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A kind of nto and ato eutectic explosive and preparation method thereof

A eutectic explosive, C8H16N16O10 technology, applied in explosives processing equipment, explosives, explosive composite components and other directions, can solve the problem of preparation without public literature reports, etc., and achieve the effects of low production cost, mild experimental conditions, and reduced mechanical sensitivity

Active Publication Date: 2022-01-04
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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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 on the preparation of NTO / ATO eutectic explosives

Method used

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  • A kind of nto and ato eutectic explosive and preparation method thereof
  • A kind of nto and ato eutectic explosive and preparation method thereof
  • A kind of nto and ato eutectic explosive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add 50 mL of deionized water into the glass bottle, adjust the pH value of the deionized water to 2 with a low-concentration nitric acid solution, and then add 0.049 g of NTO and 0.036 g of ATO. Vibrate the glass bottle ultrasonically until the NTO and ATO particles are completely dissolved. Adjust the temperature of the incubator to 45°C, and slowly evaporate the solvent under constant temperature conditions. After a large amount of crystals are precipitated, filter and dry to obtain NTO / ATO eutectic explosives.

Embodiment 2

[0030] Add 100 mL of deionized water into the glass bottle, adjust the pH value of the deionized water to 2.5 with a low-concentration nitric acid solution, and then add 0.098 g of NTO and 0.072 g of ATO. Vibrate the glass bottle ultrasonically until the NTO and ATO particles are completely dissolved. Adjust the temperature of the incubator to 35°C, and slowly evaporate the solvent under constant temperature conditions. After a large amount of crystals are precipitated, filter and dry to obtain NTO / ATO eutectic explosives. The thermal decomposition temperature of the eutectic explosive is 242.89°C. The impact sensitivity of the eutectic explosive is >40J, which is better than NTO (15J); the friction sensitivity of the eutectic explosive is >360N, which is at the same level as NTO (>360N). The surface NTO / ATO eutectic explosive is a kind of mechanical stimulus Insensitive explosives.

Embodiment 3

[0032] Add 50 mL of deionized water into the glass bottle, adjust the pH value of the deionized water to 3 with a low-concentration nitric acid solution, and then add 0.049 g of NTO and 0.036 g of ATO. Vibrate the glass bottle ultrasonically until the NTO and ATO particles are completely dissolved. Adjust the temperature of the incubator to 25°C, and slowly evaporate the solvent under constant temperature conditions. After a large amount of crystals are precipitated, filter and dry to obtain NTO / ATO eutectic explosives. The measured acidic dissociation constant pKa value of the eutectic explosive is 8.72. The pKa value of the eutectic explosive is far greater than that of NTO, indicating that the acidity of the NTO / ATO eutectic explosive is weaker than that of NTO, which improves the safety of use.

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Abstract

The invention relates to an NTO / ATO eutectic explosive and a preparation method thereof, belonging to the field of energetic materials. The present invention uses 3-nitro-1,2,4-triazole-5-ketone (NTO) and 5-amino-1,2,4-triazole-3-ketone (ATO) as raw materials, and adopts solvent evaporation method to prepare NTO / ATO eutectic explosives. The method comprises the following steps: at room temperature, NTO and ATO are dissolved in a solvent with a pH value of 2 to 3, after being fully mixed, they are left to stand in a constant temperature environment to slowly volatilize and crystallize, and the NTO / ATO eutectic is obtained by filtering and drying explosives. The NTO / ATO eutectic explosive prepared by the invention has a pKa of 8.72, and its acidity is much lower than that of NTO, which effectively improves the acidity problem of NTO. At the same time, NTO / ATO eutectic explosives have good safety. The preparation method of the invention is simple, the conditions are mild, and the production cost is low. As a high-energy and low-sensitivity explosive, the eutectic explosive has good application prospects.

Description

technical field [0001] The invention relates to a high-energy and low-sensitivity eutectic explosive and a preparation method thereof, in particular to an NTO and ATO eutectic explosive and a preparation method thereof, and belongs to the field of energetic materials. Background technique [0002] Triazolone nitrogen heterocyclic compounds have the characteristics of high density, high nitrogen content and high heat of formation, and are widely used in the field of energetic materials. Among them, 3-nitro-1,2,4-triazol-5-one (NTO), as a representative of triazolone nitrogen heterocyclic explosives, is characterized by its high energy level, good safety performance, simple synthesis process and low manufacturing cost. Low-level characteristics have attracted widespread attention from scholars at home and abroad. At present, NTO has been used in the non-sensitive ammunition formula of the multinational army, which shows that it has a good application prospect. [0003] Howev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B25/34C06B21/00
CPCC06B25/34C06B21/0008
Inventor 王俊峰束庆海王子锋王满曼马仙龙金韶华尚凤琴张哲
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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