Abstract
Developed energetic composites (e.g. aluminum/zinc (II) oxide) with superhydrophobicity and outstanding thermostability destine to be an attractive new generation of energy materials with wide applications. In this work, the superhydrophobic aluminum/zinc (II) oxide coatings (SAZECs) have been designed by electrophoretic deposition (EPD) of components co-scattered in optimal stable suspension of isopropyl alcohol, acetylacetone, and polyethyleneimine as the effect additive, followed by surface energy reducing treatment. Combining energy dispersive X-ray, field emission scanning electron microcopy and X-ray diffraction, we characterized target coatings with relative even distribution and high purity. Wettability analysis results indicated that the SAZECs possessed both high water contact angle (CA) of ~168° and severe exothermic property with heat-release up to 1.88 × 103 J/g. Moreover, product showed excellent water-proof stability and thermostability after twelve months exposure experiments. This work demonstrates fundamental insights for the superhydrophobic energetic materials enabled by rationally designing electrophoretic co-assembly of charged particles, thus possessing universal significance in improving MICs life time while offering a facile reference to design other self-protected MICs for real industrial application.
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