The preparation of hydrophobic hybrid film coatings from siloxane-modified polyacrylate associated with nano-fumed silica and organo-modified clay

Superhydrophobic hybrid film coatings were developed by applying siloxane-modified polyacrylate in conjunction with organo-modified clay (OMC-20A) and hydrophobic-fumed silica (FS-H15) to glass and cement boards using a dipping process. The study investigated the hydrophobic properties, surface morphology, surface energy, and surface roughness of these hybrid film coatings (HBFCs). The findings highlighted a direct relationship between hydrophobicity and surface roughness, with the most remarkable results achieved when employing 10 parts per hundred rubber (phr) of OMC-20A and 35 phr of FS-H15 in the hybrid coatings, coupled with a four-dip process.

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