Por favor, use este identificador para citar o enlazar este ítem: http://cicy.repositorioinstitucional.mx/jspui/handle/1003/1831
Micro- and macromechanical properties of a composite with a ternary PLA-PCL-TPS matrix reinforced with short fique fibers
José Herminsul Mina Hernández
Alex Valadez González
MARIO FERNANDO MUÑOZ VELEZ
Acceso Abierto
Atribución-NoComercial-SinDerivadas
doi:10.3390/polym12010058
BIODEGRADABLE POLYMERS
FIBER/MATRIX BOND
FIBERS
TERNARY BLENDS
Biocomposites were prepared from a ternary matrix of polylactic acid (PLA), polycaprolactone (PCL), and thermoplastic starch (TPS) and reinforced with native fique fibers from southwestern Colombia. The influence of surface modification by alkalization of fique fibers on the interfacial properties of the biocomposite was studied using pull-out tests. Additionally, the effect of short fique fibers in three proportions (10%, 20%, and 30% (w/w)) on the tensile mechanical properties of the composite was evaluated. The experimental results indicated that the interfacial shear strength (IFSS) of the ternary matrix was predominantly influenced by PCL and characterized by the development of a weak interface that failed due to matrix yielding. Furthermore, the incorporation of short fique fibers increased the elastic modulus of the composite to values similar to those estimated with the Tsai-Pagano model. The alkalization treatment of the fique fibers improved the interface with the composite matrix, and this phenomenon was evidenced by the results of the micromechanical and tensile characterizations of the composite.
2020
Artículo
Polymers (Basel). 2020 Jan 1;12(1):58. doi: 10.3390/polym12010058. PMID: 31906318; PMCID: PMC7023529.
Inglés
Mina JH, González AV, Muñoz-Vélez MF. Micro- and Macromechanical Properties of a Composite with a Ternary PLA-PCL-TPS Matrix Reinforced with Short Fique Fibers. Polymers (Basel). 2020 Jan 1;12(1):58. doi: 10.3390/polym12010058. PMID: 31906318; PMCID: PMC7023529
PROPIEDADES DE LOS MATERIALES
Versión publicada
publishedVersion - Versión publicada
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