A Novel Melt Cast Composite Booster Formulation Based on DNTF/TNT/GAP-ETPE/Nano-HMX

To obtain the melt cast booster explosive formulation with high energy and low critical detonation diameter,melt cast explosives were designed by 3,4-bis(3-nitrofurazan-4-yl)furoxan (dntf)/2,4,6-trinitrotoluene (tnt)/glycidyl azide polymer-energetic thermoplastic elastomer (gap-etpe)/nano-1,3,5,7-tetranitro-1,3,5,7-tetraazacyclooctane (hmx)/aristowax. furthermore,the impact sensitivity,small scale gap test,rheological properties,propagation reliability,and detonation velocity were measured and analyzed. the results show that when the mass ratio of dntf/tnt/gap-etpe/nano-hmx/aristowax is 34.2/22.8/2/40/1,not only does it indicate excellent rheological property but it has a brilliant safety performance as well. moreover,it can propagate the detonation waves successfully in the groove at 0.7 mm × 0.7 mm. when the charge density in the groove is 1.70 g·cm-3,its detonation velocity can reach 7890 m·s-1. © 2016 shuo yu and hequn li.