The thermal decomposition of triple-base propellants

The thermal decompositions of a double-base propellant (DB), five triple-ba se propellants (TB) and nitroguanidine (NGV) were examined. The kinetic par ameters were evaluated using the ASTM, Kissinger, Rogers-Morris, Freeman-Ca rroll and Borchardt-Daniels methods. The values of the orders of some of th e chemical reactions (n), like some values of activation energies (E-a), do not have any physical meaning, but they represent the manner of propellant decomposition and prove that the mechanism of the reaction changes during the decomposition process. As a result of this fact, differences appear in the evaluated kinetic parameters between various methods.