Abstract

The surface morphology of nanomaterials has been attracting the attention of researchers in order to determine their advantages—related properties. In this work, polyvinylidene fluoride (PVDF) branched nanofibers are directly electrospun with a diameter of less than 35 nm at low relative humidity. The surface morphology and branched structure of as-prepared PVDF webs are characterized. Furthermore, the wettability properties of electrospun fiber webs are demonstrated. The results show that PVDF branched nanofibers have tiny diameters, excellent water contact angle, outstanding specific surface area, and high oil absorption capacity, which exhibit a bright future in the field of oil absorption. We believe this study can be served as a good reference for the preparation, characterization, and application of the branched structure for oil-water separation.

摘要

纳米材料的表面形态一直吸引着研究人员的注意力，以确定它们的优势——相关特性。在这项工作中，聚偏二氟乙烯 (PVDF) 支化纳米纤维在低相对湿度下直接静电纺丝，直径小于 35 nm。表征了所制备的 PVDF 网的表面形态和分支结构。此外，还证明了电纺纤维网的润湿性。结果表明，PVDF支化纳米纤维具有微小的直径、优异的水接触角、优异的比表面积和高吸油能力，在吸油领域具有广阔的前景。我们相信本研究可​​为制备、表征、