Self-adhesive polyethersulfone polyurethane carbon nanotubes fiber reinforced aerogel and its application in oil-water separation

被引:0
作者
Gao, Yanfei [1 ]
Zhang, Yin [2 ]
Zhang, Yuqing [2 ]
Qi, Kun [1 ]
Zhou, Yuman [1 ]
Ming, Jinfa [2 ,3 ,4 ]
机构
[1] Zhongyuan Univ Technol, Coll Intelligent Text & Fabr Elect, Zhengzhou 450007, Peoples R China
[2] Qingdao Univ, Ind Res Inst Nonwovens & Tech Text, Coll Text & Clothing, Qingdao 266071, Peoples R China
[3] Shandong Engn Res Ctr Specialty Nonwoven Mat, Qingdao 266071, Peoples R China
[4] Weiqiao UCAS Sci & Technol Pk, Binzhou Inst Technol, Binzhou 256606, Peoples R China
关键词
Polyethersulfone; Polyurethane; Carbon nanotubes; Aerogel; Oil-water separation; FABRICATION;
D O I
10.1016/j.molstruc.2025.141682
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The direct discharge of oily wastewater will seriously pollute water ecology and human health. Aerogel is ideal candidate to remedy the oily wastewater, but facing challenges for the usage of toxic small molecules crosslinker and the construction of elasticity. Herein, we adopt fiber self-adhesion mode, not crosslinker, to construct aerogel with ultra-light, high elasticity and excellent oil-water separation performance. And then, polyethersulfone/ polyurethane/multi wall carbon nanotubes (PES/PU/MWCNTs) fiber aerogels are prepared by freeze-drying and heat treatment, and their ability to separate oil from water is explored through flux and separation efficiency tests. The addition of MWCNTs can enhance the mechanical properties of aerogels, and the compression stress of aerogels with 10 wt% MWCNTs is up to 2.6003 kPa. The density of PES/PU/MWCNTs-x composite fiber aerogel is stable at about 20-30 mg cm- 3. By adjusting the content of MWCNTs, it is found that the aerogel with the parameter of 20 wt% MWCNTs has the best separation efficiency (99.97 %) and separation flux (32,897.67 L m- 2 h-1). Our work provides a simple and effective construction scheme of fiber aerogel to solve the problem of oilwater separation.
引用
收藏
页数:9
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