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Safe ignition powder and preparation method thereof

A safety point and gunpowder technology, applied in explosives, offensive equipment, inorganic oxyhalide salt explosive composition, etc., can solve the problems of single types of hydrogen storage materials and unsatisfactory applications, and achieve simple preparation process, simple and easy operation, The effect of reducing sensitivity

Active Publication Date: 2015-12-16
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the types of hydrogen storage materials used in ignition powder are single, which cannot meet the needs of applications.

Method used

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  • Safe ignition powder and preparation method thereof
  • Safe ignition powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A safe ignition powder, the mass of each component in the formula is: 20g carbon black, 45g potassium nitrate, 10g lithium borohydride, 24g coated calcium peroxide and 1g hydroxyl-terminated polybutadiene.

[0030] A kind of preparation method of safety ignition powder, concrete steps are as follows:

[0031] 1) 0.5g styrene is dissolved in anhydrous tetrahydrofuran, completely dissolved to form a liquid glue with a mass fraction of 0.5%;

[0032] 2) Add 80g of calcium peroxide to 300ml of anhydrous tetrahydrofuran, clean and vibrate for 30min with ultrasonic cleaning, then add 160g of the liquid glue obtained in 1) dropwise under the condition of stirring at 500r / min to obtain a mixed solution, in which the liquid glue The dropping rate is 30 drops / min;

[0033] 3) then filter, dry, and cross a 200-mesh sieve to obtain coated calcium peroxide with a particle diameter≤0.075mm;

[0034] 4) Weigh 20g carbon black, 45g potassium nitrate, 10g lithium borohydride, 24g coat...

Embodiment 2

[0039] A safe ignition powder, the quality of each component in its formula is: 22g of carbon black, 37g of potassium perchlorate, 12g of sodium borohydride, 21g of coated calcium peroxide and 8g of polyazide glycidyl ether.

[0040] A kind of preparation method of safety ignition powder, concrete steps are as follows:

[0041] 1) Dissolve 4g polyethylene in anhydrous acetone, dissolve completely, and form a liquid glue with a mass fraction of 4%;

[0042] 2) Add 50g of calcium peroxide to 300ml of anhydrous dioxane, and after ultrasonically cleaning and vibrating for 30min, add 100g of the liquid glue obtained in 1) dropwise under the condition of stirring at 500r / min to obtain a mixed solution, Wherein the dropping rate of liquid glue is 30 drops / min;

[0043] 3) then filter, dry, and cross a 200-mesh sieve to obtain coated calcium peroxide with a particle diameter≤0.075mm;

[0044] 4) Weigh 22g carbon black, 37g potassium perchlorate, 12g sodium borohydride, 21g coated ca...

Embodiment 3

[0049] A kind of safety ignition powder, the quality of each component in its formula is: 36g carbon black, 32g barium nitrate, 10g sodium borohydride, 15g coated calcium peroxide and 7g 3-azidomethyl butylene oxide .

[0050] A kind of preparation method of safety ignition powder, concrete steps are as follows:

[0051] 1) Dissolve 3g of fluorosilicone rubber in anhydrous dioxane, dissolve completely, and form a liquid glue with a concentration of 3%;

[0052] 2) Add 45g of calcium peroxide to 300ml of anhydrous dioxane, and after ultrasonic cleaning and vibration for 30min, add 90g of the liquid glue obtained in 1) dropwise while stirring at 400r / min to obtain a mixed solution, Wherein the dropping rate of liquid glue is 30 drops / min;

[0053] 3) then filter, dry, and cross a 200-mesh sieve to obtain coated calcium peroxide with a particle diameter≤0.075mm;

[0054] 4) Weigh 36g carbon black, 32g barium nitrate, 10g sodium borohydride, 15g coated calcium peroxide and mix un...

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Abstract

The invention relates to a safe ignition powder and a preparation method thereof, belonging to the field of energetic materials. The safe ignition powder comprises 20 to 40% of carbon black, 30 to 50% of an oxidizing agent, 15 to 30% of coated calcium peroxide, 5 to 15% of hydroborate and 1 to 8% of a binder A. The safe ignition powder provided by the invention has high safety; and coated calcium peroxide prevents reaction of calcium peroxide with hydroborate and obstructs reaction of calcium peroxide with other components caused by collision and friction, so sensitivity is reduced, and safety in transportation and usage of the safe ignition powder is improved. The preparation method is simple, does not need complex equipment, is simple and easily practicable to operate and facilitate continuous production.

Description

technical field [0001] The invention relates to a safe ignition powder and a preparation method, belonging to the field of energetic materials. Background technique [0002] Ignition powder is the first charge in gunpowder, pyrotechnics and pyrotechnics, and plays an extremely important role in conventional weapons, strategic weapons and aerospace systems. The function of the ignition powder is to ignite gunpowder, pyrotechnics or pyrotechnics. Therefore, the ignition powder can undergo a rapid chemical reaction under the action of external energy, releasing a large amount of heat, gas and solid matter. At the same time, in order to ensure production and transportation In order to ensure safety during use, the ignition powder should have a lower sensitivity. [0003] There are many kinds of igniting powder, generally composed of charcoal, metal powder or metal oxide and oxidant, but there are certain shortcomings. Charcoal ignition powder is generally composed of charcoal ...

Claims

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Application Information

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IPC IPC(8): C06B31/06C06B29/12C06B29/22
Inventor 刘吉平毕晓露韩钊武刘晓波韩开晋苏岩
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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