A superhydrophobic paper with excellent robustness was fabricated by roll coating with modified nano-TiO₂. First, nano-TiO₂ particles were hydrophobically modified by γ-aminopropyltriethoxysilane and 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane (POTS). Then the paper coating composed of modified nano-TiO₂ particles as pigments and epoxy resin (EP) as adhesives was coated on a paper surface to create the desired surface morphology and surface energy. Compared with the uncoated filter paper, the prepared paper showed an improved rough surface morphology owing to the uniform layer of TiO₂ microclusters deposited on the fiber network. The superhydrophobic paper exhibited water contact angles (WCA) about 153° ± 1.5°, and water sliding angles (WSA) about 3.5° ± 0.5°, low surface adhesion and excellent bounce ability. The superhydrophobic paper can withstand a variety of wear and tear, such as tape stripping and knife scraping. The as-prepared superhydrophobic paper showed mechanical durability even after 20 wear cycles with sandpaper,thus sustaining excellent superhydrophobicity on the filter paper surface. Moreover, it remains fully functional even in environments with high concentrations of acid and alkali for 96 h. The superhydrophobicity was not affected after storage for 6 months in a natural environment. It was confirmed that the superhydrophobic paper surface exhibited excellent chemical stability, long-term stability and self-cleaning properties. The entire production process was operated under normal environment, without complex equipment; and, as such, has the possibility for large-scale production and application in industry.

通过辊涂改性纳米TiO ₂制备了具有优异鲁棒性的超疏水纸。首先，纳米TiO ₂颗粒通过γ-氨基丙基三乙氧基硅烷和1H，1H，2H，2H-全氟辛基三乙氧基硅烷（POTS）进行了疏水改性。然后，将由改性纳米TiO ₂颗粒作为颜料和环氧树脂（EP）作为粘合剂组成的纸涂层涂覆在纸表面上，以产生所需的表面形态和表面能。与未涂布的滤纸相比，制得的纸由于均匀的TiO ₂层而显示出改善的粗糙表面形态微簇沉积在光纤网络上。该超疏水性纸表现出约153°±1.5°的水接触角（WCA）和约3.5°±0.5°的水滑移角（WSA），低的表面粘附性和优异的反弹能力。超疏水纸可以承受各种磨损，例如胶带剥离和刮刀刮擦。所制备的超疏水性纸即使在用砂纸磨耗20次之后仍显示出机械耐久性，因此在滤纸表面保持了优异的超疏水性。此外，即使在酸和碱浓度较高的环境中持续96小时，它仍可发挥全部功能。在自然环境中存放6个月后，超疏水性不受影响。可以确认的是，超疏水纸的表面表现出优异的化学稳定性，长期稳定性和自清洁性能。整个生产过程在正常环境下进行，没有复杂的设备；因此，有可能在工业中大规模生产和应用。