Preparation and Characterization of a Sol–Gel AHEC Pore-Sealing Film Prepared on Micro Arc Oxidized AZ31 Magnesium Alloy

• Published in: Metals (Basel ) Vol. 11; no. 5; p. 784
• Main Authors: Zhang, Longlong, Wu, Yuanzhi, Zeng, Tian, Wei, Yu, Zhang, Guorui, Liang, Jun, Cao, Baocheng
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.05.2021
• Subjects: aminated hydroxyethyl cellulose; AZ31 magnesium alloy; Biocompatibility; Biodegradability; Biodegradable materials; biological materials; Biomedical materials; Body fluids; Bones; Cellulose; corrosion; Corrosion potential; Corrosion resistance; Corrosion resistant alloys; cytotoxicity; Electrodes; Experiments; Fractures; Gel spinning; Hydrogen; Hydroxyethyl celluloses; In vitro methods and tests; Magnesium alloys; Magnesium base alloys; Medical materials; Medical research; Morphology; Oxidation; Oxide coatings; pore-sealing; Sealing; Sol-gel processes; Spectrum analysis; Beijing China; Japan
• ISSN: 2075-4701; 2075-4701
• DOI: 10.3390/met11050784

The purpose of this study was to improve the cellular compatibility and corrosion resistance of AZ31 magnesium alloy and to prepare a biodegradable medical material. An aminated hydroxyethyl cellulose (AHEC) coating was successfully prepared on the surface of a micro-arc oxide +AZ31 magnesium alloy by sol–gel spinning. The pores of the micro-arc oxide coating were sealed. A polarization potential test analysis showed that compared to the single micro-arc oxidation coating, the coating after sealing with AHEC significantly improved the corrosion resistance of the AZ31 magnesium alloy and reduced its degradation rate in simulated body fluid (SBF). The CCK-8 method and cell morphology experiments showed that the AHEC + MAO coating prepared on the AZ31 magnesium alloy had good cytocompatibility and bioactivity.