Nanocomposites with shape memory behavior based on a segmented polyurethane and magnetic nanostructures

Shape-memory composites based on a commercial segmented polyurethane and magnetite (Fe⁠3O⁠4) nanoparticles(NPs) were prepared by a simple suspension casting method. The properties of the resulting nanocomposites,containing 1 to 10 nominal wt.% magnetic particles, were evaluated by thermogravimetric...

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Detalles Bibliográficos
Autores principales:	Soto, Guillermo Daniel, Meiorin, Cintia, Actis, Daniel Guillermo, Mendoza Zélis, Pedro, Mosiewicki, Mirna Alejandra, Marcovich, Norma Esther
Formato:	Articulo Preprint
Lenguaje:	Inglés
Publicado:	2018
Materias:	Física Polymeric nanocomposites Shape memory behavior Magnetic nanostructures Indirect triggering method
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/101695 https://ri.conicet.gov.ar/11336/44117
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-101695
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Física Polymeric nanocomposites Shape memory behavior Magnetic nanostructures Indirect triggering method
spellingShingle	Física Polymeric nanocomposites Shape memory behavior Magnetic nanostructures Indirect triggering method Soto, Guillermo Daniel Meiorin, Cintia Actis, Daniel Guillermo Mendoza Zélis, Pedro Mosiewicki, Mirna Alejandra Marcovich, Norma Esther Nanocomposites with shape memory behavior based on a segmented polyurethane and magnetic nanostructures
topic_facet	Física Polymeric nanocomposites Shape memory behavior Magnetic nanostructures Indirect triggering method
description	Shape-memory composites based on a commercial segmented polyurethane and magnetite (Fe⁠3O⁠4) nanoparticles(NPs) were prepared by a simple suspension casting method. The properties of the resulting nanocomposites,containing 1 to 10 nominal wt.% magnetic particles, were evaluated by thermogravimetric tests, contact anglemeasurements, differential scanning calorimetry, infrared and X-ray spectroscopy, static and thermal cyclic tensiletests, dynamic mechanical analysis and experiments of alternating-magnetic-field heating. It was found thatmost of the suspended NPs could be successfully incorporated into the polyurethane matrix, and thus compositesamples with up to 7 wt.% actual concentration were obtained. On the other hand, the incorporation of magnetitenanoparticles to the shape memory polyurethane did not significantly affect most of the matrix properties,including its shape memory behavior, while added magnetic response to the nanocomposites. Thus, nanocompositeswere able to increase their temperature when exposed to an alternating magnetic field, which allowedthem to recover their original shape quickly by an indirect triggering method.
format	Articulo Preprint
author	Soto, Guillermo Daniel Meiorin, Cintia Actis, Daniel Guillermo Mendoza Zélis, Pedro Mosiewicki, Mirna Alejandra Marcovich, Norma Esther
author_facet	Soto, Guillermo Daniel Meiorin, Cintia Actis, Daniel Guillermo Mendoza Zélis, Pedro Mosiewicki, Mirna Alejandra Marcovich, Norma Esther
author_sort	Soto, Guillermo Daniel
title	Nanocomposites with shape memory behavior based on a segmented polyurethane and magnetic nanostructures
title_short	Nanocomposites with shape memory behavior based on a segmented polyurethane and magnetic nanostructures
title_full	Nanocomposites with shape memory behavior based on a segmented polyurethane and magnetic nanostructures
title_fullStr	Nanocomposites with shape memory behavior based on a segmented polyurethane and magnetic nanostructures
title_full_unstemmed	Nanocomposites with shape memory behavior based on a segmented polyurethane and magnetic nanostructures
title_sort	nanocomposites with shape memory behavior based on a segmented polyurethane and magnetic nanostructures
publishDate	2018
url	http://sedici.unlp.edu.ar/handle/10915/101695 https://ri.conicet.gov.ar/11336/44117
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Nanocomposites with shape memory behavior based on a segmented polyurethane and magnetic nanostructures

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