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Coated molecular perovskite energetic material and preparation method thereof

A perovskite and molecular technology, applied in offensive equipment, non-explosive/non-thermal agent components, non-explosive filler/gelling agent/thickener, etc., can solve the problem of high sensitivity of molecular perovskite energetic materials, Achieving a good sense of reduction advantage, which is conducive to the effect of amplifying production and improving safety performance

Active Publication Date: 2022-03-08
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a kind of coated molecular perovskite energetic material and its preparation method, which realizes the surface coating of molecular perovskite energetic material, Effectively solve the problem of high sensitivity of molecular perovskite energetic materials

Method used

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  • Coated molecular perovskite energetic material and preparation method thereof
  • Coated molecular perovskite energetic material and preparation method thereof
  • Coated molecular perovskite energetic material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A kind of encapsulating molecular perovskite energetic material, based on the overall mass of the encapsulating molecular perovskite energetic material being 100%, wherein, each raw material component and its mass fraction are as follows:

[0030] Binder Estane-5703: 0.5%;

[0031] Molecular perovskite energetic material DAP-4: 99.5%.

[0032] The specific steps of the preparation method of the above-mentioned coated molecular perovskite energetic material are as follows:

[0033] Step A: Dissolve 0.025g of Estane-5703 in 15ml of 1,2-dichloroethane, sonicate until completely dissolved to obtain Estane-5703 solution;

[0034] Step B. Gently grind the molecular perovskite energetic material DAP-4 with an agate mortar, crush its hard agglomerates, and then add 4.975g of DAP-4 particles into the Estane-5703 solution, and after ultrasonic dispersion, DAP-4 Disperse evenly in the solution;

[0035] Step C. Put the suspension of DAP-4 in a water bath at 50-60°C to stir and ...

Embodiment 2

[0038] A kind of encapsulating molecular perovskite energetic material, based on the overall mass of the encapsulating molecular perovskite energetic material being 100%, wherein, each raw material component and its mass fraction are as follows:

[0039] Binder Estane-5703: 5%;

[0040] Molecular perovskite energetic material DAP-4: 95%.

[0041] The specific steps of the preparation method of the above-mentioned coated molecular perovskite energetic material are as follows:

[0042] Step A. Dissolve 0.25g of Estane-5703 in 15ml of 1,2-dichloroethane, and sonicate until completely dissolved to obtain Estane-5703 solution;

[0043] Step B. Gently grind the molecular perovskite energetic material DAP-4 with an agate mortar, crush its hard agglomerates, and then add 4.75g of DAP-4 particles into the Estane-5703 solution, and disperse it by ultrasonic to make DAP-4 Disperse evenly in the solution;

[0044] Step C. Put the suspension of DAP-4 in a water bath at 50-60°C to stir a...

Embodiment 3

[0047] A kind of encapsulating molecular perovskite energetic material, based on the overall mass of the encapsulating molecular perovskite energetic material being 100%, wherein, each raw material component and its mass fraction are as follows:

[0048] Binder Estane-5703: 15%;

[0049] Molecular perovskite energetic material DAP-4: 85%.

[0050] The specific steps of the preparation method of the above-mentioned coated molecular perovskite energetic material are as follows:

[0051] Step A. Dissolve 0.75g of Estane-5703 in 15ml of 1,2-dichloroethane, sonicate until completely dissolved to obtain Estane-5703 solution;

[0052] Step B. Gently grind the molecular perovskite energetic material DAP-4 with an agate mortar, crush its hard agglomerates, and then add 4.25g of DAP-4 particles into the Estane-5703 solution, and disperse it by ultrasonic to make DAP-4 Disperse evenly in the solution;

[0053] Step C. Put the suspension of DAP-4 in a water bath at 50-60°C to stir and ...

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Abstract

The invention provides a molecular perovskite-coated energetic material and a preparation method thereof, and belongs to the technical field of energetic material preparation, the molecular perovskite-coated energetic material is a microscopic coating structure with a binder-coated molecular perovskite energetic material; based on the total mass of the coated molecular perovskite energetic material being 100%, the coated molecular perovskite energetic material comprises 0.5%-15% of a binder and 85%-99.5% of a molecular perovskite energetic material. The coated molecular perovskite energetic material has a low polymer binder coating amount, the safety performance of the coated molecular perovskite energetic material is greatly improved while the mass ratio of the molecular perovskite energetic material is not significantly reduced, and a mechanical sensitivity evaluation result shows that the coated molecular perovskite energetic material has a good application prospect. The mechanical sensitivity of the molecular perovskite energetic material can be improved by 30%-300% compared with that of molecular perovskite energetic material raw material particles; compared with the friction sensitivity explosion probability of raw material particles of the molecular perovskite energetic material, the friction sensitivity explosion probability of the molecular perovskite energetic material is reduced to 30%-90%, so that the method has a good sensitivity reduction advantage, and sensitivity reduction and application of the molecular perovskite energetic material can be promoted.

Description

technical field [0001] The invention belongs to the technical field of preparation of energetic materials, and in particular relates to an energetic material coated with molecular perovskite and a preparation method thereof. Background technique [0002] Molecular perovskite energetic material is a new type of energetic material synthesized by Chen Xiaoming for the first time in 2018. Because of its high detonation performance and cost-effective advantages, it has attracted extensive attention in the field of explosives. As a typical representative of molecular perovskite energetic materials (H 2 dabco)[NH 4 (ClO 4 ) 3 ] (DAP-4) as an example, a small number of relevant units in the domestic propellant and explosives industry have carried out the performance evaluation and optimization of molecular perovskite energetic materials, and the initial exploration of application research. The research shows that the measured detonation heat value of DAP-4 is 5.691 kJ / g, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B45/32C06B45/22C06B29/22C06B29/08C06B23/00
CPCC06B45/32C06B45/22C06B29/22C06B29/08C06B23/001
Inventor 曹雄邓鹏安二海胡双启谭迎新
Owner ZHONGBEI UNIV
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