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http://hdl.handle.net/10773/5837
Título: | Crystallization behaviour of new poly(tetramethyleneterephthalamide) nanocomposites containing SiO2 fillers with distinct morphologies |
Autor: | Esteves, Ana Catarina C. Barros-Timmons, Ana M. Martins, J. A. Zhang, W. Cruz-Pinto, José Trindade, Tito |
Palavras-chave: | A. Polymer–matrix composites (PMCs) A. Nano-structures B. Thermal properties D. Thermal analysis |
Data: | Jan-2005 |
Editora: | Elsevier |
Resumo: | 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. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/5837 |
ISSN: | 1359-8368 |
Aparece nas coleções: | DQ - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Composites B Eng 36 (2005) 51–59.pdf | 244.75 kB | Adobe PDF |
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