High-molecular fluorine-rich oxidant-based aluminothermic high-explosion-heat industrial explosive and preparation method thereof

A technology of industrial explosives and polymers, applied in the direction of explosives, non-explosive/non-thermal agent components, non-explosive fillers/gelling agents/thickeners, etc. Insufficient capacity and other problems, to achieve the effect of low mechanical and electrostatic sensitivity, safe and controllable process, and improved blasting capacity

Inactive Publication Date: 2021-10-29
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 high-molecular fluorine-rich oxidant-based thermite high-explosive thermal industrial explosive and its preparation method, which aims to solve the problem of high pollution, high sensitivity, low safety in the production and transportation process of the current industrial explosives and the high-molecular-rich explosives. The low detonation heat of fluorine oxidizer-based reactive materials results in insufficient detonation capability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of polymer fluorine-rich oxidant-based thermite high-explosive thermal industrial explosives, the specific steps are as follows:

[0027] (1) premixed

[0028] 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. .

[0029] (2) Granulation

[0030] 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, 8 parts of copper oxide, and 60 parts of polyvinylidene fluoride powder into the solution, and stir for 2 hours to obtain Binder coated reducing agent dispersion. Among them, the particle size of copper oxide is 30 μm, and the particle size of polyvinylidene fluoride powder is 160 ...

Embodiment 2

[0033] A preparation method of polymer fluorine-rich oxidant-based thermite high-explosive thermal industrial explosives, the specific steps are as follows:

[0034] (1) premixed

[0035] Under the protection of an inert atmosphere, mix 30 parts of spherical magnesium powder and 10 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. .

[0036] (2) Granulation

[0037] Add 3 parts of phenolic resin (molecular weight 1000 to 3000) into ethyl acetate, stir until completely dissolved, and disperse the above-mentioned mixture of 40 parts of active metal powder, 15 parts of iron oxide, and 42 parts of polytetrafluoroethylene powder into the solution , and stirred for 2 hours to obtain a dispersion of binder-coated reducing agent. Among them, the particle size of iron oxide is 30 μm, and the particle size of po...

Embodiment 3

[0040] A preparation method of polymer fluorine-rich oxidant-based thermite high-explosive thermal industrial explosives, the specific steps are as follows:

[0041] (1) premixed

[0042] 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. .

[0043] (2) Granulation

[0044] 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 ferric oxide, and 45 parts of polytetrafluoroethylene powder into the solution, and stir for 2 hours , to obtain a binder-coated reducing agent dispersion. Among them, the particle size of ferric oxide is 30 μm, and the particle size of polytetrafluoroethylene powder is 160 μm.

[00...

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Abstract

The invention relates to a high-molecular fluorine-rich oxidant-based aluminothermic high-explosion-heat industrial explosive and a preparation method thereof, a high-molecular fluorine-rich oxidant, an active metal reducing agent, an aluminothermic high-explosion-heat additive and a binder are taken as main components, and the high-molecular fluorine-rich oxidant-based aluminothermic high-explosion-heat industrial explosive 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. The aluminothermic high-explosion-heat reactant is added on the basis of a macromolecular fluorine-rich oxidant reaction material, so that the explosion heat of the explosive is remarkably improved, and the explosion capacity of a product is favorably improved.

Description

technical field [0001] The invention relates to a polymer fluorine-rich oxidant-based thermite high-explosive thermal industrial explosive and a preparation method thereof, belonging to the technical field of civil explosives. Background technique [0002] Polymer fluorine-rich oxidant is a kind of polymer with high fluorine content. It can form energy storage materials with high reaction calorific value with active metals such as magnesium and aluminum, and the reaction does not require the participation of external air. Materials and other aspects have good application prospects. Another notable advantage is that the reaction system is sulfur-free, nitrogen-free, and phosphorus-free, and it is insensitive to unexpected stimuli such as mechanical impact, friction, and static electricity, and has extremely excellent safety performance. However, compared with nitro-type energetic substances, since the system does not contain explosive groups such as nitro and nitroso groups,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B27/00C06B23/00
CPCC06B27/00C06B23/00C06B23/001
Inventor 束庆海吴启才
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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