层状双氢氧化物基自修复涂层在海洋环境中的应用进展

曹明媚, 刘书佩, 张育新

doi:10.16577/j.issn.1001-1560.2024.0171

材料保护 >

2024 , Vol. 57 >Issue 8: 1 - 13

DOI: https://doi.org/10.16577/j.issn.1001-1560.2024.0171

海洋环境材料的腐蚀与防护专栏

层状双氢氧化物基自修复涂层在海洋环境中的应用进展

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(重庆大学材料科学与工程学院，重庆 400044)

张育新(1978-)，博士，教授，主要研究方向为腐蚀与防护，电话:15823956795，E-mail:zhangyuxin＠cqu.edu.cn

收稿日期: 2023-12-20

修回日期: 2024-02-05

录用日期: 2024-02-15

网络出版日期: 2024-09-23

基金资助

中央高校基础研究基金项目(2020CDJXZ001)

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Application Progress of Layered Double Hydroxides-Based Self-Healing Coatings in Marine Environment

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(College of Materials Science and Engineering， Chongqing University， Chongqing 400044， China)

ZHANG Yuxin， Ph.D.， Professor， Research Focus: Corrosion and Protection.Tel.: 15823956795， E-mail:zhangyuxin＠cqu.edu.cn

Received date: 2023-12-20

Revised date: 2024-02-05

Accepted date: 2024-02-15

Online published: 2024-09-23

Supported by

Fundamental Research Funds for the Central Universities(2020CDJXZ001)

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摘要

恶劣的海洋环境使防腐成为海洋工程的技术难题，为延长海洋防腐涂层的使用寿命，开发具有“主动愈合”自修复功能的智能防腐涂层成为当前的研究热点。层状双氢氧化物(LDHs)因其独特的结构和阴离子交换性能，是理想的缓蚀剂纳米容器和氯离子固化剂，展现了优异的环境响应自修复防腐性能，加之成熟的施工技术，在海洋防腐工程中有广泛的应用。综述了LDHs 材料的结构性质、合成方法以及LDHs 基涂层的制备，总结了近年来LDHs 作为有机涂层中的添加剂或预处理转化膜在海洋环境中针对金属(镁合金、铝合金和钢铁)防护和混凝土防护等领域的应用情况。鉴于涂层实际服役过程中遇到的复杂问题，提出LDHs 材料研究中存在的不足和挑战，并展望了在海洋环境中LDHs 材料未来的研究趋势。

关键词： 层状双氢氧化物基涂层; 海洋腐蚀; 自修复; 应用

本文引用格式

曹明媚, 刘书佩, 张育新 . 层状双氢氧化物基自修复涂层在海洋环境中的应用进展[J]. 材料保护, 2024 , 57(8) : 1 -13 . DOI: 10.16577/j.issn.1001-1560.2024.0171

Abstract

The harsh marine environment makes anti-corrosion a technical problem in marine engineering.In order to improve the service life of marine anticorrosive coatings， the development of intelligent anticorrosive coatings with "active healing" self-repairing function has become a research hotspot.Layered double hydroxides (LDHs) are ideal corrosion inhibitor nanocontainers and chloride ion hardeners due to their unique structure and anion exchange properties.With excellent environmentally responsive self-healing corrosion resistance and mature construction technology， LDHs have been widely used in marine anti-corrosion engineering.In this paper， the structural properties and synthesis methods of LDHs materials and the preparation of LDHs based coatings were reviewed.The applications of LDHs as additive in organic coatings and pre-treatment conversion films in marine environment for metal protection (magnesium alloy， aluminum alloy and steel) and concrete protection in recent years were summarized.In view of the complex problems encountered in the actual service of the coating，the shortcomings and challenges in the research of LDHs materials were put forward， and the future research trend of LDHs materials in the marine environment was forecasted.

Key words： layered double hydroxides-based coatings; marine corrosion; self-repairing; application

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