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Method for preparing nano aluminum/porous copper oxide nano thermite through P4VP self-assembly

A copper oxide and nano-aluminum technology, applied in copper oxide/copper hydroxide, non-explosive/non-thermal agent components, offensive equipment, etc., can solve the problems of poor product consistency, shortened mass transfer distance of reactants, and high equipment requirements

Inactive Publication Date: 2021-06-08
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Among them, the physical mixing method is the simplest method to prepare nano-thermite. Ultrasonic technology is used to uniformly disperse nano-aluminum powder and oxides in organic solvents. However, the nano-thermite prepared by this method is prone to uneven mixing and consistent products. sex problem
The organic impurities introduced

Method used

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  • Method for preparing nano aluminum/porous copper oxide nano thermite through P4VP self-assembly
  • Method for preparing nano aluminum/porous copper oxide nano thermite through P4VP self-assembly
  • Method for preparing nano aluminum/porous copper oxide nano thermite through P4VP self-assembly

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step 1: 12.08 g of three hydrolyzate copper and 3.003 g of urea were dissolved in 500 mL of deionized water, stirred for 30 min.

[0026] Step 2: Pour the solution in step 1 in a high pressure hydraulic kettle for hydrothermal synthesis, the reaction temperature is 130 ° C, the reaction time is 4 h.

[0027] Step 3: Wash the product by filtration, deionized water, water absolute ethanol, and dried to obtain a porous oxide precursor.

[0028] Step 4: The precursor is calcined using a muffer furnace, and the calcination temperature is 500 ° C, the calcination time is 4 h.

[0029] Step 5: Dissolve 0.1 g of P4VP in 100 mL of isopropyl alcohol, then 0.346 g of nano-aluminum powder, ultrasonic dispersed 1 h.

[0030] Step 6: 1 g of sheet-shaped porous calcium oxide was added to 100 ml of isopropanol, and the ultrasonic dispersion was dispersed, and the time was 1 h.

[0031] Step 7: Using magnetic stirring dispersed the nano-aluminum powder suspension in step 5, then poured into...

Embodiment 2

[0035] Step 1: 12.08 g of three hydrolyzate copper and 3.003 g of urea were dissolved in 500 mL of deionized water, stirred for 30 min.

[0036] Step 2: Pour the solution in step 1 in a high pressure hydraulic kettle for hydrothermal synthesis, the reaction temperature is 130 ° C, the reaction time is 4 h.

[0037] Step 3: Wash the product by filtration, deionized water, water absolute ethanol, and dried to obtain a porous oxide precursor.

[0038] Step 4: The precursor is calcined using a muffer furnace, and the calcination temperature is 500 ° C, the calcination time is 4 h.

[0039] Step 5: Dissolve 0.2 g of P4VP in 100 mL of isopropyl alcohol, then 0.346 g of nano-aluminum powder, ultrasonic dispersed 1 h.

[0040] Step 6: 1 g of sheet-shaped porous calcium oxide was added to 100 ml of isopropanol, and the ultrasonic dispersion was dispersed, and the time was 1 h.

[0041] Step 7: Using magnetic stirring dispersed the nano-aluminum powder suspension in step 5, then poured into...

Embodiment 3

[0044] Step 1: 12.08 g of three hydrolyzate copper and 3.003 g of urea were dissolved in 500 mL of deionized water, stirred for 30 min.

[0045] Step 2: Pour the solution in step 1 in a high pressure hydraulic kettle for hydrothermal synthesis, the reaction temperature is 130 ° C, the reaction time is 4 h.

[0046] Step 3: Wash the product by filtration, deionized water, water absolute ethanol, and dried to obtain a porous oxide precursor.

[0047] Step 4: The precursor is calcined using a muffer furnace, and the calcination temperature is 500 ° C, the calcination time is 4 h.

[0048] Step 5: Dissolve 0.2 g of P4VP in 100 mL of isopropyl alcohol, then 0.484 g of nano-aluminum powder, ultrasonic dispersed 1 h.

[0049] Step 6: 1 g of sheet-shaped porous calcium oxide was added to 100 ml of isopropanol, and the ultrasonic dispersion was dispersed, and the time was 1 h.

[0050]Step 7: Using magnetic stirring dispersed the nano-aluminum flour suspension in step 5, then poured into a...

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Abstract

The invention discloses a method for preparing a nano aluminum/porous copper oxide nano thermite through P4VP self-assembly. The method is divided into two stages: in the first stage: adopting Cu (NO3)2.H2O and urea to obtain a copper oxide precursor, enabling the copper oxide precursor to be subjected to high-temperature calcination to obtain flaky porous copper oxide, and then physically mixing the porous copper oxide and nano aluminum powder to obtain an nAl/pCuO energetic composite material; and the second stage is a P4VP self-assembly stage: preparing a P4VP isopropanol solution, then adding nano aluminum powder for ultrasonic dispersion, then adding the porous copper oxide suspension while stirring, finally performing ultrasonic dispersion on the nano aluminum powder and copper oxide again, and performing suction filtration and washing on the suspension to obtain the nAl/pCuO@P4VP nano thermite. According to the prepared nano thermite, the agglomeration phenomenon among the components is reduced, the contact area between the nano aluminum powder and the copper oxide is greatly increased, and the improvement of energy release and reaction performance of the nano thermite is promoted.

Description

Technical field [0001] The present invention belongs to the preparation of the energy-containing material, and the method of preparing a P4VP self-assembling nano-aluminum / porous oxide nano-aluminum thermostat. Background technique [0002] Nano-aluminum heat agents are typically from nanometers (Al, Mg, etc.) and metal oxides (Cuo, Co) 3 O 4 The syntomine composite material, due to its advantages such as high reaction activity and high energy density, has become an important direction in the study of nano-containing material, which has caused interest in many researchers. At present, the preparation method of nano-aluminum thermoses mainly includes: physical mixing, sol - gel method, inhibiting reaction ball mill, self-assembly, physical gas phase deposition, atomic layer deposition, etc. [0003] The physical mixing method is the simplest method for preparing nano-aluminum heat agents, and the nano-aluminum powder and oxide are uniformly dispersed in an organic solvent using ...

Claims

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Application Information

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IPC IPC(8): C06B33/02C06B23/00C01G3/02
CPCC01G3/02C01P2004/03C01P2004/61C06B23/00C06B33/02
Inventor 张文超徐建勇郑子龙陈亚杰俞春培宋长坤陈俊宏朱俊武刘佳琪邬润辉先明春
Owner NANJING UNIV OF SCI & TECH
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