一种医用镁合金表面耐蚀抗菌促成骨涂层及其制备方法

By preparing ZnO/CuO/SrO@Ca-P MAO coatings and Zn-Cu-Sr MS coatings on the surface of medical magnesium alloys, the problems of excessively rapid degradation rate and insufficient bioactivity of magnesium alloys were solved, achieving corrosion resistance, antibacterial properties and bone-promoting effects.

CN117547644BActive Publication Date: 2026-07-17DONGGUAN EONTEC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGGUAN EONTEC CO LTD
Filing Date
2023-10-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Medical magnesium alloys degrade too quickly and have insufficient biological activity in the physiological environment of the body, which limits their clinical application.

Method used

ZnO/CuO/SrO@Ca-P MAO coating and Zn-Cu-Sr MS coating were prepared on the surface of magnesium alloy by mechanical grinding, shot peening, MAO and MS technology, forming a ceramic + metal layered composite coating. The interlayer bonding strength was improved by post heat treatment.

Benefits of technology

It effectively reduces the corrosion rate of magnesium alloys by 50.0% to 75.0%, increases the antibacterial rate by 85% to 91%, promotes osteoblast activity by 10% to 15%, and meets the requirements for tissue repair.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明针对医用镁合金降解速率过快、生物活性不足的问题，提出了一种医用镁合金表面耐蚀抗菌促成骨涂层及其制备方法。所述医用镁合金为含一种或一种以上生物相容性元素(如Zn、Ca、Sr、Mn等)的镁合金；所述涂层为陶瓷+金属层状复合涂层，从基体由内而外依次为掺杂有ZnO、CuO、SrO氧化物粉末的Ca‑P微弧氧化涂层(ZnO / CuO / SrO@Ca‑PMAO)以及可生物降解的Zn‑Cu‑Sr MS磁控溅射涂层(Zn‑Cu‑Sr MS)；所述制备方法包括机械研磨、喷丸处理、微弧氧化、磁控溅射、后热处理。
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