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Title:
NANO SILVER-COPPER ALLOY MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/208232
Kind Code:
A1
Abstract:
Disclosed are a nano silver-copper alloy material and a preparation method therefor. The nano silver-copper alloy material is composed of a mixture of nano silver-copper alloy particles with a particle size of 15-50 nm, and the copper metal atoms at the outer surface of the alloy material are formed into a copper oxide. In the preparation method, when a gaseous alloy is cooled at room temperature after being cooled by a supersonic inert gas flow, only the copper metal atoms exposed on the outer surface will be oxidized, and the silver metal atom will not be oxidized, and therefore, the alloy material has a better conductive performance, and furthermore, the particle size of the nano-alloy particles is small, the number of metal atoms exposed on the surface is great, and the bactericidal ability and the virucidal ability thereof are strong; and in the preparation method, by entering the inert gas flow carrying the alloy particles into a filter layer for gas-solid separation and collection, the inert gas flow passes through the filter layer via a filter hole, and the alloy particles are trapped by the filter layer, such that the discharge of the nano-alloy particles with the inert gas is effectively reduced, the waste of resources is avoided, and costs are saved on.

Inventors:
CAO WEN (CN)
WU YINLONG (CN)
CHEN XINHONG (CN)
YANG LIU (CN)
Application Number:
PCT/CN2020/097269
Publication Date:
October 21, 2021
Filing Date:
June 20, 2020
Export Citation:
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Assignee:
SHENZHEN JIAN NANOCOMPOSITES CO LTD (CN)
International Classes:
B22F9/12; B01D39/14; B22F9/14; B82Y30/00; C22C5/08; C22C9/00; D04H1/4382; D04H1/728
Domestic Patent References:
WO2012105631A12012-08-09
Foreign References:
CN107671303A2018-02-09
CN105226242A2016-01-06
CN204281349U2015-04-22
CN106310782A2017-01-11
CN105458277A2016-04-06
CN104393307A2015-03-04
Other References:
PING, DEHAI ET AL.: "A Microstructural Evolution of Ag-Cu Nanocrystalline Alloys", ACTA METALLURGICA SINICA, vol. 32, no. 10, 31 October 1996 (1996-10-31), ISSN: 0412-1961
Attorney, Agent or Firm:
SHENZHEN DAOQINZHIKU INTELLECTUAL PROPERTY AGENCY (LLP) (CN)
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