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| Study on Fabrication of PAN/CNF Composite Films and Its Oil-water Separation Properties |
| Received:June 13, 2025 Revised:August 05, 2025 |
| DOI：10.11981/j.issn.1000-6842.2026.01.48 |
| Key Words:cellulose nanofiber;polyacrylonitrile;electrospinning;oil-water separation |
| Fund Project:国家自然科学基金（22208309）；浙江省领雁计划项目（2025C02204）；衢州市科技计划项目（2023Z002）；浙江理工大学青年创新专项（24202098-Y）。 |
| Author Name | Affiliation | Postcode | | LIN Chuansheng* | 1State Key Lab of Bio-based Fiber Materials， Zhejiang Sci-Tech University， Hangzhou， Zhejiang Province， 310018 | 310018 | | YU Cong | 1State Key Lab of Bio-based Fiber Materials， Zhejiang Sci-Tech University， Hangzhou， Zhejiang Province， 310018 | 310018 | | HUANG Xueying | 2Xianhe Co.， Ltd.， Quzhou， Zhejiang Province， 324022 | 324022 | | WANG Jin | 3Kingdecor （Zhejiang） Co.， Ltd.， Quzhou， Zhejiang Province， 324000 | 324000 | | FU Qunying | 3Kingdecor （Zhejiang） Co.， Ltd.， Quzhou， Zhejiang Province， 324000 | 324000 | | CHEN Tianying* | 1State Key Lab of Bio-based Fiber Materials， Zhejiang Sci-Tech University， Hangzhou， Zhejiang Province， 310018 | 310018 | | TANG Yanjun | 1State Key Lab of Bio-based Fiber Materials， Zhejiang Sci-Tech University， Hangzhou， Zhejiang Province， 310018 | 310018 |
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| Abstract: |
| In this study， cellulose nanofiber （CNF） and polyacrylonitrile （PAN） nanofiber film were prepared， respectively， via high-pressure homogenization and electrospinning techniques. The PAN/CNF composite films were constructed using the vacuum loading method， and the effects of CNF loading capacity on the physicochemical properties and oil-water separation performance of PAN/CNF composite films were investigated. The results indicated that CNF successfully loaded to the surface of PAN nanofiber film， with PAN/CNF composite films exhibiting a double-layer structure. The average pore size of the PAN nanofiber film without CNF loading （PAN/CNF-0） was 0.234 µm. When the actual CNF loading capacity reached 1.16 g/m²， the average pore size of the prepared PAN/CNF-2 decreased to 0.182 µm， and the CNF layer exhibited a nanoscale porous structure. As the CNF loading increased， the air permeability， water contact angle， and water wetting time of PAN/CNF composite films all decreased continuously. Furthermore， PAN/CNF-2 exhibited an underwater oil contact angle of 155° and a water flux of 3 569 L/(h·m²)， demonstrating significantly enhanced hydrophilic and oleophobic properties compared to PAN/CNF-0 （143° and 4 412 L/(h·m²)）. |
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