Preliminary results of the particle packing density theory for improving the theoretical density of composite propellant Available to Purchase

The performance of the propellant depends on its energy density, which is equal to the density of the propellant multiplied by the energy of the propellant. The actual density of composite propellant can be determined by the Archimedes Principle. And the present theoretical density of composite propellant is calculated by the assumption their component is the same phase and the mixing is homogeneous. But, the apparent density (actual density divided by theoretical density) still more significant low than 100%, which means the actual density more significant difference from the theoretical density. This paper proposed the sphere packing density theory was added to improve the calculation theoretical density of composite propellant. This method produced the result of apparent density a better value close to 100%. The improvement of the theoretical calculation method for composite propellant density can be used as a reference in making a composite propellant formulation design, checking the homogeneity of the composition mixture, and improving the propellant process method.