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dc.contributor.author
Vallejos, María Evangelina
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Aguado, Roberto J.
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Morcillo Martín, Ramón
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Méndez, José A.
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Vilaseca, Fabiola
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Tarrés, Quim
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Mutjé, Pere
dc.date.available
2023-12-01T16:18:13Z
dc.date.issued
2023-01
dc.identifier.citation
Vallejos, María Evangelina; Aguado, Roberto J.; Morcillo Martín, Ramón; Méndez, José A.; Vilaseca, Fabiola; et al.; Behavior of the Flexural Strength of Hemp/Polypropylene Composites: Evaluation of the Intrinsic Flexural Strength of Untreated Hemp Strands; Multidisciplinary Digital Publishing Institute; Polymers; 15; 2; 1-2023; 1-14
dc.identifier.uri
http://hdl.handle.net/11336/219062
dc.description.abstract
The growing demand for plant fiber-reinforced composites offers new opportunities to compete against glass fiber (GF)-reinforced composites, but their performance must be assessed, revised, and improved as much as possible. This work reports on the production and the flexural strength of composites from polypropylene (PP) and hemp strands (20–50 wt.%), using maleic anhydride-grafted PP (MAPP) as a compatibilizer. A computational assessment of the reaction between cellulose and MAPP suggested the formation of only one ester bond per maleic anhydride unit as the most stable product. We determined the most favorable MAPP dosage to be 0.06 g per gram of fiber. The maximum enhancement in flexural strength that was attained with this proportion of MAPP was 148%, corresponding to the maximum fiber load. The modified rule of mixtures and the assumption of similar coupling factors for tensile and flexural strength allowed us to estimate the intrinsic flexural strength of hemp strands as 953 ± 116 MPa. While falling short of the values for sized GF (2415 MPa), the reinforcement efficiency parameter of the natural fibers (0.209) was found to be higher than that of GF (0.045).
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Multidisciplinary Digital Publishing Institute
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
BIOCOMPOSITES
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FLEXURAL STRENGTH
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LIGNOCELLULOSICS
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MICROMECHANICS
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NATURAL FIBERS
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POLYPROPYLENE
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Ingeniería Química
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Ingeniería Química
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Behavior of the Flexural Strength of Hemp/Polypropylene Composites: Evaluation of the Intrinsic Flexural Strength of Untreated Hemp Strands
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-11-29T13:22:32Z
dc.identifier.eissn
2073-4360
dc.journal.volume
15
dc.journal.number
2
dc.journal.pagination
1-14
dc.journal.pais
Suiza
dc.journal.ciudad
Basilea
dc.description.fil
Fil: Vallejos, María Evangelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Materiales de Misiones. Universidad Nacional de Misiones. Facultad de Ciencias Exactas Químicas y Naturales. Instituto de Materiales de Misiones; Argentina
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Fil: Aguado, Roberto J.. Universidad de Girona; España
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Fil: Morcillo Martín, Ramón. Universidad de Cordoba. Facultad de Ciencias. Departamento de Quimica Organica E Ingenieria Quimica.; España
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Fil: Méndez, José A.. Universidad de Girona; España
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Fil: Vilaseca, Fabiola. Universidad de Girona; España
dc.description.fil
Fil: Tarrés, Quim. Universidad de Girona; España
dc.description.fil
Fil: Mutjé, Pere. Universidad de Girona; España
dc.journal.title
Polymers
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4360/15/2/371
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/polym15020371
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