| LI Wen-tao,ZHOU Sheng-guo,ZHAO Wen-jie.Research Progress of Layered Double Hydroxide Corrosion Resistant Materials[J],48(1):241-248 |
| Research Progress of Layered Double Hydroxide Corrosion Resistant Materials |
| Received:July 12, 2018 Revised:January 20, 2019 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2019.01.031 |
| KeyWord:layered double hydroxides corrosion inhibitors interlayer anion exchangeability restructuring of structure an-ti-corrosion performance corrosion resistance mechanism |
| Author | Institution |
| LI Wen-tao |
1. School of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou , China |
| ZHOU Sheng-guo |
1. School of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou , China |
| ZHAO Wen-jie |
2. Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Key Laboratory of Marine Materials and Related Technologies, Chinese Academy of Sciences, Ningbo Institute of Materials Technology and Engineering of Chinese Academy of Sciences, Ningbo , China |
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| Abstract: |
| Due to excellent physicochemical properties such as the anion exchangeability and the adjustability of structure and composition, layered double hydroxides (LDHs) are widely applied in the corrosion protection of metal materials as carriers for corrosion inhibitors. The most common preparation methods and corresponding advantages and disadvantages of LDHs were summarized, including coprecipitation method, hydrothermal synthesis method, in situ growth method, steam coating method and calcination reduction method, and the interlayer anion exchange system with LDHs film and LDHs as a filler to protect the metal substrate from the corrosion resistance mechanism of LDHs materials was also studied and the compound synergistic effect of rare earth ions, carboxylate inhibitors, graphene and its derivatives, epoxy zinc-rich coating and LDHs could also the corrosion re-sistance mechanism, Surface treatment and chemical modification were carried out to prepare a hydrophobic surface to enhance corrosion resistance, the problems in the preparation and working process of LDHs materials were analyzed: the preparation tech-nology of LDHs was not perfect, the bonding strength between LDHs films and metal substrates was weak, the mechanical prop-erties of LDHs films were poor, and the LDHs and organic polymers were difficult to be uniformly mixed. Through the above summary analysis, the development direction of LDHs materials in the field of corrosion resistance is prospected. |
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