| In the past years, super-hydrophobic surface with the water contact angle larger than 150°,has received a lot of scientific attention, due to their important applications ranging from self-cleaning materials to microfluid devices and other biomaterials. For example, super-hydrophobic material can be applied to the ship's shell and fuel reserve tank. Super-hydrophobic material can give rise to anti-corrosion, friction reduction, and pollution prevention and so on. Nowadays, a variety of techniques have been explored to prepare such marvelous materials. In this thesis, two types of super-hydrophobic surfacing materials, metallic aluminum foils, polypropylene sheet, have been successfully fabricated.(1) Hierarchically structured micro/nano architecture was directly fabricated on aluminum foils via a one-step solution-immersion process. The resultant surface morphology was characterized by means of scanning electron microscope (SEM) and water contact angle measurements. The results show that, the rough surface exhibits super-hydrophobicity with water contact angle more than 158o and sliding angle less than 5o without any further hydrophobic modification. FTIR spectra demonstrate that the aggregates on the aluminum foils are a chemical composition of aluminum myristate. The mixture solvents, ethanol and water, for myristic acid play a vital role in constructing such a hierarchically structured cluster of myristic compounds.(2) The super-hydrophobic polypropylene surface with nano-scale arrays was obtained by firstly hot pressing with AAO(Anodic oxidation alumina) template and then removal of the template with alkaline dissolution. The water contact angle measurement results show that, the nano-array polypropylene surface gives a water contact angle as high as 152.0°in comparison with the angle of plain polypropylene surface 105°. Therefore, it is the nanoarray structure on the film surface that possesses super-hydrophobicity.
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