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Method and device for preparing nanometer-eutectic energetic material

A nano-collection device technology, applied in the field of preparation of nano-scale eutectic energetic materials, can solve the problems of laboratory level, particle agglomeration, environmental pollution, etc., achieve mild and easy-to-control reaction conditions, wide range of preparation, and easy operation Effect

Inactive Publication Date: 2014-08-13
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

In known methods for preparing eutectic crystals such as cooling crystallization, solvent volatilization, solvent-non-solvent methods, etc., the preparation of organic crystals can be realized. However, most methods have the following disadvantages: 1, cannot be prepared in batches; most The preparation method is only at the laboratory level, and it is impossible to prepare samples in the order of grams or even kilograms in batches; 2. It is impossible to achieve nanoscale preparation: particle agglomeration is prone to occur during the preparation process, resulting in the inability to prepare microparticles with smaller grain sizes. Nano eutectic crystal; 3. There is a certain degree of environmental pollution
So far, there has been no preparation method for nanoscale eutectic energetic materials

Method used

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  • Method and device for preparing nanometer-eutectic energetic material

Examples

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Effect test

Embodiment 1

[0030]Dissolve the mixture of energetic materials 0.5mol CL-20 and 0.5mol HMX in 100mol distilled water, stir and dissolve to prepare a solution, then put the solution into an ultrasonic container, turn on the temperature gradient heating furnace to make the temperature reach the predetermined temperature (maximum The temperature is 200°C, the lowest temperature is 60°C, forming a gradient temperature environment), nitrogen is continuously fed into the ultrasonic container, the ultrasonic nebulizer is turned on, and the solution in which the energetic materials CL-20 and HMX are dissolved is ultrasonically turned into small mist droplets, nitrogen Carry the small mist droplets to a temperature gradient heating furnace for heating. At this time, the solvent liquid (distilled water in this embodiment) in the mist droplets gradually evaporates, and the CL-20 and HMX in the mist droplets start to eutectic, and the nitrogen gas continues to pass. Load the mist droplets containing eu...

Embodiment 2

[0033] Dissolve energetic materials 0.4mol CL-20 and 0.6mol RDX in 50mol acetone, stir and dissolve to prepare a solution, then put the solution into an ultrasonic container, turn on the temperature gradient heating furnace to make the temperature reach the predetermined temperature (maximum temperature 200°C, the lowest temperature is 60°C, forming a gradient temperature environment), continuously inject argon into the ultrasonic container, turn on the ultrasonic nebulizer, and ultrasonically dissolve the solution containing energetic materials CL-20 and HMX into small mist droplets. The argon gas transfers the small mist to the temperature gradient heating furnace for heating. At this time, the acetone in the mist gradually evaporates, and the energetic material in the mist begins to eutectic, and the argon continues to carry the mist containing the eutectic crystal. To the high-voltage electrostatic field, the distance between the positive and negative electrodes of the high...

Embodiment 3

[0035] Dissolve the mixture of energetic materials 0.5mol CL-20 and 0.5mol NTO in 1mol absolute ethanol, stir and dissolve to prepare a solution, then put the solution into an ultrasonic container, turn on the temperature gradient heating furnace to make the temperature reach the predetermined temperature (The highest temperature is 200°C, the lowest temperature is 60°C, forming a gradient temperature environment), continuously inject nitrogen gas into the ultrasonic container, turn on the ultrasonic nebulizer, and ultrasonically transform the solution in which energetic materials are dissolved into small mist droplets, and the nitrogen gas will spray the mist The droplets are transferred to the temperature gradient heating furnace for heating. At this time, the water vapor in the droplets gradually evaporates, and the energetic materials in the droplets begin to eutectic, and the nitrogen gas continues to carry the droplets containing eutectic crystals to the high-voltage elect...

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Abstract

The invention discloses a method and a device for preparing a nanometer-eutectic energetic material. The method comprises the following steps that an energetic material is dissolved in a good solvent and then is transported into a temperature gradient heating furnace through inert gases in an ultrasonic spray manner, and then nanometer-eutectic energetic material crystals are collected through a high-voltage electrostatic field and the good solvent and the inert gases are cooled and recovered. The device used in the method is formed by sequentially communicating an ultrasonic device, the temperature gradient heating furnace, the high-voltage electrostatic field and a receiving device in a sealing manner. The method can prepare the energetic material crystals with the crystal size being 20-1000nm, is wide in preparation range, and can realize continuous operation. The preparation method is simple in procedures and is easy to operate, reaction conditions are mild and are easily controlled, and the method can be applied to various kinds of eutectic explosives. The crystal grains of the prepared nanometer-eutectic energetic explosives are uniform, and the purity is larger than 99.9 percent. Waste liquid in the preparation procedures is recovered, and the minimum pollution to the environment is realized.

Description

technical field [0001] Embodiments of the present invention relate to the field of energetic materials, and more specifically, embodiments of the present invention relate to a method and device for preparing nanoscale eutectic energetic materials. Background technique [0002] Eutectic technology is a new scientific method to redesign the crystal structure from the molecular level to overcome the shortcomings of a single crystal. The structure determines the properties, and the co-crystal technology developed by biopharmaceuticals breaks through the limitations of single crystals in terms of biological performance. Eutectic crystals achieve the purpose of improving their own properties by changing the structure of crystalline substances at the molecular level. A large number of experiments have shown that co-crystal drugs can greatly increase the solubility of drugs, thereby improving the bioavailability of drugs and reducing pain for patients. In addition, eutectic techno...

Claims

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Application Information

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IPC IPC(8): B01D9/02C06B25/32C06B25/34C06B25/04C06B25/00C06B29/22
Inventor 聂福德高冰王敦举王军谯志强杨光成
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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