单宁酸法制得氧化钴纳米棒在环氧涂层中的耐腐蚀性  

Corrosion resistance of cobalt oxide nanorods prepared by tannic acid method in epoxy coatings

作　　者：易飞 YI Fei(CNOOC(China)Co.,Ltd.,Shanghai Branch,Shanghai 200050,China)

机构地区：[1]中海石油(中国)有限公司上海分公司,上海200050

出　　处：《化学工程师》2023年第9期109-112,共4页Chemical Engineer

摘　　要：通过低温单宁酸沉淀法制备Co_(3)O_(4)纳米棒,将其作为涂层填料可以有效提高涂层的耐腐蚀性能,同时检验了填料的最佳添加量。EIS与SVET的结果表明,Co_(3)O_(4)填料具有阻碍金属腐蚀的阴、阳极反应的能力,添加量为20wt%时,涂层耐腐蚀性最佳。The Co_(3)O_(4) nanorods were prepared by low-temperature tannic acid precipitation method,which could effectively improve the corrosion resistance of coatings as coating fillers,and the optimal content of fillers is tested.The results of EIS and SVET showed that the Co_(3)O_(4) filler had the ability to hinder the anodic and anodic reactions of metal corrosion,and the coating with the filler content of 20wt% had the best corrosion resistance.

关 键 词：氧化钴 防腐 交流阻抗谱 环氧涂层 

分 类 号：TB34[一般工业技术—材料科学与工程]