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Flammability Studies of Polymer Layered Silicate Nanocomposites.


pdf icon Flammability Studies of Polymer Layered Silicate Nanocomposites. (967 K)
Gilman, J. W.; Kashiwagi, T.; Brown, J. E.; Lomakin, S. M.; Giannelis, E. P.; Manias, E.

Materials and Process Affordability Keys to the Future. SAMPE Symposium and Exhibition, 43rd International Proceedings. Volume 43. Book 1 of 2 Books. Society for the Advancement of Material and Process Engineering (SAMPE). May 31-June 4, 1998, Anaheim, CAe, Kliger, H. S.; Rasmussen, B.; Pilato, L. A.; Tolle, T. B., Editor(s)(s), 1053-1066 pp, 1998.

Sponsor:

Federal Aviation Administration, Washington, DC

Keywords:

technology transfer; education; flammability; nanocomposites; thermal degradation; silicate; heat release rate; cone calorimeters; char formation

Abstract:

Polymer layered-silicate (PLS) nanocomposites are materials with unique properties when compared to conventional filled polymers. For example, the mechanical properties of nylon-6 layered-silicate nanocomposite, with silicate mass fraction of only 5%, show excellent improvement over those for the pure nylon-6. The nanocomposite exhibits a 40% higher tensile strength, 68% greater tensile modulus, 60% higher flexural strength, and a 126% increased flexural modulus. The heat distortion temperature (HDT) is increased from 65 deg C to 152 deg C. Previously, we reported on the flammability properties of delaminated nylon-6 layered silicate nanocomposites and intercalated polymer layered-silicate nanocomposites prepared from polystyrene, PS, and polypropylene-graft-maleic anhydride, PP-g-MA. Here, we will briefly review these results and report on our initial studies of the flammability of thermoset PLS nanocomposites: intercalated vinyl ester silicate and intercalated epoxy silicate nanocomposites.