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
雷凡 1冯民生 1李涛 1Hung-Jue Sue 2李姜3
作者信息
- 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
- 折叠
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.
Abstract
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Key words
epoxy/zirconium phosphate/highly oriented/anti-corrosion performance引用本文复制引用
基金项目
国家自然科学基金(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)
出版年
2024
NETL
NSTL
万方数据