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High-detonation-velocity low-sensitivity composite explosive and preparation method thereof

A technology of high detonation velocity and explosives, which is applied in the direction of explosives processing equipment, explosives, nitrated acyclic/alicyclic/heterocyclic amine explosive compositions, etc., which can solve the problems of decreased energy of explosives, high mechanical sensitivity of high-energy explosives, and poor desensitization effect And other issues

Inactive Publication Date: 2016-12-14
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent (CN104496731A) uses a new atomic layer deposition technology to coat nitramine explosives, but its desensitization effect is not good
[0004] Judging from the existing public information, there are currently some methods to reduce the mechanical sensitivity of explosives, but there are still technical problems that the mechanical sensitivity of high-energy explosives is too high, or the energy of explosives is greatly reduced due to the addition of too much desensitizing agent

Method used

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  • High-detonation-velocity low-sensitivity composite explosive and preparation method thereof

Examples

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Effect test

Embodiment 1

[0032] Step 1: Weigh 91g of hexanitrohexaazpentazane, 4g of 1,3,5-triamino-2,4,6-trinitrobenzene, 190g of deionized water, 0.1g of polyvinyl alcohol, add Zirconia ball milling beads were mechanically milled for 30 minutes at 150 rpm using a planetary ball mill, filtered, washed with deionized water, and dried to obtain an explosive mixture;

[0033]Step 2: Add 100 g of deionized water to the above-mentioned explosive mixture, stir at 300 rpm for 15 minutes to form an explosive suspension, heat to 50° C., and add dropwise a polymer bonding agent with a concentration of 4 wt % made of 3 g of polyurethane Agent solution, apply vacuum treatment for 15min, the vacuum degree is 300mbar, and the explosive powder begins to granulate. Then add dropwise a paraffin solution with a concentration of 8 wt % prepared from 1 g of paraffin wax, and keep heating at 50° C., stirring at 300 rpm and vacuum treatment at 300 mbar for 5 min. Add 1g of colloidal graphite, stir for 5 minutes, filter t...

Embodiment 2

[0036] Step 1: Weigh 86g of hexanitrohexaazaisopentazane, 10g of 1,3,5-triamino-2,4,6-trinitrobenzene, 190g of deionized water, polyoxyethylene sorbitan Add 0.1 g of monolaurate, add zirconia ball milling beads, use a planetary ball mill to perform mechanical ball milling at 500 rpm for 30 minutes, filter, wash with deionized water, and dry to obtain an explosive mixture;

[0037] Step 2: Add the above explosive mixture to 280g of deionized water, stir at 800rpm for 15min to form an explosive suspension, heat to 70°C, add dropwise a polymer viscous solution with a concentration of 1wt% made of 3g of ethylene-vinyl acetate copolymer. Binder solution, apply vacuum treatment for 15min, the vacuum degree is 60mbar, and the explosive powder starts to granulate. Then add dropwise a paraffin wax solution with a concentration of 4 wt% prepared by 0.5 g paraffin wax, and keep heating at 70° C., stirring at 800 rpm and vacuum treatment at 60 mbar for 5 min. Add 0.5 g of graphene, stir ...

Embodiment 3

[0040] Step 1: Weigh 180g of hexanitrohexaazisopentazane, 10g of 1,3,5-triamino-2,4,6-trinitrobenzene, 380g of deionized water, octylphenol polyoxyethylene Add 0.2 g of ether, add zirconia ball milling beads, use a planetary ball mill to perform mechanical ball milling at 400 rpm for 30 minutes, filter, wash with deionized water, and dry to obtain an explosive mixture;

[0041] Step 2: Add the above explosive mixture to 350g of deionized water, stir at 500rpm for 15min to form an explosive suspension, heat to 65°C, add dropwise a polymer solution with a concentration of 6wt% made of 4g of fluororubber, and apply vacuum treatment After 15 minutes, the vacuum degree was 240mbar, and the explosive powder began to granulate. Add dropwise a solution with a concentration of 2 wt% prepared from 1 g of paraffin, and keep heating at 65° C., stirring at 500 rpm and vacuum treatment at 240 mbar for 5 min. Add 1 g of colloidal graphite, stir for 5 minutes, filter the material, wash with ...

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Abstract

The invention discloses a high-detonation-velocity low-sensitivity composite explosive and a preparation method thereof. The preparation method comprises the following steps: weighing hexanitro-hexaaza-isopentaisowurtzitane and 1,3,5-triamino-2,4,6-trinitrobenzene, adding deionized water, a surfactant and zirconium oxide milling balls, carrying out mechanical ball milling by using a planetary ball mill, filtering, washing with deionized water, and drying to obtain an explosive mixture; adding deionized water into the explosive mixture, stirring, heating, dropwisely adding a high-polymer adhesive solution, and carrying out vacuum treatment; dropwisely adding a paraffin solution while keeping heating, stirring and vacuum treatment; and adding a carbon material, stirring, filtering the material, carrying out deionized washing, and drying to obtain the high-detonation-velocity low-sensitivity composite explosive. The high-detonation-velocity low-sensitivity composite explosive can effectively implement the explosive detonation velocity of up to 9000 m / s or above, and the impact sensitivity and friction sensitivity are respectively less than 10%.

Description

technical field [0001] The invention belongs to the technical field of explosive composite material preparation, and in particular relates to a high-detonation-velocity low-sensitivity composite explosive and a preparation method thereof. Background technique [0002] Hexanitrohexaazaisopentazane has high energy density and is a typical third-generation energetic material. It has important military application prospects in the fields of energy-gathering armor penetration and high-efficiency damage. However, hexanitrohexaazaisopentazane itself has high impact sensitivity and friction sensitivity, and its safety performance is poor, so there are safety risks in the use, transportation and storage of weapon ammunition. By adopting the new composite material desensitization technology, it can achieve low insensitivity while satisfying the high detonation velocity, and significantly improve the safety level of weapons. [0003] The US patent (US6783615, 2004) invented a method f...

Claims

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Application Information

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IPC IPC(8): C06B25/34C06B21/00
CPCC06B21/0025C06B25/34
Inventor 杨志剑丁玲巩飞艳李玉斌聂福德
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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