| Summary: | 碩士 === 國立成功大學 === 化學工程學系 === 104 === In this study, the water/oil-repellent Slippery Liquid Infused Porous Surface (SLIPS) with low sliding angle of water (〈3∘) and oleic acid (〈8∘) was fabricated by infusing the lubricant(Perfluoropolyether, Solvay, Fomblin M03) onto the fluorinated SiO2 textured substrates. The substrates were fabricated in two different ways. One is spraying the silica particle on the silicone gel and then curing the gel to bind the particle and form the texture substrate. Another method is fabricating the silica fiber mat by electrospinning as porous substrate. The substrates were modified by grafting the fluorinated coupling agent(Trichloro(1H,1H,2H,2H-perfluorooctyl)Silane) on the surface of SiO2 substrates. The lubricant was infused onto the modified textured substrate and form the SLIPS.
The effect of the underlying substrates on their abilities to retain the lubricant under water flow(34cm/min) was investigated. By comparing the sliding angle of water droplet(10µl) on the washed SLIPS, the substrates with smaller surface roughness and more pores provides larger capillary force to entrap the lubricant, leading to better durability under water flow system.
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