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A barium-based energetic metal-organic framework directly detonated by 800nm ​​laser, preparation method and application

A metal-organic framework and laser direct technology, applied in the direction of offensive equipment, igniter, detonator, etc., can solve the problems of accidental explosion, personnel and property loss, etc., and achieve the effect of low ignition time, high product quality and simple process flow

Active Publication Date: 2022-06-21
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

[0002] At present, the primary explosives used in my country mainly include lead azide, metal salts of picric acid and styphonic acid, etc., but most of these primary explosives are extremely sensitive to external stimuli, often causing accidental explosions, resulting in heavy losses of personnel and property

Method used

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  • A barium-based energetic metal-organic framework directly detonated by 800nm ​​laser, preparation method and application
  • A barium-based energetic metal-organic framework directly detonated by 800nm ​​laser, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1: Put 118 mg of 5,5'-bitetrazole-1,1'-dioxohydroxyammonium salt and 104 mg of barium chloride weighed into a sealable reaction kettle prepared from polytetrafluoroethylene, Add 15ml of distilled water to obtain turbid liquid;

[0024] Step 2: Seal the autoclave and place it in a pressurized steel jacket and tighten the steel jacket. and put it into a constant temperature crystal incubator;

[0025] Step 3: Set the target temperature of the constant temperature crystal incubator to 120°C, use the programmed temperature rise method to raise the temperature of the constant temperature crystal incubator to the target temperature at a heating rate of 10°C / min, keep the temperature for 48 hours, and then use the programmed cooling method to 3°C / min to return the temperature to room temperature. Using a hydrothermal method with a higher temperature, the ligand and the metal ion can react as quickly and completely as possible to obtain high-yield and high-purity crysta...

Embodiment 2

[0032] Step 1: Put 118 mg of 5,5'-bitetrazole-1,1'-dioxohydroxyammonium salt and 130 mg of barium nitrate weighed into a sealable reaction kettle made of polytetrafluoroethylene, add 10ml distilled water to obtain turbid liquid;

[0033] Step 2: Seal the autoclave and place it in a pressurized steel jacket and tighten the steel jacket. and put it into a constant temperature crystal incubator;

[0034] Step 3: Set the target temperature of the constant temperature crystal incubator to 140°C, use the programmed temperature rise method to raise the temperature of the constant temperature crystal incubator to the target temperature at a heating rate of 10°C / min, keep the temperature for 48 hours, and then use the programmed cooling method to 3°C / min to return the temperature to room temperature.

[0035] Step 4: When the temperature of the incubator drops to room temperature, the reaction kettle can be opened, and the colorless and transparent crystals in the liquid can be obse...

Embodiment 3

[0041] Step 1: Put the weighed 236 mg of 5,5'-bitetrazole-1,1'-dioxyhydroxyammonium salt and 261 mg of barium nitrate into a sealable reaction kettle made of polytetrafluoroethylene, add 30ml distilled water to obtain turbid liquid;

[0042] Step 2: Seal the autoclave and place it in a pressurized steel jacket and tighten the steel jacket. and put it into a constant temperature crystal incubator;

[0043] Step 3: Set the target temperature of the constant temperature crystal incubator to 150°C, use the programmed temperature rise method to raise the temperature of the constant temperature crystal incubator to the target temperature at a heating rate of 10°C / min, keep the temperature for 48 hours, and then use the programmed cooling method to 3°C / min to return the temperature to room temperature.

[0044] Step 4: When the temperature of the incubator drops to room temperature, the reaction kettle can be opened, and the colorless and transparent crystals in the liquid can be ...

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Abstract

The invention discloses a barium-based energetic metal-organic framework directly detonated by an 800nm ​​laser, a preparation method and an application thereof, and its chemical formula is [Ba(BTO)(H 2 O)] n , where BTO is a 5,5'-tetrazole-1,1'-dioxanion ligand. Including the following steps: Step 1: Energy-containing metal-organic framework material [Ba(BTO)(H 2 O)] n Preparation; Step 2: Based on the energetic metal-organic framework material [Ba(BTO)(H 2 O)] n Production of laser detonators; step 3: use 800nm ​​nanosecond laser to conduct laser direct detonation performance experiments, and obtain detonation characteristic parameters.

Description

technical field [0001] The invention relates to the technical field of novel energetic materials, in particular to a barium-based energetic metal organic framework directly detonated by an 800 nm laser, a preparation method and an application. Background technique [0002] At present, the primary explosives used in our country mainly include lead azide, picric acid and metal salts of stearic acid, etc. However, most of these primary explosives are extremely sensitive to external stimuli, often causing accidental explosion accidents, resulting in heavy losses of personnel and property. Therefore, it is necessary to urgently seek new varieties of detonators that are safer in production and use. They should have characteristic sensitivity and can be reliably ignited or detonated by flames, electric heating wires, and lasers. impact, friction, etc.) are more insensitive. [0003] All over the world, researchers in this field are working hard to develop new types of safe detonat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C06C15/00C06C7/02
CPCC08G83/008C06C15/00C06C7/02
Inventor 张祺陈东李洪珍
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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