Development of superhydrophobic surface with green hollow nanosilica-octadecyltrichlorosilane
발표자
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초록
내용
In this study, based on water repellent synthesized through the stoichiometric silanization reaction of octadecyltrichlorosilane (OTS) and water (H2O), hollow silica nanoparticles were formulated to prepare sustainable fluorine-free coating agents. Non-fluorine-based coating compounds were manufactured with OTS and different weight ratios of hollow SiO2 nanoparticles (0.5, 1.0, 1.5, 2.0 wt %) to improve roughness of morphologies by forming hierarchical nanostructures. Notably, hydrophobicity of textiles with 2.0 wt% hollow SiO2 showed a contact angle up to 158.5°. It was confirmed that hydrophobicity increased in according to the increased addition of hollow SiO2, so that it could be adjusted according to the content of hollow SiO2. Furthermore, surface roughness was increased on the sample with increased addition of hollow SiO2. The developed hollow silica-based OTS coating is a green method that is non-toxic to the humans and environments.