纳米埃洛石装载苯并三氮唑自修复涂层研究  

Preparation and Performance of Epoxy Resin Coating with Benzotriazole Inhibitor Charged Nano-halloysite Tubes

作　　者：张正阳 郭子新 周欣 孙海静 孙杰[1] ZHANG Zhengyang;GUO Zixin;ZHOU Xin;SUN Haijing;SUN Jie(School of Environmental and Chemical Engineering,Shenyang Ligong University,Shenyang 110159,China;School of Environmental and Chemical Engineering Liaoning Institute of Science and Technology,Benxi 117002,China)

机构地区：[1]沈阳理工大学环境与化学工程学院,沈阳110159 [2]辽宁科技学院冶金工程学院,本溪117002

出　　处：《中国腐蚀与防护学报》2022年第4期705-708,共4页Journal of Chinese Society For Corrosion and Protection

基　　金：2019年辽宁省教育厅一般科学研究项目(L2019lkyjc-01);2020年沈阳理工大学高层次人才引进基金项目(1010147000903)。

摘　　要：研究了高温微波加热改性后的埃洛石纳米管在装载金属缓蚀剂苯并三氮唑后,利用超声波振荡法分散,用差热分析测定样品的装载量,采用扫描电镜对涂层的表面形貌进行观察,采用电化学阻抗方法对涂层腐蚀性能进行测试。结果表明,改性之后纳米埃洛石的表面形貌呈现破碎的管状结构的聚合体,超声震荡8 h具有最好的担载效果,苯并三氮唑负载在纳米埃洛石中形成的环氧涂层具有良好的保护金属材料的作用。Halloysite nanotubes were modified by microwave heating, and then charged with metal corrosion inhibitor benzotriazole, while dispersed via ultrasonic vibration in a solution containing tetraethyl orthosilicate and silane coupling agent. Finally, the self-healing coating made of epoxy resin and the prepared halloysite nanotubes was applied on brass plate. The charging capacity of inhibitor into halloysite nanotubes is measured by differential thermal analysis, and the corrosion performance of the coating is assessed by electrochemical impedance method. SEM observation revealed that the surface morphology of nano halloysite nanotubes after microwave heating presented as a broken tubular structure like aggregates. The charging amount of corrosion inhibitor varied with the charging time during ultrasonic vibration. The charging efficiency of corrosion inhibitor benzotriazole for halloysite nanotubes may reach the best by ultrasonic vibration for 8 h. The electrochemical impedance increases with time for the coating/brass plate, which implies that the epoxy coating coupled with halloysite nanotubes charged with benzotriazole inhibitor has a good protective effectiveness for metal materials.

关 键 词：纳米埃洛石管 缓蚀剂 苯三唑 自修复涂层 

分 类 号：TG174.4[金属学及工艺—金属表面处理]