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|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.
|keywords: ||A. Polymer–matrix composites (PMCs)|
B. Thermal properties
D. Thermal analysis
|issue date: ||Jan-2005|
|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.|
|source: ||Composites Part B: engineering|
|appears in collections||DQ - Artigos|
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