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Artículo

Tensile Behavior of 3D Printed Polylactic Acid (PLA) Based Composites Reinforced with Natural Fiber

Agaliotis, Eliana MabelIcon ; Ake-Concha, Baltazar D.; May Pat, Alejandro; Morales Arias, Juan P.; Bernal, Celina RaquelIcon ; Valadez Gonzalez, Alex; Herrera Franco, Pedro J.; Proust, Gwénaëlle; Koh Dzul, J. Francisco; Carrillo, Jose G.; Flores Johnson, Emmanuel A.
Fecha de publicación: 09/2022
Editorial: MDPI
Revista: Polymers
ISSN: 2073-4360
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Compuestos

Resumen

Natural fiber-reinforced composite (NFRC) filaments for 3D printing were fabricated using polylactic acid (PLA) reinforced with 1–5 wt% henequen flour comprising particles with sizes between 90–250 μm. The flour was obtained from natural henequen fibers. NFRCs and pristine PLA specimens were printed with a 0° raster angle for tension tests. The results showed that the NFRCs’ measured density, porosity, and degree of crystallinity increased with flour content. The tensile tests showed that the NFRC Young’s modulus was lower than that of the printed pristine PLA. For 1 wt% flour content, the NFRCs’ maximum stress and strain to failure were higher than those of the printed PLA, which was attributed to the henequen fibers acting as reinforcement and delaying crack growth. However, for 2 wt% and higher flour contents, the NFRCs’ maximum stress was lower than that of the printed PLA. Microscopic characterization after testing showed an increase in voids and defects, with the increase in flour content attributed to particle agglomeration. For 1 wt% flour content, the NFRCs were also printed with raster angles of ±45° and 90° for comparison; the highest tensile properties were obtained with a 0° raster angle. Finally, adding 3 wt% content of maleic anhydride to the NFRC with 1 wt% flour content slightly increased the maximum stress. The results presented herein warrant further research to fully understand the mechanical properties of printed NFRCs made of PLA reinforced with natural henequen fibers.
Palabras clave: 3D PRINTING , ADDITIVE MANUFACTURING , HENEQUEN FIBER , MECHANICAL PROPERTY , NATURAL FIBER , NATURAL FIBER REINFORCED COMPOSITE (NFRC) , POLYLACTIC ACID (PLA)
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution 2.5 Unported (CC BY 2.5)
Identificadores
URI: http://hdl.handle.net/11336/214719
URL: https://www.mdpi.com/2073-4360/14/19/3976
DOI: http://dx.doi.org/10.3390/polym14193976
Colecciones
Articulos(ITPN)
Articulos de INSTITUTO DE TECNOLOGIA EN POLIMEROS Y NANOTECNOLOGIA
Citación
Agaliotis, Eliana Mabel; Ake-Concha, Baltazar D.; May Pat, Alejandro; Morales Arias, Juan P.; Bernal, Celina Raquel; et al.; Tensile Behavior of 3D Printed Polylactic Acid (PLA) Based Composites Reinforced with Natural Fiber; MDPI; Polymers; 14; 19; 9-2022; 1-17
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