Development of a photothermal self-healing superhydrophobic anticorrosion coating with anti-icing and de-icing properties by MXene-assisted stearic acid-modified ZIF-8

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2025-07-05 DOI:10.1016/j.colsurfa.2025.137669

Jiao Chen , Zongxue Yu , Junlei Tang , Pengao Yu , Chao Peng , Huiyuan Liu , Jiaxin Jiang

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引用次数: 0

Abstract

Anti-corrosion coatings are vulnerable to physical damage and chemical corrosion during use, leading to rapid loss of protective properties. In order to improve the durability and reliability of corrosion-resistant coatings, self-healing properties are widely incorporated into anti-corrosion coatings. In this study, a double-layer composite coating with photo-thermal self-healing superhydrophobic anti-corrosion was prepared, with the bottom coating with photo-thermal self-healing properties obtained from MXene embedded in shape memory polymer (SMP), and the superhydrophobic top coating with photo-thermal effect formed by MZSA grafted with stearic acid-modified ZIF-8 to MXene. It has been shown that the composite coating has good superhydrophobicity, with a water contact angle of up to 158.7° and a sliding angle of down to 3.7°. In addition, the coating has excellent corrosion resistance, and after 40 days of immersion in 3.5 wt% NaCl solution, the anti-corrosion efficiency of MX₁/SMP-MZSA can still reach 99.94 %, and the low-frequency impedance value can still reach 9.86 × 10⁸ Ω·cm², which is two orders of magnitude higher than that of pure epoxy coating. At the same time, the coating has excellent photothermal self-healing properties and anti-icing and de-icing properties. For the related work that only studied the photothermal self-healing properties and anti-icing and deicing properties of photothermal superhydrophobic coatings, this work further studied the application of photothermal superhydrophobic coatings in the field of anti-corrosion. this study provides a new idea for the self-repair of superhydrophobic anti-corrosion coatings.

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mxene辅助硬脂酸修饰ZIF-8抗冰除冰光热自愈超疏水防腐涂层的研制

防腐涂料在使用过程中容易受到物理损伤和化学腐蚀，导致防护性能迅速丧失。为了提高防腐涂料的耐久性和可靠性，自愈性能被广泛地应用于防腐涂料中。本研究制备了具有光热自愈超疏水防腐的双层复合涂层，其中MXene嵌入形状记忆聚合物（SMP）中获得具有光热自愈性能的底层涂层，MZSA与硬脂酸修饰的ZIF-8接枝MXene形成具有光热效应的超疏水涂层。结果表明，该复合涂层具有良好的超疏水性，其水接触角可达158.7°，滑动角可达3.7°。此外，该涂层具有优异的耐腐蚀性，在3.5 wt% NaCl溶液中浸泡40天后，MX1/SMP-MZSA的防腐效率仍可达到99.94 %，低频阻抗值仍可达到9.86 × 108 Ω·cm2，比纯环氧涂层提高了两个数量级。同时，涂层具有优异的光热自愈性能和抗冰、除冰性能。针对相关工作仅研究光热超疏水涂层的光热自愈性能和防冰除冰性能，本工作进一步研究了光热超疏水涂层在防腐领域的应用。本研究为超疏水防腐涂层的自修复提供了新的思路。

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.