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Ageing Behaviour of HTPB Based Rocket Propellant Formulations

Cerri S., Bohn M. A., Menke K., Galfetti L.

Central European Journal of Energetic Materials

2009

Vol. 6, nr 2

149-165

The ageing of HTPB propellant formulations containing nanoAl is investigated. During natural ageing the material undergoes a series of slow physico-chemical degradation reactions. By using accelerated ageing conditions it is possible to simulate the material behaviour at different time-temperature conditions especially focused on the in-service conditions. The mechanical and ageing behaviour of aluminised solid rocket propellants were investigated in terms of uniaxial tensile strength, DMA measurements, impact and friction sensitivity tests, SEM analyses.