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Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers

The influence of the addition of bentonite nanoparticles on the tensile and flexural strength of a thermosetting polymer matrix composite material reinforced with hemp fibers was de-terminated. All composites were manufactured with 5% of bentonite in the polymer mass–weight ratios and 10 to 45 wt% o...

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Autores principales: Fernández, Meylí Valin, González, María José Ahumada, Oyanadel, Rolando Briones, Rivera, José Luis Valin, Soto, Angel Rodríguez, Ortega, Alvaro González, Ketterer, Cristobal Galleguillos, Alvarez, Alexander Alfonso, Diaz, Francisco Rolando Valenzuela, García del Pino, Gilberto
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10056527/
https://www.ncbi.nlm.nih.gov/pubmed/36987352
http://dx.doi.org/10.3390/polym15061571
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author Fernández, Meylí Valin
González, María José Ahumada
Oyanadel, Rolando Briones
Rivera, José Luis Valin
Soto, Angel Rodríguez
Ortega, Alvaro González
Ketterer, Cristobal Galleguillos
Alvarez, Alexander Alfonso
Diaz, Francisco Rolando Valenzuela
García del Pino, Gilberto
author_facet Fernández, Meylí Valin
González, María José Ahumada
Oyanadel, Rolando Briones
Rivera, José Luis Valin
Soto, Angel Rodríguez
Ortega, Alvaro González
Ketterer, Cristobal Galleguillos
Alvarez, Alexander Alfonso
Diaz, Francisco Rolando Valenzuela
García del Pino, Gilberto
author_sort Fernández, Meylí Valin
collection PubMed
description The influence of the addition of bentonite nanoparticles on the tensile and flexural strength of a thermosetting polymer matrix composite material reinforced with hemp fibers was de-terminated. All composites were manufactured with 5% of bentonite in the polymer mass–weight ratios and 10 to 45 wt% of fibers with a step of 5%. For mechanical characterization, tensile and flexural tests were performed: scanning electron microscopy and energy-dispersive X-ray spectroscopy analyses were carried out. The tensile strength of the samples containing bentonite compared to the polymer samples with the fiber addition was affected for all fiber addition percentages, except for 35% while the flexural resistance improved with the addition of bentonite in the percentages of 20, 30, 35, and 45% of fiber addition. With the addition of bentonite, the maximum values of tensile and flexural strength were both obtained for the 35% addition of fibers, with values of 34.28 MPa and 98.04 MPa, respectively. The presence of bentonite favored the rigidity of the material to traction and bending, which was reflected through an increase in the elastic modulus compared to the composite that only had fiber. The maximum values obtained were 9065 MPa in tension and 8453 MPa in flexion for the 40% and 35% of addition of fiber, respectively. Microscopy showed a good distribution of fibers in the matrix, the absence of internal porosities, and a good interaction between matrix and reinforcement.
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spelling pubmed-100565272023-03-30 Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers Fernández, Meylí Valin González, María José Ahumada Oyanadel, Rolando Briones Rivera, José Luis Valin Soto, Angel Rodríguez Ortega, Alvaro González Ketterer, Cristobal Galleguillos Alvarez, Alexander Alfonso Diaz, Francisco Rolando Valenzuela García del Pino, Gilberto Polymers (Basel) Article The influence of the addition of bentonite nanoparticles on the tensile and flexural strength of a thermosetting polymer matrix composite material reinforced with hemp fibers was de-terminated. All composites were manufactured with 5% of bentonite in the polymer mass–weight ratios and 10 to 45 wt% of fibers with a step of 5%. For mechanical characterization, tensile and flexural tests were performed: scanning electron microscopy and energy-dispersive X-ray spectroscopy analyses were carried out. The tensile strength of the samples containing bentonite compared to the polymer samples with the fiber addition was affected for all fiber addition percentages, except for 35% while the flexural resistance improved with the addition of bentonite in the percentages of 20, 30, 35, and 45% of fiber addition. With the addition of bentonite, the maximum values of tensile and flexural strength were both obtained for the 35% addition of fibers, with values of 34.28 MPa and 98.04 MPa, respectively. The presence of bentonite favored the rigidity of the material to traction and bending, which was reflected through an increase in the elastic modulus compared to the composite that only had fiber. The maximum values obtained were 9065 MPa in tension and 8453 MPa in flexion for the 40% and 35% of addition of fiber, respectively. Microscopy showed a good distribution of fibers in the matrix, the absence of internal porosities, and a good interaction between matrix and reinforcement. MDPI 2023-03-22 /pmc/articles/PMC10056527/ /pubmed/36987352 http://dx.doi.org/10.3390/polym15061571 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
Fernández, Meylí Valin
González, María José Ahumada
Oyanadel, Rolando Briones
Rivera, José Luis Valin
Soto, Angel Rodríguez
Ortega, Alvaro González
Ketterer, Cristobal Galleguillos
Alvarez, Alexander Alfonso
Diaz, Francisco Rolando Valenzuela
García del Pino, Gilberto
Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers
title Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers
title_full Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers
title_fullStr Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers
title_full_unstemmed Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers
title_short Effect of Nanometric Particles of Bentonite on the Mechanical Properties of a Thermoset Polymeric Matrix Reinforced with Hemp Fibers
title_sort effect of nanometric particles of bentonite on the mechanical properties of a thermoset polymeric matrix reinforced with hemp fibers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10056527/
https://www.ncbi.nlm.nih.gov/pubmed/36987352
http://dx.doi.org/10.3390/polym15061571
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