Introduction of solid propellant
Solid propellant is an energetic composite material with specific properties. It is a power source for various solid engines of missiles and space vehicles. It is a material for power sources of solid rocket engines. The role can be generally divided into double-based propellants, composite propellants and modified double-based propellants. Double-base propellant is a homogeneous mixture of nitrocellulose and nitroglycerin. Composite propellant is a heterogeneous mixture of high polymer as matrix, mixed with oxidant, metal fuel and other components. The double-base propellant is added with an oxidant and a metal fuel to form a modified double-base propellant.