Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF3 Cites 11 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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
Comparison scheme
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.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com