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Novel Epoxidized Brazil Nut Oil as a Promising Plasticizing Agent for PLA

This work evaluates for the first time the potential of an environmentally friendly plasticizer derived from epoxidized Brazil nut oil (EBNO) for biopolymers, such as poly(lactic acid) (PLA). EBNO was used due to its high epoxy content, reaching an oxirane oxygen content of 4.22% after 8 h of epoxid...

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Detalles Bibliográficos
Autores principales: Perez-Nakai, Aina, Lerma-Canto, Alejandro, Dominguez-Candela, Ivan, Ferri, Jose Miguel, Fombuena, Vicent
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10180567/
https://www.ncbi.nlm.nih.gov/pubmed/37177145
http://dx.doi.org/10.3390/polym15091997
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author Perez-Nakai, Aina
Lerma-Canto, Alejandro
Dominguez-Candela, Ivan
Ferri, Jose Miguel
Fombuena, Vicent
author_facet Perez-Nakai, Aina
Lerma-Canto, Alejandro
Dominguez-Candela, Ivan
Ferri, Jose Miguel
Fombuena, Vicent
author_sort Perez-Nakai, Aina
collection PubMed
description This work evaluates for the first time the potential of an environmentally friendly plasticizer derived from epoxidized Brazil nut oil (EBNO) for biopolymers, such as poly(lactic acid) (PLA). EBNO was used due to its high epoxy content, reaching an oxirane oxygen content of 4.22% after 8 h of epoxidation for a peroxide/oil ratio of 2:1. Melt extrusion was used to plasticize PLA formulations with different EBNO contents in the range of 0–10 phr. The effects of different amounts of EBNO in the PLA matrix were studied by performing mechanical, thermal, thermomechanical, and morphological characterizations. The tensile test demonstrated the feasibility of EBNO as a plasticizer for PLA by increasing the elongation at break by 70.9% for the plasticized PLA with 7.5 phr of EBNO content in comparison to the unplasticized PLA. The field-emission scanning electron microscopy (FESEM) of the fractured surfaces from the impact tests showed an increase in porosity and roughness in the areas with EBNO addition, which was characteristic of ductile failure. In addition, a disintegration test was performed, and no influence on the PLA biodegradation process was observed. The overall results demonstrate the ability of EBNO to compete with other commercial plasticizers in improving the ductile properties of PLA.
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spelling pubmed-101805672023-05-13 Novel Epoxidized Brazil Nut Oil as a Promising Plasticizing Agent for PLA Perez-Nakai, Aina Lerma-Canto, Alejandro Dominguez-Candela, Ivan Ferri, Jose Miguel Fombuena, Vicent Polymers (Basel) Article This work evaluates for the first time the potential of an environmentally friendly plasticizer derived from epoxidized Brazil nut oil (EBNO) for biopolymers, such as poly(lactic acid) (PLA). EBNO was used due to its high epoxy content, reaching an oxirane oxygen content of 4.22% after 8 h of epoxidation for a peroxide/oil ratio of 2:1. Melt extrusion was used to plasticize PLA formulations with different EBNO contents in the range of 0–10 phr. The effects of different amounts of EBNO in the PLA matrix were studied by performing mechanical, thermal, thermomechanical, and morphological characterizations. The tensile test demonstrated the feasibility of EBNO as a plasticizer for PLA by increasing the elongation at break by 70.9% for the plasticized PLA with 7.5 phr of EBNO content in comparison to the unplasticized PLA. The field-emission scanning electron microscopy (FESEM) of the fractured surfaces from the impact tests showed an increase in porosity and roughness in the areas with EBNO addition, which was characteristic of ductile failure. In addition, a disintegration test was performed, and no influence on the PLA biodegradation process was observed. The overall results demonstrate the ability of EBNO to compete with other commercial plasticizers in improving the ductile properties of PLA. MDPI 2023-04-23 /pmc/articles/PMC10180567/ /pubmed/37177145 http://dx.doi.org/10.3390/polym15091997 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
Perez-Nakai, Aina
Lerma-Canto, Alejandro
Dominguez-Candela, Ivan
Ferri, Jose Miguel
Fombuena, Vicent
Novel Epoxidized Brazil Nut Oil as a Promising Plasticizing Agent for PLA
title Novel Epoxidized Brazil Nut Oil as a Promising Plasticizing Agent for PLA
title_full Novel Epoxidized Brazil Nut Oil as a Promising Plasticizing Agent for PLA
title_fullStr Novel Epoxidized Brazil Nut Oil as a Promising Plasticizing Agent for PLA
title_full_unstemmed Novel Epoxidized Brazil Nut Oil as a Promising Plasticizing Agent for PLA
title_short Novel Epoxidized Brazil Nut Oil as a Promising Plasticizing Agent for PLA
title_sort novel epoxidized brazil nut oil as a promising plasticizing agent for pla
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10180567/
https://www.ncbi.nlm.nih.gov/pubmed/37177145
http://dx.doi.org/10.3390/polym15091997
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