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 Crystallization behaviour of new poly(tetramethyleneterephthalamide) nanocomposites containing SiO2 fillers with distinct morphologies
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/5837

title: Crystallization behaviour of new poly(tetramethyleneterephthalamide) nanocomposites containing SiO2 fillers with distinct morphologies
authors: Esteves, Ana Catarina C.
Barros-Timmons, Ana M.
Martins, J. A.
Zhang, W.
Cruz-Pinto, José
Trindade, Tito
keywords: A. Polymer–matrix composites (PMCs)
A. Nano-structures
B. Thermal properties
D. Thermal analysis
issue date: Jan-2005
publisher: Elsevier
abstract: Polyamide-based nanocomposites containing surface-modified SiO2 nanofillers with different morphologies were prepared by in situ polymerisation. The nanocomposites microstructure was investigated by scanning electron microscopy, which showed a high degree of dispersion of the fillers. The isothermal crystallization kinetics, recorded with a differential scanning calorimeter, has shown a strong influence of the nanofillers morphology on the poly(tetramethyleneterephthalamide) crystallization behaviour. The strong nucleating effect of the inorganic substrate is interpreted as the combined result of a lower activation energy for the primary nucleation and a higher activation energy for the transport of chain stems to the growing lamellae.
URI: http://hdl.handle.net/10773/5837
ISSN: 1359-8368
source: Composites Part B: engineering
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