Repositorio Institucional
Repositorio Institucional
CONICET Digital
  • Inicio
  • EXPLORAR
    • AUTORES
    • DISCIPLINAS
    • COMUNIDADES
  • Estadísticas
  • Novedades
    • Noticias
    • Boletines
  • Ayuda
    • General
    • Datos de investigación
  • Acerca de
    • CONICET Digital
    • Equipo
    • Red Federal
  • Contacto
JavaScript is disabled for your browser. Some features of this site may not work without it.
  • INFORMACIÓN GENERAL
  • RESUMEN
  • ESTADISTICAS
 
Artículo

Magnetic nanocomposites based on shape memory polyurethanes

Soto, Guillermo DanielIcon ; Meiorin, CintiaIcon ; Actis, Daniel GuillermoIcon ; Mendoza Zélis, PedroIcon ; Moscoso Londoño, OscarIcon ; Muraca, DiegoIcon ; Mosiewicki, Mirna AlejandraIcon ; Marcovich, Norma EstherIcon
Fecha de publicación: 12/2018
Editorial: Pergamon-Elsevier Science Ltd
Revista: European Polymer Journal
ISSN: 0014-3057
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Nano-materiales

Resumen

Shape memory composites based on a commercial segmented polyurethane and magnetite (Fe3O4) nanoparticles (MNPs) were prepared by a simple suspension casting method. The average sizes of individual magnetic particles/clusters were determined by TEM microscopy and corroborated from SAXS patterns. The magnetization properties of selected samples were evaluated using zero field cooling/field cooling (ZFC/FC) measurements and magnetization loops obtained at different temperatures. The results showed that magnetization at high field (20 k Oe) and coercitivity measured at 5 K increase with magnetite content and that all the composite films exhibit superparamagnetic behavior at 300 K. The specific absorption rate (SAR) of the nanocomposites was calculated by experimentally determining both the specific heat capacity and the heating rate of the films exposed to an alternant magnetic field. All nanocomposites were able to increase their temperature when exposed to an alternant magnetic field, although the final temperature reached resulted dependent of the MNPs concentration. What is more, a fast and almost complete recovery of the original shape of the nanocomposites containing more than 3 nominal wt.% MNP was obtained by this remote activation applied to the previously deformed samples.
Palabras clave: Polymeric Nanocomposites , Shape Memory Properties , Magnetic Heating , Indirect Triggering Method
Ver el registro completo
 
Archivos asociados
Thumbnail
 
Tamaño: 1.549Mb
Formato: PDF
.
Descargar
Licencia
info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/81727
DOI: https://doi.org/10.1016/j.eurpolymj.2018.08.046
URL: https://linkinghub.elsevier.com/retrieve/pii/S0014305718310620
Colecciones
Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Soto, Guillermo Daniel; Meiorin, Cintia; Actis, Daniel Guillermo; Mendoza Zélis, Pedro; Moscoso Londoño, Oscar; et al.; Magnetic nanocomposites based on shape memory polyurethanes; Pergamon-Elsevier Science Ltd; European Polymer Journal; 109; 12-2018; 8-15
Compartir
Altmétricas
 

Enviar por e-mail
Separar cada destinatario (hasta 5) con punto y coma.
  • Facebook
  • X Conicet Digital
  • Instagram
  • YouTube
  • Sound Cloud
  • LinkedIn

Los contenidos del CONICET están licenciados bajo Creative Commons Reconocimiento 2.5 Argentina License

https://www.conicet.gov.ar/ - CONICET

Inicio

Explorar

  • Autores
  • Disciplinas
  • Comunidades

Estadísticas

Novedades

  • Noticias
  • Boletines

Ayuda

Acerca de

  • CONICET Digital
  • Equipo
  • Red Federal

Contacto

Godoy Cruz 2290 (C1425FQB) CABA – República Argentina – Tel: +5411 4899-5400 repositorio@conicet.gov.ar
TÉRMINOS Y CONDICIONES