Electrostatic accumulation test of initiating explosives

In order to test the electrostatic accumulation of common initiating explosives, the influences of various factors were discussed including temperature, humidity, chute material, length, inclination of flume, quartz mass and size of quartz sand. Results show that the amount of charge increases with the increase of the quartz mass. The electrostatic accumulation is linear relation with the environment temperature and humidity, and exponential relation with the sample size. The smaller the particle size, the more electrostatic accumulation. In addition, the chute material, length and inclination of flume also have a great influence to the electrostatic accumulation. On this basis, the resistivity and electrostatic accumulation of the common initiating explosives such as lead styphnate, lead azide and perchloric acid carbon hydrazide series were tested. Results show that those initiating explosives are high resistivity objects, and the lead styphnate can be accumulated static electrostatic easily. The lead azide with crystal type control agent dextrin and polyvinyl alcohol can be reduced the electrostatic accumulation obviously, and dextrin and polyvinyl alcohol can be used as antistatic agent.