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Production and its apparatus for organic coated metal nanometer powdery

A technology of metal nanometer and preparation device, applied in the direction of coating, can solve the problems of affecting the coating effect and quality, and the coating layer is easy to peel off, and achieve the effect of large-scale production, small volume, and improved dispersion.

Inactive Publication Date: 2006-05-31
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These coatings are either easy to peel off, or introduce oxygen into the nanopowder, which affects the effect and quality of the coating
Coating of pure metal nanopowder, especially online organic coating has not been reported yet

Method used

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  • Production and its apparatus for organic coated metal nanometer powdery
  • Production and its apparatus for organic coated metal nanometer powdery
  • Production and its apparatus for organic coated metal nanometer powdery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1 online organic coated metal nanopowder

[0017] All metal nanopowders in this embodiment are copper nanopowders.

[0018] figure 1 In the process, the inert gas 1 is passed into the metal nanomaterial 2, and driven by the flowing inert gas 1, the metal nanomaterial 2, the inert gas 1, and the organic gas and hydrogen gas 3 that are introduced later form a gas flow and enter the high-pressure plasma area together. 4. Reaction to generate organic coated metal nanopowder.

[0019] The metal nano powder raw material enters part 10 using the device structure in another patent application "Preparation method of metal nano powder material and its preparation device" (patent application number 200410040125.3) submitted by the Laser Fusion Research Center of China Academy of Engineering Physics in 2004. Get online metal nanopowder.

[0020] image 3 Shown, the preparation device of the organic coated metal nanopowder of the present invention is: the metal nanopo...

Embodiment 2

[0025] Embodiment 2 off-line organic coated metal nanopowder

[0026] All metal nanopowders in this embodiment are copper nanopowders.

[0027] Metal nano powder raw material enters part 10 as metal nano powder storage area.

[0028] figure 2 , image 3 Shown, the preparation device of organic coated metal nanopowder of the present invention is: metal nanopowder raw material enters part 10 through metal nanopowder grading pipeline 14, connecting pipeline I 16 and is used to produce uniform, continuous, stable high pressure plasma generation The discharge tube of the device is connected, and a water cooling device is arranged outside the metal nano powder classification pipeline 14, 13-1 is a cooling water inlet, and 13-2 is a cooling water outlet, and an unreacted Metal nano powder collecting container 15; discharge tube lower end is provided with organic gas inlet 17 and hydrogen gas inlet 18 respectively; discharge tube connects pipeline II 19 with organic coated metal n...

Embodiment 3

[0033] The metal nanopowders in this embodiment are all nickel nanopowders.

[0034] The high-frequency high-voltage power supply 9 for generating high-voltage plasma has an operating voltage of about 20kV and an operating frequency of about 40kHz.

[0035] All the other are with embodiment 1.

[0036] The metal nanopowder in the embodiment of the present invention can be replaced by metal iron, cobalt, aluminum, silver, gold, lead, manganese, titanium, vanadium, chromium, zinc, tungsten, magnesium, etc. in addition to metal copper and nickel. , to prepare the corresponding organic-coated metal nanopowder material.

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PUM

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Abstract

A process for coating nano-class C-H layer on the surface of nanoparticle includes such steps as vacuumizing its apparatus, filling H2, organic gas and inertial gas into discharging tube, turning on HF high-voltage power supply, applying the HF high voltage to said discharging tube, regulating the frequency and voltage until a high-voltage plasma region is generated in the discharging tube, and using the inertial gas to carry the nanoparticles to pass through said plasma region for coating said nano-class C-H layer on their surface. Its apparatus is also disclosed.

Description

technical field [0001] The invention belongs to the field of nanomaterial preparation, and in particular relates to a method for preparing organic-coated metal nanopowder and a device thereof. Background technique [0002] At present, most research institutes and manufacturers mainly focus on the preparation of nano-powder materials, and seldom consider the coating of nano-powders. Usually, metal nanopowders are oxidized due to exposure to the atmosphere, which affects the surface properties of metal nanopowders, seriously hindering their practical applications. With the further development of nano-science and technology and the further development of subsequent nano-products, the preservation of metal nano-powders urgently needs to be resolved. Therefore, the coating technology of metal nanopowder will be the focus of nanotechnology research in the future. People have begun to explore the formation of a thin layer of material on the surface of the nano-powder to cover the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/02
Inventor 唐永建雷海乐黎军师红丽罗江山李喜波
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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