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Energetic polyoxide compound super-thermite and preparation method thereof

A technology of super thermite and polyoxide, applied in the direction of explosives, etc., can solve the problems of nano-aluminum powder incompatibility, high reactivity, easy agglomeration surface, etc., and achieve the effect of easy reaction process, high purity and high safety performance

Inactive Publication Date: 2015-05-20
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the incompatibility of nano-aluminum powder with organic solvents and the fact that it is easily corroded in air, acid, and alkaline media, and its extremely high reactivity makes it easy to agglomerate and the surface is easily oxidized to lose activity, making it a solid propellant. Therefore, the surface modification and active protection of nano-alumina powder have become the hotspots of current research.

Method used

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  • Energetic polyoxide compound super-thermite and preparation method thereof
  • Energetic polyoxide compound super-thermite and preparation method thereof
  • Energetic polyoxide compound super-thermite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 Al / PbO·CuO

[0036] (1) At room temperature, weigh PbNO respectively according to the molar ratio of 1:1:4 3 , Cu(NO 3 ) 2 ·3H 2 O and NaOH, first PbNO 3 and Cu(NO 3 ) 2 ·3H 2 O mixing, adding Tween-80 of 1% of the total mass as a dispersant, mixing and grinding;

[0037] (2) Add the finely ground NaOH to the mixture, and grind it thoroughly for 40 minutes at room temperature to complete the solid phase reaction; the product is washed with distilled water, absolute ethanol and ultrasonic waves several times, and dried in a vacuum drying oven at 80°C for 3 hours after suction filtration , that is, nanocomposite metal oxide PbO·CuO;

[0038] (3) Weigh 0.80g of nano-Al and 6.75g of composite PbO·CuO, and disperse them in reaction vessels containing 37.04mL and 37.13mL of n-hexane respectively under ultrasonic conditions; subsequently, the dispersed nano-Al and PbO·CuO Place CuO in the same reaction vessel, and continue ultrasonic dispersion at a constant...

Embodiment 2

[0045] Embodiment 2Al / Fe 2 o 3 · Bi 2 o 3

[0046] (1) At room temperature, weigh Fe(NO 3 ) 3 9H 2 O, Bi(NO 3 ) 3 ·5H 2 O and NaOH, Fe(NO 3 ) 3 9H 2 O and Bi(NO 3 ) 3 ·5H 2 O mixing, adding Tween-80 of 1% of the total mass as a dispersant, fully mixing and carefully grinding;

[0047] (2) Add the finely ground NaOH into the mixture, and grind it sufficiently at room temperature for 35 minutes to complete the solid-phase reaction; the product is washed with distilled water, absolute ethanol and ultrasonic waves several times, and dried in a vacuum drying oven at 80°C for 4 hours after suction filtration , that is, the nanocomposite metal oxide Fe 2 o 3 · Bi 2 o 3 ;

[0048] (3) Weigh 0.90g nano-Al and 5.20g composite Fe 2 o 3 · Bi 2 o 3 , were dispersed in the reaction vessel containing 41.67mL and 13.84mL of n-hexane under ultrasonic conditions; subsequently, the dispersed nano-Al and SnO 2 Place CuO in the same reaction vessel, and continue ultrasonic...

Embodiment 3

[0055] Example 3Al / Bi 2 o 3 ·CuO

[0056] (1) At room temperature, weigh the Bi(NO 3 ) 3 ·5H 2 O, Cu(NO 3 ) 2 ·3H 2 O and NaOH, Bi(NO 3 ) 3 ·5H 2 O and Cu(NO 3 ) 2 ·3H 2 O mixing, adding Tween-80 of 1% of the total mass as a dispersant, fully mixing and carefully grinding;

[0057] (2) Add the finely ground NaOH to the mixture, and grind it thoroughly for 40 minutes at room temperature to complete the solid phase reaction; the product is washed with distilled water, absolute ethanol and ultrasonic waves several times, and dried in a vacuum drying oven at 85°C for 3 hours after suction filtration , that is, the nanocomposite metal oxide Bi 2 o 3 CuO;

[0058] (3) Weigh 0.57g nano-Al and 5.60g composite Bi 2 o 3 ·CuO was dispersed in reaction vessels containing 26.39mL and 17.09mL of n-hexane respectively under ultrasonic conditions; subsequently, the dispersed nano-Al and Bi 2 o 3 Place CuO in the same reaction vessel, and continue ultrasonic dispersion at a...

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Abstract

The invention discloses an energetic polyoxide compound super-thermite. The energetic polyoxide compound super-thermite has the chemical formula represented by n-Al / Ax1Oy1.Bx2Oy2 or n-Al / Ax1Oy1.Bx2Oy2.Cx3Oy3, wherein n represents nanometer super-thermite, Ax1Oy1, Bx2Oy2 and Cx3Oy3 are different metal oxides, A, B and C are selected from Group II, III, IV and V main group metal elements, transition metal elements or lanthanide elements, x and y are positive integers and meet chemically reasonable values and the particle size of nanometer aluminum powder is 20-100nm. The energetic polyoxide compound super-thermite is prepared by virtue of a room-temperature solid-phase reaction-ultrasonic oscillation composite method which has the advantages of being low in cost, high in yield, simple and feasible in preparation process, environment friendly, free of pollution and the like and is suitable for pilot-plant-scale and large-scale popularization and production. The compound super-thermite as a combustion catalyst, which is prepared by the method has excellent catalytic effect on the combustion of a double-base propellant and is an efficient combustion catalyst.

Description

technical field [0001] The invention relates to an energetic multi-oxide composite super thermite and a preparation method thereof. The energetic composite super thermite can be used as a double-base propellant combustion catalyst, mainly used in rockets and missiles, and belongs to nanomaterials Preparation technology field. technical background [0002] As the power source of rockets and missiles, bibasic propellants must pursue high energy. However, although the use of an inert catalyst improves the combustion performance of the propellant, it also reduces its energy. Therefore, the development of energetic combustion catalysts has become an important direction in the research of new solid propellants. Energetic catalysts can cooperate with other components in the double-base propellant formulation to improve combustion performance, and can also release their own energy to ensure or even improve the energy performance of the propellant. [0003] Nano-aluminum powder is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B33/00
Inventor 赵凤起安亭高红旭仪建华樊学忠罗阳徐司雨谭艺
Owner XIAN MODERN CHEM RES INST
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