高度取向磷酸锆/环氧树脂纳米复合涂层的防腐蚀性能  

Enhanced Anticorrosion Performance of Highly Oriented Zirconium Phosphate/Epoxy Resin Nanocomposite Coatings

作　　者：雷凡 冯民生 李涛 Hung-Jue Sue 李姜[3] Fan Lei;Minsheng Feng;Tao Li;Hung-Jue Sue;Jiang Li(School of Mechanical Engineering,Chengdu University,Chengdu 610106,China;Polymer Technology Center,Department of Materials Science and Engineering,Texas A&M University,College Station,Texas 77843,United States;State Key Laboratory of Polymer Materials Engineering,Polymer Research Institute of Sichuan University,Chengdu 610065,China)

机构地区：[1]成都大学机械工程学院,四川成都610106 [2]Polymer Technology Center,Department of Materials Science and Engineering,Texas A&M University,College Station,TX 77843-3123,USA [3]高分子材料工程国家重点实验室(四川大学)四川大学高分子研究所,四川成都610065

出　　处：《高分子材料科学与工程》2024年第4期72-78,共7页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51873112);成都大学人才引进项目(2081923089);四川省大学生创业训练计划(S202311079009X)。

摘　　要：针对金属防腐蚀的需求,采用简单的喷涂法在金属基底上制备了高度取向磷酸锆/环氧树脂纳米复合涂层。利用透射电镜和X射线衍射分析探究了复合涂层中磷酸锆纳米粒子的分散形貌,采用电化学交流阻抗谱和动电位极化曲线等测试评价了复合涂层的防腐蚀性能和其作用机理。结果表明,高度取向的磷酸锆纳米粒子可有效地增加水、氧气、电解液的扩散路径,改善涂层的防腐蚀性能。此外,该绝缘涂层也可进一步阻止腐蚀介质的迁移,增加涂层电阻,显著提高环氧树脂涂层对金属基底的长期防护性能。Aiming at the demand of metal anti-corrosion,the highly oriented zirconium phosphate/epoxy resin nanocomposite coating was prepared on metal substrate by simple spraying method.The distribution of zirconium phosphate nanoparticles in the nanocomposite coating was investigated by TEM and XRD.The electrochemical impedance spectroscopy and potentiodynamic polarization curves were used to evaluate the anti-corrosion performance and mechanism of the nanocomposite coating.The results show that the highly oriented zirconium phosphate nanoparticles can effectively increase the diffusion path of water,oxygen and electrolyte,thus improving the anti-corrosion performance of the coating.In addition,the insulated coating can further prevent the migration of corrosive media,increase the resistance of the coating,and significantly improve the long-term protective effect of the epoxy resin coating on metal substrate.

关 键 词：环氧树脂 磷酸锆 高度取向 防腐蚀性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]