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Article

Mechanical and Physicochemical Properties of 3D-Printed Agave Fibers/Poly(lactic) Acid Biocomposites

University Center of Exact Sciences and Engineering (CUCEI), University of Guadalajara, Guadalajara 44430, Mexico
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Academic Editor: Stephan Rudykh
Materials 2021, 14(11), 3111; https://doi.org/10.3390/ma14113111
Received: 28 April 2021 / Revised: 28 May 2021 / Accepted: 1 June 2021 / Published: 5 June 2021
(This article belongs to the Special Issue Functional and Architected Materials)
In order to provide a second economic life to agave fibers, an important waste material from the production of tequila, filaments based on polylactic acid (PLA) were filled with agave fibers (0, 3, 5, 10 wt%), and further utilized to produce biocomposites by fused deposition modeling (FDM)-based 3D printing at two raster angles (−45°/45° and 0°/90°). Differential scanning calorimetry, water uptake, density variation, morphology, and composting of the biocomposites were studied. The mechanical properties of the biocomposites (tensile, flexural, and Charpy impact properties) were determined following ASTM international norms. The addition of agave fibers to the filaments increased the crystallinity value from 23.7 to 44.1%. However, the fibers generated porous structures with a higher content of open cells and lower apparent densities than neat PLA pieces. The printing angle had a low significant effect on flexural and tensile properties, but directly affected the morphology of the printed biocomposites, positively influenced the impact strength, and slightly improved the absorption values for biocomposites printed at −45°/45°. Overall, increasing the concentrations of agave fibers had a detrimental effect on the mechanical properties of the biocomposites. The disintegration of the biocomposites under simulated composting conditions was slowed 1.6-fold with the addition of agave fibers, compared to neat PLA. View Full-Text
Keywords: agave fibers; 3D printing; fused deposition modeling; poly(lactic) acid; biocomposites agave fibers; 3D printing; fused deposition modeling; poly(lactic) acid; biocomposites
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MDPI and ACS Style

Figueroa-Velarde, V.; Diaz-Vidal, T.; Cisneros-López, E.O.; Robledo-Ortiz, J.R.; López-Naranjo, E.J.; Ortega-Gudiño, P.; Rosales-Rivera, L.C. Mechanical and Physicochemical Properties of 3D-Printed Agave Fibers/Poly(lactic) Acid Biocomposites. Materials 2021, 14, 3111. https://doi.org/10.3390/ma14113111

AMA Style

Figueroa-Velarde V, Diaz-Vidal T, Cisneros-López EO, Robledo-Ortiz JR, López-Naranjo EJ, Ortega-Gudiño P, Rosales-Rivera LC. Mechanical and Physicochemical Properties of 3D-Printed Agave Fibers/Poly(lactic) Acid Biocomposites. Materials. 2021; 14(11):3111. https://doi.org/10.3390/ma14113111

Chicago/Turabian Style

Figueroa-Velarde, Valeria, Tania Diaz-Vidal, Erick O. Cisneros-López, Jorge R. Robledo-Ortiz, Edgar J. López-Naranjo, Pedro Ortega-Gudiño, and Luis C. Rosales-Rivera. 2021. "Mechanical and Physicochemical Properties of 3D-Printed Agave Fibers/Poly(lactic) Acid Biocomposites" Materials 14, no. 11: 3111. https://doi.org/10.3390/ma14113111

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