Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 13, Issue 48, Pages 57880-57892Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c16052
Keywords
self-healing; active anticorrosion; synergistic anticorrosion performance; nanofiber; corrosion inhibitor
Funding
- National Science Foundation of China [52075218, 51775232, 51803212]
- Science and Technology Development Plan Project of Jilin Province [20190201155JC, 20190201278JC]
- Young and Middleaged Technology Innovation Leading Talents and Team Projects of Science and Technology Development Plan of Jilin Province [20200301013RQ]
- Natural Science Foundation of Guangxi Province [2020GXNSFAA238041]
- Interdisciplinary Integration and Innovation Project of Jilin University for Young Scholar
- Preresearch Foundation of Equipment Key Laboratory [JCKY61420052005]
- Scientific Research Foundation of the Education Department of Jilin Province [JJKH20190145KJ]
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The study introduced a nanofiber-supported anticorrosion coating with synergistic protection of self-healing and active corrosion inhibition. Utilizing an electrospinning combined coating technique, the coating offers instant corrosion protection and durable anticorrosion performance.
Synergetic self-healing anticorrosion behaviors, by forming a self-assembly protective layer and repairing coating passive barrier, exhibit great potential in handling the notorious metal corrosion phenomenon. Herein, we developed a nanofiber-supported anticorrosion coating with synergistic protection effects of both self-healing and active corrosion inhibition, via a facile electrospinning combined coating technique. Polycaprolactone (PCL) nanofiber integrated with 2-mecapobenzothiazoleloaded halloysite nanotubes (HNTs-MBT) is directly deposited on the surface of metal substrate, forming an interconnected fiber network framework. The encapsulated corrosion inhibitor MBT can be released by a pH-triggered manner to realize instant corrosion protections. Additionally, coating defects could be repeatedly repaired by continuous polymer fiber upon heat treatment and the anticorrosion efficiency effectively remained, even after three cycles of damage-healing. Moreover, the repaired coating also exhibited durable anticorrosion performance, mainly attributed to the synergetic effects of both thermal-triggered bulk healing and active corrosion inhibition. This type of dual-functional coating provides efficient anticorrosive performances and may show great promise in long-term corrosion protection.
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