Journal
POLYMER
Volume 193, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2020.122356
Keywords
Micro/nanofibrous nonwoven; Groove-like rough topology; Oil/water separation; Melt blowing; Etching
Categories
Funding
- China Scholarship Council [201808410565]
- Scientific Research Project of Tianjin Municipal Education Commission [2019ZD01]
- Collaborative Innovation Center of Textile and Garment Industry, Henan Province [2020-CYY-003]
- Henan Key Laboratory of Medical Polymer Materials Technology and Application [1-TRB-03-190227]
- Key Research Projects of Henan Higher Education Institutions [20A540001]
- ZhongYuan University of Technology, China [2018XQG04, K2018QN011]
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Enhancing oil wettability is an effective way to improve the performance of removing oil from water efficiently and rapidly. In this study, an ordered groove-like rough morphology was exploited to engrave on polypropylene/polyester (PP/PET) micro/nanofiber surface using a three-step tailored process of blending, drawing and etching. The results showed PP/PET micro/nanofibers possessed a bimodal diameter distribution and an ordered groove-like rough morphology with groove-diameter of 100-200 nm. Additionally, the groove-like fiber surface roughness reached up to 1.13 and endowed the prepared nonwovens with a rapid oil wetting capability for separating oil and water mixtures. Furthermore, a separation efficiency of 99% was obtained, driven solely by gravity, in which the nonwovens had high stability. The proposed nonwovens may provide an efficient and fast alternative the industry strategy to large-scale oil spill cleanup.
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