十八胺微胶囊搭载环氧涂层的制备及耐蚀机理研究  

Properties and corrosion resistance mechanism of octadecylamine microcapsules loaded with epoxy resin

作　　者：曹启栋 亢淑梅[1] 鲁宸硕 李鹏宇 霍兆康 Cao Qidong;Kang Shumei;Lu Chenshuo;Li Pengyu;Huo Zhaokang(School of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan 114000,China)

机构地区：[1]辽宁科技大学材料与冶金学院,辽宁鞍山114000

出　　处：《电镀与精饰》2024年第6期25-33,共9页Plating & Finishing

基　　金：辽宁省自然科学基金项目资助(2022-MS-355)。

摘　　要：含有微胶囊的自修复涂层被应用于船舶防腐领域,能够有效减缓船舶构件在复杂海洋环境中的腐蚀行为。本文以十八胺(ODA)为芯材、羟丙基-β-环糊精(HP-β-CD)为壁材合成微胶囊,并对微胶囊表面形貌、结构进行了表征。将羟丙基-β-环糊精&十八胺(HP-β-CD@ODA)微胶囊嵌入到环氧涂层中,制备具有自修复功能的涂层,并对自修复涂层的微观结构和耐蚀性能进行了研究。结果表明:所制得的HP-β-CD@ODA微胶囊呈现光滑的球形,且ODA完全被HP-β-CD包覆,封装率为12.7%;微胶囊添加量为10%的环氧涂层,其耐蚀性较碳钢基体和纯环氧涂层试样具有明显的提高,表明所制得的自修复涂层具有良好的缓蚀效果,能够显著提高材料的耐蚀性。To effectively mitigate the corrosion behaviour of ship components in complex marine environments,self-healing coatings with microcapsules are used in the field of marine corrosion protection.In this paper,microcapsules were made from octadecylamine(ODA)as the core material and hydroxypropyl-β-cyclodextrin(HP-β-CD)as the wall material,and the surface morphology and structure of the microcapsules were characterized.The microcapsules of hydroxypropyl-β-cyclodextrin@octadecylamine(HP-β-CD@ODA)were embedded into the epoxy coating to produce a coating with self-healing function;and the microstructure and corrosion resistance of the self-healing coating were investigated.The results showed that the HP-β-CD@ODA microcapsules were smooth and spherical,and the ODA was completely covered by HP-β-CD,and the coating amount of ODA was 12.7%.The corrosion resistance of the epoxy coating with 10%microcapsule addition was significantly improved compared with that of the carbon steel substrate and the pure epoxy coating specimens,indicating that the self-repairing coating had good corrosion inhibition and could significantly improve the corrosion resistance of the material.

关 键 词：微胶囊 环氧树脂 十八胺 自修复涂层 耐蚀性 

分 类 号：TG146[一般工业技术—材料科学与工程]