镁合金表面金属有机框架材料的制备及防腐应用研究综述  

Review on the Preparation and Corrosion-resistant Application of Metal-organic Frameworks for Magnesium Alloy Surface

作　　者：王筱月 王璐瑶 马晓慧 王燕华[1] WANG Xiaoyue;WANG Luyao;MA Xiaohui;WANG Yanhua(College of Chemistry and Chemical Engineering,Ocean University of China,Shandong Qingdao 266100,China)

机构地区：[1]中国海洋大学化学化工学院,山东青岛266100

出　　处：《表面技术》2025年第5期61-71,共11页Surface Technology

摘　　要：镁合金具有密度小、比强度高、电磁屏蔽性能优异、生物相容性好等优点,是一种具有广阔应用前景的金属结构材料,然而耐腐蚀性差是限制其发展的主要因素。近年来,为了解决镁合金在应用环境中腐蚀严重的问题,新兴材料金属有机框架化合物(Metal-Organic Framework,MOFs)被逐步应用到镁合金表面。MOFs由金属中心及有机配体组成,具有比表面积大、活性位点丰富、结构组成可控、易于功能化等特点,是一种性能优越的新型防腐材料。综述了2020年以来镁合金表面MOFs材料的制备方法及防腐应用。首先根据不同的制备方式,将MOFs在镁合金上的合成分为粉体制备和原位合成,综述了沉积法、溶剂热法、电化学法等常见合成手段;其次从缓蚀剂、保护涂层、填料和纳米容器4个方面介绍了MOFs在镁合金上的防腐应用,探讨了不同功能MOFs在镁合金表面的防腐蚀效果,与传统防腐材料相比,MOFs新型材料具有pH响应、可设计性强等特点,进一步扩展了其应用场景;最后总结了MOFs作为防腐材料时异相制备困难、涂层较薄等不足之处,对其在镁合金表面防腐应用做了进一步展望。Magnesium alloy has the advantages of low density,high specific strength,excellent electromagnetic shielding performance and good biocompatibility,making it a promising structural material in aerospace,automobile manufacturing,electronic devices,biomedicine and other fields.However,its development has been hindered by inadequate corrosion resistance in application environments.In recent years,in order to address the severe corrosion issues of magnesium alloys in practical applications,the emerging material metal-organic frameworks(MOFs)has been extensively utilized for surface modification.MOFs consist of the metal centers and the organic ligands,offering high specific surface area,abundant active sites,controllable structure composition,and easy functionalization,thus making them a superior new type of corrosion-resistant material.The work aims to present a comprehensive review on the recent preparation methods and the corrosion-resistant applications of MOFs on magnesium alloys.The synthesis of MOFs on magnesium alloys can be classified into two primary methods,including powder preparation and in-situ synthesis.The main difference between these two methods lies in whether the MOFs are prepared as powders or grown directly on the surface of the magnesium alloy.This difference is crucial as it impacts the final properties and applications of the resulting MOFs.The advantages and disadvantages of these two methods are discussed in detail,along with the most common synthetic techniques,such as the deposition method,the solvothermal method,and the electrochemical method.Each method has its unique benefits and drawbacks,making it necessary to carefully consider the specific requirements of each application when a synthesis method is adopted.The application of MOFs materials is discussed for the corrosion protection of magnesium alloys,encompassing corrosion inhibitors,protective coatings,fillers,and nano-containers.The utilization of MOFs with corrosion-inhibiting properties requires careful selection of the metal ce

关 键 词：镁合金 金属有机框架 防腐材料 涂层 填料 纳米容器 

分 类 号：TG174.4[金属学及工艺—金属表面处理]