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A kind of preparation method of the host-guest explosive of in-situ self-assembly ozone molecule

An in-situ preparation and self-assembly technology, applied in ozone preparation, explosives processing equipment, explosives, etc., can solve the problems of short half-life of ozone molecules, inability to obtain, etc., to achieve convenient processing, molding and use, excellent safety performance, and conducive to batch production The effect of preparation

Active Publication Date: 2021-04-06
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

Although this method can embed a variety of small gas molecules into the explosive unit cell under mild experimental conditions, the time of gas purging in this method usually takes several hours or even longer, and the half-life of ozone molecules is short. decomposes to form O 2 numerator, resulting in the inability to obtain HNIW / O 3 The amount of host-guest explosive crystal or embedding is very small, so it is necessary to explore a host-guest explosive preparation technology that can efficiently embed ozone molecules in situ inside the unit cell

Method used

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  • A kind of preparation method of the host-guest explosive of in-situ self-assembly ozone molecule
  • A kind of preparation method of the host-guest explosive of in-situ self-assembly ozone molecule
  • A kind of preparation method of the host-guest explosive of in-situ self-assembly ozone molecule

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] figure 1 Is a kind of HNIW / O of the present invention 3 Flowchart of the preparation method of the host-guest explosive.

[0028] (1) Weigh 1g of HNIW explosive powder into the sample chamber of the large press, put the plunger and sleeve of the large press together, leaving a small amount of gaps, and then put it into the copper tank and put the lid on the copper pot;

[0029] (2) Put the above tank into liquid nitrogen, use the air inlet on the top of the cover to pass oxygen into the inside of the tank, and the oxygen will gradually liquefy at low temperature. After the liquid oxygen is submerged in the press, close the oxygen valve, and then Open the lid of the tank, tighten the pressure screw on the large press, so that the liquid oxygen flowing into the large press is encapsulated in the sample chamber containing the HNIW explosive, and use the laser marking pressure gauge to characterize the pressure value on the anvil, which shows The pressure at this time is...

Embodiment 2

[0034] (1) Weigh 1g of HNIW explosive powder into the sample chamber of the large press, put the plunger and sleeve of the large press together, leaving a small amount of gaps, and then put it into the copper tank and put the lid on the copper pot;

[0035] (2) Put the above-mentioned tank body into liquid helium, use the air inlet above the cover to pass oxygen into the inside of the tank body, the oxygen will gradually liquefy at low temperature, and after the liquid oxygen is submerged in the press, close the oxygen valve, and then Open the lid of the tank, tighten the pressure screw on the large press, so that the liquid oxygen flowing into the large press is encapsulated in the sample cavity containing explosives, and use the laser marking pressure gauge to characterize the pressure on the anvil, which shows that When the pressure is 1GPa;

[0036] (3) Turn on the power supply of the tip electrode laid in advance in the sample cavity of the large press, turn on the elect...

Embodiment 3

[0039] (1) Weigh 0.2g of HNIW explosive powder and put it into the sample cavity of the diamond counter anvil, put the plunger and the sleeve of the counter anvil together, leaving a small amount of gap, and then put it into the copper anvil In the tank and cover the lid of the copper tank;

[0040] (2) Put the above-mentioned tank body into liquid nitrogen, use the air inlet above the lid to pass oxygen into the inside of the tank body, and the oxygen will gradually liquefy at low temperature. After the liquid oxygen has passed through the anvil, close the oxygen valve, and then Open the lid of the tank, tighten the pressure screw on the counter-anvil, so that the liquid oxygen flowing into the counter-anvil is encapsulated in the sample cavity containing explosives, and use the laser marking gauge to characterize the counter-anvil pressure value, which shows that When the pressure is 1.5GPa;

[0041] (3) Turn on the power supply of the tip electrode laid in the opposite anv...

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Abstract

The invention discloses a method for preparing a host-guest explosive that self-assembles ozone molecules in situ. Oxygen molecules and HNIW are co-loaded into the cavity of a pressurization device, ozone molecules are prepared in situ by pulse tip discharge, and then the ozone molecules are made Molecules are embedded in the unit cell of HNIW, thus obtaining host-guest explosives self-assembled by HNIW and ozone molecules. The method of the present invention enables oxygen molecules to generate ozone molecules in situ in the pressurization device through pulse electrode tip discharge, and the ozone molecules are self-assembled and embedded in the HNIW explosive unit cells in situ by pressurization, effectively solving the problem of short half-life of ozone molecules, making Ozone molecules can be embedded in the explosive unit cell after in-situ synthesis, which realizes the efficient and high-content embedding of ozone molecules. The HNIW and O in the obtained host-guest explosives 3 The molar ratio of the molecules reaches 2:1.

Description

technical field [0001] The invention relates to the technical field of preparation methods of high-energy explosives, in particular to a preparation method of host-guest explosives that self-assemble ozone molecules in situ. Background technique [0002] The energy and safety of energetic materials directly determine the performance level of weapons. Hexanitrohexaazaisowurtzitane (HNIW or CL-20) is the elemental explosive with the highest energy that has been practically used, and its molecular formula is C 6 h 6 N 12 o 12 , the detonation velocity of ε-HNIW with the highest density and energy reaches 9450m·s -1 , the detonation velocity of α-HNIW is also close to 9280m·s -1 . HNIW not only has high energy, but also has good detonation and transmission performance. Therefore, structural optimization and performance improvement based on HNIW may greatly improve the performance of explosives. [0003] Scholars at home and abroad have developed a variety of technical me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B25/34C06B21/00C01B13/11
CPCC01B13/11C06B21/00C06B25/34
Inventor 徐金江孙杰田勇李洁张浩斌
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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