基于salvinia natans的多功能超疏水纤维非织造布仿生设计，用于航空发动机过滤器的高效光热油水分离和微塑料提取

IF 13.2 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2025-10-17 DOI:10.1016/j.cej.2025.169770

Xiangyu Han, Zuozhu Yin, Yingping Yang, Haitao Yang, Jilin Xu, Zhen Hong, Chan Xie, Yidan Luo, Mingshan Xue

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Based on this, we prepared a multifunctional superhydrophobic nonwoven fabric made of ethylene-propylene side by side (ES) fiber, polyethylene terephthalate (PET) fiber, multi-walled carbon nanotubes (MWCNTs) and Mg<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>Fe layered double hydroxide (Mg<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>Fe LDH). This multifunctional fiber-based nonwoven fabric imitates the rough structure of the surface of <em>salvinia natans</em> through bionic design, which shows excellent hydrophobic performance, and the water contact angle can be as high as 160 ± 2°. At an ambient temperature of 70 °C, the oil-water separation efficiency can reach 98.8 % by thermal radiation. 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引用次数: 0

摘要

在复杂的运行条件下，现有的航空发动机滤清器容易被水、油、微塑料和其他污染物堵塞，导致过滤效率降低，维修间隔缩短。因此，迫切需要开发一种能有效分离油水和吸附污染物的多功能超疏水材料。在此基础上，制备了以乙烯丙烯并排（ES）纤维、聚对苯二甲酸乙二醇酯（PET）纤维、多壁碳纳米管（MWCNTs）和MgFe层状双氢氧化物（MgFe LDH）为材料的多功能超疏水非织造布。该多功能纤维基非织造布通过仿生设计，模拟了水草表面的粗糙结构，具有优异的疏水性能，水接触角可高达160 ± 2°。在环境温度为70 ℃时，热辐射对油水的分离效率可达98.8 %。在模拟红外光的卤素灯照射下，油水分离效率为98 %，在常温下无光照时，油水分离效率为97 %。与广泛用于油水分离的改性聚氨酯海绵相比，超疏水多功能无纺布具有三大优点。首先，改性聚氨酯海绵仅实现油水分离单一功能，而超疏水多功能无纺布可实现光热油水分离、有机污染物降解、微塑料萃取的协同效应。此外，超疏水多功能无纺布的机械和化学稳定性更强，这意味着它在恶劣工作条件下的飞机发动机中具有更大的应用潜力。最后，多功能无纺布的制备非常简单，具有规模化生产的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Bionic design of multifunctional superhydrophobic fiber-based nonwoven fabric inspired by salvinia natans for efficient photothermal oil-water separation and micro plastic extraction on aero-engine filters

查看原文本刊更多论文

Existing aero-engine filters are susceptible to clogging by water, oil, microplastics and other contaminants under complex operating conditions, resulting in reduced filtration efficiency and shorter maintenance intervals. Therefore, there is an urgent need to develop a multifunctional superhydrophobic material that can efficiently separate oil and water and adsorb pollutants. Based on this, we prepared a multifunctional superhydrophobic nonwoven fabric made of ethylene-propylene side by side (ES) fiber, polyethylene terephthalate (PET) fiber, multi-walled carbon nanotubes (MWCNTs) and Mg single bond

Fe layered double hydroxide (Mg single bond

Fe LDH). This multifunctional fiber-based nonwoven fabric imitates the rough structure of the surface of salvinia natans through bionic design, which shows excellent hydrophobic performance, and the water contact angle can be as high as 160 ± 2°. At an ambient temperature of 70 °C, the oil-water separation efficiency can reach 98.8 % by thermal radiation. The oil-water separation efficiency was 98 % when the material was irradiated by halogen lamps simulating infrared light, and 97 % at ambient temperature without any light. Compared with the modified polyurethane sponge widely used for oil-water separation, the super hydrophobic multi-functional non-woven fabric has three advantages. Firstly, modified polyurethane sponge only performs a single function: oil-water separation, while superhydrophobic multifunctional non-woven fabric can achieve synergistic effects of photothermal oil-water separation, organic pollutant degradation, and microplastic extraction. In addition, the mechanical and chemical stability of superhydrophobic multifunctional non-woven fabric is stronger, which means that it has greater potential for application in aircraft engines under harsh working conditions. Finally, the preparation of multifunctional non-woven fabrics is very simple and has the potential for large-scale production.

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.