Abstract:
The feasibility of aluminium- or magnalium-filled
fluoropolymer Viton B as an open-burn time delay was
investigated. Film samples with a thickness of 245 ± 21 lm
were prepared via a slurry casting process. Fuel filler content
was varied from 20 to 60 mass/%. The films retained the
elastic properties of the parent polymer except that the
elongation at break decreased rapidly with increasing filler
content. Sensitivity tests showed that the films were insensitive
to ignition by friction and impact. EKVI thermodynamic
simulations showed that, for both systems, the
maximum energy output is ca. 8.3 MJ kg-1
. Energy measurements
indicated that the maximum energy output
occurred in the range 30–40 mass/%. Maximum burn rates
of 82 and 40 mm s-1 were achieved using a magnalium and
flake aluminium as fuels, respectively.
