Recyclable and Self-Repairable Epoxy Anticorrosion Coatings with Curing-Controlled Thermoplasticity
Source abstract
Abstract
Affordable self-repairing coatings with robust interfacial adhesion are of great interest in anticorrosion applications. Epoxy (EP) coating is the most widely used commercial anticorrosion coating but suffers from failure once damaged because it cannot be repaired facilely as a thermosetting material. Herein, we develop a thermoreversible epoxy by regulating the curing program within a partial curing window of a commercial epoxy–anhydride system. The as-prepared coatings experience a reversible solid–liquid transition during the heating–cooling cycle. The curing windows for thermoplastic and thermosetting epoxy are investigated as well as the underlying curing mechanism. The photothermal coatings were fabricated by embedding carbon nanoparticles (CNPs) within the epoxy coating, enabling in situ repairing by the near-infrared laser irradiation. Such coatings show moderate surface adhesion to metal surfaces, impressive recycling and repairing abilities, and competitive corrosion resistance.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Polymer composites and self-healing · Corrosion Behavior and Inhibition · Surface Modification and Superhydrophobicity
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
School of Materials Science and Engineering, Sun Yat-sen University, 510275 Guangzhou, China
Funding
Ministry of Education of the People's Republic of China · National Natural Science Foundation of China · Guangdong International Science and Technology Cooperation Program · Guangzhou Scientific and Technological Planning Project
References (66)
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