Preparation method of fluorine polymer/metal composite energy-containing material

Abstract

The invention discloses a preparation method of a fluorine polymer / metal composite energy-containing material. According to the preparation method, ammonium perchlorate is doped in a fluorine polymermetal energy-containing system through solution crystallization method so as to obtain a novel composite energy-containing material. According to the preparation method, ammonium perchlorate decomposition is adopted to generated a gas product for enhancing the system pressure output and combustion reaction performance, at the same time, the gas obtained through ammonium perchlorate decomposition and reaction product carbon from a fluorine polymer metal system are subjected to oxidation reaction, energy and pressure release is accelerated, so that the fluorine polymer metal energy-containing system energy and combustion reaction characteristics are improved obviously. The preparation method is capable of improving the energy and pressure output of the fluorine polymer metal energy-containing system, and combustion reaction rate is converted from slow combustion to detonation and blast. Doping is adopted to form the novel energy-containing system, and it is possible for the novel energy-containing system to be used in fields such as solid propellant, metallized explosive, and gas generators.

Description

technical field [0001] The invention relates to the technical field of energetic materials, in particular to a preparation method of a fluoropolymer / metal composite energetic material. Background technique [0002] Energetic materials refer to compounds or mixtures that can independently undergo rapid chemical reactions and output energy, and are damage and power sources for weapon systems. Among them, the fluoropolymer / metal energetic system has been widely used in solid propellants, explosives and reactive fragments due to its ultra-high energy density and excellent reactivity. For example, the energy of polytetrafluoroethylene (PTFE) / A1 composite system is 21KJ / cm 3 , The energy density of polytetrafluoroethylene (PTFE) / Mg is 9.6KJ / g. [0003] Years of research and application have found that since the reaction of this type of material is an intermolecular reaction, the energy release rate is controlled by physical processes such as heat transfer and mass transfer. How...

AI Technical Summary

Problems solved by technology

Although these methods can improve the exothermic value of the reaction and the characteristics of the combustion reaction, they still cannot effectively solve the problems of low pressure output and incomplete energy release.

[0004] Pressure is an important factor affecting mass transfer during the material reaction process. However, the reaction product of fluoropolymer metal energetic materials is solid. For example, the boiling point of the reaction product is A1F3 is 1272 ° C, so the pressure output is difficult to be effectively solved.

On the other hand, the fluoropolymer metal energetic system reacts to produce a large amount of carbon. Carbon is the most important fuel for energetic materials. However, due to the lack of oxidant in the fluoropolymer metal system, it cannot react to release heat and pressure.