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An energetic thin film of aluminum-copper oxide-graphene oxide ternary composite material and its preparation method

A composite material and graphene technology, used in electrolytic coatings, coatings, electrophoretic plating, etc., can solve the problems of restraint of thermite reaction propagation, slow energy release rate, and limit thermite, etc., to improve flatness, operation Simple, mild effects

Active Publication Date: 2018-01-23
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional thermites are mainly prepared by physical mixing of oxidizing agents and reducing agents, which can easily cause the propagation of the thermite reaction to be restrained, resulting in low actual heat release and slow energy release rate, which limits the practical application of thermites

Method used

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  • An energetic thin film of aluminum-copper oxide-graphene oxide ternary composite material and its preparation method
  • An energetic thin film of aluminum-copper oxide-graphene oxide ternary composite material and its preparation method
  • An energetic thin film of aluminum-copper oxide-graphene oxide ternary composite material and its preparation method

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preparation example Construction

[0027] combine figure 1 , the present invention is an aluminum-copper oxide-graphene oxide ternary composite energetic film and a preparation method thereof, specifically comprising the following steps:

[0028] Step 1: ultrasonically disperse graphene oxide in isopropanol; the ultrasonic time is 0.5-3h, and the concentration of graphene oxide dispersion is 1-2mg / mL;

[0029] Step 2: ultrasonically dissolve copper acetate in isopropanol, and then dropwise add it to the solution in step 1; the ultrasonic time is 0.5-3h, and the mass ratio of CuO to graphene oxide obtained is 1:3;

[0030] Step 3: Heat the mixed solution in Step 2 to 83° C. under vigorous stirring for 0.5 h of constant temperature reflux reaction;

[0031] Step 4: Add deionized water to the above reaction solution, and then reflux at a constant temperature of 83°C; the volume ratio of the added deionized water to the original reaction solution is 1:10-1:5, and the constant reaction time of this process is 0.5-...

Embodiment 1

[0040] Step 1: ultrasonically disperse 0.05g of graphene oxide in 50mL of isopropanol, and ultrasonicate for 0.5h;

[0041] Step 2: Dissolve 0.13g of copper acetate in 10mL of isopropanol, sonicate for 0.5h, and drop the copper acetate solution into the graphene oxide dispersion;

[0042] Step 3: Heat the mixed solution in Step 2 to 83° C. under vigorous stirring for 0.5 h of constant temperature reflux reaction;

[0043] Step 4: Add 5 mL of deionized water to the above reaction solution, and then continue the constant temperature reaction at 83°C for 1 hour;

[0044] Step 5: centrifuging, washing, and drying the product obtained in step 4 to obtain a graphene oxide-loaded nano-CuO composite material;

[0045] Step 6: ultrasonically disperse 0.05 g of the CuO-graphene oxide binary compound obtained in step 5 in 50 mL of isopropanol, and ultrasonically 0.5 h;

[0046] Step 7: Add 0.05g of aluminum particles (about 50nm) and a small amount of PEG-600 into 10mL of isopropanol, ...

Embodiment 2

[0052] Step 1: ultrasonically disperse 0.075g of graphene oxide in 50mL of isopropanol, and sonicate for 1h;

[0053] Step 2: Dissolve 0.20 g of copper acetate in 10 mL of isopropanol, sonicate for 1 hour, and drop the copper acetate solution into the graphene oxide dispersion;

[0054] Step 3: Heat the mixed solution in Step 2 to 83° C. under vigorous stirring for 0.5 h of constant temperature reflux reaction;

[0055] Step 4: Add 5 mL of deionized water to the above reaction solution, and then continue the constant temperature reaction at 83°C for 1 hour;

[0056] Step 5: centrifuging, washing, and drying the product obtained in step 4 to obtain a graphene oxide-loaded nano-CuO composite material;

[0057] Step 6: ultrasonically disperse 0.075 g of the CuO-graphene oxide binary compound obtained in step 5 in 50 mL of isopropanol, and ultrasonically disperse for 1 h;

[0058] Step 7: Add 0.015g of aluminum particles (about 50nm) and a small amount of PEG-200 into 10mL of is...

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Abstract

The invention discloses an energy-containing film made of an aluminum-copper oxide-graphene oxide ternary composite material and a preparation method for the energy-containing film. The method includes the steps that firstly, a CuO-graphene oxide binary compound is placed in isopropyl alcohol to be ultrasonically dispersed; secondly, aluminum particles and a dispersing agent are ultrasonically dispersed in the isopropyl alcohol to be ultrasonically mixed with dispersing liquid obtained from the first step; thirdly, a product obtained from the second step is centrifuged, washed and dried; fourthly, a material obtained from the third step is placed in a mixed solution of the isopropyl alcohol and N,N-dimethylformamide to be ultrasonically dispersed, and the electric potential is adjusted; and fifthly, the dispersing liquid obtained from the fourth step serves as electrophoretic deposition liquid, a copper sheet serves as a cathode pole piece, stainless steel or a platinum electrode serves as an anode pole piece, electrophoretic deposition is conducted, and the energy-containing film is obtained. By the adoption of the energy-containing film and the preparation method, graphene oxide is introduced into a thermite system, energy released by oxygen-containing groups in the graphene oxide in the thermal deoxidization process is used for further inducing a redox reaction of aluminum and CuO, and therefore energy output by the system is multiplied.

Description

technical field [0001] The invention relates to a nanocomposite energetic film and a preparation method thereof, in particular to an aluminum-copper oxide-graphene oxide ternary composite energetic film and a preparation method thereof. Background technique [0002] In recent years, the development of new ammunition and weaponry requires pyrotechnics to have higher safety and reliability, and at the same time meet the requirements of miniaturization and multi-function. Therefore, the technology of pyrotechnics is moving towards miniaturization, integration and The direction of multi-functional development, among which micro-electro-mechanical system (Micro Electro Mechanical System, MEMS) pyrotechnics is an important development direction. In order to achieve high safety and miniaturization of pyrotechnics, it is required that the ignition and transfer units of pyrotechnics do not contain sensitive energetic materials, the output and transfer energy of the micro-ignition bri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D13/02
CPCC25D13/02
Inventor 胡艳李家宽马小霞吴立志叶迎华沈瑞琪
Owner NANJING UNIV OF SCI & TECH
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