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High explosive with high thermal stability and preparation method thereof

A technology of high thermal stability and high explosives, which is applied to a single substance as explosives, explosives, offensive equipment, etc., can solve the problems of high mechanical sensitivity, low thermal stability, affecting the personal safety of fighters, etc., and achieves simple operation and raw materials. easy-to-get effect

Pending Publication Date: 2022-06-21
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The detonation performance of TNT and LLM-116 explosives is relatively low, which can only meet simple industrial operations such as mining and blasting, and cannot meet the growing demand for high detonation performance in today's civil and military fields.
For RDX, CL-20 and other high-detonation performance explosives, although their energy meets the standards of modern warfare, their mechanical sensitivity is extremely high, and their thermal stability is also low, which greatly affects the combat effectiveness of combat personnel on the battlefield. personal safety and extended combat time

Method used

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  • High explosive with high thermal stability and preparation method thereof
  • High explosive with high thermal stability and preparation method thereof
  • High explosive with high thermal stability and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] At room temperature, 2.0 g of 1,1-diamino-2-nitro-2-tetrazolylethylene was dispersed in 50 mL of water (0.04 g mL -1 ), 3.5 g of hydrazine hydrate was added at one time, then reacted at 55°C for 3 h, cooled to room temperature, added dropwise acetic acid to pH=4, filtered, washed with water, and dried at room temperature to obtain a yellow solid.

Embodiment 2

[0028] In an ice-water bath, 2.0 g of 1,1-diamino-2-nitro-2-tetrazolylethylene was dispersed in 50 mL of methanol (0.04 gmL -1 ), add 3.5 g of hydrazine hydrate in batches, then react at 60 ° C for 24 h, cool to room temperature, add sulfuric acid dropwise to it until pH=2, wash with water, and dry at room temperature to obtain an orange solid.

Embodiment 3

[0030] At 50°C, 2.0 g of 1,1-diamino-2-nitro-2-tetrazolylethylene was dispersed in 50 mL of acetonitrile (0.04 gmL -1 ), add 3.5 g of hydrazine hydrate at one time, react at 80 °C for 12 h, immediately add hydrochloric acid to the solution pH=3.45, filter with suction, wash with water, and dry at room temperature to obtain a yellow solid.

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Abstract

The invention discloses a high explosive with high thermal stability. The high explosive is a compound 1-amino-1-hydrazino-2-nitro-2-tetrazolyl ethylene. The invention also discloses a preparation method of the 1-amino-1-hydrazino-2-nitro-2-tetrazolyl ethylene, and the preparation method comprises the following steps: firstly, enabling an initial raw material 1, 1-diamino-2-nitro-2-tetrazolyl ethylene to react with hydrazine hydrate, and then reacting with hydrochloric acid to obtain the 1-amino-1-hydrazino-2-nitro-2-tetrazolyl ethylene. The compound has high gas production rate and enthalpy of formation, and the preparation method is simple, green, pollution-free and good in stability, so that the compound is an energetic material with potential.

Description

technical field [0001] The invention belongs to the field of energetic materials, in particular to a high thermal stability explosive and a preparation method thereof. Background technique [0002] As the main energy source in pyrotechnics and weapons, energetic materials have been widely studied. For modern warfare, it is the goal of modern weapons to increase the launch and damage power of weapons, meet the needs of weapon miniaturization, and achieve precise strikes. In order to meet the requirements of advanced weapons in modern warfare, the development of energetic materials with excellent characteristics such as high density, low vulnerability and environmental friendliness is considered to be an efficient strategy. [0003] In recent years, the civil and military applications of energetic materials mainly stay in trinitrotoluene (TNT), 3,5-dinitro-4-aminopyrazole (LLM-116), black oxogen (RDX) , hexanitrohexaazaisowurtzitane (CL-20) and other explosive molecules. Th...

Claims

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Application Information

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IPC IPC(8): C07D257/04C06B49/00
CPCC07D257/04C06B49/00
Inventor 汤永兴殷召阳黄伟
Owner NANJING UNIV OF SCI & TECH
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