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利用磁控溅射法在聚丙烯(PP)纤维膜上溅射SiO2纳米粒子,制备超疏水超亲油纤维膜,用于油水分离领域中。在PP纤维膜上溅射SiO2纳米粒子增加表面粗糙度,降低表面能达到超疏水的效果。通过调节溅射功率,改变疏水效果,当溅射功率为100W时,纤维膜的疏水性能最好,对水的接触角高达162.8±2.1°,对油的接触角为0°。更重要的是,PP-SiO2纤维膜在油水分离过程中仅仅依靠重力驱动,能够使油和水快速分离并且重复使用10次之后依然保持超疏水性,分离效率保持在90%左右,这将在工业油污和海洋溢油处理中,提供了新的材料。
Using magnetron sputtering method to sputter SiO2 nanoparticles on polypropylene (PP) fiber membrane to prepare superhydrophobic super-lipophilic fiber membrane for the oil-water separation field. Sputtering SiO2 nanoparticles on PP fiber membrane increases the surface roughness and reduces the surface energy to achieve superhydrophobicity. By adjusting the sputtering power and changing the hydrophobic effect, the fiber membrane has the best hydrophobic property when the sputtering power is 100W, the contact angle to water is up to 162.8 ± 2.1 ° and the contact angle to oil is 0 °. More importantly, PP-SiO2 fiber membranes rely solely on gravity to drive oil-water separations, enabling rapid separation of oil and water and maintaining superhydrophobicity after 10 cycles of reuse, with separation efficiencies of around 90% Industrial oils and marine oil spills have provided new materials.