Abstract
Recently explored solid propellant technologies are surveyed, focussing on the gains in tactical, strategic and space applications.
(1) Ultra-fine ammonium perchlorate and aluminum powder made it possible to improve processability, higher filler loading and to lead to higher burning rates.
(2) Hydroxyl-terminated polybutadiene (HTPB) which is synthesized by means of anion polymerization, promises higher filler content, improvement in mechanical properties, aging characteristics and reproducibility with the combination of isophorone diisocyanate as a chain-extending agent.
(3) Propellants for tactical missile application and prevention of satellite system contamination are being investigated, using nitramine oxidizer, HMX and RDX, by which minimum exhaust smoke and low infra-red signature will be expected.
(4) Micron-size plastisol nitrocellulose may successfully contribute to better processability, higher safety and performance by displaceing nitroglycerine with any other nitroplasticizer.
