Issue 22, 2019, Issue in Progress

Reactive silica nanoparticles turn epoxy coating from hydrophilic to super-robust superhydrophobic

Abstract

Superhydrophobic organic–inorganic hybrid nanocomposite coatings have received much attention because they possess the advantages of both inorganic and organic materials. Nevertheless, it is difficult to achieve strong bonding of inorganic nanoparticles to the polymer matrix while maintaining a sufficiently rough structure to impart superhydrophobicity. In this study, we fabricated silica nanoparticles with surface reactive groups that can further react with the epoxy resin. Thus, the hydrophobic silica nanoparticles were stably anchored and stabilized in the cured resin matrix while forming nanometer-scale roughness structures. The obtained silica-decorated epoxy resin coating shows great durability and water-repellency after mechanical abrasions and has superior adhesion to the substrate.

Graphical abstract: Reactive silica nanoparticles turn epoxy coating from hydrophilic to super-robust superhydrophobic

Supplementary files

Article information

Article type
Paper
Submitted
06 Dec 2018
Accepted
19 Jan 2019
First published
24 Apr 2019
This article is Open Access
Creative Commons BY license

RSC Adv., 2019,9, 12547-12554

Reactive silica nanoparticles turn epoxy coating from hydrophilic to super-robust superhydrophobic

D. Zhi, H. Wang, D. Jiang, I. P. Parkin and X. Zhang, RSC Adv., 2019, 9, 12547 DOI: 10.1039/C8RA10046B

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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