Method for preparing nano copper powder through fluorocarbon surfactant

A composite surfactant and fluorocarbon surface technology, applied in the direction of nanotechnology, can solve the problems of poor solution stability and uniformity, copper powder particle size, shape, and inability to achieve self-desorption, so as to achieve self-desorption Good attachment performance, good shape consistency, easy to clean effect

Active Publication Date: 2018-11-02
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solution prepared by this method is an emulsion, and the stability and uniformity of the solution are poor, resulting in different particle sizes and shapes of the prepared copper powder; and the copper powder is easily deposited on the cathode, and self-desorption cannot be achieved.

Method used

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  • Method for preparing nano copper powder through fluorocarbon surfactant
  • Method for preparing nano copper powder through fluorocarbon surfactant

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Experimental program
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Embodiment 1

[0032] In this embodiment, a method for preparing nano-copper powder using a fluorocarbon surfactant comprises the following steps:

[0033] (1) Preparation of microemulsion: Weigh the following raw materials according to the ratio per liter of microemulsion: anionic fluorocarbon surfactant (sulfonate anionic fluorocarbon surfactant) 1.2g, nonionic surfactant (coconut oil fatty acid diethanolamide ) 3.6g, additive (ethanol) 12g, CuSO 4 ·5H 2O 30.0g; The anionic fluorocarbon surfactant (sulfonate anionic fluorocarbon surfactant), nonionic surfactant (coconut oil fatty acid diethanolamide) and auxiliary agent (ethanol) are added to the water of 200ml, Mechanically stirred for 10min to obtain a composite surfactant solution; the CuSO 4 ·5H 2 O was dissolved in 200ml of water to obtain a copper sulfate solution; the composite surfactant solution was added to the copper sulfate solution, water was added to prepare a 1L aqueous solution, and sulfuric acid was added to adjust the ...

Embodiment 2

[0039] In this embodiment, a method for preparing nano-copper powder using a fluorocarbon surfactant comprises the following steps:

[0040] (1) Preparation of microemulsion: Weigh the following raw materials according to the ratio per liter of microemulsion: anionic fluorocarbon surfactant (sulfonate anionic fluorocarbon surfactant) 0.5g, nonionic surfactant (Tween 80) 6.0g , additive (ethylene glycol) 15g, CuSO 4 ·5H 2 O 50.0g; Add the anionic fluorocarbon surfactant (sulfonate anionic fluorocarbon surfactant), the nonionic surfactant (Tween 80) and auxiliary agent (ethylene glycol) to 200ml of water , mechanically stirred for 30min to obtain a composite surfactant solution; the CuSO 4 ·5H 2 O was dissolved in 200ml of water to obtain a copper sulfate solution; the composite surfactant solution was added to the copper sulfate solution, water was added to prepare a 1L aqueous solution, and sulfuric acid was added to adjust the pH value of the solution to 2; ultrasonic disp...

Embodiment 3

[0046] In this embodiment, a method for preparing nano-copper powder using a fluorocarbon surfactant comprises the following steps:

[0047] (1) Preparation of microemulsion: Weigh the following raw materials according to the ratio per liter of microemulsion: 5.0 g of anionic fluorocarbon surfactant (sulfate anionic fluorocarbon surfactant), 20.0 g of nonionic surfactant (Tween 40 and Tween 40 Wen 61 is 15.0g, 5.0g respectively), additives (5g each of n-butanol and methanol) 10g, CuSO 4 ·5H 2 O 10 g; the anionic fluorocarbon surfactant (sulphate anionic fluorocarbon surfactant), the nonionic surfactant (Tween 40 and Tween 61) and adjuvants (n-butanol and methanol) were added to In 200ml of water, mechanically stirred for 20min to obtain a composite surfactant solution; the CuSO 4 ·5H 2 O was dissolved in 200ml of water to obtain a copper sulfate solution; the composite surfactant solution was added to the copper sulfate solution, water was added to prepare a 1L aqueous solu...

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Abstract

A method for preparing nano copper powder through a fluorocarbon surfactant comprises the following steps that (1) an anionic fluorocarbon surfactant, a nonionic surfactant, an assistant, CuSO.5H2O and water are proportionally selected to prepare microemulsion; (2) the microemulsion is subjected to electrodeposition, and nano copper powder mixed liquor is obtained; (3) nano copper powder is extracted, the nano copper powder mixed liquor is subjected to filtering or centrifugal treatment, and after suction filtration and drying, nano copper powder is obtained; and (4) the nano copper powder isput into a packaging bag, and the packaging bag is sealed and stored after inert gases are injected into the packaging bag. According to the nano copper powder prepared through the method, the particle size is 20-100 nanometer, the purity is 99% or above, distribution of the particle size is uniform, and the appearance consistency is good; in the preparation process, the copper powder does not adhere to a cathode plate, the self-desorption performance is good, the cathode plate is easy to clean, and automatic continuous production can be achieved; the corrosion amount of an anode plates is small, environment pollution is small, and energy consumption is low; and the prepared nano copper powder is good in dispersity and easy to collect.

Description

technical field [0001] The invention relates to a method for preparing nano-copper powder, in particular to a method for preparing nano-copper powder by using a fluorocarbon surfactant. Background technique [0002] With the development of science and technology, nanomaterials have become a fast-growing new type of material, which has a very wide range of applications in many aspects such as industry, agriculture, medicine and people's lives. For example, it can be used as antibacterial materials in medicine, as microelectronic materials in the electronics industry, and as catalyst materials in the field of chemical synthesis. In addition, nanomaterials are also widely used in information storage, photonics, sensors, imaging and other fields. Therefore, the preparation and research of nanomaterials and their potential applications have attracted widespread attention of scientists from all over the world. The preparation of nanomaterials and the development of nanotechnolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C5/02B82Y40/00
CPCB82Y40/00C25C5/02
Inventor 苏玉长罗中保岳士翔喻秋山张晶热比古丽图尔荪
Owner CENT SOUTH UNIV
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