authors |
Esteves, ACC; Barros-Timmons, AM; Martins, JA; Zhang, W; Cruz-Pinto, J; Trindade, T |
nationality |
International |
journal |
COMPOSITES PART B-ENGINEERING |
author keywords |
polymer-matrix composites (PMCs); nano-structures; thermal properties; thermal analysis |
keywords |
IN-SITU POLYMERIZATION; SILICA NANOCOMPOSITES; COMPOSITE-MATERIALS; THERMAL-STABILITY; NANOPARTICLES |
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. (C) 2004 Elsevier Ltd. All rights reserved. |
publisher |
ELSEVIER SCI LTD |
issn |
1359-8368 |
year published |
2005 |
volume |
36 |
issue |
1 |
beginning page |
51 |
ending page |
59 |
digital object identifier (doi) |
10.1016/j.compositeb.2004.04.005 |
web of science category |
Engineering, Multidisciplinary; Materials Science, Composites |
subject category |
Engineering; Materials Science |
unique article identifier |
WOS:000225216800006
|