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  Self-Healing and Antifouling Multifunctional Coatings Based on pH and Sulfide Ion Sensitive Nanocontainers

Zheng, Z., Huang, X., Schenderlein, M., Borisova, D., Cao, R., Möhwald, H., et al. (2013). Self-Healing and Antifouling Multifunctional Coatings Based on pH and Sulfide Ion Sensitive Nanocontainers. Advanced Functional Materials, 23(26), 3307-3314. doi:10.1002/adfm.201203180.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-79CF-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0025-7537-9
Genre: Journal Article

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1935696.pdf (Publisher version), 5MB
 
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 Creators:
Zheng, Zhaoliang1, Author              
Huang, Xing, Author              
Schenderlein, Matthias2, Author              
Borisova, Dimitriya2, Author              
Cao, Rong, Author
Möhwald, Helmuth1, Author              
Shchukin, Dmitry G.2, Author              
Affiliations:
1Helmuth Möhwald, Grenzflächen, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863312              
2Dmitry Shchukin, Grenzflächen, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863309              

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Free keywords: anticorrosion;antifouling;feedback coatings;nanocontainers
 Abstract: Application of mesoporous silica nanoparticles (MSNs) as delivery tools for self-healing coatings is limited by spontaneous leakage and specifically responsive release of small molecular inhibitors. In this work, a pH/sulfide ion responsive release system based on MSNs using a Cu-BTA complex forms at the openings of the mesopores into which BTA (corrosion inhibitor) and benzalkonium chloride (biocide) are loaded. The spontaneous leakage of active species is completely avoided and premature release of the loaded composition was lowered to 0.02. The responsive release begins when the pH is lower than 5 or [S2-] is higher than 0.02 mM (about 0.6 ppm). The hybrid coating containing the responsive release system exhibits feedback self-healing property sensitive to lowering of pH and sulfide ion concentration and, at the same time, provides a high barrier level for a long time. Due to incorporation of biocide in the release system, the coating is also provided with antifouling properties.

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Language(s): eng - English
 Dates: 2012-10-302013-02-132013-07-12
 Publication Status: Published in print
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1002/adfm.201203180
 Degree: -

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Title: Advanced Functional Materials
  Other : Adv. Funct. Mater.
Source Genre: Journal
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Publ. Info: Weinheim, Fed. Rep. of Germany : Wiley-VCH Verlag GmbH
Pages: - Volume / Issue: 23 (26) Sequence Number: - Start / End Page: 3307 - 3314 Identifier: ISSN: 1616-301X
CoNE: https://pure.mpg.de/cone/journals/resource/954925596563