Porous aromatic skeleton EPAF-3 material and NTO@ EPAF-3 composite energetic material and preparation method thereof

An EPAF-3, porous aromatic skeleton technology, applied in the direction of nitrated acyclic/alicyclic/heterocyclic amine explosive compositions, explosives, etc., can solve the problems of metal corrosion compatibility, limit the practical application of NTO, etc., and achieve high thermal stability performance and stability, high energy density, acid corrosion inhibition effect

Active Publication Date: 2021-10-22
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its acidity will cause serious corrosion to metals and cause a series of compatibility problems, which greatly limits the practical application of NTO.

Method used

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  • Porous aromatic skeleton EPAF-3 material and NTO@ EPAF-3 composite energetic material and preparation method thereof
  • Porous aromatic skeleton EPAF-3 material and NTO@ EPAF-3 composite energetic material and preparation method thereof
  • Porous aromatic skeleton EPAF-3 material and NTO@ EPAF-3 composite energetic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The present invention uses energy-containing monomers trialdehyde group phloroglucinol (TP) and 5,5'-diamino-3,3'-bi-1,2,4-triazole (DABT) as raw materials to polymerize Synthetic route and structure of Schiff base-linked energetic porous aromatic framework EPAF-3 material:

[0022]

[0023] Weigh 105mg of trialdehyde phloroglucinol (0.5mmol) and 124.5mg of DABT (0.75mmol) in a 10mL pyrex glass tube, add 1.5mL of dioxane, 1.5mL of mesitylene and 0.3mL of acetic acid ( 6M), the mixed solution was ultrasonicated for 5min. The freezing and pumping operation was carried out under the protection of nitrogen and liquid nitrogen, and three cycles of freezing-vacuumizing-thawing were performed, and then the tube was sealed under a butane / oxygen flame under vacuum conditions. After the glass tube containing the mixed solution rose to room temperature, it was placed in an oven at 120°C to react for 3 days. The glass tube was removed from the oven to cool to room temperature,...

Embodiment 2

[0030] Weigh 105mg trialdehyde phloroglucinol (0.5mmol) and 124.5mg DABT (0.75mmol) in a 10mL pyrex glass tube, add 1.5mL o-dichlorobenzene, 1.5mL n-butanol and 0.3mL acetic acid (6M ), the mixed solution was ultrasonicated for 5 min. The freezing and pumping operation was carried out under the protection of nitrogen and liquid nitrogen, and three cycles of freezing-vacuumizing-thawing were performed, and then the tube was sealed under a butane / oxygen flame under vacuum conditions. After the glass tube containing the mixed solution rose to room temperature, it was placed in an oven at 120°C to react for 3 days. The glass tube was removed from the oven to cool to room temperature, and the product was filtered. Then wash with anhydrous methanol, boiling water, and anhydrous methanol respectively, and vacuum dry overnight at 80° C. to obtain a porous aromatic framework EPAF-3 material. Weigh 600mg of NTO into a glass bottle, add 20mL of deionized water to fully dissolve it, and...

Embodiment 3

[0032] Weigh 1.05g trialdehyde phloroglucinol (5mmol) and 1.25g DABT (7.5mmol) in a 100mL two-necked bottle, add 15mL dioxane, 15mL mesitylene and 3mL acetic acid (6M), and mix the solution Ultrasound for a while. Under the protection of nitrogen, the reaction was stirred in an oil bath at 120°C for 2 days, and the product was filtered. Wash with anhydrous methanol and boiling water respectively, and dry under vacuum at 80°C overnight to obtain the porous aromatic framework EPAF-3 material. Weigh 600 mg of NTO into a glass bottle, add 20 mL of deionized water to fully dissolve it, and then add 200 mg of EPAF-3 material. Place the glass bottle in an oil bath at 90°C, and keep stirring with the open door open (stirring rate is 200r / min) until a dry solid powder is obtained, and the NTO@EPAF-3 composite energetic material with 75wt% NTO doping can be obtained.

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Abstract

The invention relates to a porous aromatic skeleton EPAF-3 material and NTO@EPAF-3 composite energetic material and a preparation method thereof. Energetic monomers 5, 5 '-diamino-3, 3'-co-1, 2, 4-triazole (DABT) and trialdehyde phloroglucinol (TP) are used as raw materials to synthesize a Schiff base energetic porous aromatic skeleton EPAF-3 material, and the Schiff base energetic porous aromatic skeleton EPAF-3 material is combined with a high-energy strong-acid single-compound explosive NTO to prepare the energetic composite material NTO@EPAF-3. The invention not only enriches the types of novel energetic materials, but also inhibits the NTO energetic single-compound explosive.

Description

technical field [0001] The invention belongs to the field of energetic materials, and relates to porous aromatic skeleton EPAF-3 materials, NTO@EPAF-3 composite energetic materials and preparation methods. Background technique [0002] Energetic materials (EMs) will quickly release a large amount of energy to damage the surrounding objects after being excited by a specific stimulation method, and are widely used in military and civilian fields such as weapons and ammunition, aerospace propellants, mining engineering, pyrotechnics, etc. . NTO (3-nitro-1,2,4-triazol-5-one), a white crystal, is a high-energy elemental explosive that has received widespread attention in recent years. NTO has a detonation performance close to that of RDX, is safer than RDX, and has more development prospects. However, the acidity of NTO directly affects its application value. The strong acidity of NTO is manifested in two aspects: (1) the nitric acid residue in the synthesis and preparation pr...

Claims

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Application Information

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IPC IPC(8): C08G12/28C06B43/00C06B25/34
CPCC08G12/28C06B43/00C06B25/34
Inventor 束庆海宋健吕席卷吴启才邹浩明王俊峰杜君宜施瑞姚裕贵
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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