纳米埃洛石装载苯并三氮唑自修复涂层研究

doi:10.11902/1005.4537.2021.127

中国腐蚀与防护学报

2022, Vol. 42

Issue (4): 705-708 DOI: 10.11902/1005.4537.2021.127

研究报告

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纳米埃洛石装载苯并三氮唑自修复涂层研究

张正阳¹, 郭子新², 周欣¹(

), 孙海静¹, 孙杰¹

^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

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

ZHANG Zhengyang¹, GUO Zixin², ZHOU Xin¹(

), SUN Haijing¹, SUN Jie¹

^1.School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China
^2.School of Environmental and Chemical Engineering Liaoning Institute of Science and Technology, Benxi 117002, China

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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。

关键词 ：纳米埃洛石管, 缓蚀剂, 苯三唑, 自修复涂层

Abstract：

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.

Key words： halloysite nanotube corrosion inhibitor benzotriazole smart coating

收稿日期: 2021-06-05

ZTFLH:

TG174.4

基金资助: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)

通讯作者: 周欣 E-mail: zhouxin@alum.imr.ac.cn

Corresponding author: ZHOU Xin E-mail: zhouxin@alum.imr.ac.cn

作者简介: 张正阳,男,1997年生,硕士生

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引用本文:

张正阳, 郭子新, 周欣, 孙海静, 孙杰. 纳米埃洛石装载苯并三氮唑自修复涂层研究[J]. 中国腐蚀与防护学报, 2022, 42(4): 705-708.
Zhengyang ZHANG, Zixin GUO, Xin ZHOU, Haijing SUN, Jie SUN. Preparation and Performance of Epoxy Resin Coating with Benzotriazole Inhibitor Charged Nano-halloysite Tubes. Journal of Chinese Society for Corrosion and protection, 2022, 42(4): 705-708.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2021.127 或 https://www.jcscp.org/CN/Y2022/V42/I4/705

图1 微波处理前后埃洛石纳米管的SEM形貌

图2 不同时间超声振荡后BTA-HNTs的TG和DTG曲线

图3 在3.5%NaCl溶液中纳米改性埃落石装载BTA涂层的电化学阻抗谱图

图4 电化学阻抗谱等效电路图

表1 不同时间的电化学阻抗谱拟合参数

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