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Preparation method for hexanitrohexaazaisowurtzitane and m-dinitrobenzene co-crystallized explosive

A technology of dinitrobenzene eutectic explosives and hexanitrohexanitrogen, applied in the direction of nitroalkane composition, etc., can solve the problems of preparation without public literature reports, and achieve the effect of good detonation performance

Active Publication Date: 2013-11-20
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no public literature report about the preparation of CL-20-DNB eutectic explosive

Method used

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  • Preparation method for hexanitrohexaazaisowurtzitane and m-dinitrobenzene co-crystallized explosive
  • Preparation method for hexanitrohexaazaisowurtzitane and m-dinitrobenzene co-crystallized explosive

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Experimental program
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Effect test

Embodiment 1

[0027] At room temperature, add 80ml of ethanol into the three-necked flask, then add enough CL-20 under stirring, dissolve and filter to obtain a saturated solution of CL-20. Then add a sufficient amount of DNB, stir, dissolve, and filter, and the resulting filtrate is a saturated solution of CL-20-DNB. Put the filtrate in a beaker, then put it still in a thermostat at 30°C, let the solvent evaporate, precipitate crystals, and dry to obtain CL-20-DNB eutectic explosive.

Embodiment 2

[0029] At room temperature, add 100ml of methanol into the three-necked flask, then add enough CL-20 under stirring, raise the temperature to 35°C, dissolve and filter to obtain a saturated solution of CL-20. Then add a sufficient amount of DNB, stir, dissolve, and filter, and the resulting filtrate is a saturated solution of CL-20-DNB. Put the filtrate in a beaker, then put it still in a constant temperature box at 30°C, let the solvent evaporate, and precipitate crystals. Dry to obtain CL-20-DNB eutectic explosive.

Embodiment 3

[0031] At room temperature, add 40ml of ethyl acetate into the three-necked flask, then add a sufficient amount of CL-20 under stirring, dissolve, and filter to obtain a saturated solution of CL-20. Then add a sufficient amount of DNB, stir, dissolve, and filter, and the resulting filtrate is a saturated solution of CL-20-DNB. Put the filtrate in a beaker, then put it still in a thermostat at 25°C, let the solvent evaporate, precipitate crystals, and dry to obtain CL-20-DNB eutectic explosive.

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Abstract

The present invention discloses a preparation method for a hexanitrohexaazaisowurtzitane and m-dinitrobenzene co-crystallized explosive, wherein a crystallization solvent is adopted to prepare a hexanitrohexaazaisowurtzitane and m-dinitrobenzene saturated solution, and a constant temperature incubator is adopted to perform solvent evaporation and crystallization to obtain the hexanitrohexaazaisowurtzitane and m-dinitrobenzene co-crystallized explosive. According to the present invention, crystal density of the hexanitrohexaazaisowurtzitane and m-dinitrobenzene (CL-20-DNB) co-crystallized explosive is significantly increased by 19.6% compared with crystal density of DNB, detonation velocity and detonation pressure of the CL-20-DNB co-crystallized explosive are respectively increased by 46.2% and 147.5% compared to detonation velocity and detonation pressure of DNB, and the CL-20-DNB co-crystallized explosive has characteristics of a good detonation performance and high safety performance, and can be used for preparing low sensitivity ammunition.

Description

technical field [0001] The invention belongs to the field of energetic materials, and specifically relates to the preparation method of hexanitrohexaazaisowurtzitane and m-dinitrobenzene (CL-20-DNB) eutectic explosive. The invention is used in high-energy and low-sensitivity main charge It has a good application prospect. Background technique [0002] The detonation energy, safety and other properties of energetic materials are closely related to the constituent elements and molecular structure of materials. Due to the serious contradiction between energy and safety of existing energetic materials, that is, explosives with higher energy may also have higher sensitivity, which restricts their further development and application. Therefore, it is urgent to resolve the contradiction between the energy and safety of energetic materials. At present, relevant researchers have been modifying and modifying the crystal morphology of explosives mainly through recrystallization, poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/38
Inventor 黄辉杨宗伟李洪珍王玉平周小清张祺聂福德
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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