Behavior of the Flexural Strength of Hemp/Polypropylene Composites: Evaluation of the Intrinsic Flexural Strength of Untreated Hemp Strands

Autores
Vallejos, María Evangelina; Aguado, Roberto J.; Morcillo Martín, Ramón; Méndez, José A.; Vilaseca, Fabiola; Tarrés, Quim; Mutjé, Pere
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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).
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
Fil: Aguado, Roberto J.. Universidad de Girona; España
Fil: Morcillo Martín, Ramón. Universidad de Cordoba. Facultad de Ciencias. Departamento de Quimica Organica E Ingenieria Quimica.; España
Fil: Méndez, José A.. Universidad de Girona; España
Fil: Vilaseca, Fabiola. Universidad de Girona; España
Fil: Tarrés, Quim. Universidad de Girona; España
Fil: Mutjé, Pere. Universidad de Girona; España
Materia
BIOCOMPOSITES
FLEXURAL STRENGTH
LIGNOCELLULOSICS
MICROMECHANICS
NATURAL FIBERS
POLYPROPYLENE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/219062
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/219062
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Behavior of the Flexural Strength of Hemp/Polypropylene Composites: Evaluation of the Intrinsic Flexural Strength of Untreated Hemp StrandsVallejos, María EvangelinaAguado, Roberto J.Morcillo Martín, RamónMéndez, José A.Vilaseca, FabiolaTarrés, QuimMutjé, PereBIOCOMPOSITESFLEXURAL STRENGTHLIGNOCELLULOSICSMICROMECHANICSNATURAL FIBERSPOLYPROPYLENEhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The 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).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; ArgentinaFil: Aguado, Roberto J.. Universidad de Girona; EspañaFil: Morcillo Martín, Ramón. Universidad de Cordoba. Facultad de Ciencias. Departamento de Quimica Organica E Ingenieria Quimica.; EspañaFil: Méndez, José A.. Universidad de Girona; EspañaFil: Vilaseca, Fabiola. Universidad de Girona; EspañaFil: Tarrés, Quim. Universidad de Girona; EspañaFil: Mutjé, Pere. Universidad de Girona; EspañaMultidisciplinary Digital Publishing Institute2023-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/219062Vallejos, 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; 1-142073-4360CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4360/15/2/371info:eu-repo/semantics/altIdentifier/doi/10.3390/polym15020371info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:41:00Zoai:ri.conicet.gov.ar:11336/219062instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:41:01.049CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Behavior of the Flexural Strength of Hemp/Polypropylene Composites: Evaluation of the Intrinsic Flexural Strength of Untreated Hemp Strands
title Behavior of the Flexural Strength of Hemp/Polypropylene Composites: Evaluation of the Intrinsic Flexural Strength of Untreated Hemp Strands
spellingShingle Behavior of the Flexural Strength of Hemp/Polypropylene Composites: Evaluation of the Intrinsic Flexural Strength of Untreated Hemp Strands
Vallejos, María Evangelina
BIOCOMPOSITES
FLEXURAL STRENGTH
LIGNOCELLULOSICS
MICROMECHANICS
NATURAL FIBERS
POLYPROPYLENE
title_short Behavior of the Flexural Strength of Hemp/Polypropylene Composites: Evaluation of the Intrinsic Flexural Strength of Untreated Hemp Strands
title_full Behavior of the Flexural Strength of Hemp/Polypropylene Composites: Evaluation of the Intrinsic Flexural Strength of Untreated Hemp Strands
title_fullStr Behavior of the Flexural Strength of Hemp/Polypropylene Composites: Evaluation of the Intrinsic Flexural Strength of Untreated Hemp Strands
title_full_unstemmed Behavior of the Flexural Strength of Hemp/Polypropylene Composites: Evaluation of the Intrinsic Flexural Strength of Untreated Hemp Strands
title_sort Behavior of the Flexural Strength of Hemp/Polypropylene Composites: Evaluation of the Intrinsic Flexural Strength of Untreated Hemp Strands
dc.creator.none.fl_str_mv Vallejos, María Evangelina
Aguado, Roberto J.
Morcillo Martín, Ramón
Méndez, José A.
Vilaseca, Fabiola
Tarrés, Quim
Mutjé, Pere
author Vallejos, María Evangelina
author_facet Vallejos, María Evangelina
Aguado, Roberto J.
Morcillo Martín, Ramón
Méndez, José A.
Vilaseca, Fabiola
Tarrés, Quim
Mutjé, Pere
author_role author
author2 Aguado, Roberto J.
Morcillo Martín, Ramón
Méndez, José A.
Vilaseca, Fabiola
Tarrés, Quim
Mutjé, Pere
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv BIOCOMPOSITES
FLEXURAL STRENGTH
LIGNOCELLULOSICS
MICROMECHANICS
NATURAL FIBERS
POLYPROPYLENE
topic BIOCOMPOSITES
FLEXURAL STRENGTH
LIGNOCELLULOSICS
MICROMECHANICS
NATURAL FIBERS
POLYPROPYLENE
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv 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).
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
Fil: Aguado, Roberto J.. Universidad de Girona; España
Fil: Morcillo Martín, Ramón. Universidad de Cordoba. Facultad de Ciencias. Departamento de Quimica Organica E Ingenieria Quimica.; España
Fil: Méndez, José A.. Universidad de Girona; España
Fil: Vilaseca, Fabiola. Universidad de Girona; España
Fil: Tarrés, Quim. Universidad de Girona; España
Fil: Mutjé, Pere. Universidad de Girona; España
description 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).
publishDate 2023
dc.date.none.fl_str_mv 2023-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/219062
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
2073-4360
CONICET Digital
CONICET
url http://hdl.handle.net/11336/219062
identifier_str_mv 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
2073-4360
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4360/15/2/371
info:eu-repo/semantics/altIdentifier/doi/10.3390/polym15020371
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613296842342400
score 13.070432

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