Characterization of Metal-Oxide Nanoparticles: Synthesis and Dispersion in Polymeric Coatings.
Characterization of Metal-Oxide Nanoparticles: Synthesis
and Dispersion in Polymeric Coatings.
Sung, L. P.; Scierka, S.; Baghai-Anaraki, M.; Ho, D. L.
Nanomaterials for Structural Applications. Materials
Research Society (MRS) Symposium I. Proceedings. Volume
740. 2003, Materials Research Society, Berndt, C.;
Fischer, T. E.; Ovidko, I.; Skandan, G., Editor(s)(s),
I5.4.1-I5.4.6 pp, 2003.
coatings; confocal microscope; depersion; metal-oxide
nanoparticle; polymeric coatings; small angle neutron
scattering; sol-gel synthesis
Applications for using metal-oxide nanoparticles to
optimize UV absorption and to enhance the stiffness,
toughness, and service life of polymeric materials
become advantageous. To achieve the optimal material
properties of those metal-oxide nanoparticle/polymeric
composites, characterization of the nano/microstructure
and dispersion of nanoscale particles from different
process conditions is necessary to relate the key
parameters, which affect the physical and mechanical
properties. In this presentation, characterization of
both TiO2 particles in an acrylic-urethane matrix and
TiO2 nanostructure obtained through sol-gel synthesis
were carried out using microscopy (confocal, AFM) and
small angle neutron scattering (SANS). Results from SANS
experiments measuring the size of the nano-TiO2
particle/cluster and the spatial dispersion in various
nanoparticle/polymer samples under different preparation
conditions will be presented and compared to the results
of microscopy studies.