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Preparation method of ammonia water functionalized graphene insensitive coated energetic material

A graphene, graphene dispersion technology, applied in offensive equipment, non-explosive desensitizer/passivator, non-explosive/non-thermal agent components, etc. It can solve the problems of limited coating effect, etc., to achieve the effect of good practical application prospect, improved coating effect and strong universality.

Inactive Publication Date: 2021-06-04
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has been reported in the literature that graphene and its derivatives can improve the mechanical sensitivity of energetic materials to a certain extent, the weak interaction between graphene and energetic materials leads to limited encapsulation effect, which limits the development of energetic materials. Coating desensitization effect

Method used

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  • Preparation method of ammonia water functionalized graphene insensitive coated energetic material
  • Preparation method of ammonia water functionalized graphene insensitive coated energetic material
  • Preparation method of ammonia water functionalized graphene insensitive coated energetic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 10mg GO in 30ml H 2 O, ultrasonically disperse until clear, then add 0.490g HMX, 20ml H 2 O, continue ultrasonic dispersion. Under the condition of stirring at 100°C, 35 μL of ammonia water was added dropwise, and the stirring was continued for 2 hours. After the reaction is completed, filter the reaction solution, wash the filter cake with deionized water several times, and dry it in a vacuum oven at 60°C to obtain HMX / NH 2 -GO composite energetic materials. The impact sensitivity is 40J (the raw material HMX is 10J), and the friction sensitivity is 144N (the raw material HMX is 96N).

Embodiment 2

[0029] Weigh 10mg GO in 30ml H 2 O, ultrasonically disperse until clear, then add 0.490g HMX, 20ml H 2 O, continue ultrasonic dispersion. Under the condition of stirring at 100°C, 35 μL of ammonia water was added dropwise, and the stirring was continued for 4 hours. After the reaction is completed, filter the reaction solution, wash the filter cake with deionized water several times, and dry it in a vacuum oven at 60°C to obtain HMX / NH 2 -GO composite energetic materials. The impact sensitivity is 40J (the raw material HMX is 10J), and the friction sensitivity is 180N (the raw material HMX is 96N).

Embodiment 3

[0031] Weigh 10mg GO in 30ml H 2 O, ultrasonically disperse until clear, then add 0.490g HMX, 20ml H 2 O, continue ultrasonic dispersion. Under the condition of stirring at 100°C, 35 μL of ammonia water was added dropwise, and the stirring was continued for 6 hours. After the reaction is completed, filter the reaction solution, wash the filter cake with deionized water several times, and dry it in a vacuum oven at 60°C to obtain HMX / NH 2 -GO composite energetic materials. The impact sensitivity is 40J (the raw material HMX is 10J), and the friction sensitivity is 160N (the raw material HMX is 96N).

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Abstract

The invention discloses a preparation method of an ammonia water functionalized graphene insensitive coated energetic material, which comprises the steps of (1) dispersing graphene in a water phase to obtain a graphene dispersion liquid, and adding an energetic material into the graphene dispersion liquid to be continuously dispersed to obtain a first mixed solution, wherein the mass ratio of the energetic material to the graphene is 98: (0.05-1.95); (2) in a stirring state, adding ammonia water into the first mixed solution to obtain a second mixed solution; (3) heating the second mixed solution to the temperature of 60-100 DEG C, and continuously stirring to obtain a suspension; and (4) filtering, washing and drying the suspension to obtain the ammonia water functionalized graphene insensitive energetic material. The method can improve the coating effect and reduce the mechanical sensitivity of the energetic material.

Description

technical field [0001] The invention relates to the technical field of energetic materials, in particular to a method for preparing energetic materials coated with ammonia water functionalized graphene insensitivity. Background technique [0002] In modern warfare, tragic incidents caused by the explosion of high-energy materials due to external stimuli have occurred frequently, and there are countless accidents due to sensitivity in the process of production, transportation and storage. Ammonium nitrate explosives such as HMX and CL-20 are currently widely used high-energy primary explosive materials, which have excellent properties such as high energy density, good heat resistance, stable detonation performance, and high detonation velocity. To a large extent, its application is limited, so the research on the desensitization of energetic materials is of great significance to the development of weapons and equipment. High energy and insensitivity are a pair of contradicti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B23/00
CPCC06B23/00C06B23/005
Inventor 黄琪彭汝芳宋玉兰
Owner SOUTHWEAT UNIV OF SCI & TECH
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