Preparation and properties of hydrophobic organic-inorganic silica hybrid films

Lanfang Yao; Guangming Wu; Zhaofeng Wu; Dian Qu; Guoqing Wang; Jun Shen; Jue Wang

doi:10.1117/12.607289

8 December 2004 Preparation and properties of hydrophobic organic-inorganic silica hybrid films

Lanfang Yao, Guangming Wu, Zhaofeng Wu, Dian Qu, Guoqing Wang, Jun Shen, Jue Wang

Proceedings Volume 5774, Fifth International Conference on Thin Film Physics and Applications; (2004) https://doi.org/10.1117/12.607289
Event: Fifth International Conference on Thin Film Physics and Applications, 2004, Shanghai, China

Abstract

Hydrophobic organic-inorganic silica hybrid films were prepared by means of a two-step acid-catalyzed method and sol-gel process using surfactant as template. Methyltriethoxysilane(MTES) and tetraethoxysilane(TEOS) were co-hydrolyzed in different molar ration and were used as precursors. Addition MTES in TEOS precursors produces a decrease of Si-OH and Si-O- surface content. The infrared spectra of the films thus obtained indicated that they become hydrophobic with the introduction of the methyl groups. Contact angle instrument was also used to supplement the result. Contact angle values for hydrophobic hybrid films are greater than 120° . The refractive indices and thickness of hydrophobic hybrid films are about 1.22-1.24 and about 270-300nm The Optical transmittance spectra and mechanical intensity measurement results showed that the films have good optical and mechanical properties.

Citation Download Citation

Lanfang Yao, Guangming Wu, Zhaofeng Wu, Dian Qu, Guoqing Wang, Jun Shen, and Jue Wang "Preparation and properties of hydrophobic organic-inorganic silica hybrid films", Proc. SPIE 5774, Fifth International Conference on Thin Film Physics and Applications, (8 December 2004); https://doi.org/10.1117/12.607289

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