Three-dimensional multi-scale membrane for efficient air filtration performances: preparation, optimization and characterization

Environmental pollution, especially air pollution, seriously endangers public health globally, air filtration materials become a research hotspot. Here, novel polyurethane (PU)/polyvinylidene fluoride (PVDF)@ polypropylene (PP) multi-scale membranes were fabricated by a lamination process of electro...

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Bibliographic Details
Published in:Journal of polymer research 2024-03, Vol.31 (3), Article 75
Main Authors: Sun, Fei, Zheng, Yaxin, Liu, Enxing, Chen, Tianying, Xiao, Qi
Format: Article
Language:English
Subjects:
Air filters
Air pollution
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Contact angle
Hydrophobicity
Industrial Chemistry/Chemical Engineering
Low pressure
Membranes
Microfibers
Original Paper
Outdoor air quality
Polymer Sciences
Polyurethane resins
Polyvinylidene fluorides
Pressure drop
Public health
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Summary:Environmental pollution, especially air pollution, seriously endangers public health globally, air filtration materials become a research hotspot. Here, novel polyurethane (PU)/polyvinylidene fluoride (PVDF)@ polypropylene (PP) multi-scale membranes were fabricated by a lamination process of electrospinning and melt-blown methods. The nanofibers membrane and microfibers membrane were prepared and optimized under various parameter. These morphologies and structures of the prepared multi-scale membranes were characterized by SEM, EDS and FT-IR. And the static water contact angle was tested to evaluate the hydrophobicity. Air filtration tests were operated to determine the optimum membranes for air filtration application. The air filtration results showed that the multi-scale PF 1 @PP 60 membranes had highly air filtration efficiency (96.72%) and quality factor (0.04167 Pa −1 ) which can be obtained by only electrospinning 60 min. The successful preparation of multi-scale membranes provides a new way for the design and development of electrospinning air filtration membranes. And this multi-scale membrane provides a new strategy for the preparation of an air filter with excellent comprehensive filtration performance of high filtration efficiency and low pressure drop for large-scale production.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-024-03923-7