Influence of nano-/micro-powder filler on properties of propellant slurry

To get high performance solid propellants, nano-or micro-particles are often introduced in the components of the propellants. Many superfine particles with various particle diameter, varieties, mixture and coated surface have been employed to study the influence on viscosity, dispersion, impact and friction sensitivity of the propellant slurry. The results indicate that, the viscosity of slurry increases while the superfine particle diameter decreases; the viscosity of slurry is obviously influenced by the variety of particle; superfine AP has the most remarkable influence on the viscosity of the slurry; viscosity, impact and friction sensitivity and dispersion of slurry are remarkably improved after particle surface coated properly.