Preparation method of oil soluble high dispersion nano-metal copper

A nano-metal, high-dispersion technology, applied in the direction of nanotechnology, can solve the problems of expensive equipment, achieve the effects of reduced production costs, mild reaction conditions, and simple preparation methods

Inactive Publication Date: 2013-06-05
CHINA NAT ACAD NANOTECH & ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Physical methods such as mechanical grinding are suitable for the preparation of micron-scale particles, but the recently developed evaporation and condensation can prepare nano-silver particles on a large scale, but its disadvantages are obvious, that is, expensive equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: A method for preparing oil-soluble highly dispersed nano-metal copper, characterized in that the specific steps are as follows:

[0015] (1) Complexing: Cu 2+ The soluble inorganic salt and the complexing agent are dissolved in deionized water, wherein the molar ratio of the copper atom to the complexing agent monomer is 1:1, stir for 1 hour to fully complex, and obtain a copper complex;

[0016] (2) Formation of a precipitate: adding a reducing agent dropwise to the copper complex obtained in step (1), the reaction immediately occurs and hydrogen is generated to obtain a red precipitate, wherein the molar ratio of the copper complex to the reducing agent is 1:0.5;

[0017] (3) Centrifugal separation: After no hydrogen is released, the red precipitate obtained in step (2) is centrifuged for 30 minutes to obtain a red solid;

[0018] (4) Drying: the red solid obtained in step (3) is vacuum dried at room temperature for 6 hours to obtain the target product, oil-solu...

Embodiment 2

[0022] Embodiment 2: A method for preparing oil-soluble highly dispersed nano-metal copper, characterized in that the specific steps are as follows:

[0023] (1) Complexing: Cu 2+ The soluble inorganic salt and the complexing agent are dissolved in deionized water, wherein the molar ratio of the copper atom to the complexing agent monomer is 1:100, stir for 3 hours to fully complex, and obtain a copper complex;

[0024] (2) Formation of a precipitate: adding a reducing agent dropwise to the copper complex obtained in step (1), the reaction immediately occurs and hydrogen is generated to obtain a red precipitate, wherein the molar ratio of the copper complex to the reducing agent is 1:10;

[0025] (3) Centrifugal separation: After no hydrogen is released, the red precipitate obtained in step (2) is centrifuged for 60 minutes to obtain a red solid;

[0026] (4) Drying: the red solid obtained in step (3) is vacuum dried at room temperature for 12 hours to obtain the target product, oil-s...

Embodiment 3

[0030] Embodiment 3: A method for preparing oil-soluble highly dispersed nano-metal copper, characterized in that the specific steps are as follows:

[0031] (1) Complexing: Cu 2+ The soluble inorganic salt and the complexing agent are dissolved in deionized water, wherein the molar ratio of the copper atom to the complexing agent monomer is 1:50, stir for 2 hours to fully complex, and obtain a copper complex;

[0032] (2) Formation of a precipitate: adding a reducing agent dropwise to the copper complex obtained in step (1), the reaction immediately occurs and hydrogen is generated to obtain a red precipitate, wherein the molar ratio of the copper complex to the reducing agent is 1:5;

[0033] (3) Centrifugal separation: After no hydrogen is released, the red precipitate obtained in step (2) is centrifuged for 40 minutes to obtain a red solid;

[0034] (4) Drying: the red solid obtained in step (3) is vacuum dried at room temperature for 10 hours to obtain the target product, oil-sol...

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PUM

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Abstract

The invention discloses a preparation method of oil soluble high dispersion nano-metal copper. The preparation method includes steps of dissolving Cu2+ soluble inorganic salt into water solution to react with complex sodium oleate, forming Cu coordination compound provided with a protective layer, then adding reducing agents to restore, and obtaining materials of the oil soluble high dispersion nano-metal copper through centrifugal separation and vacuum drying. The preparation method has the advantages that the preparation method is simple, condition is moderate, a water solution system is adopted, and the preparation method is environment-friendly, and facilitates large-scale production.

Description

(1) Technical field: [0001] The invention relates to a method for preparing oil-soluble highly dispersed nano metal, in particular to a method for preparing oil-soluble highly dispersed nano metal copper. (2) Background technology: [0002] Due to the special properties of highly dispersed nano-metals: such as good electrical conductivity, super bactericidal ability, high light excitation rate and extremely strong third-order nonlinear coefficients, it makes nano-metals or doped with nano-metals The prepared composite materials are widely used in superconducting, chemical, medical, optical, electronic, electrical and other industries. [0003] The preparation of nano metals can be divided into physical methods and chemical methods. Physical methods such as mechanical grinding are suitable for the preparation of micron-sized particles, but the recently developed evaporation and condensation can produce large-scale silver nanoparticles, but its shortcomings are obvious, that is, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B82Y40/00
Inventor 张东
Owner CHINA NAT ACAD NANOTECH & ENG
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