SUSTAINABLE HTYDROPHOBIC-OLEOPHOBIC HIYIBRID) NAN0COMIPOSITE COATINGS PREPARED BY SOL-GEL PROCESS

In this paper, we present the fabrication of strongly hydrophobic and oleophobic silica based organicinorganic hybrid nanocomposite coatings using sol-gel method. The sol-gel films were synthesized from 3-glycidoxypropyltrimethoxysilane (GPTMS) and tetraethylorthosilicate (TEOS) precursors, and addition of surface modifiers. In order to investigate the effective factors on the properties of organically modified silicates films (Ormosils), different coatings with different organic were developed.The characterization results showed that these crack -free coatings had smooth, low surface energy and high chemical durability in solution of high and low pH. The water contact angel (WCA) of films was measures about 105 and for mineral oil 52.

کلیدواژه ها:

Sol-gel ، hydrophobic-oleophobic fuctionality ، contact angel ، inorganic substrates