Ammonium perchlorate

Abstract

The invention discloses ammonium perchlorate, belonging to the field of inorganic salt. The technical scheme is as follows: ammonium perchlorate is the key component, ammonium perchlorate is coated by ethylenediamine and KH792, the granularity D4,3 of ammonium perchlorate is 3-7 micrometers, ethylenediamine is 0.1%-0.5%, and KH792 is 0.05%-0.1%; and ethylenediamine is analytically pure. Fine-grained ammonium perchlorate is processed mainly by an airstream pulverization method, for the reason of the characteristics of the technique, more edges and defects exist on the surface of ammonium perchlorate, the ammonium perchlorate granules are easy to collide with each other and generate hot points, and the friction sensitivity of the compound solid propellant is increased. Ethylenediamine and KH792 are used as surface active agents for coating the surface of ammonium perchlorate, thus, the defects on the surface of ammonium perchlorate can be reduced, and the influence on the friction sensitivity of the compound solid propellant is lowered.

Description

Technical field [0001] The invention belongs to the field of inorganic salts, and specifically relates to ammonium perchlorate. Background technique [0002] In order to increase the burning rate of the composite solid propellant formulation, a large amount of fine-grained ammonium perchlorate is added to the formulation. Although this method meets the requirements of the burning rate index, it brings potential safety hazards. Generally, the friction sensitivity of the formulation is very high. . The friction effect in the production process of composite solid propellant is inevitable, the extrusion friction between the blade and the slurry and the pot wall during the mixing process, the friction between the core rod and the solidified powder during the demolding process, the cleaning shovel and the slurry during the slurry cleaning process. The friction between the containers and the friction between the shaping knife and the solidified grains during the shaping process. Theref...

AI Technical Summary

Problems solved by technology

[0002] In order to improve the burning rate of the composite solid propellant formula, a large amount of fine-grained ammonium perchlorate is added to the formula. Although this method meets the requirements of the burning rate index, it brings safety hazards. Usually, the friction sensitivity of the formula is very high

Friction is unavoidable in the production process of composite solid propellants. The extrusion friction between the paddle and the slurry and the pot wall during the mixing process, the friction between the mandrel and the solidified drug during the demoulding process, and the cleaning shovel and the slurry during the slurry cleaning process. The friction between the containers, the friction between the shaping knife and the solidified powder column in the shaping process, therefore, the application of a large amount of fine-grained ammonium perchlorate increases the danger of the composite solid propellant, and increases the risk of its development, production and use

Images