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Pentaerythritol tetranitrate (PETN) is a widely studied high explosive (HE), most commonly used in detonator applications. In this work, we use a spray drying technique to manufacture a new “nano-powder” morphology of PETN. The spray dried PETN is several orders of magnitude smaller in particle size than traditionally prepared PETN powders. The spray dried PETN has a mostly spherical and smooth morphology, while traditional crystalline PETN typically has sharp edges and crystal facets. Small-scale sensitivity tests including drop-weight impact, friction, and electrostatic discharge (ESD) indicate the spray dried PETN is less sensitive than traditionally used forms of PETN powders. We also observed no changes in chemical properties (melt temperature and onset of decomposition) after spray drying, and the material remains in the tetragonal, crystalline phase.

Procesi, ki se izvajajo v kamnolomih, ob uporabi eksplozivnih sredstev predstavljajo tveganje, ki lahko v večji ali manjši meri vplivajo na varnost ter zdravje delavcev in drugih vpletenih oseb. Posledično je zelo pomembno usposabljanje delavcev in drugih ključnih oseb, ki morajo biti seznanjene z vsemi tveganji, ki lahko pri tem delu nastanejo. Pomembno je tudi poznavanje in seznanitev z varno uporabo eksplozivov in z njimi povezanih sredstev s katerimi rokujejo delavci. Prav tako je ključnega pomena, da delavci upoštevajo varnostne ukrepe za preprečevanje tveganj, ki bi ogrožale varnost in zdravje delavcev. Processes carried out in quarries using explosives pose a risk that can affect the safety and health of workers and others involved in these processes. Therefore, it is very important to prepare workers and other relevant persons who must be aware of all the risks that may occur during this work. It is also important that workers know and master the safe handling of explosives and related materials. It is also crucial that workers follow safety measures to avoid risks that would endanger the safety and health of workers.

A prototype of WiFi based wireless blasting system aimed to achieve simple and easy detonation techniques. Since the invention of explosives world has used various detonation techniques, this prototype is developed to further simplify the detonation techniques. The speciality of this detonator is that it can trigger most forms of explosives and can also ignite a controlled fire without any explosive.

Everybody knows TNT, the most widely used explosive material and a universal measure of the destructiveness of explosions. A long history of use and extensive manufacture of toxic TNT leads to the accumulation of these materials in soil and groundwater, which is a significant concern for environmental safety and sustainability. Reliable and cost-efficient technologies for removing or detoxifying TNT from the environment are lacking. Despite the extreme urgency, this remains an outstanding challenge that often goes unnoticed. We report here that highly controlled energy release from explosive molecules can be accomplished rather easily by preparing TNT–perovskite mixtures with a tailored perovskite surface morphology at ambient conditions. These results offer new insight into understanding the sensitivity of high explosives to detonation initiation and enable many novel applications, such as new concepts in harvesting and converting chemical energy, the design of new, improved energetics with tunable characteristics, the development of powerful fuels and miniaturized detonators, and new ways for eliminating toxins from land and water.