{"title":"超疏水吹旋PTFE-SiO2复合膜增强液-液萃取","authors":"Yaozhong Zhang, Pei-Yin Diao, Ramin Farnood","doi":"10.1002/app.56939","DOIUrl":null,"url":null,"abstract":"<p>An ultrafine-fibrous polytetrafluoroethylene (PTFE)–SiO<sub>2</sub> membrane was successfully fabricated using the solution blow spinning (SBS) method. This membrane demonstrated superhydrophobicity (water contact angle > 150°) and oleophilicity (ethyl acetate contact angle = 0°) compared to a commercial PTFE membrane. Additionally, the SBS PTFE–SiO<sub>2</sub> membrane exhibited a high porosity of 83% compared to 55% in the commercial PTFE membrane. When used for membrane-assisted extraction, the PTFE–SiO<sub>2</sub> membrane exhibited a higher caffeine transport rate (3.84 × 10<sup>−7</sup> m s<sup>−1</sup>) than the commercial PTFE membrane (2.18 × 10<sup>−7</sup> m s<sup>−1</sup>). The addition of SiO<sub>2</sub> nanoparticles provided better hydrophobicity and higher phase stability during membrane-assisted solvent extraction. Given the excellent thermal and chemical stability of PTFE–SiO<sub>2</sub>, this type of membrane shows potential for high-value solvent extraction and stable long-term operation with no emulsion generation. The SBS method offers a promising alternative for the sustainable fabrication of PTFE membranes on a larger scale without the need for organic solvents or lubricants.</p>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 22","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.56939","citationCount":"0","resultStr":"{\"title\":\"Superhydrophobic Solution Blow Spinning PTFE–SiO2 Composite Membranes for Enhanced Liquid–Liquid Extraction\",\"authors\":\"Yaozhong Zhang, Pei-Yin Diao, Ramin Farnood\",\"doi\":\"10.1002/app.56939\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>An ultrafine-fibrous polytetrafluoroethylene (PTFE)–SiO<sub>2</sub> membrane was successfully fabricated using the solution blow spinning (SBS) method. This membrane demonstrated superhydrophobicity (water contact angle > 150°) and oleophilicity (ethyl acetate contact angle = 0°) compared to a commercial PTFE membrane. Additionally, the SBS PTFE–SiO<sub>2</sub> membrane exhibited a high porosity of 83% compared to 55% in the commercial PTFE membrane. When used for membrane-assisted extraction, the PTFE–SiO<sub>2</sub> membrane exhibited a higher caffeine transport rate (3.84 × 10<sup>−7</sup> m s<sup>−1</sup>) than the commercial PTFE membrane (2.18 × 10<sup>−7</sup> m s<sup>−1</sup>). The addition of SiO<sub>2</sub> nanoparticles provided better hydrophobicity and higher phase stability during membrane-assisted solvent extraction. Given the excellent thermal and chemical stability of PTFE–SiO<sub>2</sub>, this type of membrane shows potential for high-value solvent extraction and stable long-term operation with no emulsion generation. The SBS method offers a promising alternative for the sustainable fabrication of PTFE membranes on a larger scale without the need for organic solvents or lubricants.</p>\",\"PeriodicalId\":183,\"journal\":{\"name\":\"Journal of Applied Polymer Science\",\"volume\":\"142 22\",\"pages\":\"\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2025-03-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.56939\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Applied Polymer Science\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/app.56939\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"POLYMER SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Polymer Science","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/app.56939","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
摘要
采用溶液吹丝（SBS）法制备了超细纤维聚四氟乙烯(PTFE) -SiO2膜。与商用PTFE膜相比，该膜表现出超疏水性（水接触角>； 150°）和亲油性（乙酸乙酯接触角= 0°）。此外，SBS PTFE - sio2膜的孔隙率高达83%，而商用PTFE膜的孔隙率为55%。当用于膜辅助提取时，PTFE - sio2膜的咖啡因转运率（3.84 × 10−7 m s−1）高于商用PTFE膜（2.18 × 10−7 m s−1）。在膜辅助溶剂萃取过程中，SiO2纳米颗粒的加入具有更好的疏水性和更高的相稳定性。由于PTFE-SiO2具有优异的热稳定性和化学稳定性，该膜具有高价值溶剂萃取和长期稳定运行而不产生乳化液的潜力。SBS方法为大规模可持续制造PTFE膜提供了一种有前途的替代方法，而不需要有机溶剂或润滑剂。
An ultrafine-fibrous polytetrafluoroethylene (PTFE)–SiO2 membrane was successfully fabricated using the solution blow spinning (SBS) method. This membrane demonstrated superhydrophobicity (water contact angle > 150°) and oleophilicity (ethyl acetate contact angle = 0°) compared to a commercial PTFE membrane. Additionally, the SBS PTFE–SiO2 membrane exhibited a high porosity of 83% compared to 55% in the commercial PTFE membrane. When used for membrane-assisted extraction, the PTFE–SiO2 membrane exhibited a higher caffeine transport rate (3.84 × 10−7 m s−1) than the commercial PTFE membrane (2.18 × 10−7 m s−1). The addition of SiO2 nanoparticles provided better hydrophobicity and higher phase stability during membrane-assisted solvent extraction. Given the excellent thermal and chemical stability of PTFE–SiO2, this type of membrane shows potential for high-value solvent extraction and stable long-term operation with no emulsion generation. The SBS method offers a promising alternative for the sustainable fabrication of PTFE membranes on a larger scale without the need for organic solvents or lubricants.
期刊介绍：
The Journal of Applied Polymer Science is the largest peer-reviewed publication in polymers, #3 by total citations, and features results with real-world impact on membranes, polysaccharides, and much more.
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