氧化锌负载罗丹明B酰肼掺杂环氧复合涂层的制备及其耐蚀性
Preparation and Corrosion Resistance of Epoxy Coating Mixed by ZnO Hollow Microcontainer Containing Rhodamine B Hydrazide
摘 要
采用水热法合成了氧化锌(ZHM)中空微米球，通过浸渍法得到负载罗丹明B酰肼(RHBH)的氧化锌微球(ZHM-RHBH)，采用红外光谱(FT-IR)对其结构进行表征。将ZHM-RHBH掺杂到环氧树脂中，在Q235碳钢基体上制备功能涂层，利用动电位极化曲线和电化学阻抗谱(EIS)考察了ZHM-RHBH对涂层缺陷处金属腐蚀的作用。结果表明，掺杂于涂层中的ZHM-RHBH不仅能够通过荧光响应指示涂层缺陷还可以抑制涂层缺陷处的腐蚀。
罗丹明B酰肼
环氧树脂
自修复
自指示
zinc oxide
rhodamine B hydrazide
epoxy resin
self-healing
self-diagnosis
Abstract
ZnO hollow microspheres (ZHM) were synthesized by hydrothermal method. The ZHM containing rhodamine B hydrazide (ZHM-RHBH) was obtained by loading RHBH to ZHM using impregnation method, and characterized by Fourier transform infrared spectroscopy (FT-IR). A functional coating was prepared on Q235 carbon steel substrate by adding ZnO-RHBH into the epoxy resin. The effect of ZHM-RHBH on metal corrosion at coating defects was studied by potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS). It was found that the corrosion occurring at coating defects was inhibited by doping ZHM-RHBH into epoxy coating, and the ZHM-RHBH not only had certain healing effect for coating defects, but also could diagnose corrosion by fluorescence response.
中图分类号 TG174.4
所属栏目 涂层
基金项目 上海市基础研究重点项目(11JC1404400)
收稿日期 2014/8/19
修改稿日期
网络出版日期
作者单位点击查看
备注张大全(1968-)，教授,博士，从事智能防腐涂层的开发与研究,
引用该论文: ZHU Li-hua,SUN Yong-fu,LI He-shun,ZHANG Da-quan,GAO Li-xin. Preparation and Corrosion Resistance of Epoxy Coating Mixed by ZnO Hollow Microcontainer Containing Rhodamine B Hydrazide[J]. Corrosion & Protection, 2015, 36(4): 317
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