| dc.description.abstract | The influence of oil pollution makes oil-water separation technology pay attention, and this technology can be applied in the thin film process. Common thin film processes used in oil-water separation include electrospinning method, plasma treatment, templates method, self-assembly method and Sol-Gel method. The sol-gel method has the advantages of simple process, low cost, low pollution, and high stability. Therefore, in this study, nanometer-scale SiO2 particles were produced by the sol-gel method, and the chemical properties were changed by surface modification, which was further applied to the experiment of oil-water separation.
After preparing M-SiO2-OH-SSM, in order to prove the physical and chemical characteristics of the surface. Measuring FTIR, SEM and WCA of the stainless steel mesh (SSM) at different time points. Furthermore, analyze the change of surface structure and particle size water contact angle. Then, by adjusting the temperature and time parameters of the process, we can produce the highest WCA which can maintain stable and efficient separation efficiency in many durability tests. Finally, a more in-depth emulsion test is carried out. Under a certain concentration, stable and complete emulsion separation can be achieved.
In this study, SiO2 nanoparticle synthesized in the laboratory were used as materials, and they were prepared on SSM after modification. The product M-SiO2-OH-SSM has super-hydrophobic characteristics, high efficiency and stable separation efficiency, and excellent mechanical properties which can be used in emulsion separation.
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