Activation and production of silanized surfaces
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Abstract
In this research a methodology for activation and production of silanized surfaces of hydrophobic nature was standardized. The methodology was performed by activation of OH groups at glass surfaces by removing inorganic matter with ethanol and organic matter by oxidation reactions in a UV / ozone chamber with two different wavelengths (253.7 nm and 180 nm). The silanization was performed by exposition of the activated surfaces to (7-octen-1-yl) trimethoxysilane / n-heptane for different times. The hydrophobicity obtained at silanized surfaces was determined by measuring the contact angle (q). Because the data obtained it was determined that the exposure time of the reagent influences the formation of hydrophobic surfaces. After 7 h of exposition and cleaning of the surfaces, contact angles of 92.417° ± 0.631 were obtained.
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