THE INTERRELATION BETWEEN THE THERMAL-DECOMPOSITION OF LEAD SALT AND THE PLATONIZATION MECHANISM OF DOUBLE-BASE PROPELLANTS

The effects of carbon black, cupric adipate and RDX on the thermal dec omposition behaviour of lead flake in double-base system are investiga ted by DSC measurement. The results show that the thermal decompositio n peak of lead flake decomposition shifts to lower temperature with th e addition of carbon black, cupric adipate and RDX, and the exotherm h eat of lead flake increases with the addition of carbon black and RDX. DSC results are compared with the burning characteristics of practica l plateau propellants, the chemical reactions involving lead salts nea r the burning surface are assumed. The mechanism of the effects of bal listic modifiers and RDX on the phenomenon of platonization are discus sed.