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Enhancing the thermomechanical behaviour of poly(phenylene sulphide) based composites via incorporation of covalently grafted carbon nanotubes

Autor Díez-Pascual, Ana M. ; Naffakh, Mohammed
Palabras clave Thermoplastic resin
Carbon nanotubes
Fecha de publicación 2013
Citación Composites Part A: Applied Science and Manufacturing 54: 10- 19 (2013)
ResumenThe thermal and thermomechanical properties of poly(phenylene sulphide) (PPS) based nanocomposites incorporating a polymer derivative covalently anchored onto single-walled carbon nanotubes (SWCNTs) were investigated. The grafted fillers acted as nucleating agents, increasing the crystallization temperature and degree of crystallinity of the matrix. They also enhanced its thermal stability, flame retardancy, glass transition (Tg) and heat deflection temperatures while reduced the coefficient of thermal expansion at temperatures below Tg. A strong rise in the thermal conductivity, Young's modulus and tensile strength was found with increasing filler loading both in the glassy and rubbery states. All these outstanding improvements are ascribed to strong matrix-filler interfacial interactions combined with a compatibilization effect that results in very homogeneous SWCNT dispersion. The results herein offer useful insights towards the development of engineering thermoplastic/CNT nanocomposites for high-temperature applications. © 2013 Elsevier Ltd. All rights reserved.
URI http://hdl.handle.net/10261/99652
Identificadoresdoi: 10.1016/j.compositesa.2013.06.018
issn: 1359-835X
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