胡 勇,胡永淇,李申申,张会莹,褚 成,王力华.钛合金表面GO/纳米ZnO复合涂层的制备及性能[J].稀有金属材料与工程,2022,51(8):2915~2922.[HU Yong,HU Yongqi,LI Shenshen,ZHANG Huiying,CHU Cheng,WANG Lihua.Preparation and properties of Graphene oxide/Nano-sized zinc oxide composite coating on titanium alloys[J].Rare Metal Materials and Engineering,2022,51(8):2915~2922.]
钛合金表面GO/纳米ZnO复合涂层的制备及性能
投稿时间:2021-07-08  修订日期:2021-07-29
中文关键词:  Ti6Al4V  氧化石墨烯  纳米氧化锌  腐蚀性能  抗菌活性
基金项目:甘肃省科技计划资助(No. 17ZD2GC011);兰州理工大学红柳一流学科建设基金(No.CGZH001)
中文摘要:
      为了有效解决生物医用钛合金长期植入人体后,易发生细菌感染和面临有害金属离子释放的问题,采用水热反应和涂覆方法,分别在聚多巴胺(PDA)预处理的Ti6Al4V合金表面制备了氧化石墨烯涂层(GP/T)和氧化石墨烯/纳米氧化锌复合涂层(GZP/T)。系统分析了两种涂层的物相结构、微观形貌、及其在林格氏液中的腐蚀性能和在大肠杆菌环境中的抗菌性能。研究结果表明:聚多巴胺发挥“双面胶”桥接作用,有效增强了涂层与基底间的化学键合;GP/T涂层抗菌率随着GO浓度增大而增大;GZP/T纳米复合涂层相较Ti6Al4V基材具有优异的耐蚀性,该复合涂层中ZnO起主要抗菌作用。
Preparation and properties of Graphene oxide/Nano-sized zinc oxide composite coating on titanium alloys
英文关键词:Ti6Al4V, Graphene  oxide, Nano-sized  zinc oxide, Corrosion  performance, Antimicrobial  activity
英文摘要:
      In order to effectively solve the problem of bacterial infection and the release of harmful metal ions after long-term implantation of biomedical titanium alloys in the human body, Graphene oxide coating (GP/T) and Graphene oxide/Nano-zinc oxide composite coating (GZP/T) were prepared on the surface of Ti6Al4V alloy pretreated by Polydopamine(PDA) respectively with hydrothermal reaction and coating methods. The phase structure, microstructure, corrosion properties in Ringer"s solution and antibacterial properties in Escherichia coli environment of the two coatings were systematically analyzed. The results show that Polydopamine plays the role of "double-sided tape" bridging and effectively enhances the chemical bond between the coating and the substrate. The antibacterial rate of GP/T coating increased with GO concentration increasing. The GZP/T nanocomposite coating has superior corrosion resistance compared with Ti6Al4V substrates, and the ZnO in the composite coating plays a major antibacterial effect.
作者单位E-mail
胡 勇 兰州理工大学材料科学与工程学院 luthuyong@outlook.com 
胡永淇 兰州理工大学材料科学与工程学院  
李申申 兰州理工大学材料科学与工程学院 lutlishen@163.com 
张会莹 兰州理工大学材料科学与工程学院  
褚 成 兰州理工大学材料科学与工程学院  
王力华 兰州理工大学材料科学与工程学院  
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