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Metal corrosion resistant insensitive ammunition and preparation method thereof

A corrosion-resistant, metal-resistant technology, applied in ammunition, separation methods, chemical instruments and methods, etc., can solve problems such as unfavorable weaponry application, NTO energy reduction, etc., and achieve improved metal corrosion resistance, electrical conductivity, and impact sensitivity The effect of reducing the frictional sensitivity

Active Publication Date: 2022-01-11
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polymer coating method will reduce the energy of NTO, which is not conducive to its application in weaponry

Method used

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  • Metal corrosion resistant insensitive ammunition and preparation method thereof
  • Metal corrosion resistant insensitive ammunition and preparation method thereof
  • Metal corrosion resistant insensitive ammunition and preparation method thereof

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preparation example Construction

[0033] The present invention also provides a method for preparing the above-mentioned anti-metal corrosion type insensitive ammunition, which specifically includes the following steps:

[0034] (1) Slowly add hydrofluoric acid solution with a mass fraction ≥ 40% to the MAX phase with a particle size ≤ 200 mesh, perform an etching reaction at 55-70°C for 24 hours, etch away the aluminum layer in the MAX phase, and then filter, Washing and drying to obtain layered MXene;

[0035] The mass volume ratio of the MAX phase to the hydrofluoric acid solution is 1g: 10mL;

[0036] (2) Dissolve the above-mentioned layered MXene and NTO raw materials with a purity of ≥98% in absolute ethanol, and obtain an anti-metal corrosion type insensitive ammunition through evaporation and crystallization under ultrasonic conditions. The mass percentage of MXene and NTO in absolute ethanol is 5 %~15%; ultrasonic power is 500W; evaporation crystallization temperature is 60~80℃. Wherein the mass volu...

Embodiment 1

[0038] Embodiment 1 of the present invention provides a method for preparing metal corrosion-resistant insensitive ammunition, which specifically includes the following steps:

[0039] (1) Add 2g of Ti 3 AlC 2 Add to 20mL of 49% hydrofluoric acid solution and react at 60°C for 24h to etch away Ti 3 AlC 2 The aluminum layer in, obtained layered MXene through filtering, washing and drying;

[0040](2) Mix the obtained MXene with NTO at a mass ratio of 1:20 to obtain a mixture. Dissolve 10 g of the mixture in 100 mL of absolute ethanol at 55° C., then raise the temperature to 65° C. Under 500W), carry out evaporative crystallization, obtain MXene / NTO compound after the complete evaporation of absolute ethanol, be anti-metal corrosion type insensitive ammunition.

Embodiment 2

[0042] Embodiment 2 of the present invention provides a method for preparing metal corrosion-resistant insensitive ammunition, which specifically includes the following steps:

[0043] (1) Add 2g of Ti 3 AlC 2 Add to 20mL of 49% hydrofluoric acid solution and react at 60°C for 24h to etch away Ti 3 AlC 2 The aluminum layer in, obtained layered MXene through filtering, washing and drying;

[0044] (2) Mix the obtained MXene and NTO at a mass ratio of 1:15 to obtain a mixture. Dissolve 10 g of the mixture in 100 mL of absolute ethanol at 55° C., then raise the temperature to 65° C. Under 500W), carry out evaporative crystallization, obtain MXene / NTO compound after the complete evaporation of absolute ethanol, be anti-metal corrosion type insensitive ammunition.

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Abstract

The invention relates to the technical field of energetic materials, and particularly discloses a metal corrosion resistant insensitive ammunition and a preparation method thereof. The metal corrosion resistant insensitive ammunition is prepared from, by weight, 0-10% of layered MXene and 90-100% of 3-nitro-1, 2, 4-triazole-5-ketone. The preparation method comprises the following steps of firstly, etching an aluminum layer in an MAX phase with hydrofluoric acid to obtain layered MXene, dissolving the layered MXene and NTO raw materials in absolute ethyl alcohol in proportion, and finally, carrying out evaporative crystallization to obtain the metal corrosion resistant insensitive ammunition. According to the metal corrosion resistant insensitive ammunition, the metal corrosion resistance of NTO is enhanced, and the impact sensitivity and friction sensitivity of NTO are further reduced; and the preparation method is simple, the MAX phase is etched by hydrofluoric acid to obtain conductive MXenes, then the MXenes and NTO are prepared by a recrystallization method, and the preparation method has practical application value.

Description

technical field [0001] The invention relates to the technical field of energetic materials, in particular to a metal corrosion-resistant insensitive ammunition and a preparation method thereof. Background technique [0002] Improving the efficiency and safety of weapons in modern warfare is a development trend, which puts forward new requirements for the high energy and insensitivity of energetic materials. The detonation energy of 3-nitro-1,2,4-triazol-5-one (NTO) is close to that of RDX, and the sensitivity is close to that of triaminotrinitrobenzene (TATB), which is beneficial to improve the ammunition It is a high-energy insensitive explosive with good application prospects. [0003] However, the carbonyl and nitro groups in the molecular structure of NTO have a strong electron-withdrawing effect, which reduces the electron cloud density of the adjacent nitrogen atoms, and hydrogen is easily ionized, resulting in strong acidity of NTO. The acidity of NTO will make the ...

Claims

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Application Information

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IPC IPC(8): F42B33/00B01D9/00C23F1/00
CPCF42B33/00C23F1/00B01D9/0031B01D9/0081B01D2009/0086
Inventor 束庆海姚嫒嫒吕席卷王满曼邹浩明
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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