电压对含锌电解液微弧氧化TiO_(2)膜结构和性能的影响  

Effect of Voltage on TiO_(2) Film by Micro-arc Oxidation of Electrolyte Containing Zinc

作　　者：刘磊[1] 马凤仓[1] 康彬彬 LIU Lei;MA Fengcang;KANG Binbin(School of Materials and Chemistry,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学材料与化学学院,上海200093

出　　处：《广州化学》2023年第6期70-74,I0004,共6页Guangzhou Chemistry

摘　　要：以纯钛(TA4)为原料,用含乙酸锌电解液制备微弧氧化(MAO)TiO_(2)膜,探究不同电压对膜的表面结构、亲水性、耐腐蚀性和抗菌性能的影响。结果表明,MAO处理后,涂层表现出多孔结构,主要由Ti相、锐钛矿和金红石TiO_(2)相组成。随着电压的升高,膜层中金红石TiO_(2)相增加,膜层上的微孔平均直径增加,孔隙率减小。所有膜层表现出良好的亲水性,与纯钛板相比,所有膜层均具有良好的抗菌性能,其中400V条件下形成的MAO涂层的抗菌性能最好,达到91%,并且其耐腐蚀性最强。综上所述,当MAO电压为400V时,制备的膜层综合性能最好。Titanium and titanium alloys are ideal materials for bone and tooth repair and replacement in humans,but they lack long-term corrosion resistance and antimicrobial properties in humans.Therefore,surface modification methods are often adopted to improve the application scope of titanium and its alloys.In this paper,MAO film layers were prepared using zinc acetate containing electrolyte to explore the effects of different voltages on the surface structure,hydrophilicity,corrosion resistance,and antibacterial properties of their film layers.The results showed that after Mao treatment,the coating exhibited a porous structure,which was mainly composed of Ti phase,anatase and rutile TiO_(2) phases.As the voltage increases,the rutile TiO_(2) phase in the membrane layer increases,the average diameter of micropores on the membrane layer increases,and the porosity decreases.All films show good hydrophilicity.Compared with pure titanium plate,all film layers have good antimicrobial performance,among which the MAO coating formed at 400v has the best antimicrobial performance with 91% and its corrosion resistance is the strongest.In summary,when the Mao voltage is 400 V,the comprehensive performance of the prepared membrane layer is the best.

关 键 词：微弧氧化 TiO_(2)膜层 乙酸锌 电压 抗菌性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]