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Sensitized fluorine-rich oxidant-based industrial explosive and preparation method thereof

A technology of industrial explosives and oxidizers, which is applied in explosives processing equipment, explosives, offensive equipment, etc. It can solve the problems of fluorine-rich oxidizer-based reaction materials insensitivity to heat, large pollution of industrial explosives, and low safety, so as to improve the reliability of detonation performance, improved reaction stability, and high safety

Inactive Publication Date: 2021-11-02
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention discloses a sensitized fluorine-rich oxidant-based industrial explosive and its preparation method, which aims to solve the problems of current industrial explosives with large pollution, high sensitivity, low safety during production and transportation, and fluorine-rich oxidant-based reaction materials that are too sensitive to heat. blunt problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of sensitized fluorine-rich oxidant-based industrial explosives, the specific steps are as follows:

[0029] (1) Sensitization

[0030] Add silane coupling agent KH550 and boron powder into ethyl acetate according to the mass ratio of 2:98, stir for 1 h, filter and dry to obtain modified boron powder; wherein, the particle size of boron powder is 10 μm;

[0031] (2) Premix

[0032] Under the protection of an inert atmosphere, mix 22 parts of spherical magnesium powder and 8 parts of spherical aluminum powder in a V-type mixer for 1 hour to obtain a mixture of active metal powders; wherein, the particle size of the magnesium powder is 10 μm, and the particle size of the aluminum powder is 40 μm. .

[0033] (3) Granulation

[0034] Add 2 parts of fluororubber 5702 into ethyl acetate, stir until completely dissolved, and disperse the above-mentioned mixture of 30 parts of active metal powder, 5 parts of modified boron powder, and 63 parts of perfluo...

Embodiment 2

[0037] A preparation method of sensitized fluorine-rich oxidant-based industrial explosives, the specific steps are as follows:

[0038] (1) Sensitization

[0039] Add silane coupling agent KH550 and magnesium powder into ethyl acetate according to the mass ratio of 2:98, stir for 1 hour, filter and dry to obtain modified magnesium powder; wherein, the particle size of magnesium powder is 10 μm;

[0040] (2) Premix

[0041] Under the protection of an inert atmosphere, mix 35 parts of spherical magnesium powder and 12 parts of spherical aluminum powder in a V-type mixer for 1 hour to obtain a mixture of active metal powders; wherein, the particle size of the magnesium powder is 10 μm, and the particle size of the aluminum powder is 40 μm. .

[0042] (3) Granulation

[0043] Add 3 parts of phenolic resin (molecular weight 1000 to 3000) into ethyl acetate, stir until completely dissolved, and disperse the above 47 parts of active metal powder mixture, 5 parts of modified magne...

Embodiment 3

[0046] A preparation method of sensitized fluorine-rich oxidant-based industrial explosives, the specific steps are as follows:

[0047] (1) Sensitization

[0048] Add silane coupling agent KH550 and boron powder into ethyl acetate according to the mass ratio of 2:98, stir for 1 h, filter and dry to obtain modified boron powder; wherein, the particle size of boron powder is 10 μm;

[0049] (2) Premix

[0050] Under the protection of an inert atmosphere, mix 32 parts of spherical magnesium powder and 11 parts of spherical aluminum powder in a V-type mixer for 1 hour to obtain a mixture of active metal powders; wherein, the particle size of the magnesium powder is 10 μm, and the particle size of the aluminum powder is 40 μm. .

[0051] (3) Granulation

[0052] Add 2 parts of fluororubber 5702 into ethyl acetate, stir until completely dissolved, and disperse the mixture of 43 parts of active metal powder, 10 parts of modified boron powder, and 45 parts of polytetrafluoroethyle...

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PUM

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Abstract

The invention relates to a sensitized fluorine-rich oxidant-based industrial explosive and a preparation method thereof, and belongs to the technical field of civil explosion. The sensitized fluorine-rich oxidant-based industrial explosive mainly comprises a fluorine-rich oxidant, an active metal reducing agent, a sensitizer and a binder. The product eliminates the situation that nitrate, black powder, low-detonation-velocity high explosive and other substances which are extremely harmful to the environment and high in sensitivity are widely used in traditional industrial explosive components. The obtained product has the advantages of no sulfur, no nitrogen, slight smoke, low sensitivity and the like, and can be widely applied to production of industrial explosives. A sensitizer is added on the basis of a fluorine-rich oxidant reaction material, so that the reaction stability of the material is improved, and the detonation reliability of a product is favorably improved.

Description

technical field [0001] The invention relates to a sensitized fluorine-rich oxidant-based industrial explosive and a preparation method thereof, belonging to the technical field of civil explosives. Background technique [0002] The fluorine-rich oxidant has good compatibility with combustible agents, additives, emulsifiers, foaming agents and other substances commonly used in industrial explosives, and has excellent long-term storage performance. It can be mixed with active metals in a certain proportion and granulated to form a self- The maintained active reactive material is a new type of insensitive energetic material with good application prospects. However, the composite energetic material formed by the fluorine-rich oxidant and the active metal has a high activation energy for the reaction, and the reaction undergoes a complex process from initiation, aggregation, deflagration, and detonation-like, which can only be achieved after sufficient heat accumulation. Expecte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B33/02C06B21/00
CPCC06B33/02C06B21/0066
Inventor 束庆海吴启才
Owner BEIJING INSTITUTE OF TECHNOLOGYGY