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Near-infrared laser ignition energetic material and preparation method thereof

A laser ignition and near-infrared technology, used in offensive equipment, explosives processing equipment, bulk chemical production, etc., can solve problems such as unstable performance, increased mechanical sensitivity of target composite materials, and poor preparation process safety.

Active Publication Date: 2021-09-17
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

However, the composite energetic material prepared by this method has the disadvantages of unstable performance and poor preparation process safety.
At the same time, adding harder components (metal nano-ions) to explosives will also increase the mechanical sensitivity of the target composite and reduce its safety performance

Method used

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  • Near-infrared laser ignition energetic material and preparation method thereof
  • Near-infrared laser ignition energetic material and preparation method thereof
  • Near-infrared laser ignition energetic material and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0034] 2) Preparation of new energetic materials:

[0035] Dissolving the synthesized energy-containing metal-organic framework material into water at a certain temperature, and then adding CHNO high-energy explosive crystals. After standing at room temperature for 2 to 3 days, a new type of energetic material in which a layer of energetic metal-organic framework material is grown on the surface of CHNO high-energy explosive crystals is obtained. It is a composite of energetic metal-organic framework materials and CHNO high-energy explosives. The energetic metal-organic framework material involved in the present invention is constructed from organic cations, transition metal ions, and energetic ligands, and has good solubility in polar solvents such as water, methanol, and dimethylformamide. Visible light and near-infrared light have strong absorption capabilities. Directly irradiating the near-infrared laser on the target energetic material will cause its deflagration or ex...

Embodiment 1

[0040] Example 1. Preparation of energetic metal organic framework material-1

[0041] At room temperature, add 100mL water, 1.56g bistetrazolylamine (H 2 BTA), 0.8g NaOH, heated to 80°C, and refluxed for 10 minutes. Wait for H 2 After BTA and NaOH were completely dissolved, 2.24 g of triaminoguanidine hydrochloride was added and refluxed for 5 minutes. After the aminoguanidine hydrochloride was completely dissolved, 0.56 g of copper chloride trihydrate was added, refluxed for 10 minutes, filtered, and the filtrate was allowed to stand at room temperature for 1 to 3 days to obtain a green crystal energetic MOF-1 material.

Embodiment 2

[0042] Example 2. Preparation of energetic metal organic framework material-1

[0043] At room temperature, add 100mL water, 1.56g bistetrazolylamine (H 2 BTA), 1.12g KOH, heated to 80°C, and refluxed for 10 minutes. Wait for H 2After BTA and KOH were completely dissolved, 2.24 g of triaminoguanidine hydrochloride was added and refluxed for 5 minutes. After the aminoguanidine hydrochloride was completely dissolved, 0.78 g of cobalt chloride hexahydrate was added, refluxed for 10 minutes, filtered, and the filtrate was allowed to stand at room temperature for 1 to 3 days to obtain a green crystal energetic MOF-1 material.

[0044] figure 2 .is the single crystal diagram of energetic metal organic framework material-1;

[0045] In the structure of this energetic MOF, each copper ion and two deprotonated bistetrazolylamine anions (BTA 2- ) coordination, each BTA 2- The anion coordinates with a copper ion by means of chelate coordination. Through the above coordination met...

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Abstract

The invention discloses a preparation method of a near-infrared laser ignition energetic material, which comprises the following steps: dissolving an energetic metal organic coordination framework material into water at a certain temperature, and then adding CHNO high-energy explosive crystals; and performing standing at room temperature for 1-2 days to obtain a novel energetic material in which a layer of energetic metal organic framework material grows on the surface of CHNO high-energy explosive crystals, namely the target energetic material. The novel energetic material provided by the invention can promote the rapid development of the laser ignition technology, and also provides a new idea for the development of the novel laser ignition energetic material.

Description

technical field [0001] The invention relates to the technical field of energetic materials, in particular to a near-infrared laser ignition energetic material and a preparation method thereof. Background technique [0002] The laser ignition mechanism of energetic materials can be divided into two types: photothermal effect mechanism and laser direct dissociation mechanism. Among them, the mechanism of the photothermal effect is that the energetic material molecules absorb the laser photon energy to generate high-energy heat instantaneously, thereby triggering the ignition of the energetic material. The mechanism of direct laser dissociation refers to the fact that energetic material molecules absorb laser photons of a specific frequency and dissociate to generate highly active molecular fragments, thereby triggering a chemical chain reaction and realizing the ignition of energetic materials. Most of the laser ignition belongs to the photothermal effect ignition, and only w...

Claims

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Application Information

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IPC IPC(8): C06B45/24C06B21/00
CPCC06B45/24C06B21/0083Y02P20/54
Inventor 王康才张庆华
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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