Preparation method of hexanitrohexaazaisowurtzitane/p-benzoquinone cocrystal explosive

A technology of hexanitrohexaazide and isowurtzitane is applied in the field of energetic materials, which can solve the problem of no public literature report on the preparation of CL-20-PBQ eutectic explosive, and achieve the effects of saving manpower and material resources and improving safety.

Active Publication Date: 2013-12-11
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-PBQ eutectic explosive

Method used

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  • Preparation method of hexanitrohexaazaisowurtzitane/p-benzoquinone cocrystal explosive
  • Preparation method of hexanitrohexaazaisowurtzitane/p-benzoquinone cocrystal explosive
  • Preparation method of hexanitrohexaazaisowurtzitane/p-benzoquinone cocrystal explosive

Examples

Experimental program
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Effect test

Embodiment 1

[0029] At room temperature, add 60ml of ethanol into the three-necked flask, then add a sufficient amount of CL-20 under stirring, raise the temperature to 30°C, dissolve and filter to obtain a saturated solution of CL-20. Then add a sufficient amount of PBQ, stir, dissolve, and filter, and the resulting filtrate is a saturated solution of CL-20-PBQ. Put the filtrate in a beaker, then put it still in a constant temperature box at 30°C, let the solvent evaporate, precipitate crystals, and dry to obtain CL-20-PBQ eutectic explosive.

Embodiment 2

[0031] At room temperature, add 50ml 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 PBQ, stir, dissolve, and filter, and the resulting filtrate is a saturated solution of CL-20-PBQ. 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-PBQ eutectic explosive.

Embodiment 3

[0033] At room temperature, add 50ml of ethyl acetate 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 PBQ, stir, dissolve, and filter, and the resulting filtrate is a saturated solution of CL-20-PBQ. Put the filtrate in a beaker, then put it still in a constant temperature box at 30°C, let the solvent evaporate, precipitate crystals, and dry to obtain CL-20-PBQ eutectic explosive.

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Abstract

The invention discloses a preparation method of a hexanitrohexaazaisowurtzitane/p-benzoquinone cocrystal explosive. Firstly a saturated solution of hexanitrohexaazaisowurtzitane and a saturated solution of p-benzoquinone are prepared using a crystallization solvent, and then the solvent is allowed to evaporate through a constant-temperature incubator, followed by crystallization to prepare a hexanitrohexaazaisowurtzitane/p-benzoquinone cocrystal explosive. The invention has the benefits as follows: the crystal density of the hexanitrohexaazaisowurtzitane/p-benzoquinone cocrystal explosive is up to 1.737 g/cm3, the melting point of the cocrystal explosive is 132 DEG C and is greatly increased by 17 DEG C as compared with relatively-pure component PBQ, and the cocrystal decomposition temperature is lower than that of both CL-20 and BQ and 207 DEG C lower than that of PBQ. Therefore, by virtue of cocrystallization, the thermal decomposition behavior of the explosive can be obviously controlled, the high efficiency and desensitivity of cocrystallization of the explosive are achieved, the safety of the explosive is improved, and the explosive has a good application prospect in high-energy 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 p-benzoquinone (CL-20-PBQ) eutectic explosive. Good application prospects. Background technique [0002] Hexanitrohexaazaisowurtzitane (CL-20) is a cage-shaped high-energy explosive with high density and energy, which is of great significance in high-energy charges and improving the efficient damage of weapons and ammunition. However, its high sensitivity limits its application to low-sensitivity ammunition. How to effectively reduce its sensitivity has become a hot spot and focus of relevant researchers. The usual desensitization methods, such as solution recrystallization, polymer material coating and other conventional methods, often have no obvious desensitization effect. Recently, eutectic technology has become an emerging explosive modification method, which can effectively adjust the properties of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/36C06B21/00
Inventor 杨宗伟李洪珍王玉平周小清张祺聂福德黄辉
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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