Fabrication of superhydrophobic composite coating based on fluorosilicone resin and silica nanoparticles

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Abstract

Composite superhydrophobic coating built with film former and filler is attracting much attention for its facile and convenient fabrication, but significant limitations and disadvantages still remain. In this paper, a composite superhydrophobic coating is introduced which can be cured at room temperature and made by dispersing modified silica nanoparticles with 1H, 1H, 2H, 2Hperfluorooctyltriethoxysilane in fluorosilicone resin. Silica content and dispersion time showed obvious influences on the morphology and topography of composite coating by reuniting dispersed nanoparticles to form peaks on the surface. Excessively large distances between these peaks would decrease water contact angle value. Increasing slope of peaks, appropriate distance between peaks and decreasing diameter size of peaks would diminish sliding angle value. Formation mechanism of the composite coating based on fluorosilicone resin and modified nanoparticles was explained using interpenetrating polymer model.

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Wang, X., Li, X., Lei, Q., Wu, Y., & Li, W. (2018). Fabrication of superhydrophobic composite coating based on fluorosilicone resin and silica nanoparticles. Royal Society Open Science, 5(7). https://doi.org/10.1098/rsos.180598

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