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

摘要

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,tau_(ig),decreased with the increase of the concentration of Ti,zeta (Ti),and also the physical ignition delay time,tau_P,decreased with the increase of zeta(Ti).On the other hand the chemical ignition delay time,tau_c,remained unchanged in the range of zeta(Ti) from 0.4 to 0.7.As tau_p of TTV pyrolants is larger than tau_c,the ignition delay time is dominated by physical processes.