HMX coated with GO (graphene oxide) through electrostatic self-assembly and preparation method of HMX

An electrostatic self-assembly, octogen technology, applied in the directions of nitrated acyclic/alicyclic/heterocyclic amine explosive compositions, attack equipment, explosive processing equipment, etc., can solve the problem of reducing the detonation performance of explosives and the quality of the coating Advanced problems, to achieve the effect of simple experimental equipment requirements, uniform coating thickness, and fast response

Active Publication Date: 2017-02-22
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method adopts a physical coating method, and the quality of the coating is relatively high, which will significantly reduce the detonation performance of the explosive

Method used

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  • HMX coated with GO (graphene oxide) through electrostatic self-assembly and preparation method of HMX
  • HMX coated with GO (graphene oxide) through electrostatic self-assembly and preparation method of HMX
  • HMX coated with GO (graphene oxide) through electrostatic self-assembly and preparation method of HMX

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Weigh 5g of HMX and soak and clean Octogen with ethanol, then suction filter and dry to obtain Octogen after cleaning.

[0044]Put the cleaned Octogen in a beaker; measure 100mL of n-hexane and pour it into the beaker; add 0.2mL APS dropwise into the beaker, then stir and reflux for 8h under heating at 80°C, and then use a large amount of ethanol to dissolve the solid Rinse; followed by drying at 75° C. for 8 hours to obtain amino surface-modified HMX.

[0045] Weigh 0.2 g of amino surface-modified HMX, add it into a beaker filled with 25 mL of deionized water, and then slowly drop dilute hydrochloric acid into the beaker to adjust the pH to 4.5 to obtain a HMX solution. Weigh 0.02g of GO, add it to 25mL deionized water, and disperse it by ultrasonic until the solution is transparent, then slowly add dilute ammonia water to the solution, and adjust the pH to 8.5 to obtain a graphene oxide solution; then mix the HMX solution with the graphene oxide solution Mix and keep...

Embodiment 2

[0053] Weigh 10g of HMX and soak and clean Octogen with ethanol, then suction filter and dry to obtain Octogen after cleaning.

[0054] Put the cleaned Octogen in a beaker; measure 100mL of toluene and pour it into the beaker; add 0.3mL KH-550 dropwise into the beaker, then stir and reflux at 120°C for 12h, and then use a large amount of ethanol to The solid was rinsed; followed by drying at 80° C. for 6 h to obtain amino surface-modified HMX.

[0055] Weigh 0.5 g of amino surface-modified HMX and add it into a beaker filled with 30 mL of deionized water, then slowly add dilute hydrochloric acid dropwise into the beaker to adjust the pH to 5.5 to obtain a HMX solution. Weigh 0.05g of GO, add it to 30mL deionized water, ultrasonically disperse until the solution is transparent, then slowly add dilute ammonia water to the solution, adjust the pH to 8 to obtain a graphene oxide solution; then mix the HMX solution with the graphene oxide solution Mix and keep stirring until the g...

Embodiment 3

[0057] Weigh 10g of HMX and soak and clean Octogen with ethanol, then suction filter and dry to obtain Octogen after cleaning.

[0058] Put the cleaned Octogen in a beaker; measure 100mL of toluene and pour it into the beaker; add 0.3mL of A1120 dropwise into the beaker, then stir and reflux at 120°C for 12h, and then treat the solid with a large amount of ethanol Rinse; then dry at 75°C for 8 hours to obtain amino surface-modified HMX.

[0059] Weigh 0.5 g of amino surface-modified HMX, add it into a beaker filled with 30 mL of deionized water, and then slowly drop dilute hydrochloric acid into the beaker to adjust the pH to 4.5 to obtain a HMX solution. Weigh 0.05g of GO, add it to 30mL deionized water, ultrasonically disperse until the solution is transparent, then slowly add dilute ammonia water to the solution, adjust the pH to 8.5 to obtain a graphene oxide solution; then mix the HMX solution with the graphene oxide solution Mix and keep stirring until the graphene (GO)...

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PUM

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Abstract

The invention discloses a preparation method of HMX coated with GO (graphene oxide) through electrostatic self-assembly. The preparation method comprises steps as follows: cleaned HMX is taken and added to n-hexane or toluene, an amino silane coupling agent is dropwise added, the mixture is stirred for reflux at the temperature of 75-120 DEG C for 8-12 h, then, cleaning is performed with ethanol, thermal treatment is performed at the temperature of 75-80 DEG C for 6-8 h, and amino-modified HMX is obtained; an HMX solution and a GO solution are mixed and stirred until GO is completely separated out, then, filtration, washing and drying are performed, and the HMX coated with GO through electrostatic self-assembly is obtained. The friction sensitivity and the collision sensitivity of the coated HMX are both reduced.

Description

technical field [0001] The invention belongs to the field of preparation of energetic materials, and in particular relates to a graphene oxide electrostatic self-assembly-coated Octogen and a preparation method thereof. Background technique [0002] Military mixed explosives are the main energy source of weapon systems, and their performance directly determines the effectiveness of weapons. At present, high-efficiency damage and high safety have become the main pursuit goals of the future development of weapon systems in various countries, which puts forward the performance requirements of high energy, low sensitivity and excellent mechanical properties for the new generation of explosives. Therefore, improving the safety of explosives without reducing their energy output is an important research topic. [0003] Currently the most widely used explosives include Octokin (HMX) and RDX (RDX). Among them, HMX has better detonation performance, but the safety of its raw materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/34C06B21/00
CPCC06B21/0091C06B25/34
Inventor 刘涛耿呈祯郑保辉罗观
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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