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International journal of biological macromolecules. 2025 Jun 13:145202. doi: 10.1016/j.ijbiomac.2025.145202 Q18.52025

Green electrospinning ethyl cellulose/chitosan bimodal nanofiber membrane based on internal-external synergistic enhancement strategy for high-flux air filtration

基于内外协同增强策略的绿色双模纳米纤维膜高效空气过滤材料电纺制备研究乙基纤维素/壳聚糖 翻译改进

Qibin Wang  1, Zungui Shao  2, Changzhuo Deng  1, Jingxun Li  3, Shihan Zhang  3, Sihang Pan  3, Ruixin Chen  1, Gaofeng Zheng  4, Yifang Liu  5

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作者单位

  • 1 Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361102, China.
  • 2 Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China.
  • 3 School of Aerospace Engineering, Xiamen University, Xiamen 361102, China.
  • 4 Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361102, China. Electronic address: zheng_gf@xmu.edu.cn.
  • 5 Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361102, China; Modern Precision Measurement and Laser Non-destructive Testing Key Laboratory of Higher Education in Fujian Province (Putian University), Putian 351100, China. Electronic address: yfliu@xmu.edu.cn.

    • DOI: 10.1016/j.ijbiomac.2025.145202 PMID: 40517852

    摘要 中英对照阅读

    The preparation of electrospinning air filtration membranes based on fully bio-based materials is the key to alleviate the energy and environmental crises. However, for the lack of reasonable materials matching and structural design strategies, it is difficult to balance the mechanical and filtration properties of bio-based fiber membranes. In this study, ethyl cellulose (EC)/chitosan (CS) bimodal nanofiber membrane was prepared by one-step electrospinning... ...点击完成人机验证后继续浏览

    基于全生物基材料的静电纺丝空气过滤膜的制备是缓解能源和环境危机的关键。然而，由于缺乏合理的材料匹配和结构设计策略，很难平衡生物基纤维膜的力学性能和过滤性能。本研究通过一步静电纺丝技术制备了乙基纤维素（EC）/壳聚糖（CS）双模纳米纤维膜。具体而言，EC用于构建低结合能系统，而CS的引入则增强了分层效果，并使用乙醇和水作为溶剂。更重要的是，创造性地提出了“内外协同增强策略”：一方面，在CS的加入后增强了氢键；另一方面，在加热-退火过程之后，纤维之间形成了结合结构，这归因于CS的熔化和固化。氢键和结合结构的结合极大地提高了膜的力学性能。15EC/1.5CS膜的弹性模量和拉伸强度分别为103.13 MPa和5.97 MPa。在85 L/min的气流速度下，15EC/1.5CS膜对PM0.3的过滤效率为99.01%，压降仅为56.2 Pa，品质因子为0.082 Pa-1。

    关键词：双模纤维；绿色静电纺丝；高通量空气过滤。

    Copyright © 2025. Published by Elsevier B.V.

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    期刊名：International journal of biological macromolecules

    缩写：INT J BIOL MACROMOL

    ISSN：0141-8130

    e-ISSN：1879-0003

    IF/分区：8.5/Q1

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    Green electrospinning ethyl cellulose/chitosan bimodal nanofiber membrane based on internal-external synergistic enhancement strategy for high-flux air filtration