层状双氢氧化物在防腐领域应用的研究进展

doi:10.12422/j.issn.1006-396X.2023.03.007

摘要/Abstract

摘要：

层状双氢氧化物（LDHs）简单的合成工艺、可灵活设计的结构、经济性、环保性和阴离子交换性强化了它在防腐涂料领域的应用范围。可以通过一种或多种工艺相结合实现LDHs的目标性能，也可以通过表面修饰和内部阴离子置换进行化学改性，增强LDHs的可应用性，满足不同领域的应用需求。主要聚焦了LDHs的合成方法、防腐蚀机理、防腐蚀的实际应用以及局限性和展望，分析归纳了各种合成方法的优点和不足，并对未来LDHs在防腐领域的应用研究提出了一些建议。

关键词: 层状双氢氧化物, 纳米填料, 防腐蚀, 阴离子置换, 共沉淀

Abstract:

Layered double hydroxides (LDHs) has simple synthesis process,flexible structure,economy,environmental protection and anion exchange,which strengthen its application range in the field of anti?corrosion coatings.The target properties of LDHs can be achieved by a combination of one or more processes,or chemically modified by surface modification and internal anion replacement,enhancing the applicability of LDHs to meet the needs of different fields of application.This paper mainly focuses on the synthesis method of LDHs,the mechanism of corrosion protection,the practical application of LDHs corrosion protection,and its limitations and prospects.It analyzes the advantages and disadvantages of various synthesis methods,and provides suggestions for future research on the application of LDHs in the field of corrosion protection.

Key words: Layered double hydroxide, Nanofillers, Anti?corrosion, Anion substitution, Coprecipitation

中图分类号:

TQ63

郭洪山, 杨康博, 姜浩然, 杨程程, 王传兴. 层状双氢氧化物在防腐领域应用的研究进展[J]. 石油化工高等学校学报, 2023, 36(3): 44-51.

Hongshan Guo, Kangbo Yang, Haoran Jiang, Chengcheng Yang, Chuanxing Wang. Research Progress of Layered Double Hydroxide in the Field of Anticorrosion[J]. Journal of Petrochemical Universities, 2023, 36(3): 44-51.

图/表 4

图1 LDHs的结构示意图

Fig.1 Structure diagram of LDHs

图2 微胶囊的耐腐蚀机理及应用领域

Fig.2 Corrosion resistance mechanism and application fields of microcapsules

图3 MgAl?SDS?LDHs膜的腐蚀防护机理示意图

Fig.3 Schematic diagram of corrosion protection mechanism of MgAl?SDS?LDHs membrane

图4 Cu?BTA?MgAl?MoO42-?LDHs智能防腐涂料的合成路线

Fig.4 Synthetic route of Cu?BTA?MgAl?MoO42-?LDHs intelligent anticorrosive coatings

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