镁锂合金表面自修复防护有机涂层的构筑及机理

项目名称： 镁锂合金表面自修复防护有机涂层的构筑及机理

项目编号： No.51301050

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 一般工业技术

项目作者： 王艳力

作者单位： 哈尔滨工程大学

项目金额： 25万元

中文摘要： 自修复涂层是现在腐蚀与防护领域研究的热点问题之一，本项目提出了分子筛作为Ce3+腐蚀抑制剂存储器，并利用硅烷提高存储器和有机涂层的相容性，由Ce3+、分子筛和硅烷在镁锂合金表面构建自修复防护有机涂层。研究分子筛的孔容、孔径、比表面、以及骨架结构对Ce3+离子交换能力、Ce3+控制释放的影响，研究带有不同官能团的硅烷与有机涂层、以及硅烷与分子筛之间的键合作用，研究Ce3+控制释放过程中的腐蚀电化学行为，分析自修复过程中发生的电化学反应，研究影响有机涂层自修复能力的主要因素，探索有机涂层的自修复防护机理，以实现对镁锂及其他金属合金的长效防护，也为自修复体系的构建提供可靠的数据和理论基础。

中文关键词： 自修复；镁锂合金；腐蚀抑制剂；分子筛；硅烷

英文摘要： Nowadays, self-healing coating has been the research hot spot in the field of corrosion resistance. This proposal is to construct self-healing protective organic coating composed of Ce3+ ions, silane agents and zeolites on Mg-Li alloy surface, on condition that zeolites can act as reservoirs of Ce3+ ions corrosion inhibitor, and silane agents are able to efficiently improve the compatibility between reservoirs and epoxy coatings. Influence of the textural properties of zeolites, such as pore volume, pore size, specific surface area on the exchange ability, controlled release of Ce3+ ions will be studied in detail. The ligands intraction between the silane with different functional groups and the organic coating as well as zeolites is also to be investigated. In addition, the crrosion electrochemical behavior during the controlled release process of corrosion inhibitor, and the electrochemical reaction of self-healing process will be analyzed. Subsequently, the main factors affecting the self-healing ability will be discussed to propose the self-healing mechanism, which will help to achieve long term protection of Mg-Li alloys and other metals, and put forward reliable data and theoretical foundation based on construction of self-healing system.

英文关键词： self-healing；Mg-Li alloy；corrosion inhibitor；zeolite；silane