A kind of breathable layered nanoporous copper-silver composite material and preparation method thereof

A technology of nano-porous copper and composite materials, which is applied in the fields of botanical equipment and methods, metal layered products, chemical instruments and methods, etc., can solve the problems of single structure, easy accumulation of nano-copper-silver bimetallic powder, and inability to support itself. , to achieve the effect of simple preparation method, good mechanical integrity and easy operation

Active Publication Date: 2019-08-09
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a breathable layered nano-porous copper-silver composite material and its nano-porous copper-silver composite material for the single structure of the nano-porous copper-silver filter sterilization layer in the current technology, and the nano-copper-silver bimetallic powder is easy to accumulate and cannot be self-supporting. Preparation

Method used

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  • A kind of breathable layered nanoporous copper-silver composite material and preparation method thereof
  • A kind of breathable layered nanoporous copper-silver composite material and preparation method thereof
  • A kind of breathable layered nanoporous copper-silver composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0039] Select alloy composition Cu 45 Zr 25 Ti20 Ag 10 , according to the atomic percentage of each element in the target alloy: Cu is 45at.%, Zr is 25at.%, Ti is 20at.%, Ag is 10at.%, and the mass fraction is 99.99% high-purity copper sheet (5.977g ), zirconium grain (4.767g), titanium grain (2.002g) and silver grain (2.255g) obtain master alloy raw material 15g; Master alloy raw material is placed in vacuum arc melting furnace (put into 99.9wt% pure titanium before smelting granules as oxygen-scavenging material), and repeated melting 4 times under the protection of high-purity argon (to ensure the uniformity of the alloy), each time about 40s. Cool down to room temperature with the furnace to get Cu 45 Zr 25 Ti 20 Ag 10 alloy ingot.

[0040] Take 3-4g of the polished and cleaned alloy ingot and place it in a quartz test tube, put the quartz test tube into the induction coil of the vacuum belt throwing machine and fix it in the induction coil, carry out induction melt...

Embodiment 2

[0046] Select alloy composition Cu 45 Zr 25 Ti 20 Ag 10 , according to the atomic percentage of each element in the target alloy: Cu is 45at.%, Zr is 25at.%, Ti is 20at.%, Ag is 10at.%, and the mass fraction is 99.99% high-purity copper sheet (5.977g ), zirconium grain (4.767g), titanium grain (2.002g) and silver grain (2.255g) obtain master alloy raw material 15g; Master alloy raw material is placed in vacuum arc melting furnace (put into 99.9wt% pure titanium before smelting granules as oxygen-scavenging material), and repeated melting 4 times under the protection of high-purity argon (to ensure the uniformity of the alloy), each time about 40s. Cool down to room temperature with the furnace to get Cu 50 Zr 25 Ti 20 Ag 10 alloy ingot.

[0047] Take 3-4g of the polished and cleaned alloy ingot and place it in a quartz test tube, put the quartz test tube into the induction coil of the vacuum belt throwing machine and fix it in the induction coil, carry out induction me...

Embodiment 3

[0053] Select alloy composition Cu 45 Zr 25 Ti 20 Ag 10 , according to the atomic percentage of each element in the target alloy: Cu is 45at.%, Zr is 25at.%, Ti is 20at.%, Ag is 10at.%, and the mass fraction is 99.99% high-purity copper sheet (5.977g ), zirconium grain (4.767g), titanium grain (2.002g) and silver grain (2.255g) obtain master alloy raw material 15g; Master alloy raw material is placed in vacuum arc melting furnace (put into 99.9wt% pure titanium before smelting granules as oxygen-scavenging material), and repeated melting 4 times under the protection of high-purity argon (to ensure the uniformity of the alloy), each time about 40s. Cool down to room temperature with the furnace to get Cu 50 Zr 25 Ti 20 Ag 10 alloy ingot.

[0054] Take 3-4g of the polished and cleaned alloy ingot and place it in a quartz test tube, put the quartz test tube into the induction coil of the vacuum belt throwing machine and fix it in the induction coil, carry out induction me...

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Abstract

The invention is a breathable layered nanoporous copper-silver composite material. The composite material is a thin strip, and the material includes nanoporous copper silver in the middle, and nanoporous copper and nanoporous copper silver on both sides. In the present invention, Cu x Zr y Ti z Ag w It is a precursor alloy, where x, y, z, and w are atomic percentages, 35≤x≤45, 15≤y≤25, 15≤z≤25, 10≤w≤30 and x+y+z+w=100 The nano-holes on each layer of the material are completely transparent, the pore size is adjustable, and the layers are connected through the nano-holes, so the composite material can not only play the role of a multi-layer barrier to bacteria, but also completely breathable. It has better filtration and sterilization performance in the field of mask filter material.

Description

[0001] Technical field: [0002] The invention relates to the technical field of nanoporous materials, in particular to a breathable layered nanoporous copper-silver composite material and a preparation method thereof. [0003] Background technique: [0004] With the deterioration of air quality in recent years, haze weather began to appear. A large number of bacteria, viruses, etc. attach to suspended particles in the air and enter people's respiratory organs, endangering human health. Experts suggest that you need to wear a qualified mask when going out in foggy weather. A qualified mask must have a filter that filters suspended particles and has a strong bactericidal ability. How to prepare a material with good filtration and sterilization properties has become a problem that people pay more and more attention to. As we all know, metal copper and metal silver have strong bactericidal ability. Combining copper and silver at the same time can enhance the broad-spectrum ant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/08C22C3/00C25F3/08C22C9/00B22D11/06B32B15/01A01N59/20A01P1/00A41D13/11
CPCA01N59/20A41D13/1192C22C1/08C22C3/00C22C9/00C25F3/08B22D11/06B32B15/01C22C1/081
Inventor 秦春玲李曼张萌萌王志峰王晗
Owner HEBEI UNIV OF TECH
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