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Monodisperse 2,6-diamino-3,5-dinitropyrazine-1-oxide microsphere explosive and preparation method thereof

A dinitropyrazine and diamino technology, applied in the direction of nitrated acyclic/alicyclic/heterocyclic amine explosive composition, explosive processing equipment, explosives, etc., can solve the problem of poor dispersion, complicated process, submicron particles without nano Structure and other issues, to achieve the effect of narrow particle size distribution, simple process flow, and mild experimental conditions

Active Publication Date: 2017-05-31
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

[0004] Judging from the existing public information, there are currently some methods for preparing LLM-105 submicron particles, but the existing methods have complex processes, poor dispersion, and the prepared submicron particles have no nanostructure

Method used

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  • Monodisperse 2,6-diamino-3,5-dinitropyrazine-1-oxide microsphere explosive and preparation method thereof
  • Monodisperse 2,6-diamino-3,5-dinitropyrazine-1-oxide microsphere explosive and preparation method thereof
  • Monodisperse 2,6-diamino-3,5-dinitropyrazine-1-oxide microsphere explosive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Weigh 0.5g of 2,6-diamino-3,5-dinitropyrazine-1-oxide, 60mL of dimethylformamide and 10mL of N-methylpyrrolidone at room temperature, heat to 80°C, The stirring speed was 500 rpm to completely dissolve into a clear solution. Quickly fill the obtained solution into a 5mL plastic syringe, replace the syringe with a 27G flat-top metal needle, and then install the syringe on the propulsion pump in the electrostatic spray device with an ambient temperature of 35°C, and set the flow rate of the propulsion pump 0.05mm / s, connect the positive high voltage 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 be 25cm. Turn on the switch of the propulsion pump, first adjust the negative voltage to -15kV, then adjust the positive voltage to 7.5kV, at this time a Taylor cone appears on the flat top needle. After a period of ...

Embodiment 2

[0026] Weigh 0.6g of 2,6-diamino-3,5-dinitropyrazine-1-oxide, 50mL of dimethylformamide and 50mL of N-methylpyrrolidone at room temperature, heat to 70°C, The stirring speed was 300 rpm to completely dissolve into a clear solution. Quickly fill the obtained solution into a 5mL plastic syringe, replace the syringe with a 19G flat-top metal needle, and then install the syringe on the propulsion pump in the electrostatic spray device with an ambient temperature of 34°C, and set the flow rate of the propulsion pump 0.01mm / s, connect the positive high voltage 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 be 15cm. Turn on the switch of the propulsion pump, first adjust the negative voltage to -15kV, then adjust the positive voltage to 6kV, at this time a Taylor cone appears on the flat top needle. After a period of st...

Embodiment 3

[0028] Weigh 0.8g of 2,6-diamino-3,5-dinitropyrazine-1-oxide, 90mL of dimethylformamide and 10mL of N-methylpyrrolidone at room temperature, heat to 75°C, The stirring speed was 700 rpm to completely dissolve into a clear solution. Quickly fill the obtained solution into a 5mL plastic syringe, replace the syringe with a 23G flat-top metal needle, then install the syringe on the propulsion pump in the electrostatic spray device with an ambient temperature of 33°C, and set the flow rate of the propulsion pump 0.025mm / s, connect the positive high voltage 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 -15kV, then adjust the positive voltage to 7kV, at this time a Taylor cone appears on the flat top needle. After a period of stabilit...

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Abstract

The invention discloses a preparation method of a monodisperse 2,6-diamino-3,5-dinitropyrazine-1-oxide microsphere explosive. The preparation method comprises the following steps: (A) weighing a certain amount of 2,6-diamino-3,5-dinitropyrazine-1-oxide and dissolving the 2,6-diamino-3,5-dinitropyrazine-1-oxide; (B) sucking a solution in the step (A) into an injector with a flat syringe needle and collecting the monodisperse 2,6-diamino-3,5-dinitropyrazine-1-oxide microsphere explosive by using an electrostatic spraying device. The invention further discloses the monodisperse 2,6-diamino-3,5-dinitropyrazine-1-oxide microsphere explosive. The product particles are spherical, the particle size distribution is narrow, the microsphere particles all are formed by nano-particles, and the microsphere explosive has an important application prospect in the field of an initial drug. The method is simple in technological process, the prepared microsphere particles do not need to be subjected to further after-treatment, the experiment condition is mild and the security is good.

Description

technical field [0001] The invention belongs to the technical field of energetic material preparation, and specifically relates to a monodisperse 2,6-diamino-3,5-dinitropyrazine-1-oxide microsphere explosive and a preparation method thereof. Background technique [0002] 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105) is a new type of explosive with excellent energy and safety performance, which is resistant to heat, shock wave, spark, impact and friction Sensitive, is an important energetic compound with recognized insensitivity and high energy level. Its energy level is about 15% higher than that of the insensitive explosive 1,3,5-triamino-2,4,6-trinitrobenzene (TATB). Due to its excellent comprehensive performance, it can be used in some special-purpose weapons such as ground-penetrating weapons that require anti-overload capability to replace TATB as booster or main charge. [0003] Energetic materials can effectively improve their energy release efficiency and reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/34C06B21/00
CPCC06B21/0066C06B21/0075C06B25/34
Inventor 黄川杨志剑潘丽萍巩飞艳聂福德
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS