Characterization of nanocellulose- reinforced shape memory polyurethanes
- Autores
- Auad, María L.; Contos, Vasili S.; Nutt, Steve R.; Aranguren, Mirta Ines; Marcovich, Norma Esther
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Background: Shape memory polymers are capable of fixing a transient shape and of recovering their original dimensions by the application of an external stimulus. Their major drawback is their low stiffness compared to smart materials based on metals and ceramics. To overcome this disadvantage, nanocellulose was utilized as reinforcement. Results: Composites were prepared by casting stable nanocellulose/ segmented polyurethane suspensions. The heat of melting of the polyurethane soft segment phase increased on cellulose addition. Composites showed higher tensile modulus and strength than unfilled films (53% modulus increase at 1 wt% nanocellulose), with higher elongation at break. Creep deformation decreased as cellulose concentration increased (36% decrease in 60-minute creep by addition of 1 wt% nanocellulose). The nanocomposites displayed shape memory properties equivalent to those of the neat polyurethane, with recoveries of the order of 95% (referred to second and further cycles). Conclusions: It is possible to markedly improve the rigidity of shape memory polymers by adding small amounts of well-dispersed nanocellulose. However, this improvement did not have substantial effects on the material shape fixity or recovery. Shape memory behavior seems to continue to be controlled by the polymer properties.
Fil: Auad, María L.. Auburn University; Estados Unidos
Fil: Contos, Vasili S.. University Of Southern California; Estados Unidos
Fil: Nutt, Steve R.. University Of Southern California; Estados Unidos
Fil: Aranguren, Mirta Ines. 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: Marcovich, Norma Esther. 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 - Materia
-
Cellulose Crystals
Nanocomposites
Shape Memory Polyurethanes - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/67760
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Characterization of nanocellulose- reinforced shape memory polyurethanesAuad, María L.Contos, Vasili S.Nutt, Steve R.Aranguren, Mirta InesMarcovich, Norma EstherCellulose CrystalsNanocompositesShape Memory Polyurethaneshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2https://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Background: Shape memory polymers are capable of fixing a transient shape and of recovering their original dimensions by the application of an external stimulus. Their major drawback is their low stiffness compared to smart materials based on metals and ceramics. To overcome this disadvantage, nanocellulose was utilized as reinforcement. Results: Composites were prepared by casting stable nanocellulose/ segmented polyurethane suspensions. The heat of melting of the polyurethane soft segment phase increased on cellulose addition. Composites showed higher tensile modulus and strength than unfilled films (53% modulus increase at 1 wt% nanocellulose), with higher elongation at break. Creep deformation decreased as cellulose concentration increased (36% decrease in 60-minute creep by addition of 1 wt% nanocellulose). The nanocomposites displayed shape memory properties equivalent to those of the neat polyurethane, with recoveries of the order of 95% (referred to second and further cycles). Conclusions: It is possible to markedly improve the rigidity of shape memory polymers by adding small amounts of well-dispersed nanocellulose. However, this improvement did not have substantial effects on the material shape fixity or recovery. Shape memory behavior seems to continue to be controlled by the polymer properties.Fil: Auad, María L.. Auburn University; Estados UnidosFil: Contos, Vasili S.. University Of Southern California; Estados UnidosFil: Nutt, Steve R.. University Of Southern California; Estados UnidosFil: Aranguren, Mirta Ines. 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: Marcovich, Norma Esther. 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; ArgentinaJohn Wiley & Sons Ltd2008-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/67760Auad, María L.; Contos, Vasili S.; Nutt, Steve R.; Aranguren, Mirta Ines; Marcovich, Norma Esther; Characterization of nanocellulose- reinforced shape memory polyurethanes; John Wiley & Sons Ltd; Polymer International; 57; 4; 4-2008; 651-6590959-8103CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/pi.2394info:eu-repo/semantics/altIdentifier/doi/10.1002/pi.2394info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:07:07Zoai:ri.conicet.gov.ar:11336/67760instacron: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:34982025-09-03 10:07:07.842CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Characterization of nanocellulose- reinforced shape memory polyurethanes |
title |
Characterization of nanocellulose- reinforced shape memory polyurethanes |
spellingShingle |
Characterization of nanocellulose- reinforced shape memory polyurethanes Auad, María L. Cellulose Crystals Nanocomposites Shape Memory Polyurethanes |
title_short |
Characterization of nanocellulose- reinforced shape memory polyurethanes |
