Memorias de investigación
Artículos en revistas:
Towards the development of poly(phenylene sulphide) based nanocomposites with enhanced mechanical, electrical and tribological properties.
Año:2012
Áreas de investigación
  • Nanomateriales,
  • Polímeros inorgánicos
Datos
Descripción
Novel poly(phenylene sulphide) (PPS) nanocomposites reinforced with an aminated derivative (PPS-NH2) covalently attached to acid-treated single-walled carbon nanotubes (SWCNTs) were prepared via simple melt-blending technique. Their morphology, viscoelastic behaviour, electrical conductivity, mechanical and tribological properties were investigated. Scanning electron microscopy revealed that the grafting process was effective in uniformly dispersing the SWCNTs within the matrix. The storage and loss moduli as a function of frequency increased with the SWCNT content, tending to a plateau in the low-frequency regime. The electrical conductivity of the nanocomposites was considerably enhanced in the range 0.1?0.5 wt% SWCNTs; electrical and rheological percolation thresholds occurred at similar nanotube concentrations. Mechanical tests demonstrated that with only 1.0 wt% SWCNTs the Young's modulus and tensile strength of the matrix improved by 51 and 37%, respectively, without decrement in toughness, ascribed to a very efficient load transfer. A moderate decrease in the friction coefficient and a 75% reduction in wear rate were found for the abovementioned nanotube loading, indicating that PPS-NH2-g-SWCNTs are good tribological additives for thermoplastic polymers. Based on the promising results obtained in this work, it is expected that these nanofillers will be used to develop high-performance thermoplastic/CNT nanocomposites for structural applications.
Internacional
Si
JCR del ISI
Si
Título de la revista
Materials Chemistry And Physics
ISSN
0254-0584
Factor de impacto JCR
2,234
Información de impacto
Volumen
135
DOI
doi.org/10.1016/j.matchemphys.2012.04.057
Número de revista
2-3
Desde la página
348
Hasta la página
357
Mes
AGOSTO
Ranking
Área: Materials Science, Multidisciplinary; IF (2011): 2,234; Posición: 51 de 232; Cuartil: Q1
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Participantes
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