TY - JOUR
T1 - Crystallization behavior of new poly(tetramethyleneterephthalamide) nanocomposites containing SiO2 fillers with distinct morphologies
AU - Carvalho Esteves, de, A.C.
AU - Barros-Timmons, A.M.M.V.
AU - Martins, J.A.
AU - Zhang, Weidong
AU - Cruz-Pinto, J.J.
AU - Trindade, T.
PY - 2005
Y1 - 2005
N2 - 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.
AB - 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.
U2 - 10.1016/j.compositesb.2004.04.005
DO - 10.1016/j.compositesb.2004.04.005
M3 - Article
VL - 36
SP - 51
EP - 59
JO - Composites. Part B: Engineering
JF - Composites. Part B: Engineering
SN - 1359-8368
IS - 1
ER -