Polymeric nanofibers with superhydrophobic property have attracted vast interest in various applications, especially oil/water separation. In this work, superhydrophobic PLA nanofibers have been fabricated by an electrospinning process and treatment with a hydrophobic agent, alkyl ketene dimer (AKD). AKD consists of a functional group that is specifically reactive toward hydroxyl groups. Glycerol is employed as a template, providing –OH functional groups for the PLA matrix. The electrospun fiber mats were then immersed in AKD solution, in which a grafting reaction took place, leading to an increase in hydrophobicity of the fiber mats. Chemical structures and properties of the materials were then characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), water contact angle (WCA) measurement, and oil absorption ability. Oil/water separation efficiency of the degradable nanofibers was assessed for their use for oil-contaminated water treatment. The fiber mats, after AKD treatment, show super-hydrophobic properties, with oleophilicity. The material possesses high oil absorption rates with absorption capacities higher than 10 g/g fibers and adsorption–desorption cycle abilities of greater than ten cycles. As these materials are derived from a degradable polymer, they are environmentally-friendly and can easily be disposed of after use. These have many advantages over conventional materials.

具有超疏水性能的聚合物纳米纤维在各种应用中引起了极大的兴趣，特别是油/水分离。在这项工作中，超疏水的PLA纳米纤维已经通过静电纺丝工艺制造，并通过疏水剂烷基烯酮二聚体（AKD）处理。AKD由对羟基具有特异性反应性的官能团组成。甘油用作模板，为PLA基质提供–OH官能团。然后将电纺纤维垫浸入AKD溶液中，在该溶液中发生接枝反应，从而导致纤维垫的疏水性增加。然后通过傅里叶变换红外（FTIR）光谱，扫描电子显微镜（SEM），水接触角（WCA）测量来表征材料的化学结构和性质，和吸油能力。评估可降解纳米纤维在油污染水处理中的油/水分离效率。AKD处理后的纤维毡具有超疏水性和亲油性。该材料具有很高的吸油率，吸收能力高于10 g / g纤维，吸附-解吸循环能力大于十个循环。由于这些材料均来自可降解的聚合物，因此它们对环境友好，并且在使用后可以轻松处置。与常规材料相比，它们具有许多优势。该材料具有很高的吸油率，吸收能力高于10 g / g纤维，吸附-解吸循环能力大于十个循环。由于这些材料均来自可降解的聚合物，因此它们对环境友好，并且在使用后可以轻松处置。与常规材料相比，它们具有许多优势。该材料具有很高的吸油率，吸收能力高于10 g / g纤维，吸附-解吸循环能力大于十个循环。由于这些材料均来自可降解的聚合物，因此它们对环境友好，并且在使用后可以轻松处置。与常规材料相比，它们具有许多优势。