A kind of metal corrosion resistant insensitive ammunition and preparation method thereof

A corrosion-resistant, metal-resistant technology, used in ammunition, separation methods, chemical instruments and methods, etc., can solve problems such as unfavorable weapons and equipment application, NTO energy reduction, etc., to improve metal corrosion resistance, improve electrical conductivity, and stabilize chemistry. and the effect of the electrochemical reaction interface

Active Publication Date: 2022-08-05
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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  • A kind of metal corrosion resistant insensitive ammunition and preparation method thereof
  • A kind of metal corrosion resistant insensitive ammunition and preparation method thereof

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Effect test

preparation example Construction

[0033] The present invention also provides a preparation method of the above-mentioned metal corrosion-resistant insensitive ammunition, which specifically includes the following steps:

[0034] (1) Slowly add a hydrofluoric acid solution with a mass fraction of ≥ 40% into the MAX phase with a particle size of ≤ 200 mesh, and carry out an etching reaction at 55~70 ° C for 24 hours to 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 MAX phase and hydrofluoric acid solution is 1g:10mL;

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

Embodiment 1

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

[0039] (1) Put 2 g of Ti 3 AlC 2 It was added to 20 mL of 49% hydrofluoric acid solution and reacted at 60 °C for 24 h to etch away Ti. 3 AlC 2 The aluminum layer in , was filtered, washed and dried to obtain layered MXene;

[0040](2) The obtained MXene and NTO were mixed at a mass ratio of 1:20 to obtain a mixture, 10 g of the mixture was dissolved in 100 mL of absolute ethanol at 55 °C, and then heated to 65 °C to maintain the temperature, and under ultrasonic conditions (ultrasonic power) Evaporation crystallization was carried out at 500W), and the MXene / NTO composite was obtained after the anhydrous ethanol was completely evaporated, which was an insensitive ammunition resistant to metal corrosion.

Embodiment 2

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

[0043] (1) Put 2 g of Ti 3 AlC 2 It was added to 20 mL of 49% hydrofluoric acid solution and reacted at 60 °C for 24 h to etch away Ti. 3 AlC 2 The aluminum layer in , was filtered, washed and dried to obtain layered MXene;

[0044] (2) The obtained MXene and NTO were mixed at a mass ratio of 1:15 to obtain a mixture, 10 g of the mixture was dissolved in 100 mL of absolute ethanol at 55 °C, and then the temperature was raised to 65 °C to maintain the temperature, and under ultrasonic conditions (ultrasonic power Evaporation crystallization was carried out at 500W), and the MXene / NTO composite was obtained after the anhydrous ethanol was completely evaporated, which was an insensitive ammunition resistant to metal corrosion.

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Abstract

The invention relates to the technical field of energetic materials, and specifically discloses a metal corrosion resistant insensitive ammunition and a preparation method thereof, wherein the metal corrosion resistant insensitive ammunition comprises the following components by weight: 0-10% of layered MXene and 90-100% of 3-nitro-1,2,4-triazole-5-ketone; the preparation method firstly etches the aluminum layer in the MAX phase with hydrofluoric acid to obtain layered MXene, and then combines the layered MXene with NTO The raw materials are dissolved in anhydrous ethanol in proportion, and finally the metal corrosion-resistant insensitive ammunition is obtained through evaporative crystallization. In the invention, the anti-metal corrosion type insensitive ammunition not only enhances the anti-metal corrosion performance of NTO, but also further reduces the impact sensitivity and friction sensitivity of NTO; the preparation method is simple, and the MAX phase is etched with hydrofluoric acid to obtain conductive MXenes, and then The MXenes and NTO were prepared by recrystallization method, which 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 Hexogen (RDX), and the sensitivity is similar to that of triaminotrinitrobenzene (TATB), which is beneficial to improve the ammunition. It is a kind of 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 vicinal nitrogen atom, and then hydrogen is easily ionized, resulting in strong acidity of NTO. The acidi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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