Recent Advances in Light-responsive Multifunctional Self-healing Coatings

doi:10.11902/1005.4537.2025.026

Journal of Chinese Society for Corrosion and protection

2025, Vol. 45

Issue (6): 1493-1507 DOI: 10.11902/1005.4537.2025.026

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Recent Advances in Light-responsive Multifunctional Self-healing Coatings

LIU Jianyang, HAN Yang, YU Meiyan, WANG Wei(

)

School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China

Cite this article:

LIU Jianyang, HAN Yang, YU Meiyan, WANG Wei. Recent Advances in Light-responsive Multifunctional Self-healing Coatings. Journal of Chinese Society for Corrosion and protection, 2025, 45(6): 1493-1507.

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Abstract

Metal corrosion has caused significant losses to the national economy. Corrosion not only shortens the service life of industrial facilities but also poses potential threats to environmental safety. To address these challenges, light-responsive self-healing coatings, as a special functional smart material, have emerged. These coatings can self-repair under light irradiation, thereby restoring the integrity and other properties of the coating. Herein, the classification, mechanisms, and corrosion protection applications of multifunctional light-responsive self-healing coatings are reviewed, aiming to explore and address challenges in the field of corrosion protection, improve the safety and reliability of facilities, reduce maintenance frequency and costs, and provide new ideas and technical support for equipment protection in extreme environments. It discusses the latest domestic and international research achievements regarding the enhancement of corrosion resistance, anti-icing, and early warning performance of light-responsive self-healing coatings. It also analyzes in detail the influence of factors such as filler content, light wavelength, light intensity, and substrate type on the self-healing performance and corrosion resistance of the coatings. Finally, a series of optimization suggestions are proposed to address current issues such as high coating preparation costs and low photothermal conversion efficiency, and look forward to the broad application prospects of light-responsive self-healing coatings in corrosion protection of industrial equipment and pipelines, routine maintenance and fault prevention, adaptability to complex environments, and integration with new energy technologies.

Key words: corrosion protection self-healing coatings photothermal response multifunctional materials

Received: 17 January 2025 32134.14.1005.4537.2025.026

ZTFLH:

TB430.50

Fund: National Natural Science Foundation of China(42476210)

Corresponding Authors: WANG Wei, E-mail: wangwei8038@ouc.edu.cn

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	LIU Jianyang
	HAN Yang
	YU Meiyan
	WANG Wei

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https://www.jcscp.org/EN/10.11902/1005.4537.2025.026 OR https://www.jcscp.org/EN/Y2025/V45/I6/1493

Fig.1 Synthetic route of DSe-WSPs polymers containing dynamic diselenide bonds and UPy groups^[13] (a), and WPU-UxHy cured film (b)^[14]

Fig.2 Mechanism of disulfide bond repair in the self-healing proces^[15] (a), and idealized structure of polymer networks incorporating H-H and S-S bonds with the synergistic interaction of multiple dynamic bonds (b)^[16]

Fig.3 Schematic diagram for the preparation of (a) nanofibers with tannic acid (TA) and tung oil as the inner core and polyacrylonitrile as the outer shell^[23], (b) core-shell nanofibers with cellulose acetate shell and loaded oleic acid (OA) and alkyd varnish resin (AVR)^[24]

Fig.4 Schematic diagram of photothermal self-healing coatings classification

Fig.5 Schematic diagram of self-healing mechanism of photothermal response TiN-BTA@mSiO₂NPs/epoxy resin^[36] (a), passive protection and self-healing mechanism Fe₃O₄ MBT/epoxy resin coating^[37] (b), multi-functional self-healing material PVB-Cu@TA schematic diagram of preparation of core-shell nanofibers^[30] (c), cellulose nanofiber reinforced self-healing hydrogel (d)^[38]

Fig.6 Schematic diagram of self-repair mechanism of f-PDAPs coating^[11] (a), repair effect of DA reaction in MXene thin film stimulated epoxy coating^[46] (b), the reconstruction of dynamic disulfide bonds and reversible hydrogen bonds triggered by the photothermal effect of Co₉S₈@Bi₂S₃^[48] (c), near-infrared light stimulated self-healing process for metal coordination bond preparation of Zn²⁺ imidazole^[50] (d)

Fig.7 Synthesis route and schematic diagram of (a) self-healing coating based on double chain filler 1,4-benzoquinone oxime^[51], (b) mechanism diagram of self-healing coating based on host guest interaction^[52]

Table 1 Summary of photothermal self-healing coatings with different repair mechanisms

Fig.8 Schematic diagram of the trend of transfer resistance changes in the series of rGO@MS-BTA coating film layers^[53] (a) and communication scanning electrochemical scratch |Z| scan image^[54] (b)

Fig.9 Characterization of ice melting time of CeO₂ series coatings deposited^[55] (a), Bi₂S₃/Ti₃C₂T _x schematic diagram of ice melting test for photoresponsive self-healing coating (b)^[56]

Fig.10 Schematic diagram of (a) carrying crystal violet lactone to achieve warning function^[57], (b) actual warning situation of 1,10-phenanthroline^[58]

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