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This research is to study how polyester fabrics were treated with hydrophobic agent to embed with lotus effect. The study adopted Tetraethoxy Silane (TEOS) as raw material. It was processed by a series of hydrolysis, condensation, and polymerization reactions to form SiO2particulate carriers. Afterwards, it was reacted with N-octadecyltrichloxysilane (ODS) under the control of hydrolysis-condensation polymerization to form long chain alkyl polymer. The polymer compound was analyzed by FTIR, EDS (Energy Dispersive Spectrometer), SEM (Scanning Electron Microscope) to verify the surface of SiO2 particulate carriers grafted with long chain structure of alkyl group. The long chain alkyl structure compounds were formulated with various concentrations of hydrophobic agent as the superhydrophobic agents of this study. To evaluate the performance of water repellent between the formulated superhydrophobic and commercial hydrophobic agents, the polyester fabrics were treated with the above agents separately. The results showed that the water contact angle of polyester fabrics treated with the formulated superhydrophobic agent was greater than 148° in comparison with those who treated with the commercial one was around 140° before washing;. For the washing fastness, the water contact angle for the treatment of the formulated superhydrophobic agent was still greater than 145°after 15 times of washing. [ABSTRACT FROM AUTHOR]

The study adopted Tetraethoxy Silane (TEOS) as raw material. It was processed by a series of hydrolysis, condensation, and polymerization reactions to form SiO2 particulate carriers. Afterwards, it was reacted with N-octadecyltrichloxysilane (ODS) under the control of hydrolysis-condensation polymerization to form long chain alkyl polymer. The polymer compound was analyzed by FTIR, EDS (Energy Dispersive Spectrometer), SEM (Scanning Electron Microscope,) to verify the surface of SiO2 particulate carriers grafted with long chain structure of alkyl group. The long chain alkyl structure compounds were formulated with various concentrations of hydrophobic agent as the superhydrophobic agents of this study. We evaluated the performance of disposing SiO2 and the analysis of physical property. And also verified the hydrolytic condensation of SiO2 and ODS. The results showed that after hydrolytic condensation, SiO2 was added three absorbed peak. And the thermal decomposition rate of SiO2 compounds improved the stability. [ABSTRACT FROM AUTHOR]