Coating method for in-situ generating energy-containing deterrent ANPZ on surface of 1,3,5-trinitro-1,3,5-triaza-cyclohexane (RDX)

A technology of in-situ generation and desensitizing agent, applied in the direction of nitroalkane composition and the like, can solve the problems of lowering the output energy of explosives, lowering the mechanical sensitivity and the like, and achieves the effects of being beneficial to recycling, lowering the sensitivity and simple preparation process

Inactive Publication Date: 2011-08-17
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above research results show that coating RDX with inert materials such as stearic acid, paraffin, graphite, and polymer materials such as polyurethane, fluoropolymer, and bonding agent can reduce its mechanical sensitivity well, but the disadvantage is that explosives The output energy also decreases

Method used

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  • Coating method for in-situ generating energy-containing deterrent ANPZ on surface of 1,3,5-trinitro-1,3,5-triaza-cyclohexane (RDX)
  • Coating method for in-situ generating energy-containing deterrent ANPZ on surface of 1,3,5-trinitro-1,3,5-triaza-cyclohexane (RDX)
  • Coating method for in-situ generating energy-containing deterrent ANPZ on surface of 1,3,5-trinitro-1,3,5-triaza-cyclohexane (RDX)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1) Weigh 1.35g of DMDP into a three-necked flask, add 55mL of methanol, place in a water bath at 60°C, and stir at a stirring speed of 300rpm / min for 15min to fully dissolve DMDP;

[0044] 2) Weigh 9g of RDX and add it to the DMDP methanol solution in step 1), stir evenly, then add 0.11gLBA306, mix and stir evenly;

[0045] 3) Weigh 6g of 25% ammonia water in a beaker, use a peristaltic pump to control the dropping rate to 660 μL / min, and slowly add ammonia water to the methanol mixed solution in step 2) under the conditions of a water bath temperature of 60°C and a stirring speed of 380 rpm / min ;

[0046] 4) After all the ammonia water is added dropwise, turn off the peristaltic pump, continue to stir the mixture for 25 minutes, turn off the water bath, and cool down;

[0047] 5) Spread a layer of qualitative filter paper on the inner surface of the glass funnel, pour the mixture in the three-necked flask into the glass funnel for filtration, and when the filtrate no ...

Embodiment 2

[0049] 1) Weigh 1.35g of DMDP into a three-necked flask, add 60mL of methanol, place in a water bath at 55°C, and stir at a stirring speed of 280rpm / min for 12min to fully dissolve DMDP;

[0050] 2) Weigh 5.5g of RDX and add it to the DMDP methanol solution in step 1), stir evenly, then add 0.05gLBA306, mix and stir evenly;

[0051] 3) Weigh 7 g of 25% ammonia water in a beaker, use a peristaltic pump to control the dropping rate to 990 μL / min, and slowly add ammonia water to the methanol mixed solution in step 2) at a water bath temperature of 55° C. and a stirring speed of 400 rpm / min;

[0052] 4) After all the ammonia water is added dropwise, turn off the peristaltic pump, continue to stir the mixture for 30 minutes, turn off the water bath, and cool down;

[0053] 5) Spread a layer of qualitative filter paper on the inner surface of the glass funnel, pour the mixture in the three-necked flask into the glass funnel for filtration, and when the filtrate no longer drips, put ...

Embodiment 3

[0055] 1) Weigh 1.35g of DMDP into a three-necked flask, add 65mL of methanol, place in a water bath at 50°C, and stir at a stirring speed of 250rpm / min for 10min to fully dissolve DMDP;

[0056] 2) Weigh 11.5g RDX and add it to the DMDP methanol solution in step 1), stir evenly, add 0.19gLBA306, mix and stir evenly;

[0057] 3) Weigh 5 g of 25% ammonia water in a beaker, use a peristaltic pump to control the dropping rate to 330 μL / min, and slowly add ammonia water to the methanol mixed solution in step 2) under the conditions of a water bath temperature of 50° C. and a stirring speed of 350 rpm / min;

[0058] 4) After all the ammonia water is added dropwise, turn off the peristaltic pump, continue to stir the mixture for 20 minutes, turn off the water bath, and cool down;

[0059] 5) Spread a layer of qualitative filter paper on the inner surface of the glass funnel, pour the mixture in the three-neck flask into the glass funnel for filtration, and when the filtrate no longer...

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Abstract

The invention provides a coating method for in-situ generating energy-containing deterrent ANPZ on the surface of 3,5-trinitro-1,3,5-triaza-cyclohexane (RDX). The method comprises the following steps: dissolving dihydroxylpyrrolidine (DMDP) in methanol, and adding RDX and LBA306, and evenly mixing and stirring; slowly dropwise adding 25wt% ammonia, and generating the ANPZ on a RDX surface in situ; after cooling, filtering the reaction mixture; and drying in a safe water bath drying oven so as to obtain ANPZ-coated RDX explosive. The particle shape of the RDX coated by the method is relative regular, particles are evenly distributed, and no agglomeration phenomenon occurs; and by utilizing the method, the explosive energy of the RDX can be maintained, and the mechanical feeling degree of the RDX is reduced, thereby achieving the requirement on the RDX insensitivity and improving the safety in the process of explosive use.

Description

technical field [0001] The invention relates to a method for coating a desensitizing agent on the surface of an energetic material, in particular to a method for coating an energetic desensitizing agent on the surface of an energetic material RDX. Background technique [0002] The high-energy explosive cyclotrimethylenetrinitramine (hereinafter referred to as RDX) is an energetic material widely used at present. As one of the excellent military explosives, it has the advantages of stable detonation and high detonation velocity. However, due to the high sensitivity of RDX, it cannot Used alone, it must be insensitive or form a composite explosive with other insensitive explosives before it can be applied. For this reason, scholars at home and abroad have conducted extensive and in-depth research on the insensitivity of RDX, which can be summarized in the following two aspects: [0003] 1) The RDX is coated with an inert material to achieve the purpose of reducing the mechani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/40
Inventor 常双君刘玉存刘登程王海宾杨宗伟马晋雅
Owner ZHONGBEI UNIV
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