Transparent nanocomposite films with multiple functionalities, such as durable antifogging, dynamic oleophobic, self-healing properties, were successfully prepared by a simple spin- or spray-coating method using aqueous solutions of poly(vinylpyrrolidone) (PVP) and aminopropyl-functionalized nanoclay (AMP-clay) platelets. In this study, anionic/waterborne perfluorooctanesulfonic acid potassium salt (PFOS) was premixed with the aqueous PVP solution to achieve a homogeneous dispersion of PFOS. Due to the addition of PFOS, the resulting nanocomposite film surfaces displayed statically hydrophobic (static water contact angle over 90°) and dynamically oleophobic (5 μL of oil droplets could slide off of the surface at low sliding/substrate tilt angles of less than 10°) behaviors. In spite of our nanocomposite film surface exhibiting a statically hydrophobic nature, the antifogging properties remained unchanged even after being left under high-humidity conditions (over 80% relative humidity) for 3 days. Thanks to both exceptional water-absorbing properties of PVP/AMP-clay matrices and good mobility of PFOS driven by moisture, our oil-repellent nanocomposite films could be repeatedly self-healed even after both severe physical (cutting, scratching, or falling sand abrasion) and chemical (vacuum UV oxidation) damages. Large-scale fabrication of this multifunctional nanocomposite film (30 cm × 30 cm) could also be successfully demonstrated by a spray-coating method based on in situ gel formation.

中文翻译：

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掺氟表面活性剂的透明纳米复合薄膜的大规模形成，显示出持久的防雾，拒油和自修复特性。

使用聚乙烯吡咯烷酮（PVP）和氨丙基官能化纳米粘土（PVP）的水溶液通过简单的旋涂或喷涂方法成功制备了具有多种功能的透明纳米复合膜，这些膜具有持久的防雾性，动态的疏油性，自修复性AMP-粘土）血小板。在这项研究中，将阴离子/水性全氟辛烷磺酸钾盐（PFOS）与PVP水溶液预先混合，以实现PFOS的均匀分散。由于添加了PFOS，所得的纳米复合膜表面显示出静态疏水性（静态水接触角超过90°）和动态疏油性（5μL油滴在小于10的低滑动/基材倾斜角下可从表面滑落） °）行为。尽管我们的纳米复合膜表面表现出静电疏水性，但即使在高湿度条件下（相对湿度超过80％）放置3天后，其防雾性能仍保持不变。由于PVP / AMP粘土基体具有出色的吸水性能，并且受水分驱动的PFOS具有良好的迁移性，即使在经过严格的物理（切割，刮擦或掉落沙地磨损）后，我们的拒油纳米复合膜也可以反复自我修复。 ）和化学（真空紫外线氧化）损坏。这种多功能纳米复合膜（30 cm×30 cm）的大规模生产也可以通过基于 由于PVP / AMP粘土基体具有出色的吸水性能，并且受水分驱动的PFOS具有良好的迁移性，即使在经过严格的物理（切割，刮擦或掉落沙地磨损）后，我们的拒油纳米复合膜也可以反复自我修复。 ）和化学（真空紫外线氧化）损坏。这种多功能纳米复合膜（30 cm×30 cm）的大规模生产也可以通过基于 由于PVP / AMP粘土基体具有出色的吸水性能，并且受水分驱动的PFOS具有良好的迁移性，即使在经过严格的物理（切割，刮擦或掉落沙地磨损）后，我们的拒油纳米复合膜也可以反复自我修复。 ）和化学（真空紫外线氧化）损坏。这种多功能纳米复合膜（30 cm×30 cm）的大规模生产也可以通过基于原位凝胶形成。