Preparation Hydrophobic Fabric Coated by TiO2 and Hexadecyltrimethoxysilane

12th Congress of Indonesian Soc. for Biochemistry and Molecular Biology in Conjunction With The 2nd Int. Conf. "Collaboration Seminar of Chemistry and Industry

生物科学;化学

Handajani, U.S.^1 ; Widati, A.A.^1 ; Yusbainika, I.N.^1

Departement of Chemistry, Science and Technology Faculty, Universitas Airlangga, Surabaya, Indonesia^1

关键词: Deposition time;    Layer by layer;    Optimum concentration;    Optimum conditions;    Optimum deposition;    Separation efficiency;    Trimethoxysilane;    Water contact angle;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/217/1/012011/pdf
DOI  :  10.1088/1755-1315/217/1/012011

学科分类：生物科学（综合）

来源: IOP

【 摘 要 】

In this research, hydrophobic fabric was prepared using TiO2 and hexadecyl trimethoxysilane (HDTMS). The method of coating was layer by layer. First layer was coated with TiO2 to increase the roughness and the second layer was coated with HDTMS to increase the hydrophobicity. The fabrics that has been coated TiO2 has a water contact angle about 54.55°, while the fabric that has been coated HDTMS has a water contact angle about 109.79°. In this research, we studied the influence of deposition time and composition of TiO2 and HDTMS. The result showed the optimum deposition time of TiO2 about 60 and 30 min, the optimum concentration of TiO2 and HDTMS about 0.4 and 0.1 M. This optimum condition exposed the water contact angle 135.93°. Characterization of the hydrophobic fabrics was done using IR-ATR showed the wave number of 667.2 cm-1 and 893.1 cm-1 were Ti-O-Ti and Ti-O-Si bond. The result of separation efficiency hydrophobic fabric of the mixture (cooking oil-water, toluene-water, chloroform-water, and hexane-water) were 93.30%, 84.61%, 61.54%, and 23.07%. The hydrophobic fabric was stable towards ambient temperature till 6 weeks, but unfortunately, it was not stable towards detergent.