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Nano eutectic explosive and preparation method thereof

A eutectic explosive, nanotechnology, applied in explosive processing equipment, explosives, offensive equipment and other directions, can solve problems such as potential safety hazards, achieve the effects of good safety, mild experimental conditions, and improved mechanical sensitivity

Inactive Publication Date: 2018-06-15
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

[0004] Judging from the existing public information, there are currently some methods for preparing nano-eutectic explosives. However, the existing methods use an inert gas flow at a certain temperature during the preparation process, and there are certain potential safety hazards.

Method used

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  • Nano eutectic explosive and preparation method thereof

Examples

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Effect test

Embodiment 1

[0034] Weigh 0.0337g of hexanitrohexaazisopentazane and 0.0163g of 1,3,5-trinitrobenzene at room temperature, measure 3mL of acetone, and dissolve them completely at 25°C with a magnetic stirring speed of 500rpm It is a clear solution with a concentration of 2.1% by mass. Quickly fill the resulting solution into a 5mL plastic syringe, replace the syringe with a 27G flat apex metal needle, then install the syringe on the propulsion pump in the electrostatic spray device with an ambient temperature of 25°C, and set the propulsion pump The flow rate is 0.05mm / s, and the positive high voltage is connected to the metal flat top needle. Fix the aluminum foil as a collector on an insulating plate and connect it to a negative high voltage power supply. Adjust the distance from the flat top needle to the collector to 20cm. Turn on the switch of the propulsion pump, first adjust the negative voltage to -10kV, then adjust the positive voltage to 7kV, at this time a Taylor cone appears ...

Embodiment 2

[0036] Weigh 0.0404g of hexanitrohexaazisopentazane and 0.0196g of 1,3,5-trinitrobenzene at room temperature, measure 3mL of acetone, and dissolve them completely at 25°C with a magnetic stirring speed of 500rpm It is a clear solution with a concentration of 2.5% by mass. Quickly fill the resulting solution into a 5mL plastic syringe, replace the syringe with a 27G flat apex metal needle, then install the syringe on the propulsion pump in the electrostatic spray device with an ambient temperature of 26°C, and set the propulsion pump The flow rate is 0.06mm / s, and the positive high voltage is connected to the metal flat top needle. Fix the aluminum foil as a collector on an insulating plate and connect it to a negative high voltage power supply. Adjust the distance from the flat top needle to the collector to 20cm. Turn on the switch of the propulsion pump, first adjust the negative voltage to -10kV, then adjust the positive voltage to 7.5kV, at this time a Taylor cone appear...

Embodiment 3

[0038] Weigh 0.0538g of hexanitrohexaazisopentazane and 0.0212g of 1,3,5-trinitrobenzene at room temperature, measure 3mL of acetone, and dissolve them completely at 25°C with a magnetic stirring speed of 500rpm It is a clear solution with a mass percent concentration of 3.3%. Quickly fill the resulting solution into a 5mL plastic syringe, replace the syringe with a 27G flat apex metal needle, then install the syringe on the propulsion pump in the electrostatic spray device with an ambient temperature of 26°C, and set the propulsion pump The flow rate is 0.07mm / s, and the positive high voltage is connected to the metal flat top needle. Fix the aluminum foil as a collector on an insulating plate and connect it to a negative high voltage power supply. Adjust the distance from the flat top needle to the collector to 20cm. Turn on the switch of the propulsion pump, first adjust the negative voltage to -10kV, then adjust the positive voltage to 8kV, at this time a Taylor cone app...

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Abstract

The invention discloses a preparation method of a nano eutectic explosive. The preparation method comprises following steps: step one, weighing CL-20 and a TNB explosive according to a mole ratio of 1:1, adding the mixture into a good organic solvent, and stirring the solvent by a magnetic force at a room temperature so as to completely dissolve the explosives until the solution becomes transparent and clear; step two, sucking the explosive solution obtained in the step one by a syringe with a dispensing needle, placing the syringe on a micro boost pump, setting the parameters of the boost pump, and adjusting the distance between the needle and a collector; and step three, opening a high voltage power supply, adjusting the voltage, when a Taylor cone appears on the metal needle, maintaining the current experimental conditions, and after a period of spraying, collecting the CL-20 / TNB nano eutectic explosive on a collection plate. The novel CL-20 / TNB nano eutectic explosive has the advantages that the size distribution of the explosive particles is narrow, and the mechanical sensitiveness of CL-20 is improved effectively.

Description

technical field [0001] The invention relates to an explosive and a preparation method thereof, in particular to a nano-eutectic explosive and a preparation method thereof, and belongs to the technical field of energetic materials. Background technique [0002] Hexanitrohexaazaisopentazane (CL-20) is a new cage compound with high energy density, its energy is more than 10% higher than that of Octogen (HMX), and it is currently the highest energy in practical application Elemental explosives. However, CL-20 has high mechanical sensitivity and poor safety, which limits its application in weapons. At present, in view of its high sensitivity, it is mainly processed by micro-nanoization, polymer material coating and eutectic technology. Among them, the combination of micro-nanometer and eutectic technology to prepare nano-eutectic is expected to further improve the mechanical sensitivity of CL-20. [0003] At present, the methods for preparing eutectic explosives at home and ab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/38C06D5/06C06B21/00
CPCC06B21/0033C06B21/0066C06B25/38C06D5/06
Inventor 黄川杨志剑张建虎刘佳辉聂福德
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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