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Biomimetic Design and Mass Production of Sustainable Multiscale Cellulose Fibers‐Based Hierarchical Filter Materials for Protective Clothing
Author(s) -
Guan QingFang,
Han ZiMeng,
Yang HuaiBin,
Yang KunPeng,
Ling ZhangChi,
Yin ChongHan,
Zhao YuXiang,
Wang JinLong,
Yan BeiBei,
Ma Tao,
Hu BiCheng,
Li Chao,
Pan XiaoFeng,
Chen SiMing,
Ma SiYue,
Yu ShuHong
Publication year - 2021
Publication title -
advanced materials technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.184
H-Index - 42
ISSN - 2365-709X
DOI - 10.1002/admt.202100193
Subject(s) - air permeability specific surface , materials science , coating , cellulose , clothing , filter (signal processing) , filtration (mathematics) , cellulose fiber , process engineering , composite material , computer science , fiber , layer (electronics) , chemical engineering , engineering , mathematics , statistics , archaeology , computer vision , history
As a core part of personal protective equipment (PPE), filter materials play a key role in individual protection, especially in the fight against the COVID‐19. Here, a high‐performance multiscale cellulose fibers‐based filter material is introduced for protective clothing, which overcomes the limitation of mutual exclusion of filtration and permeability in cellulose‐based filter materials. With the hierarchical biomimetic structure design and the active surface of multiscale cellulose fibers, high PM 2.5 removal efficiency of ≈92% is achieved with the high moisture transmission rate of 8 kg m −2 d −1 . Through a simple and effective dip‐coating and roll‐to‐roll process, the hierarchical filter materials can be made on a large scale and further fabricated into high‐quality protective clothing by industrial production equipment.