Emerging Trends in Smart Self-Healing Coatings: A Focus on Micro/Nanocontainer Technologies for Enhanced Corrosion Protection

Author:

Sanyal Simpy123,Park SeonJu4ORCID,Chelliah Ramachandran35ORCID,Yeon Su-Jung35ORCID,Barathikannan Kaliyan35ORCID,Vijayalakshmi Selvakumar35,Jeong Ye-Jin3,Rubab Momna6,Oh Deog Hawn35ORCID

Affiliation:

1. J&L Tech, Ansan 15618, Republic of Korea

2. Saveetha School of Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS) University, Sriperumbudur 600124, India

3. Department of Food Science and Biotechnology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 24341, Republic of Korea

4. Metropolitan Seoul Center, Korea Basic Science Institute (KBSI), Seoul 03759, Republic of Korea

5. Future F Biotech Co., Ltd., Chuncheon 24341, Republic of Korea

6. Department of Food Engineering and Biotechnology, New Campus, University of Engineering and Technology, Lahore 54000, Pakistan

Abstract

Smart self-healing coatings offer a revolutionary approach to mitigating metal corrosion, a problem with significant economic and environmental impacts. Divided into intrinsic and extrinsic types, these coatings autonomously rectify the damage. Intrinsic variants utilize reversible bonds to achieve ongoing repair, while extrinsic ones incorporate micro/nanocontainers that activate upon environmental triggers to mend micro-cracks, their efficacy dictated by the encapsulated healing agents’ volume. This review dissects the rapidly evolving sector of stimuli-responsive self-healing coatings, emphasizing the progress in micro/nano container technology. It discusses the synthesis and encapsulation processes of different micro/nanocontainers and charts the transition from single to multistimulus-responsive systems, which enhances the coatings’ sensitivity and functionality. The addition of multifunctional traits such as self-reporting and anti-microbial actions further broadens their industrial applicability. The review provides a succinct overview of the field’s current state and future potential, envisioning a paradigm shift in corrosion protection through advanced smart coatings.

Funder

the fourth Brain Korea (BK) 21 Plus Project

Korean Government, Republic of Korea

Researchers Supporting

Korea Basic Science Institute

Ministry of Education, Science and Technology, Republic of Korea

Publisher

MDPI AG

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