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Flammability Properties of Polymer-Layered-Silicate Nanocomposites, Polypropylene and Polystyrene Nanocomposites.


pdf icon Flammability Properties of Polymer-Layered-Silicate Nanocomposites, Polypropylene and Polystyrene Nanocomposites. (1688 K)
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 17, 2000.

Sponsor:

Federal Aviation Administration, Washington, DC

Keywords:

nanocomposites; polypropylene; polystyrene; flammability; thermal stability; flammability measurements; cone calorimeters

Abstract:

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.