Abstract
Ultra-fine ammonium perchlorate (UFAP, d=0.5-l μm) is directly produced by a new dry method. In order to keep the UFAP from coagulation during storage, various surface modifications of UFAP have been studied. The results indicate that neither single—component antistatic agents (such as 1831, 1631) or single—component moisture-proof materials and assistant-friction materials prevent coalgulation, but surface agents can inhibit coagulation. The influence of using chemical reagents to modify the powder surfaces upon propellant characteristics (burning rates, rheology, etc.) is described.
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