Three different types of diatomaceous earth (DE) particles have been treated with 3-(heptafluoroisopropoxy)propyltrimethoxysilane (HFIP-TMS) and coatings made with low molecular mass polystyrene. Differences in the untreated particles were found and evidence from contact angles, electron microscopy, pore size distribution and surface area analysis (via Brunner-Emmett-Teller, BET, methods) were correlated with the behavior of the coatings using the different particles. The different particles required different amounts of fluorosilane to achieve superhydrophobicity in the coatings.

Role of particle structure in superhydrophobicity of treated-diatomaceous earth coatings

254th National Meeting (2017)

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