Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/150426
Title: Robust multifunctional microcapsules with antibacterial and anticorrosion features
Authors: Chong, Yong Bing
Sun, Dawei
Zhang, Xin
Yue, Chee Yoon
Yang, Jinglei
Keywords: Engineering::Mechanical engineering
Issue Date: 2019
Source: Chong, Y. B., Sun, D., Zhang, X., Yue, C. Y. & Yang, J. (2019). Robust multifunctional microcapsules with antibacterial and anticorrosion features. Chemical Engineering Journal, 372, 496-508. https://dx.doi.org/10.1016/j.cej.2019.04.139
Journal: Chemical Engineering Journal
Abstract: Corrosion and biofouling are two common unsolved problems in the marine industry, urging the need of innovative solutions to tackle both problems simultaneously. Herein, the fabrication of multifunctional microcapsules containing 8-hydroxyquinoline (8-HQ)as the corrosion inhibitors and clove oil as the natural antimicrobial compound is described to resolve both corrosion and biofouling problems simultaneously. Microcapsules containing 8-HQ and clove oil, featuring good mechanical properties, anticorrosion, and antibacterial properties, were successfully synthesized through in-situ polymerization of melamine-formaldehyde polymer. The fabricated microcapsules show antibacterial properties against Escherichia coli, Vibrio coralliilyticus and E. aestuarii, as revealed from the standard ASTM E2315 time-kill test. Multifunctional coatings with both antibacterial and anticorrosion features were fabricated by incorporating the fabricated microcapsules both onto and into the epoxy coatings. According to the zone inhibition test, the microcapsules-based multifunctional coating possesses antibacterial properties against the seawater bacteria. Manually scratched microcapsules-based multifunctional coatings possess anticorrosion properties, due to the formation of corrosion inhibition layer resulted from the reaction between the released 8-HQ compound and the mild steel substrate. Additionally, after 30 days of immersion in the salt water, the microcapsules-based coatings still possess anticorrosion properties by forming corrosion inhibition layer at the scratched region.
URI: https://hdl.handle.net/10356/150426
ISSN: 1385-8947
DOI: 10.1016/j.cej.2019.04.139
Rights: © 2019 Elsevier B.V. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles
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