roberto Carlos Cisneros López, Erick Omar Moscoso Sánchez, Francisco Javier Mendizábal, Eduardo González Núñez, Rubén Rodrigue, Denis Ortega Gudiño, Pedro |
author_facet | Vázquez Fletes, Roberto Carlos Cisneros López, Erick Omar Moscoso Sánchez, Francisco Javier Mendizábal, Eduardo González Núñez, Rubén Rodrigue, Denis Ortega Gudiño, Pedro |
author_sort | Vázquez Fletes, Roberto Carlos |
collection | PubMed |
description | In this work, the suitability for the production of sustainable and lightweight materials with specific mechanical properties and potentially lower costs was studied. Agave fiber (AF), an agro-industrial waste, was used as a reinforcement and azodicarbonamide (ACA) as a chemical blowing agent (CBA) in the production of bilayer materials via rotational molding. The external layer was a composite of linear medium density polyethylene (LMDPE) with different AF contents (0–15 wt %), while the internal layer was foamed LMDPE (using 0–0.75 wt % ACA). The samples were characterized in terms of thermal, morphological and mechanical properties to obtain a complete understanding of the structure-properties relationships. Increases in the thicknesses of the parts (up to 127%) and a bulk density reduction were obtained by using ACA (0.75 wt %) and AF (15 wt %). Further, the addition of AF increased the tensile (23%) and flexural (29%) moduli compared to the neat LMDPE, but when ACA was used, lower values (75% and 56% for the tensile and flexural moduli, respectively) were obtained. Based on these results, a balance between mechanical properties and lightweight can be achieved by selecting the AF and ACA contents, as well as the performance and aesthetics properties of the rotomolded parts. |
format | Online Article Text |
id | pubmed-7182834 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-71828342020-05-01 Morphological and Mechanical Properties of Bilayers Wood-Plastic Composites and Foams Obtained by Rotational Molding Vázquez Fletes, Roberto Carlos Cisneros López, Erick Omar Moscoso Sánchez, Francisco Javier Mendizábal, Eduardo González Núñez, Rubén Rodrigue, Denis Ortega Gudiño, Pedro Polymers (Basel) Article In this work, the suitability for the production of sustainable and lightweight materials with specific mechanical properties and potentially lower costs was studied. Agave fiber (AF), an agro-industrial waste, was used as a reinforcement and azodicarbonamide (ACA) as a chemical blowing agent (CBA) in the production of bilayer materials via rotational molding. The external layer was a composite of linear medium density polyethylene (LMDPE) with different AF contents (0–15 wt %), while the internal layer was foamed LMDPE (using 0–0.75 wt % ACA). The samples were characterized in terms of thermal, morphological and mechanical properties to obtain a complete understanding of the structure-properties relationships. Increases in the thicknesses of the parts (up to 127%) and a bulk density reduction were obtained by using ACA (0.75 wt %) and AF (15 wt %). Further, the addition of AF increased the tensile (23%) and flexural (29%) moduli compared to the neat LMDPE, but when ACA was used, lower values (75% and 56% for the tensile and flexural moduli, respectively) were obtained. Based on these results, a balance between mechanical properties and lightweight can be achieved by selecting the AF and ACA contents, as well as the performance and aesthetics properties of the rotomolded parts. MDPI 2020-02-25 /pmc/articles/PMC7182834/ /pubmed/32106484 http://dx.doi.org/10.3390/polym12030503 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Vázquez Fletes, Roberto Carlos Cisneros López, Erick Omar Moscoso Sánchez, Francisco Javier Mendizábal, Eduardo González Núñez, Rubén Rodrigue, Denis Ortega Gudiño, Pedro Morphological and Mechanical Properties of Bilayers Wood-Plastic Composites and Foams Obtained by Rotational Molding |
title | Morphological and Mechanical Properties of Bilayers Wood-Plastic Composites and Foams Obtained by Rotational Molding |
title_full | Morphological and Mechanical Properties of Bilayers Wood-Plastic Composites and Foams Obtained by Rotational Molding |
title_fullStr | Morphological and Mechanical Properties of Bilayers Wood-Plastic Composites and Foams Obtained by Rotational Molding |
title_full_unstemmed | Morphological and Mechanical Properties of Bilayers Wood-Plastic Composites and Foams Obtained by Rotational Molding |
title_short | Morphological and Mechanical Properties of Bilayers Wood-Plastic Composites and Foams Obtained by Rotational Molding |
title_sort | morphological and mechanical properties of bilayers wood-plastic composites and foams obtained by rotational molding |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182834/ https://www.ncbi.nlm.nih.gov/pubmed/32106484 http://dx.doi.org/10.3390/polym12030503 |
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