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A Method for Improving Radiation Aging Resistance of Explosive Parts

A technology of anti-radiation and explosives, which is applied in the fields of improving anti-radiation aging of explosives and improving the performance of explosives. It can solve problems such as unpredictable output performance and gradual changes in performance, and achieve the effect of improving the performance of anti-radiation aging.

Active Publication Date: 2018-07-31
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

Energetic materials and explosives will be affected by natural and human factors such as external temperature, humidity, and radiation during storage, which will gradually change the properties of materials and components, resulting in unpredictable output performance during use

Method used

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  • A Method for Improving Radiation Aging Resistance of Explosive Parts

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A method for improving the radiation aging resistance of explosives, comprising:

[0043] Step 1: Prepare 200 mL of Tris solution with a concentration of 20 mmol / L;

[0044] Step 2: Dissolve dopamine hydrochloride at a concentration of 2 g / L in the Tris solution. After complete dissolution, the pH value of the solution is 8.5. Use a stirrer to stir and mix the dispersion at a speed of 500 r / min for 12 hours;

[0045] Step 3: Suction filter and wash the stirred dispersion liquid, wash with distilled water for 3 times, and separate out the polymer;

[0046] Step 4: placing the cleaned material in an oven at 50°C for 5 hours to obtain a dopa polymer material;

[0047] Step 5: Add the dopa polymer directly into the HMX explosive slurry at a content of 1% by mass fraction, and obtain a radiation-resistant HMX-based explosive after the explosive is cured.

Embodiment 2

[0049] A method for improving the radiation aging resistance of explosives, comprising:

[0050] Step 1: Prepare 200 mL of Tris solution with a concentration of 20 mmol / L;

[0051] Step 2: Dissolve dopamine hydrochloride at a concentration of 4 g / L in the Tris solution. After complete dissolution, the pH of the solution is 8.5. Use a stirrer to stir and mix the dispersion at a speed of 500 r / min for 12 hours;

[0052] Step 3: Suction filter and wash the stirred dispersion liquid, wash with distilled water for 3 times, and separate out the polymer;

[0053] Step 4: placing the cleaned material in an oven at 50°C for 5 hours to obtain a dopa polymer material;

[0054] Step 5: The dopa polymer is directly added to the TATB explosive slurry at a content of 5% by mass fraction, and after the explosive is cured, a radiation-resistant aging-resistant TATB explosive is obtained.

Embodiment 3

[0056] A method for improving the radiation aging resistance of explosives, comprising:

[0057] Step 1: Prepare 200 mL of Tris solution with a concentration of 20 mmol / L;

[0058] Step 2: Dissolve dopamine hydrochloride with a concentration of 2g / L in the Tris solution. After the solution is completely dissolved, the pH value of the solution is 8.5, then add 20g of HMX to the solution, and use a stirrer to stir and mix the dispersion at a speed of 500r / min. The stirring time for 12h;

[0059] Step 3: Suction filter and clean the stirred dispersion liquid, wash with distilled water for 3 times, and separate the in-situ polymerized HMX modified material;

[0060] Step 4: Place the cleaned material in an oven at 50°C for 5 hours to obtain an in-situ polymerized HMX modified material;

[0061] Step 5: Based on the in-situ polymerized HMX modified material, the modified HMX-based explosive is obtained by casting to obtain an anti-radiation aging explosive.

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Abstract

The invention discloses a method for improving radiation resistance and ageing of an explosive part. The method comprises the steps that a polymer of catechol substances is added into the explosive part, the content of the added polymer of the catechol substances accounts for 0.01%-50% of the mass fraction of the explosive part. The technology for improving the radiation resistance and ageing of the explosive part is simple, a certain content of the polymer of a dopa substance with a catechol functional group only needs to be added in the formula of the explosive part, the adding form is not limited, adding can be conducted directly, and the polymer can be added in the mode of energetic material surface in-situ polymerization. Accordingly, the performance of the radiation resistance and ageing of the explosive part can be significantly improved, large-scale batch preparation can be conducted, and basic characteristics such as the crystal shape, density and mechanical sensitivity of the material cannot be affected.

Description

technical field [0001] The invention relates to a method for improving the performance of explosives, in particular to a method for improving the anti-radiation aging of explosives, and belongs to the technical field of preparation and processing of energetic materials. Background technique [0002] With the development of modern weapon systems and energetic materials, various countries pay more and more attention to the storage research of ammunition and materials. Energetic materials and explosives will be affected by natural and human factors such as external temperature, humidity, and radiation during storage, which will gradually change the properties of materials and components, resulting in unpredictable output performance during use. In order to ensure the functional output characteristics of explosives and energetic materials, in addition to studying the influence of aging factors on them, it is more urgent and more practical to propose how to eliminate the influenc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B23/00
CPCC06B23/00
Inventor 祝青肖春谢虓李尚斌罗观
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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