Flammability Studies of Polymer Layered Silicate Nanocomposites.
Flammability Studies of Polymer Layered Silicate
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
technology transfer; education; flammability;
nanocomposites; thermal degradation; silicate; heat
release rate; cone calorimeters; char formation
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