Influence of twin-screw processing conditions on the mechanical properties of biocomposites

Autores
Alvarez, Vera Alejandra; Ianonni, Antonio; Kenny, José; Vázquez, Analía
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In order to evaluate the effect of processing conditions, composites of MaterBi-Y matrix with 15 wt% sisal fibers are obtained with different temperature profiles and speeds of rotation of the screw, using a twin-screw extruder. Three different temperature profiles are selected. The speeds of rotation are 25, 60, and 80 rpm. The samples are obtained by compression at 180°C and 700 MPa for 10 min. The mechanical properties of composites increase when the rotation speed changes from 25 to 60 rpm and then decreases. Fiber breakage increases with rotational speed, but aspect ratio increases too. Increased modulus with fiber aspect ratio is easily understood because longer fibers carry more tensile loads as a result of increase in transfer length. The decrease in the mechanical properties at a high rotational speed can be due to the degradation of the matrix. The impact properties increase when temperature increases. The decrease in impact properties at temperatures above 185°C can be due to the thermal decomposition of the material.
Fil: Alvarez, Vera Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Ianonni, Antonio. Università di Perugia; Italia
Fil: Kenny, José. Università di Perugia; Italia
Fil: Vázquez, Analía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnología en Polímeros y Nanotecnología. Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnología en Polímeros y Nanotecnología; Argentina
Materia
BIODEGRADABLE
NATURAL FIBER
PROCESSING
SISAL FIBER
STARCH
TWIN-SCREW
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/94346
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/94346
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Influence of twin-screw processing conditions on the mechanical properties of biocompositesAlvarez, Vera AlejandraIanonni, AntonioKenny, JoséVázquez, AnalíaBIODEGRADABLENATURAL FIBERPROCESSINGSISAL FIBERSTARCHTWIN-SCREWhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2In order to evaluate the effect of processing conditions, composites of MaterBi-Y matrix with 15 wt% sisal fibers are obtained with different temperature profiles and speeds of rotation of the screw, using a twin-screw extruder. Three different temperature profiles are selected. The speeds of rotation are 25, 60, and 80 rpm. The samples are obtained by compression at 180°C and 700 MPa for 10 min. The mechanical properties of composites increase when the rotation speed changes from 25 to 60 rpm and then decreases. Fiber breakage increases with rotational speed, but aspect ratio increases too. Increased modulus with fiber aspect ratio is easily understood because longer fibers carry more tensile loads as a result of increase in transfer length. The decrease in the mechanical properties at a high rotational speed can be due to the degradation of the matrix. The impact properties increase when temperature increases. The decrease in impact properties at temperatures above 185°C can be due to the thermal decomposition of the material.Fil: Alvarez, Vera Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Ianonni, Antonio. Università di Perugia; ItaliaFil: Kenny, José. Università di Perugia; ItaliaFil: Vázquez, Analía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnología en Polímeros y Nanotecnología. Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnología en Polímeros y Nanotecnología; ArgentinaSAGE Publications2005-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/94346Alvarez, Vera Alejandra; Ianonni, Antonio; Kenny, José; Vázquez, Analía; Influence of twin-screw processing conditions on the mechanical properties of biocomposites; SAGE Publications; Journal of Composite Materials; 39; 22; 1-11-2005; 2023-20380021-9983CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1177/0021998305052025info:eu-repo/semantics/altIdentifier/url/https://journals.sagepub.com/doi/10.1177/0021998305052025info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:32:37Zoai:ri.conicet.gov.ar:11336/94346instacron: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 10:32:37.217CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of twin-screw processing conditions on the mechanical properties of biocomposites
title Influence of twin-screw processing conditions on the mechanical properties of biocomposites
spellingShingle Influence of twin-screw processing conditions on the mechanical properties of biocomposites
Alvarez, Vera Alejandra
BIODEGRADABLE
NATURAL FIBER
PROCESSING
SISAL FIBER
STARCH
TWIN-SCREW
