Magnesium foil surface treatment method based on plasma enhanced gas-solid reaction and product
Through the magnesium foil surface treatment method based on plasma-enhanced gas-solid reaction, an amorphous dense magnesium carbonate coating is generated, which solves the problem of biomedical magnesium degradation too quickly in the human body, and significantly improves its corrosion resistance and mechanical properties.
CN119685813APending Publication Date: 2025-03-25XI AN JIAOTONG UNIV
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Patent Information
- Application Number
- CN202411941352.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-03-25
AI Technical Summary
Technical Problem
Biomedical metal magnesium degrades too quickly in the human body, resulting in local pH increase and hydrogen bubble accumulation, affecting its application in implanted materials.
Method used
The surface treatment method of magnesium foil based on plasma-enhanced gas-solid reaction is adopted. Through pretreatment, hydrothermal treatment and plasma treatment, an amorphous dense magnesium carbonate coating is generated to enhance the protective performance of the magnesium foil surface.
Benefits of technology
It significantly slows down the degradation rate of magnesium foil, improves its corrosion resistance and mechanical properties in the human body, delays the degradation process, and ensures that magnesium foil can complete its tasks stably after implantation.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to the technical field of material preparation, in particular to a magnesium foil surface treatment method based on plasma enhanced gas-solid reaction and a product, initial magnesium foil is sequentially subjected to pretreatment, hydrothermal treatment and plasma treatment, and the magnesium foil with a magnesium carbonate coating is obtained. Plasma converted from carbon dioxide gas in a radio frequency electric field reacts with the surface of biomedical magnesium metal to generate an amorphous compact protective coating, the gas is ionized by the electric field to become an aggregate containing electrons, ions, excited atoms and neutral particles, and gas fragments obtain high energy in the electric field. According to the present invention, the metal magnesium can break the chemical bond on the surface of the metal magnesium, and initiate a series of chemical reactions, such that the reactions which do not occur or are difficult to occur under the general heat balance condition can occur so as to solve the problem that the biomedical metal magnesium is rapidly degraded in the human body.
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