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Preparation method of secondary reaction type damage-enhanced energetic micro-projectile

A secondary reaction and projectile technology, applied in the direction of offensive equipment, explosive processing equipment, explosives, etc., can solve the problems of dust emission, reduce energy utilization rate, etc., achieve high safety, high energy utilization rate, and facilitate mass production.

Pending Publication Date: 2021-10-22
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polymer-based energetic micro-projectiles form a large amount of carbon powder after violent reaction, which is an ineffective component in terms of armor-piercing and killing. On the one hand, it reduces the energy utilization rate of the reaction, and on the other hand, it also causes a certain degree of dust emission.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for preparing secondary reaction type damage-enhanced energetic micro-projectiles, the specific steps are as follows:

[0019] (1) Modified coating

[0020] Surface modification: Weigh 0.3 parts of silane coupling agent and add it to 50 mL of ethyl acetate, stir for 0.5 h, and under the protection of an inert atmosphere, disperse 30 parts of active metal powder into the solution, soak for 6 h, filter and dry to obtain modified active metal powder; wherein, the particle size of the active metal powder is 10 μm;

[0021] Coating: Weigh 2 parts of polyurethane elastomer and add it to 50 mL of ethyl acetate, stir until completely dissolved, and disperse the above 30 parts of modified metal powder into the solution, stir for 2 hours at a speed of 200 rpm / min to obtain a polyurethane elastomer coating Dispersion of coated metal powder.

[0022] (2) Molding preparation

[0023] Powder mixing: Weigh 70 parts of polyvinylidene fluoride and 5 parts of damage enhancer ...

Embodiment 2

[0026] A method for preparing secondary reaction type damage-enhanced energetic micro-projectiles, the specific steps are as follows:

[0027] (1) Modified coating

[0028] Surface modification: Weigh 1 part of silane coupling agent and add it to 50 mL of ethyl acetate, stir for 0.5 h, and under the protection of an inert atmosphere, disperse 40 parts of active metal powder into the solution, soak for 6 h, filter and dry to obtain modified active metal powder; wherein, the particle size of the active metal powder is 10 μm;

[0029] Coating: Weigh 2 parts of polyurethane elastomer and add it to 50 mL of ethyl acetate, stir until completely dissolved, and disperse the above 40 parts of modified metal powder into the solution, stir for 2 hours at a speed of 200 rpm / min to obtain a polyurethane elastomer coating Dispersion of coated metal powder.

[0030] (2) Molding preparation

[0031] Powder mixing: weigh 60 parts of polyvinylidene fluoride and 10 parts of damage enhancer Si...

Embodiment 3

[0034] A method for preparing secondary reaction type damage-enhanced energetic micro-projectiles, the specific steps are as follows:

[0035] (1) Modified coating

[0036] Surface modification: Weigh 0.3 parts of silane coupling agent and add it to 50 mL of ethyl acetate, stir for 0.5 h, and under the protection of an inert atmosphere, disperse 45 parts of active metal powder into the solution, soak for 6 h, filter and dry to obtain modified active metal powder; wherein, the particle size of the active metal powder is 10 μm;

[0037] Coating: Weigh 2 parts of polyurethane elastomer and add it to 50 mL of ethyl acetate, stir until completely dissolved, and disperse the above 30 parts of modified metal powder into the solution, stir for 2 hours at a speed of 200 rpm / min to obtain a polyurethane elastomer coating Dispersion of coated metal powder.

[0038] (2) Molding preparation

[0039] Powder mixing: Weigh 45 parts of polyvinylidene fluoride and 8 parts of damage enhancer ...

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Abstract

The invention relates to a secondary reaction type damage-enhanced energetic micro-projectile, and belongs to the field of new-concept damage energetic materials. The energetic material is composed of a fluoropolymer-based energetic micro-projectile basic formula and a secondary reaction type damage enhancer, and micro-nano carbon powder generated after a violent reaction of the fluoropolymer-based energetic micro-projectile is fully utilized by adjusting the variety and the particle size of the damage enhancer, so that the heat release of the reaction is further improved, and the secondary reaction is realized. The obtained product has the gains of enhancing damage, reducing carbon emission, improving the utilization rate of damage and the like, and has wide application prospects in the fields of air and missile defense, armor penetration killing and the like.

Description

technical field [0001] The invention relates to a preparation method of a secondary reaction type damage-reinforced energetic micro-projectile, which belongs to the field of new-concept damage-containing energetic materials. Background technique [0002] Energetic micro-projectiles are a newly developed class of new concept damage energetic materials. The principle is to design polymer oxidants and metal reductants through the core-shell structure, and then produce them under high-energy conditions such as high-speed impact, high-temperature ignition or laser ignition. Under triggering, a rapid and violent oxidation-reduction reaction occurs, thereby releasing high temperature to the outside, using the gaseous effect of metal fluoride under high temperature conditions to achieve volume expansion of thousands of times, thereby further generating overpressure, and forming a compound such as high temperature and overpressure on the target. The damage effect has broad applicatio...

Claims

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Application Information

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IPC IPC(8): C06B33/02C06B21/00F42B3/04
CPCC06B33/02C06B21/0066C06B21/0075C06B21/0008F42B3/04
Inventor 束庆海王东旭赵帅吕席卷杜君宜姚裕贵
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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