AN IMPROVED METALLIZED NITRAMINE BASED COMPOSITE MODIFIED DOUBLE BASE ROCKET PROPELLANT AND A PROCESS FOR PREPARATION THEREOF

摘要

This invention relates to a process for preparing an improved metallised nitramine based composite modified double base rocket propellant formulation comprising in the steps of mixing 25-35% Spheroidal Nitro-Cellulose (SNC) with 30-40% desensitized Nitro glycerine (NG) in a mixer for 10 to 20 minutes to obtain slurry, adding 1-8% Ammonium Perchlorate (AP) to the slurry obtained by step (a) at 25+ 2°C and mixing for 5-10 minutes, add metal fuels as herein described to slurry obtained from step (b) and mixing for 5-10 minutes at 25+ 2°C, adding 8-15% of energetic component to slurry obtained from step ( c), adding 0.5-5% ballistic modifier to the step ( d) and continued mixing for 10-20 minutes without vacuum and for 40-60 minutes under vacuum of 5-10 mm of Hg at 25+ 2°C, casting the slurry obtained from step (e) in a mould under vacuum of 2-5 mm and releasing the vacuum after casting is completed, transferring cast mould obtained by step (f) to a water jacketed oven at 50+ 2°C and curing as herein described.