• English
    • español
  • español 
    • English
    • español
  • Login
Ver ítem 
  •   DSpace Principal
  • 2.- Investigación
  • Artículos
  • Ver ítem
  •   DSpace Principal
  • 2.- Investigación
  • Artículos
  • Ver ítem
JavaScript is disabled for your browser. Some features of this site may not work without it.

Graphene oxide versus graphene for optimisation of PMMA bone cement for orthopaedic applications

Thumbnail
Ver/
IIT-17-046A.pdf (1.636Mb)
Fecha
2017-08-01
Autor
Paz Jiménez, Eva
Forriol Campos, Francisco Luis
del Real Romero, Juan Carlos
Dunne, Nicholas
Estado
info:eu-repo/semantics/publishedVersion
Metadatos
Mostrar el registro completo del ítem
Mostrar METS del ítem
Ver registro en CKH

Refworks Export

Resumen
 
 
Graphene (G) and graphene oxide (GO) nano-sized powders with loadings ranging from 0.1 to 1.0 wt were investigated as reinforced agents for polymethyl methacrylate (PMMA) bone cements. The mechanical properties (i.e. bend strength, bend modulus, compression strength, fracture toughness and fatigue performance) and the thermal properties (i.e. maximum temperature, setting time, curing heat and residual monomer) of the resultant nanocomposites were characterised. The mechanical performance of G-PMMA and GO-PMMA bone cements has been improved at low loadings (< 0.25 wt), especially the fracture toughness and fatigue performance. These improvements were attributed to the fact that the G and GO induced deviations in the crack fronts and hampered crack propagation. The high functionalisation of GO compared with G resulted in higher enhancements because it facilitated the creation of a stronger interfacial adhesion between the GO and PMMA. The use of loadings < 0.25 wt showed a detriment in the mechanical performance as consequence of the formation of agglomerates as well as to an increase in the porosity. The increase in the residual monomer and the decrease in the curing heat, observed with the increase in the level of G and GO added, suggests that such materials retard and inhibit the curing reaction at high levels of load by interfering in the radical reaction.
 
URI
https:doi.org10.1016j.msec.2017.03.269
Graphene oxide versus graphene for optimisation of PMMA bone cement for orthopaedic applications
Tipo de Actividad
Artículos en revistas
ISSN
0928-4931
Materias/ categorías / ODS
Instituto de Investigación Tecnológica (IIT)
Palabras Clave

PMMA bone cement; Graphene; Mechanical properties; Fatigue properties; Fracture toughness
Colecciones
  • Artículos

Repositorio de la Universidad Pontificia Comillas copyright © 2015  Desarrollado con DSpace Software
Contacto | Sugerencias
 

 

Búsqueda semántica (CKH Explorer)


Listar

Todo DSpaceComunidades & ColeccionesPor fecha de publicaciónAutoresTítulosMateriasPor DirectorPor tipoEsta colecciónPor fecha de publicaciónAutoresTítulosMateriasPor DirectorPor tipo

Mi cuenta

AccederRegistro

Repositorio de la Universidad Pontificia Comillas copyright © 2015  Desarrollado con DSpace Software
Contacto | Sugerencias