Polyamide-6/Silica Nanocomposites (pages 724–729)
M. García, J. García-Turiel, B. Norder, F. Chavez, B.J. Kooi, W.E. van Zyl, H. Verweij and D.H.A. Blank
Article first published online: 8 SEP 2004 | DOI: 10.1002/adem.200400059
New strategies were developed which incorporate silica nanoparticles (<30 nm) into a nylon-6 matrix, to form technically interesting hybrid nanocomposites with improved stiffness. Silica particles retained their original shape and size (10–30 nm), are mono-dispersed and mainly non-agglomerated as shown by TEM. Mechanical tests on the composites were conducted and showed that with less than 0.1 volume fraction of silica addition the E-modulus of the nanocomposite increased when compared with neat nylon-6. Furthermore, the rheological properties of the nanocomposites were determined. The viscosity showed a very dependant behavior at different filler loadings. The viscosity of highly filled samples was mainly caused by interactions between particles.