塑料科技2026，Vol.54Issue(4)：14-19,6.DOI:10.15925/j.cnki.issn1005-3360.2026.04.003
改性Ce-MOF/环氧纳米复合涂层的制备和性能研究
Study on Preparation and Properties of Modified Ce-MOF/Epoxy Nanocomposite Coating
摘要
Abstract
To enhance the protective performance of epoxy coatings on steel,a cerium-based metal-organic framework(Ce-MOF)was synthesized.The as-prepared Ce-MOF was sequentially treated with benzotriazole(BTA)and cationic polyacrylamide(CPAM)to yield a modified Ce-MOF(BTA@Ce-MOF@CPAM).Incorporation of this hybrid into an epoxy resin afforded a BTA@Ce-MOF@CPAM/epoxy nanocomposite coating.The pristine and modified Ce-MOFs were characterized by scanning electron microscopy,transmission electron microscopy,zeta-potential measurements and X-ray diffraction,while nitrogen adsorption was employed to analyze their pore structure.Electrochemical impedance spectroscopy revealed that the addition of 3%modified Ce-MOF significantly improved the self-healing capability of mechanically damaged epoxy films.After immersion in 3.5%NaCl aqueous solution for 48 h,the impedance modulus(|Z|0.01 Hz)at 0.01 Hz of the modified Ce-MOF/epoxy nanocomposite coating increased from 2.4×103 Ω·cm2 for the pure epoxy coating to 3.4×104 Ω·cm2.The coating hardness and friction-wear performance test results indicated that CPAM encapsulation facilitated the improvement of physical barrier performance against corrosive media and anti-mechanical damage performance of the nanocomposite coating.关键词
含铈金属有机骨架/环氧涂层/阳离子型聚丙烯酰胺/防腐蚀/机械性能Key words
Ce-MOF/Epoxy coating/CPAM/Anti-corrosion/Mechanical property分类
化学化工引用本文复制引用
张浩楠,王柏臣,李伟,高禹..改性Ce-MOF/环氧纳米复合涂层的制备和性能研究[J].塑料科技,2026,54(4):14-19,6.基金项目
辽宁省重点研发项目(2024JH2/102400037) （2024JH2/102400037）
