金属表面溶胶-凝胶防腐蚀涂层的研究进展

发布时间：2018-02-15 00:17

本文关键词： 溶胶-凝胶法防腐蚀金属涂层　出处：《表面技术》2015年06期 　论文类型：期刊论文

【摘要】：在各种防腐蚀的方法中,溶胶-凝胶法是一种操作简单、环境友好、成本低廉的表面涂层制备技术,被广泛应用于许多金属材料表面的腐蚀防护上。简单地介绍了溶胶-凝胶法的基本原理以及易改性、易控温、无污染的优点,重点阐述了影响涂层耐腐蚀性能的相关工艺参数,包括水解温度、p H值、陈化时间、反应物浓度、热处理温度等。详细综述了溶胶-凝胶法制备防腐蚀涂层工艺的特点与研究现状,经过单一无机氧化涂层到多元复合涂层的发展,涂层的性能得到提升,应用范围更加广泛。介绍了溶胶-凝胶涂层的3个防腐蚀机理,包括屏蔽作用、缓蚀钝化作用、牺牲阳极保护作用,阐述了涂层的防腐蚀机制,为研究新的防腐蚀工艺提供理论基础。最后,总结了目前防腐蚀涂层研究过程中所遇到的困难,并展望了可能的解决方法,为未来的研究提供了发展方向。
[Abstract]:The sol-gel method is a simple, environment-friendly and low-cost surface coating preparation technology in various anticorrosion methods. It is widely used in the corrosion protection of many metal materials. The basic principle of sol-gel method and the advantages of easy modification, temperature control and no pollution are introduced. It includes hydrolysis temperature (pH), aging time, reactant concentration, heat treatment temperature, etc. The characteristics and research status of anti-corrosion coating prepared by sol-gel method are reviewed in detail. Through the development of single inorganic oxidation coating and multicomponent composite coating, the properties of the coating have been improved and its application scope has been wider. The three anti-corrosion mechanisms of sol-gel coating are introduced, including shielding, corrosion inhibition and passivation. The corrosion protection mechanism of the coating is described, which provides a theoretical basis for the study of the new anticorrosive process. Finally, the difficulties encountered in the research of the anticorrosive coating are summarized, and the possible solutions are prospected. It provides the development direction for the future research.
【作者单位】：上海工程技术大学材料工程学院;
【基金】：上海工程技术大学研究生科研创新项目(14KY0515)~~
【分类号】：TG174.4

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