Trinitride and synthesis method thereof, and application thereof as heat-resisting initiating explosive

Abstract

The invention proposes a trinitride and a synthesis method thereof, and application thereof as a heat-resisting initiating explosive. The chemical name of the trinitride is azide cadmium, the molecular formula is Cd(N3)2, the trinitride reacts through a cadmium nitrate solution and a sodium azide solution under the conditions of required reaction temperature, material ratio, charging sequence, reaction time and pH value of a reaction solution, so as to obtain the azide cadmium. The performance of the azide cadmium is subjected to comprehensive assessment by a test. The impact sensitivity of carbonic anhydrase (CA) is equivalent to that of lead azide while the friction sensitivity and the static-electric sensitivity are more insensitive than those of the lead azide; the decomposition peak temperature of the CA is higher than that of the lead azide, and achieves 334-370 DEG C; the explosion temperature can be up to 417-426 DEG C; the initiating power of the CA is much stronger than that of the lead azide. Thus, the CA can be applied to heat-resisting detonators and various miniature detonators instead of the lead azide.

Description

technical field [0001] The invention relates to the technical field of pyrotechnics, in particular to an azide compound, a synthesis method thereof, and an application as a high-temperature-resistant priming charge. Background technique [0002] In recent years, the use environment of pyrotechnics is getting worse and worse, whether it is for civilian use or military use. According to the analysis of environmental effects, the extreme service environments encountered by pyrotechnics mainly include complex electromagnetic interference environments, harsh mechanical environments, and natural climates such as extreme high temperature and high humidity. When pyrotechnics are in service under such extreme electromagnetic, force, temperature, humidity and other stresses, their performance may be changed and damaged, so that they may malfunction or fail to function. The primary explosive is the key energetic material of pyrotechnics, it is the energy source for reliable action of ...

AI Technical Summary

Problems solved by technology

[0010] It can be seen from the above table that BNCP and LA have the best temperature resistance, but the practical application of these two types of pyrotechnics shows that they still cannot pass the high temperature test at 250°C for 6 hours

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