Cho Eunmi, Kim Mac, Park Jin-Seong, Lee Sang-Jin
Chemical Materials Solutions Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea.
Department of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea.
Polymers (Basel). 2020 May 1;12(5):1026. doi: 10.3390/polym12051026.
Herein, an antireflection and superhydrophobic film was obtained by uniformly forming nanostructures on the surface of polyethylene terephthalate (PET) substrate using oxygen plasma without a pattern mask and coating plasma-polymer-fluorocarbon (PPFC) on the nanostructured surface by mid-range frequency sputtering. PPFC/nanostructured-PET showed a reflectance of 4.2%, which is 56% lower than that of the PET film. Haze was also improved. Nanostructured-PET exhibited a superhydrophilic surface due to plasma deformation and a superhydrophobic surface could be realized by coating PPFC on the nanostructured surface. The PPFC coating prevented the aging of polymer film nanostructures and showed excellent durability in a high-temperature and high-humidity environment. It exhibited excellent flexibility to maintain the superhydrophobic surface, even at a mechanical bending radius of 1 mm, and could retain its properties even after repeated bending for 10,000 times.
在此,通过在没有图案掩膜的情况下使用氧等离子体在聚对苯二甲酸乙二酯(PET)基底表面均匀形成纳米结构,并通过中频溅射在纳米结构化表面上涂覆等离子体聚合物氟碳(PPFC),获得了一种抗反射和超疏水薄膜。PPFC/纳米结构化PET的反射率为4.2%,比PET薄膜低56%。雾度也得到了改善。由于等离子体变形,纳米结构化PET呈现出超亲水表面,通过在纳米结构化表面涂覆PPFC可以实现超疏水表面。PPFC涂层防止了聚合物薄膜纳米结构的老化,并且在高温高湿环境中表现出优异的耐久性。即使在1mm的机械弯曲半径下,它也表现出优异的柔韧性以保持超疏水表面,并且即使在反复弯曲10000次后仍能保持其性能。