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

Jeffrey W. GilmanNational Institute of Standards and Technology,Catheryn L. JacksonNational Institute of Standards and Technology,Alexander B. MorganNational Institute of Standards and Technology,Richard H. HarrisNational Institute of Standards and Technology,Evangelos ManiasMaterials Science and Engineering Department, Pennsylvania State University, University Park, Pennsylvania 16802Emmanuel P. GiannelisCornell UniversityM WuthenowCornell UniversityDawn HiltonAir Force Research Laboratory,#TAB#Shawn H. PhillipsAir Force Research Laboratory,#TAB#

2000en

ABI

Annotatsiya

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. Both the polymer−layered-silicate nanocomposites 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.

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Identifikatorlar

DOI: 10.1021/cm0001760

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