1,2,4-triazole nitrate coated boron-magnesium composite metal powder fuel and preparation method thereof

A composite metal and nitrate technology, used in explosive composite components, attack equipment, explosive processing equipment, etc., can solve the problems of high oxygen consumption of boron, inability to exert high calorific value, and generate more residues, etc., to increase the combustion temperature, improve the Effect of improving combustion efficiency and heat release

Active Publication Date: 2020-05-12
HUZHOU TEACHERS COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) Boron consumes a lot of oxygen and produces a lot of residues, which cannot give full play to its high calorific value.

Method used

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  • 1,2,4-triazole nitrate coated boron-magnesium composite metal powder fuel and preparation method thereof
  • 1,2,4-triazole nitrate coated boron-magnesium composite metal powder fuel and preparation method thereof
  • 1,2,4-triazole nitrate coated boron-magnesium composite metal powder fuel and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0035] The preparation process of 1,2,4-triazole nitrate is as follows: in a nitrogen-filled drying oven, add 1.0458g, 15.1mmol of 1,2,4-triazole to a Schlenk flask, under nitrogen flow, under stirring conditions Add 13ml of anhydrous methanol, then carefully add 1.3925g, 15.2mmol of concentrated nitric acid, react at room temperature for 1h, transfer to a vacuum drying oven after the reaction is completed, and dry at room temperature for 24h, the white crystal product is the prepared 1,2,4-triazole nitrates.

[0036] In order to test the application performance of the boron-magnesium composite metal powder fuel coated with the energetic ion salt 1,2,4-triazole nitrate of this patent, the physical and chemical properties of the fuel were firstly characterized, and secondly, the fuel particles were added to the boron-rich Fuel propellants and boron-based ignition powders are prepared in the process of testing their combustion properties.

[0037] The boron-containing fuel-rich...

Embodiment 1

[0044] Taking the target product quality of 100g as an example, the amount and type of various raw materials required are: boron-magnesium composite metal powder (particle size 4.5 μm, boron content 93%) 78g, 1,2,4-triazole nitrate (purity 99 %) 21.2g, silane coupling agent KH5600.8g, methanol 1060ml. Accurately weigh quantitative 1,2,4-triazole nitric acid and KH560, dissolve in methanol, add boron-magnesium composite metal powder to the above solution under room temperature stirring conditions, fully stir, and evenly disperse to form a mixed suspension; The mixed suspension was evacuated in a four-neck flask under stirring at 45° C. until the surface was dry and semi-slurry. Take it out and move it to a vacuum oven for drying at 50°C until the boron-magnesium composite metal powder is in a relatively dry state. The above-mentioned boron-magnesium composite metal powder is sieved, classified and screened to form boron-magnesium composite metal powder fuel coated with energet...

Embodiment 2

[0046]Taking the target product quality of 100g as an example, the amount and type of various raw materials required are: boron-magnesium composite metal powder (particle size 4.5 μm, boron content 95%) 78g, 1,2,4-triazole nitrate (purity 99 %) 21.2g, silane coupling agent KH5600.8g, methanol 1060ml. Accurately weigh quantitative 1,2,4-triazole nitric acid and KH560, dissolve in methanol, add boron-magnesium composite metal powder to the above solution under room temperature stirring conditions, fully stir, and evenly disperse to form a mixed suspension; The mixed suspension was evacuated in a four-neck flask under stirring at 45° C. until the surface was dry and semi-slurry. Take it out and move it to a vacuum oven for drying at 50°C until the boron-magnesium composite metal powder is in a relatively dry state. The above-mentioned boron-magnesium composite metal powder is sieved, classified and screened to form boron-magnesium composite metal powder fuel coated with energeti...

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Abstract

The invention discloses a 1,2,4-triazole nitrate coated boron-magnesium composite metal powder fuel and a preparation method thereof. The fuel comprises, by weight, 70-80 parts of boron-magnesium composite metal powder, 20-30 parts of 1,2,4-triazole nitrate and 0.5-1 part of a silane coupling agent. The invention further discloses the preparation method of the 1,2,4-triazole nitrate coated boron-magnesium composite metal powder fuel. The preparation method comprises the steps of raw material metering, raw material solution preparation, boron-magnesium composite metal powder addition, vacuum drying, sieving and the like. When the fuel is added into a boron-containing fuel-rich propellant or ignition powder, the ignition temperature can be reduced, the combustion efficiency is improved, andthe characteristic of high heat of boron powder can be brought into full play.

Description

technical field [0001] The invention belongs to the technical field of solid propellants and ignition powder high-energy fuels, in particular to boron-magnesium composite metal powder fuel coated with 1,2,4-triazole nitrate and a preparation method thereof. Background technique [0002] Among various metal fuels that can be used in the fields of solid propellants and explosives, boron-magnesium composite metal powder has many advantages such as high mass calorific value, high volume calorific value, non-toxicity, non-toxic combustion products, and abundant resources. Research hotspots in the field of boron-rich fuel propellants and explosives. In the field of solid propellant and propellant and explosives, a large amount of addition can improve the volumetric specific impulse. Although the theoretical calorific value of boron-magnesium composite metal powder is very high, its actual test calorific value is very low. the reason is: [0003] (1) There is a layer of B on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B33/08C06B21/00
CPCC06B21/0008C06B33/08
Inventor 郝利峰曹枫
Owner HUZHOU TEACHERS COLLEGE
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