石墨烯在舰船材料防腐中的应用及展望

Graphene and its applications in anticorrosion of ship materials

[目的]舰船材料的腐蚀不仅影响舰船航行安全、降低舰船服役期限,而且还会造成维修负担、产生高额的维修费用,因此进行舰船材料防腐研究,设计新型舰船材料防腐剂具有重要的科学价值和现实意义。[方法]总结现有舰船材料防腐手段存在的问题,提出石墨烯防腐涂料的结构特性及其在舰船材料防腐领域的应用前景。然而,石墨烯涂层由于自身结构缺陷及其与基体耦合作用弱等因素,会导致其与基体在长期作用时出现加速金属腐蚀的现象。针对这一问题,总结出功能化处理石墨烯的方法,将功能化石墨烯与基体复合,得到改性石墨烯/聚合物复合材料并对其进行电化学测试。[结果]结果表明,经过功能化处理的石墨烯在一定程度上能提高涂层的防腐性能。[结论]结合当前舰船材料防腐涂料的研究进展和趋势,可为石墨烯防腐涂料在舰船材料防腐领域的应用提供理论基础。

[Objectives]The corrosion of ship materials not only affects the navigation safety and shortens the service period,but also causes maintenance burden and high maintenance costs.Thus,it is of great scientific value and practical significance to carry out research on anticorrosion of the ship materials and to design a new type of ship preservative.[Methods]This paper summarizes the problems of existing anticorrosion measures of the ship materials,and the structural characteristics of graphene anticorrosive coating and the coating applications in the ship anticorrosion field.However,the graphene coating may accelerate the corrosion rate of metal during long-term use due to structural defects,weak coupling with matrix and other factors.In order to solve this problem,the functionalized treatment by compounding the graphene with the matrix is put forward to obtain a modified graphene/polymer composite which is then subject to electrochemical tests.[Results]The results show that the functionalized graphene can improve the anticorrosion performance of the coating to a certain extent.[Conclusions]By combining the research progress and trends of the current ship anticorrosive coatings,this provides a theoretical basis for the application of the graphene anticorrosive coating in the ship anticorrosion field.