A versatile approach towards multifunctional robust microcapsules with tunable, restorable, and solvent-proof superhydrophobicity for self-healing and self-cleaning coatings

Gang WU, Jinliang AN, Xiu Zhi TANG, Yong XIANG, Jinglei YANG*

*Corresponding author for this work

Research output: Journal PublicationsJournal Article (refereed)peer-review

143 Citations (Scopus)

Abstract

Numerous microencapsulation techniques have been developed to encase various chemicals, for which specific processing parameters are required to address the widely differing features of the encapsulated materials. Micro-encapsulation of reactive agents is a powerful technique that has been extensively applied to self-healing materials. However, the poor solvent compatibility and insufficient thermal stability of microcapsules continue to pose challenges for long-term storage, processing, and service in practical applications. Here, an easily modifiable and highly versatile method is reported for preparing various chemicals filled poly(urea-formaldehyde) microcapsules that exhibit superior tightness against solvents and heat and that possess widely tunable, repetitiously self-restorable, and solvent-proof superhydrophobicity. In addition, the low-cost fabrication of biomimetic multifunctional smart coatings is demonstrated for self-healing anticorrosion and selfcleaning antifouling applications by directly dispersing the superhydrophobic microcapsules into and onto a polymer matrix. The methodology presented in this study should inspire the development of multifunctional intelligent materials for applications in related fields.

Original languageEnglish
Pages (from-to)6751-6761
Number of pages11
JournalAdvanced Functional Materials
Volume24
Issue number43
Early online date22 Aug 2014
DOIs
Publication statusPublished - 19 Nov 2014
Externally publishedYes

Bibliographical note

This work was financially supported by the Ministry of Education of Singapore (Grant #: RG17/09) and National Research Foundation of Singapore (Grant #: NRF2011NRF-POC002–044).

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