Memorias de investigación
Artículos en revistas:
Rheological and tribological properties of poly(phenylene sulphide) and poly(ether ether ketone) composites incorporating carbon nanotubes and inorganic nanoparticles: A comparative study.
Año:2012
Áreas de investigación
  • Nanomateriales,
  • Polímeros inorgánicos
Datos
Descripción
The rheological and tribological properties of single-walled carbon nanotube (SWCNT)-reinforced poly(phenylene sulphide) (PPS) and poly(ether ether ketone) (PEEK) nanocomposites prepared via melt-extrusion were investigated. The effectiveness of employing a dual-nanofiller strategy combining polyetherimide (PEI)-wrapped SWCNTs with inorganic fullerene-like tungsten disulfide (IF-WS2) nanoparticles for property enhancement of the resulting hybrid composites was evaluated. Viscoelastic measurements revealed that the complex viscosity ?, storage modulus G?, and loss modulus G? increased with SWCNT content. In the low-frequency region, G? and G? became almost independent of frequency at higher SWCNT loadings, suggesting a transition from liquid-like to solid-like behavior. The incorporation of increasing IF-WS2 contents led to a progressive drop in ? and G? due to a lubricant effect. PEEK nanocomposites showed lower percolation threshold than those based on PPS, ascribed to an improved SWCNT dispersion due to the higher affinity between PEI and PEEK. The SWCNTs significantly lowered the wear rate but only slightly reduced the coefficient of friction. Composites with both nanofillers exhibited improved wear behavior, attributed to the outstanding tribological properties of these nanoparticles and a synergistic reinforcement effect. The combination of SWCNTs with IF-WS2 is a promising route for improving the tribological and rheological performance of thermoplastic nanocomposites.
Internacional
Si
JCR del ISI
Si
Título de la revista
Journal of Physical Chemistry B
ISSN
1520-6106
Factor de impacto JCR
3,696
Información de impacto
Volumen
116
DOI
doi.org/10.1021/jp3035314
Número de revista
27
Desde la página
7959
Hasta la página
7969
Mes
JULIO
Ranking
Área: Chemistry, Physical; IF (2011): 3,696; Posición: 32 de 134; Cuartil: Q1
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Ana M Díez-Pascual Instituto de Ciencia y Tecnología de Polímeros (CSIC)
  • Autor: Mohammed Naffakh Cherradi-Hadi UPM
  • Autor: Carlos Marco Instituto de Ciencia y Tecnología de Polímeros (CSIC)
  • Autor: Garry Ellis Instituto de Ciencia y Tecnología de Polímeros (CSIC)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Bioingeniería y Materiales (BIO-MAT)
  • Departamento: Ingeniería y Ciencia de los Materiales