某氯碱厂设备的大气腐蚀严重，导致短期内涂层起泡和脱落。采用电化学阻抗谱（EIS）和盐雾试验对4种不同的重防腐涂层体系的耐腐蚀性能进行筛选，试验结果表明，3种重防腐涂层体系的防腐蚀性能均优于目前正在使用的重防腐体系；由环氧富锌底漆、环氧云铁中间漆、聚氨酯面漆组成的重防腐体系的防腐蚀效果最好。
Serious atmospheric corrosion resulting in coating blistering of the equipment happened in a chlor-alkali plant. Electrochemical impedance spectroscopy (EIS) and salt spray test were used to screen four kinds of heavy anti-corrosion system. The results all show that three kinds of tested heavy-duty anti-corrosion system are better than the currently used heavy-duty anti-corrosion system. The heavy-duty anti-corrosion system composed of epoxy zinc rich primer/epoxy intermediate coat of iron cloud/Hardtop AS is the best anti-corrosion system.
参考文献
| [1] | 程学群,尉丹,杨丽霞,林安,张三平.评价有机涂层耐蚀性能的两种方法初探[J].腐蚀与防护,2004(01):9-12. |
| [2] | 刘旭文,熊金平,曹京宜,左禹.EIS法研究3种配套涂层体系的腐蚀电化学行为[J].化工学报,2008(03):659-664. |
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