The manufacture of these multi-layer Nano-Structured Energetic Particles using a cost effective, flexible, controllable, scalable and green technology led to development of a novel micro-encapsulation technique that involved a circulating supercritical fluidized bed. The technique was demonstrated by microencapsulation of AN by HTPB.
Supercritical fluids provide a unique processing medium for high volume micron and nano-scale manufacture due to tunable solvation and favorable transport properties, resulting in defect-free nano-scale thin-film formation with minimal surface roughness.
Supercritical Fluids have been used in energetic materials development, comminution, and re-processing for over three decades. A judicious use of supercritical fluid aided materials processing techniques allow tailored manufacture of particles with desired particle size, particle size distributions, layer-by-layer particle structuring, efficient compounding of formulations, and precise component ratios. Compounding of the various layers in an N-SEP can be performed, allowing the intimate mixtures of components such as single or mixed oxidizers, with burn rate modifiers, and ingredients
for reduction and elimination of combustion instabilities.
N-SEP Propellant Features:
PMBAC N-SEPs can:
PMB Aerospace Corporation
333 S. Grand Ave Suite 3590
Los Angeles, CA 90071