MAGNESIUM ALLOY MODIFIED BY IN-SITU MAGNESIUM HYDROXIDE NANOSHEET LAYER AND PREPARATION METHOD AND APPLICATION THEREFOR

WIPO Patent Application WO/2021/035875

A1

A magnesium alloy material, being a magnesium alloy having an in-situ magnesium hydroxide nanosheet layer. The material is prepared by means of a hydrothermal reaction of magnesium alloy in alkaline conditions. The protective function of the magnesium hydroxide nanosheet layer formed in-situ significantly strengthens the anti-corrosiveness of the magnesium alloy and, as the release rate of the magnesium ions can be significantly reduced, biocompatibility is also significantly improved. In addition, the two-dimensional nanolayer structure has non-releasable physical antibacterial properties that depend on contact, and therefore has extremely high prospects for application in the field of medical implants.

WANG GUOMIN (CN)
WANG HUAIYU (CN)
CHU KIMHO PAUL (CN)

PCT/CN2019/109475

March 04, 2021

September 30, 2019

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CHINA MOREFOUND TECH LTD SHENZHEN (CN)

C23C22/60; A61L31/02; A61L31/08; A61L31/16

CN108950649A	2018-12-07
CN103614717A	2014-03-05
CN106567062A	2017-04-19
US20140277396A1	2014-09-18
JP2014167172A	2014-09-11
JP2014189846A	2014-10-06

YANYING ZHU ET AL.: "Growth and characterization of Mg(OH)2 film on magnesium alloy AZ31", APPLIED SURFACE SCIENCE, vol. 257, 28 February 2011 (2011-02-28), XP028368526, DOI: 20200521152354
XIAO-LI FAN ET AL.: "Corrosion resistance of nanostructured magnesium hydroxide coating on magnesium alloy AZ31: influence of EDTA", RARE METALS, vol. 38, no. 6, 4 February 2019 (2019-02-04), XP036795935, DOI: 20200522102451X

JIAQUAN IP LAW FIRM (CN)

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