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Composite explosive particle and preparation method thereof

A technology of particles and explosives, which is applied in the field of composite explosive particles and its preparation, and composite explosives, which can solve the problems of difficulty in balancing safety and high-energy advantages, and achieve the effect of significant thermal effect, high decomposition temperature, and guaranteed safety

Active Publication Date: 2022-04-01
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a composite explosive particle and its preparation method, which solves the technical problem that the composite explosive in the prior art is difficult to balance safety and high-energy advantages.

Method used

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  • Composite explosive particle and preparation method thereof
  • Composite explosive particle and preparation method thereof
  • Composite explosive particle and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] The present embodiment provides a kind of composite explosive particles, in parts by weight, made of the following raw materials: CL-20 is 74%, ADN is 21%, composite surfactant is 1%, DOA is 1%, EVA is 3%.

[0044] The composite surfactant is composed of sodium taurodeoxycholate and nonylphenol polyoxyethylene ether in a weight ratio of 95:5 and dried.

[0045] The preparation method of the composite explosive particles of the present embodiment, the method may further comprise the steps:

[0046] Step 1, preparation of CL-20 / ADN embedded crystal structure:

[0047] Weigh CL-2074g, ADN21g, and DOA1g; dissolve CL-20 into 500ml ethyl acetate; add ADN, control the temperature at 65-70°C, stir at a speed of 200r / min-300r / min, and add DOA after mixing for 10 minutes; Stirring speed to 60r / min, continue to stir until the material is in the form of mortar, and dry to obtain CL-20 / ADN embedded crystal structure;

[0048]Step 2, coating embedded crystal structure:

[0049] A...

Embodiment 2

[0052] The present embodiment provides a kind of composite explosive particles, in parts by weight, made of the following raw materials: CL-20 is 72.8%, ADN is 22.2%, composite surfactant is 2%, DOA is 1%, EVA is 2%.

[0053] The composite surfactant is composed of sodium taurodeoxycholate and nonylphenol polyoxyethylene ether in a weight ratio of 95:5 and dried.

[0054] The preparation method of the composite explosive particles of this embodiment is the same as that of Embodiment 1.

[0055] See Table 1 for the performance test results of the composite explosive particles of this embodiment.

Embodiment 3

[0057] The present embodiment provides a kind of composite explosive particles, in parts by weight, made of the following raw materials: CL-20 is 74.6%, ADN is 20.4%, composite surfactant is 0.5%, DOA is 0.5%, EVA is 4%.

[0058] The composite surfactant is composed of sodium taurodeoxycholate and nonylphenol polyoxyethylene ether in a weight ratio of 95:5 and dried.

[0059] The preparation method of the composite explosive particles of this embodiment is the same as that of Embodiment 1.

[0060] See Table 1 for the performance test results of the composite explosive particles of this embodiment.

[0061] Performance Testing:

[0062] (1) According to the detonation theory of explosives, calculate the detonation parameters of the composite particles; press the composite particles into a grain column with a diameter of 20mm, and conduct the detonation velocity test according to GJB772A method 702.1, and compare it with CL-20 of 975CL-20 / 3%EVA ;

[0063] (2) According to G...

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Abstract

The invention provides a composite explosive particle and a preparation method thereof. The composite explosive particle is prepared from the following raw materials: CL-20, ADN, a composite surfactant, DOA and EVA, the composite surfactant is prepared from sodium taurodeoxycholate and nonylphenol polyoxyethylene ether. The composite explosive particle has the advantage of high energy, compared with CL-20, the detonation velocity of the insensitive composite particle is reduced by less than 5%, and the explosion heat and oxygen balance are remarkably improved. The composite explosive particle provided by the invention has the advantage of low sensitivity, and the mechanical sensitivity of the composite particle is obviously superior to that of the original CL-20 explosive and ADN explosive. The composite explosive particle is remarkable in heat effect, and the decomposition temperature is higher than that of the simple substance component ADN. According to the composite explosive particle, two sensitive high-energy explosives are adopted as matrixes to prepare the composite particle, and the safety of a composite material is guaranteed through a physical matching technology.

Description

technical field [0001] The invention belongs to the field of explosives and relates to composite explosives, in particular to composite explosive particles and a preparation method thereof. Background technique [0002] Explosive charge is the main energy source of the weapon system, and its effect directly affects the combat effect of the weapon system. As the core component of the explosive charge, the energy and safety of the explosive charge directly determine the power and safety of the explosive charge and even the entire weapon system. For this reason, the industry has been working on researching high-energy insensitive elemental explosives. Explosives are metastable substances, usually high-energy elemental explosives such as CL-20, [0003] ADN and the like have poor safety, and explosives with good safety such as TATB have lower power. In order to integrate energy and safety, the general practice in the industry is to use high-energy unsafe single-substance expl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/40C06B25/34C06B45/36C06B23/00C06D5/06
Inventor 席鹏张坤潘文封雪松赵娟
Owner XIAN MODERN CHEM RES INST
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