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Explosive in-situ marking and visual tracing method based on fluorescent energetic molecules

A technology of in-situ labeling and molecular pairing, applied in the direction of fluorescence/phosphorescence, material analysis through optical means, material analysis, etc., to achieve the effect of enhancing fluorescence and enhancing light absorption efficiency

Active Publication Date: 2021-06-22
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, so far, there have been no reports on the use of fluorescent energetic molecules for explosives labeling and tracking

Method used

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  • Explosive in-situ marking and visual tracing method based on fluorescent energetic molecules
  • Explosive in-situ marking and visual tracing method based on fluorescent energetic molecules
  • Explosive in-situ marking and visual tracing method based on fluorescent energetic molecules

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Embodiment 1

[0019] (1) The construction of BPTAP fluorescent energetic molecules: with tetraazapentalpine as the core structure, phenyl and pyridine on both sides respectively, forming a fused ring structure with 4 rings in parallel, and expanding the conjugation degree of the molecular system ( figure 1 ). Introduce four nitro groups at the 2, 4, 8, and 10 positions of benzo-1,3a, 6, 6a-tetraazapentalpyridine. On the one hand, the introduced four nitro groups act as chromophores to improve light absorption and luminous efficiency. On the other hand, the introduction of four nitro groups as detonating groups increases the energy level, making BPTAP have good thermal stability (thermal decomposition temperature of 375 °C) and detonation energy (detonation velocity of 7.43 km / s).

[0020] (2) Study on the spectral properties of BPTAP:

[0021] The ultraviolet absorption spectrum range of BPTAP obtained by ultraviolet absorption spectrometer is 400-600nm, and its maximum absorption wavelen...

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Abstract

The invention discloses an explosive in-situ marking and visual tracing method based on fluorescent energetic molecules. The method comprises the following steps: 1, constructing the fluorescent energetic molecules; 2, investigating the spectral properties of the fluorescent energetic molecules; 3, optimizing a light-emitting signal of the fluorescent energetic molecule; and 4, marking and tracing the explosive by the fluorescent energetic molecules. According to the marking and tracing technology of the explosive, the conjugated system of the explosive is expanded, the chemical position of nitryl is regulated and controlled, the nitryl serves as a chromophore to enhance the light absorption efficiency, and therefore the nitryl can enhance the fluorescence of explosive molecules instead of quenching the fluorescence of the explosive molecules, and marking and tracing of the explosive can be achieved.

Description

technical field [0001] The present invention relates to the technical fields of energetic materials, public safety, and environmental protection. The embodiment of the present invention relates to the analysis of the existence and content of fluorescent energetic molecules through their own fluorescence signals, and can be doped with other explosives to further Mark and trace other explosives to improve the detection sensitivity and naked-eye visibility of other explosives. Background technique [0002] As a high-energy material, explosives are widely used in weapon systems, civil blasting and other fields due to their high-energy characteristics and damaging effects. The analysis and detection of explosives not only involves the quality control of its development and production process, but also involves the environmental detection of manufacturing sewage or use sites. In addition, the analysis and detection of explosives plays an important role in the early warning of terr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64
CPCG01N21/6428G01N21/6458G01N2021/6439
Inventor 陈建波丁欢刘渝陈娅
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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