title_short Influence of twin-screw processing conditions on the mechanical properties of biocomposites
title_full Influence of twin-screw processing conditions on the mechanical properties of biocomposites
title_fullStr Influence of twin-screw processing conditions on the mechanical properties of biocomposites
title_full_unstemmed Influence of twin-screw processing conditions on the mechanical properties of biocomposites
title_sort Influence of twin-screw processing conditions on the mechanical properties of biocomposites
dc.creator.none.fl_str_mv Alvarez, Vera Alejandra
Ianonni, Antonio
Kenny, José
Vázquez, Analía
author Alvarez, Vera Alejandra
author_facet Alvarez, Vera Alejandra
Ianonni, Antonio
Kenny, José
Vázquez, Analía
author_role author
author2 Ianonni, Antonio
Kenny, José
Vázquez, Analía
author2_role author
author
author
dc.subject.none.fl_str_mv BIODEGRADABLE
NATURAL FIBER
PROCESSING
SISAL FIBER
STARCH
TWIN-SCREW
topic BIODEGRADABLE
NATURAL FIBER
PROCESSING
SISAL FIBER
STARCH
TWIN-SCREW
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In order to evaluate the effect of processing conditions, composites of MaterBi-Y matrix with 15 wt% sisal fibers are obtained with different temperature profiles and speeds of rotation of the screw, using a twin-screw extruder. Three different temperature profiles are selected. The speeds of rotation are 25, 60, and 80 rpm. The samples are obtained by compression at 180°C and 700 MPa for 10 min. The mechanical properties of composites increase when the rotation speed changes from 25 to 60 rpm and then decreases. Fiber breakage increases with rotational speed, but aspect ratio increases too. Increased modulus with fiber aspect ratio is easily understood because longer fibers carry more tensile loads as a result of increase in transfer length. The decrease in the mechanical properties at a high rotational speed can be due to the degradation of the matrix. The impact properties increase when temperature increases. The decrease in impact properties at temperatures above 185°C can be due to the thermal decomposition of the material.
Fil: Alvarez, Vera Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Ianonni, Antonio. Università di Perugia; Italia
Fil: Kenny, José. Università di Perugia; Italia
Fil: Vázquez, Analía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnología en Polímeros y Nanotecnología. Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnología en Polímeros y Nanotecnología; Argentina
description In order to evaluate the effect of processing conditions, composites of MaterBi-Y matrix with 15 wt% sisal fibers are obtained with different temperature profiles and speeds of rotation of the screw, using a twin-screw extruder. Three different temperature profiles are selected. The speeds of rotation are 25, 60, and 80 rpm. The samples are obtained by compression at 180°C and 700 MPa for 10 min. The mechanical properties of composites increase when the rotation speed changes from 25 to 60 rpm and then decreases. Fiber breakage increases with rotational speed, but aspect ratio increases too. Increased modulus with fiber aspect ratio is easily understood because longer fibers carry more tensile loads as a result of increase in transfer length. The decrease in the mechanical properties at a high rotational speed can be due to the degradation of the matrix. The impact properties increase when temperature increases. The decrease in impact properties at temperatures above 185°C can be due to the thermal decomposition of the material.
publishDate 2005
dc.date.none.fl_str_mv 2005-11-01
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/11336/94346
Alvarez, Vera Alejandra; Ianonni, Antonio; Kenny, José; Vázquez, Analía; Influence of twin-screw processing conditions on the mechanical properties of biocomposites; SAGE Publications; Journal of Composite Materials; 39; 22; 1-11-2005; 2023-2038
0021-9983
CONICET Digital
CONICET
url http://hdl.handle.net/11336/94346
identifier_str_mv Alvarez, Vera Alejandra; Ianonni, Antonio; Kenny, José; Vázquez, Analía; Influence of twin-screw processing conditions on the mechanical properties of biocomposites; SAGE Publications; Journal of Composite Materials; 39; 22; 1-11-2005; 2023-2038
0021-9983
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1177/0021998305052025
info:eu-repo/semantics/altIdentifier/url/https://journals.sagepub.com/doi/10.1177/0021998305052025
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv SAGE Publications
publisher.none.fl_str_mv SAGE Publications
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
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score 13.070432

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