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Nano energetic material based on thermal solvent molecule induction controllable growth and preparation method thereof

A hot solvent and nanotechnology, applied in the field of nano energetic materials and their preparation, can solve the problems of difficult fine-tuning of grain size and shape, complicated technical process, etc., and achieve the effect of easy amplification, simple process and no filtration

Active Publication Date: 2020-01-03
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] The purpose of the present invention is to provide a nano energetic material based on thermal solvent molecule-induced controllable growth and its preparation method, which is used to solve the problem that the existing preparation technology is complex and difficult to finely regulate the grain size and morphology

Method used

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  • Nano energetic material based on thermal solvent molecule induction controllable growth and preparation method thereof
  • Nano energetic material based on thermal solvent molecule induction controllable growth and preparation method thereof

Examples

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Effect test

Embodiment 1

[0021] The preparation process of the present invention is as figure 1 As shown, take by weighing nanometer TATB explosive 1g, it is put into the polytetrafluoroethylene container that volume is 20ml. Measure 5ml of ethanol with a graduated cylinder, and pour it into a Teflon container with a volume of 100ml. Gently place the polytetrafluoroethylene containing nano-TATB in the polytetrafluoroethylene container containing ethanol with tweezers, and cover the lid so that the nano-TATB explosive is sealed in the polytetrafluoroethylene container containing ethanol. Subsequently, the device was put into an oven, and the temperature was raised to 60 °C at a rate of 10 °C / min. The ethanol in the container volatilized and reached a stable saturated vapor pressure. After keeping the temperature for five days, the temperature was lowered to room temperature at a cooling rate of 10°C / min. The device is taken out, the bottle cap is opened, and the polytetrafluoroethylene container cont...

Embodiment 2

[0023] Weigh 1g of nanometer TATB explosive and put it into a polytetrafluoroethylene container with a volume of 20ml. Measure 10ml of dimethyl sulfoxide (DMSO) with a graduated cylinder, and pour it into a polytetrafluoroethylene container with a capacity of 100ml. Use tweezers to gently place the polytetrafluoroethylene containing nano-TATB in a polytetrafluoroethylene container containing dimethyl sulfoxide (DMSO) solvent, and cover the lid to seal the nano-TATB explosive in the container containing dimethyl sulfoxide (DMSO). in a polytetrafluoroethylene container of sulfone (DMSO) solvent. Subsequently, the device was put into an oven, and the temperature was raised to 80°C at a rate of 5°C / min. The dimethyl sulfoxide (DMSO) solvent in the container volatilized and reached a stable saturated vapor pressure. Under the induction of DMSO solvent thermal molecules, The nano-TATB particles gradually grew up in situ. After two days of constant temperature, the temperature was l...

Embodiment 3

[0025] Weigh 1 g of nanometer LLM-105 explosive and put it into a polytetrafluoroethylene container with a volume of 20 ml. Measure 5ml of ethanol with a graduated cylinder, and pour it into a Teflon container with a volume of 100ml. Gently place the polytetrafluoroethylene containing nano-LLM-105 in the polytetrafluoroethylene container containing ethanol with tweezers, and cover the lid so that the nano-LLM-105 explosive is sealed in the polytetrafluoroethylene container containing ethanol . Subsequently, the device was put into an oven, and the temperature was raised to 65°C at a rate of 10°C / min. The ethanol in the container volatilized and reached a stable saturated vapor pressure. Under the thermal molecular induction of the ethanol solvent, the nano LLM-105 particles gradually After growing up, keep the temperature for five days, and then lower the temperature to room temperature at a cooling rate of 10°C / min. Take out the device, open the bottle cap, put the polytetr...

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Abstract

The invention provides a nano energetic material based on thermal solvent molecule induction controllable growth and a preparation method thereof. The method comprises the following steps: a nano energetic material is placed in an open container, the open container is placed in a closed container containing a solvent, the nano energetic material does not make direct contact with the solvent, the temperature is kept constant after the nano energetic material is heated to a certain temperature, the solvent volatilizes and reaches the saturated vapor pressure stable state of the solvent, and thenano energetic material grows under the induction of saturated vapor pressure solvent molecules. Crystal growth size and morphology are regulated and controlled by controlling temperature, solvent type and reaction time, the open container is taken out and put into a drying oven to be dried, and energetic material particles with different particle sizes and morphologies can be obtained. The preparation method for controllable growth of the nano energetic material has the advantages of simple process, good repeatability, easiness in mass production, cleanness, environmental protection and the like, and provides a new thought for synthesizing energetic materials with different particle sizes and morphologies.

Description

technical field [0001] The invention belongs to the field of energetic material preparation, and in particular relates to a nano energetic material based on thermal solvent molecule-induced controllable growth and a preparation method thereof. application prospects. Background technique [0002] The nanonization of energetic materials can not only improve the safety of explosives, but also greatly increase the detonation performance and charge strength, making the preparation, performance research and application promotion of nano energetic materials in weapon systems have received extensive attention. With the large-scale application of micro-nano energetic materials in various weapons and ammunition in the future, during the long-term storage process, the micro-nano energetic materials will inevitably evolve under the coupling effects of temperature, humidity and atmosphere, and grain growth will occur. ripening problem. Studies have shown that the microstructure of expl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/06C06B25/34B82Y30/00
CPCB82Y30/00C06B25/06C06B25/34
Inventor 宫正涂小珍曾贵玉韦承莎曹可周美林韦兴文
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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