Ignition Characteristics of Ti/Teflon Pyrolants: Safety Igniter with Partition

Abstract

By using partitions in smoke generators, luminous flame agents or other pyrotechnic agents, the vapor and sublimated materials are confined in a chamber. Titanium (Ti), polytetrafluoroethylene (Teflon), and Viton pyrolants (TTV), which generate high temperature products, can be used in a partition type igniter. The ignition delay time, t ig , decreased with the increase of the concentration of Ti, x(Ti), and also the physical ignition delay time, t p , decreased with the increase of x(Ti). On the other hand the chemical ignition delay time, t c , remained unchanged in the range of x(Ti) from 0.4 to 0.7. As t p of TTV pyrolants is larger than t c , the ignition delay time is dominated by physical processes.