Explosive for anti-chemical submunition and preparation method thereof

A technology for cluster bombs and explosives, which is applied in the field of explosives for chemical defense cluster bombs and its preparation. It can solve the problems of high mechanical sensitivity, excessive power, and high detonation velocity, and achieve the effects of high charge density, low mechanical sensitivity, and moderate power.

Active Publication Date: 2018-04-13
SHANXI BEIHUA GUANLYU CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the anti-chemical submunition assembly drugs are generally two kinds of lac granulated RD or passivated RD. There are a series of defects such as unstable explosion transmission, excessive power, and high mechanical sensitivity. For example, the passivated black wire is used as the anti-chemical submunition assembly drug, and the charge density is 1.62g / cm 3 , the detonation velocity is 8150m / s, the detonation velocity is too high, and cannot well meet the requirements for the use of anti-chemical sub-cluster munitions.

Method used

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Examples

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preparation example Construction

[0039] The present invention provides the preparation method of explosives for anti-chemical submunitions described in the above technical scheme, comprising the following steps:

[0040] (1) Mix 1,3,5-triamino-2,4,6-trinitrobenzene, cyclotrimethylene trinitrate ammonium and water to obtain a suspension;

[0041] (2) mixing the suspension obtained in the step (1) with polymethyl acrylate-butyl acrylate-vinyl acetate polymer and demulsifier to obtain a mixed material;

[0042] (3) mix with ethyl acetate after heating the mixed material that described step (2) obtains, remove ethyl acetate after carrying out granulation;

[0043] (4) the product obtained after removing ethyl acetate in the step (3) is successively filtered, washed and dried to obtain the initial product;

[0044] (5) Passivating the primary product in the step (4) through graphite to obtain explosives for anti-chemical submunitions.

[0045] The invention mixes 1,3,5-triamino-2,4,6-trinitrobenzene, cyclotrimet...

Embodiment 1

[0058] (1) Mix 15kg 1,3,5-triamino-2,4,6-trinitrobenzene, 15kg cyclotrimethylene trinitrate ammonium and 75kg water, and use a four-blade propulsion stirrer at 1200rpm Stir for 20min to obtain a suspension;

[0059] (2) the suspension in the step (1) is mixed with 1.54kg polymethyl acrylate-butyl acrylate-vinyl acetate polymer and 0.600kg magnesium chloride to obtain a mixed material;

[0060] (3) Use steam to heat the mixed material in the step (2) to 65°C at a rate of 5°C / min, then add ethyl acetate at a rate of 10mL / min for granulation, and observe the yellow particle size control by sampling The amount of ethyl acetate added, the more ethyl acetate is added, the larger the particle size of the yellow particles; when the particle size of the yellow particles reaches 0.25-0.85mm, stop adding ethyl acetate, and raise the temperature of the obtained mixed solution to 80°C , carry out vacuum distillation under the condition of vacuum degree of 0.02MPa, remove ethyl acetate;

...

Embodiment 2

[0064] (1) Mix 14.29kg 1,3,5-triamino-2,4,6-trinitrobenzene, 15.71kg cyclotrimethylene trinitrate ammonium and 78kg water, and use a four-blade propulsion stirrer at 2100rmp Stir for 15min under the condition to obtain a suspension;

[0065] (2) the suspension in the step (1) is mixed with 1.57kg polymethyl acrylate-butyl acrylate-vinyl acetate polymer and 0.660kg calcium chloride to obtain a mixed material;

[0066] (3) Use steam to heat the mixed material in step (2) to 60°C at a rate of 2°C / min, then add ethyl acetate at a rate of 15mL / min for granulation, and observe the yellow particle size control by sampling The amount of ethyl acetate added, the more ethyl acetate is added, the larger the particle size of the yellow particles; when the particle size of the yellow particles reaches 0.25-0.85mm, stop adding ethyl acetate, and raise the temperature of the obtained mixed solution to 65°C , carry out vacuum distillation under the condition of vacuum degree of 0.04MPa, remo...

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Abstract

The invention provides an explosive for a chemical-defense canister shot. The explosive for the chemical-defense canister shot is prepared from 39.00wt% to 48.95wt% of 1,3,5-triamino-2,4,6-trinitrobenzene, 48.75wt% to 58.74wt% of cyclotrimethylene trinitramine, 2.00wt% to 2.30wt% of polymethyl acrylate-butyl acrylate-vinyl acetate polymer and 0.10wt% to 0.20wt% of graphite. The explosive provided by the invention is high in charging density, low in mechanical sensitivity and moderate in detonation velocity and force; the use requirement of charging the explosive for the chemical-defense canister shot can be met. In addition, the invention provides a preparation method of the explosive for the chemical-defense canister shot; the operation is simple and convenient; the preparation method is applicable to industrial production.

Description

technical field [0001] The invention relates to the technical field of explosives, in particular to an explosive for chemical-resistant submunitions and a preparation method thereof. Background technique [0002] RDX (cyclotrimethyltrinitramine, RDX) is one of the most important high-energy single explosives in the 20th century. It has the characteristics of high force, high power and good chemical safety, and its explosive power is 1.5 times stronger than that of TNT. In the prior art, the anti-chemical submunition assembly drugs are generally two kinds of lac granulated RD or passivated RD. There are a series of defects such as unstable explosion transmission, excessive power, and high mechanical sensitivity. For example, the passivated black wire is used as the anti-chemical submunition assembly drug, and the charge density is 1.62g / cm 3 When, the detonation velocity is 8150m / s, the detonation velocity is too high, can't well meet the use requirement of the anti-chemical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B25/34C06B21/00
CPCC06B21/0025C06B25/34
Inventor 闫华贾宏选王卫星侯会生卫涌毋文莉姚新民谢利鹏杨琨
Owner SHANXI BEIHUA GUANLYU CHEM IND
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