Improvement of Composite Propellants Energy Using Explosive Materials


  • Amjad O. Saeed Advanced Industries Group, Sabighat Industrial Complex, Gama Technical Center, Sudan
  • Nagmeldin M. Elamin Defence Industries System, Advanced Industries Group, Sudan



Composite propellant, exothermic reaction, hexogen, specific impulse, energy


Composite propellants are energetic materials have ability to ignite, burn fast and cause several simultaneous exothermic chemical reactions which produce huge amounts of gases under high pressures and temperatures which can spread spontaneously. 1n the present study, the explosive material hexogen (Cyclo tri-methylene tri-nitramine) was used to improve the performance properties of composite propellants, especially the specific impulse. For several formulations of hexogen at different added percentages, the specific impulse was calculated using thermodynamic calculations program of composite propellants. The results given were compared with those formulations not including hexogen. It was seen that; hexogen caused a significant positive effect in the specific impulse. Accordingly, the energy of composite propellant was improved positively in the samples containing hexogen till 40% of the oxidizer ratio. Also, it was noticed that the specific impulse began to decrease gradually for the oxidizers containing more than 40% of hexogen which caused in a decreasing of composite propellant energy. Finally, it was concluded that, the use of some amount of explosive materials like hexogen can improve composite propellants energy successfully.


Shteinberg, A.S., Fast reactions in energetic materials: high-temperature decomposition of rocket propellants and explosives. 2008: Springer Science & Business Media.

Akhavan, J., The chemistry of explosives. 2011: Royal Society of Chemistry.

Sutton, G.P. Rocket propulsion elements-An introduction to the engineering of rockets. New York, 1992.

Desilets, S., S. Cote. Chemical bond between stabilizers and HTPB binders in propellants. Propellants, Explosives, Pyrotechnics, 2000. 25(4): 186-190.

Agrawal, J.P., R. Hodgson, Organic chemistry of explosives. 2007: John Wiley & Sons.

Sutton, G.P., O. Biblarz, Rocket propulsion elements. 2016: John Wiley & Sons.

Hocaoglu, O., F. Pekel, and S. Ozkar. Aging of HTPB/AP-based composite solid propellants, depending on the NCO/OH and triol/diol ratios. Journal of applied polymer science, 2001. 79(6): 959-964.

Kubota, N., Rocket combustion, 1995, Nikkan Kogyo Press, Tokyo.

Pandey, M., S. Jha, R. Kumar, S. Mishra, and R. Jha. The pressure effect study on the burning rate of ammonium nitrate-HTPB-based propellant with the influence catalysts. Journal of thermal analysis and calorimetry, 2012. 107(1): 135-140.




How to Cite

O. Saeed, A. ., & M. Elamin, N. . (2021). Improvement of Composite Propellants Energy Using Explosive Materials. Journal of Karary University for Engineering and Science, 1(2).