缺陷砖头状钴基金属有机框架化合物对松香基醇酸树脂清漆防腐性能的影响  

Effect of Defective Brick Cobalt Organic Framework Compounds on Corrosion Resistance of Rosin Alkyd Resin Varnish

作　　者：文新萍 余会成 石展望 黄增尉 刘苏妮 韦贻春 黄文球 Wen Xinping;Yu Huicheng;Shi Zhanwang;Huang Zengwei;Liu Suni;Wei Yichun;Huang Wenqiu(Guangxi Key Laboratory of Chemistry and Engineering of Forest Products,School of Chemistry and Chemical Engineering,Guangxi University for Nationalities,Nanning 530006,China)

机构地区：[1]广西民族大学化学化工学院,广西林产化学与工程重点实验室,南宁530006

出　　处：《涂料工业》2023年第4期8-12,20,共6页Paint & Coatings Industry

摘　　要：为提高醇酸树脂清漆耐腐蚀性,添加水热法制备的钴基金属有机框架化合物(Co-MOF)作为缓蚀剂。利用X射线衍射仪、扫描电子显微镜对Co-MOF进行表征,借助极化曲线、交流阻抗技术、盐雾腐蚀试验等,研究Co-MOF的添加量对涂层防腐性能的影响。结果表明:当Co-MOF的添加量为0.15%时,涂层的耐腐蚀性提升效果最佳,涂层的腐蚀电流密度由21.02μA/cm^(2)降低至1.83μA/cm^(2),盐雾试验与电化学测试结果一致,硬度提升至4H。说明Co-MOF的添加可以显著提高涂层的防腐性,且最佳添加量为0.15%。In order to improve the corrosion resistance of alkyd resin varnish,cobalt organic framework compounds(Co-MOF)prepared by hydrothermal method were introduced as corrosion inhibitors.The Co-MOF were characterized by X-ray diffractometer and scanning electron microscope,and the influence of Co-MOF on the corrosion resistance of the coating was studied by polarization curve,AC impedance technique and salt spray corrosion test.The results showed that the rosin alkyd resin varnish with 0.15%Co-MOF had the best corrosion resistance.The corrosion current density of the coating decreased from 21.02μA/cm^(2) to 1.83μA/cm^(2),thecorrosion protectiveefficiencyincreased from 89.45%to 99.08%.The salt spray test results were consistent with the electrochemical test results,and the coating hardness was increased to 4H.The addition of Co-MOF could significantly improve the anticorrosion performance of the coating,and the optimal addition amount was 0. 15%.

关 键 词：金属有机框架 钴 防腐 醇酸树脂 清漆 

分 类 号：TQ635.2[化学工程—精细化工]