Flammability Properties of Polymer-Layered-Silicate Nanocomposites, Polypropylene and Polystyrene Nanocomposites.
Flammability Properties of Polymer-Layered-Silicate
Nanocomposites, Polypropylene and Polystyrene
Gilman, J. W.; Jackson, C. L.; Morgan, A. B.; Harris, R.
H., Jr.; Manias, E.; Giannelis, E. P.; Wuthenow, M.;
Hilton, D.; Phillips, S. H.
Chemistry of Materials, Vol. 12, No. 7, 1866-1873, July
Sponsor:Federal Aviation Administration, Washington, DC
nanocomposites; polypropylene; polystyrene;
flammability; thermal stability; flammability
measurements; cone calorimeters
Our continuing study of the mechanism of flammability
reduction of polymer-layered-silicate nanocomposites has
yielded results for polypropylene-graft-maleic anhydride
and polystyrene-layered-silicate nanocomposites using
montmorillonite and fluorohectorite. Cone calorimetry
was used to measure the heat release rate and other
flammability properties of the nanocomposites, under
well-controlled combustion conditions. Bath the
polymer-layered-silicate nanocompasites and the
combustion residues were studied by transmission
electron microscopy and X-ray diffraction. We have found
evidence for a common mechanism of flammability
reduction. We also found that the type of layered
silicate, nanodispersion, and processing degradation
have an influence on the flammability reduction.