Titanium hydride/potassium perchlorate (THPP) is
a pressure producing pyrotechnic composition consisting of a mixture of titanium
dihydride and potassium perchlorate with a small percentage of a Viton binder.
The initial phase of the study focused upon chemical analysis of THPP downloaded
from parts ranging up to 25 years in age. The DSC curves were too erratic
for kinetic analysis; however, high resolution TG curves for the THPP samples
revealed a significant difference in the temperature at which the aged materials
began displaying mass loss. Isothermal DTA and variable heating rate TG kinetic
analysis were employed to determine the activation energy of the THPP.