Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: C1.00092 : Nanoparticle Surface Functionalization for Improved Dispersion in Network Composites
Author:
Incorporation of inorganic nanoparticles into crosslinked
networks has resulted in greater toughening behavior with lower
filler content compared to traditional composites. The
characteristics that provide these desirable qualities are also
responsible for their poor dispersion and, consequently, limiting
wide commercial use. This work aims to demonstrate how excellent
dispersion can be obtained easily and efficiently in different
networks through nanoparticle surface modification. Both
epoxy/Jeffamine and thiol-ene based networks were examined with
differing molecular weight and chemical functionality tethers.
The aggregation behavior of nanocomposite samples were monitored
optically and using TEM. Thermomechanical properties were studied
using DSC, DMA and MTS. The Tg was dependent on both nanoparticle
incorporation and functionality. Toughening was observed in some,
but not all, cases.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.C1.92
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