title_full |
Characterization of nanocellulose- reinforced shape memory polyurethanes |
title_fullStr |
Characterization of nanocellulose- reinforced shape memory polyurethanes |
title_full_unstemmed |
Characterization of nanocellulose- reinforced shape memory polyurethanes |
title_sort |
Characterization of nanocellulose- reinforced shape memory polyurethanes |
dc.creator.none.fl_str_mv |
Auad, María L. Contos, Vasili S. Nutt, Steve R. Aranguren, Mirta Ines Marcovich, Norma Esther |
author |
Auad, María L. |
author_facet |
Auad, María L. Contos, Vasili S. Nutt, Steve R. Aranguren, Mirta Ines Marcovich, Norma Esther |
author_role |
author |
author2 |
Contos, Vasili S. Nutt, Steve R. Aranguren, Mirta Ines Marcovich, Norma Esther |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Cellulose Crystals Nanocomposites Shape Memory Polyurethanes |
topic |
Cellulose Crystals Nanocomposites Shape Memory Polyurethanes |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
Background: Shape memory polymers are capable of fixing a transient shape and of recovering their original dimensions by the application of an external stimulus. Their major drawback is their low stiffness compared to smart materials based on metals and ceramics. To overcome this disadvantage, nanocellulose was utilized as reinforcement. Results: Composites were prepared by casting stable nanocellulose/ segmented polyurethane suspensions. The heat of melting of the polyurethane soft segment phase increased on cellulose addition. Composites showed higher tensile modulus and strength than unfilled films (53% modulus increase at 1 wt% nanocellulose), with higher elongation at break. Creep deformation decreased as cellulose concentration increased (36% decrease in 60-minute creep by addition of 1 wt% nanocellulose). The nanocomposites displayed shape memory properties equivalent to those of the neat polyurethane, with recoveries of the order of 95% (referred to second and further cycles). Conclusions: It is possible to markedly improve the rigidity of shape memory polymers by adding small amounts of well-dispersed nanocellulose. However, this improvement did not have substantial effects on the material shape fixity or recovery. Shape memory behavior seems to continue to be controlled by the polymer properties. Fil: Auad, María L.. Auburn University; Estados Unidos Fil: Contos, Vasili S.. University Of Southern California; Estados Unidos Fil: Nutt, Steve R.. University Of Southern California; Estados Unidos Fil: Aranguren, Mirta Ines. 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: Marcovich, Norma Esther. 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 |
description |
Background: Shape memory polymers are capable of fixing a transient shape and of recovering their original dimensions by the application of an external stimulus. Their major drawback is their low stiffness compared to smart materials based on metals and ceramics. To overcome this disadvantage, nanocellulose was utilized as reinforcement. Results: Composites were prepared by casting stable nanocellulose/ segmented polyurethane suspensions. The heat of melting of the polyurethane soft segment phase increased on cellulose addition. Composites showed higher tensile modulus and strength than unfilled films (53% modulus increase at 1 wt% nanocellulose), with higher elongation at break. Creep deformation decreased as cellulose concentration increased (36% decrease in 60-minute creep by addition of 1 wt% nanocellulose). The nanocomposites displayed shape memory properties equivalent to those of the neat polyurethane, with recoveries of the order of 95% (referred to second and further cycles). Conclusions: It is possible to markedly improve the rigidity of shape memory polymers by adding small amounts of well-dispersed nanocellulose. However, this improvement did not have substantial effects on the material shape fixity or recovery. Shape memory behavior seems to continue to be controlled by the polymer properties. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-04 |
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/11336/67760 Auad, María L.; Contos, Vasili S.; Nutt, Steve R.; Aranguren, Mirta Ines; Marcovich, Norma Esther; Characterization of nanocellulose- reinforced shape memory polyurethanes; John Wiley & Sons Ltd; Polymer International; 57; 4; 4-2008; 651-659 0959-8103 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/67760 |
identifier_str_mv |
Auad, María L.; Contos, Vasili S.; Nutt, Steve R.; Aranguren, Mirta Ines; Marcovich, Norma Esther; Characterization of nanocellulose- reinforced shape memory polyurethanes; John Wiley & Sons Ltd; Polymer International; 57; 4; 4-2008; 651-659 0959-8103 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://onlinelibrary.wiley.com/doi/abs/10.1002/pi.2394 info:eu-repo/semantics/altIdentifier/doi/10.1002/pi.2394 |
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 application/pdf |
dc.publisher.none.fl_str_mv |
John Wiley & Sons Ltd |
publisher.none.fl_str_mv |
John Wiley & Sons Ltd |
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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1842269990532677632 |
score |
13.13397 |