Modified double-base propellants are propellants in which solid oxidizers, high-energy explosives, and metallic fuels are added to the double-base propellant components to improve their energy performance.
The main components include nitrocellulose, nitroglycerin, aluminum powder, inorganic oxidants (such as ammonium perchlorate) and organic nitramine compounds (such as octogen or RDX), as well as stabilizers and combustion catalysts. After the addition of solid fillers, the internal structure of the propellant is similar to that of composite propellants, exhibiting a multiphase interface; therefore, it is also called a composite modified double-base propellant.
