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Title:
PREPARATION METHOD OF SELF-DISPERSING NANO COPPER WITH LONG ORGANICE CARBON CHAIN, NANO COPPER PREPARATION AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/012754
Kind Code:
A1
Abstract:
The invention provides a preparation method of self-dispersing nano copper with a long organic carbon chain, comprising the following steps: 1) placing a copper source aqueous solution containing divalent copper ions in a nitrogen, argon, or air atmosphere, and heating it to 40°C to 75°C; 2) adding a reducing agent to the reaction system in step 1) to obtain a reduced copper source solution; 3) mixing a HDDP coating with an organic solvent at a final concentration of 0.1mol/L to 0.9mol/L to prepare a coating solution; 4) adding the coating solution obtained in the step 3) to the reduced copper source solution obtained in the step 2) to react; and 5) obtaining a nano copper product; wherein, the molar ratio of the copper source to the reducing agent is 1:20- 20:1; the molar ratio of the copper source to the HDDP coating is 1:5- 5:1. The invention realizes the synthesis of a stable and self-dispersing nano copper preparation with an oily and emulsion system.

Inventors:
ZHAO YANG (CN)
SHI ZHOUZHOU (CN)
ZHAO CHAO (CN)
FAN WENZHI (CN)
FAN CHENGLI (CN)
Application Number:
PCT/CN2020/090042
Publication Date:
January 28, 2021
Filing Date:
May 13, 2020
Export Citation:
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Assignee:
FRANCOOL TECH SHENZHEN CO LTD (CN)
International Classes:
B22F9/24; B22F1/00; B22F1/054; B22F1/102; B82Y30/00; B82Y40/00; C10M125/04
Domestic Patent References:
WO2015191173A12015-12-17
Foreign References:
CN101200667A2008-06-18
CN1709617A2005-12-21
CN1618799A2005-05-25
CN101259531A2008-09-10
CN1766008A2006-05-03
CN102407344A2012-04-11
CN104028778A2014-09-10
CN102198513A2011-09-28
US7749947B22010-07-06
Other References:
YANG, FENG ET AL.: "Self-Repairing Mechanism and Tribological Properties of Nano-Cu as Lubricating Oil Additives", MATERIALS PROTECTION, vol. 51, no. 2,, 15 February 2018 (2018-02-15), pages 22 - 25, XP055775193, ISSN: 1001-1560
Attorney, Agent or Firm:
BEIJING ZHIQIAN INTELLECTUAL PROPERTY AGENCY (CN)
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