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Preparation of PAN@PU coaxial electrostatic spun nanofibers for oil/water separation
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2023-11-29 , DOI: 10.1002/app.54973
Shaokang Fang 1 , Huirong Li 1 , Shida Feng 1 , Pengxiang Wang 1 , Yue Yu 1 , Hong Zhang 1 , Jing Guo 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2023-11-29 , DOI: 10.1002/app.54973
Shaokang Fang 1 , Huirong Li 1 , Shida Feng 1 , Pengxiang Wang 1 , Yue Yu 1 , Hong Zhang 1 , Jing Guo 1
Affiliation
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Coaxial electrostatic spinning (co-electrostatic spinning) technology has greatly expanded the versatility of the preparation of core–shell polymer nanofibers and has found a wide range of applications in the environmental and biological fields. Here we present a method for the preparation of coaxial nanofibers using polyacrylonitrile (PAN) and polyurethane (PU) as raw materials. It was found that the tensile strength ranges from 2.14 to 4.07 MPa with the increasing spinning speed of the nucleated PU layer, and the elongation at break was up to 95.09% for M6:4, which was three times higher than that of the original MPAN (30.54%), and the toughness of the nanofiber film was also significantly improved. Finally, the oil/water separation capacity of the coaxial nanofiber membrane was investigated, and the results showed that the separation fluxes for various oil compounds ranged from 2380.18 to 3130.17 L·m−2·h−1, with separation efficiencies above 99%. This study not only investigates the effect of different flow rates of core (PU)/shell (PAN) on the performance of coaxial electrostatic spun nanofiber membranes, but also provides a new insight into the coaxial electrostatic spinning process.
中文翻译：
油水分离用PAN@PU同轴静电纺纳米纤维的制备
同轴静电纺丝（共静电纺丝）技术极大地拓展了核壳聚合物纳米纤维制备的通用性，在环境和生物领域有着广泛的应用。我们提出了一种以聚丙烯腈（PAN）和聚氨酯（PU）为原料制备同轴纳米纤维的方法。结果发现，随着成核PU层纺丝速度的增加，拉伸强度在2.14~4.07 MPa之间变化， M 6:4的断裂伸长率高达95.09%，是原来的3倍。M PAN (30.54%)，纳米纤维膜的韧性也显着提高。最后对同轴纳米纤维膜的油水分离能力进行了研究，结果表明，各种油类化合物的分离通量在2380.18～3130.17 L·m -2 ·h -1范围内，分离效率在99%以上。该研究不仅研究了核（PU）/壳（PAN）不同流量对同轴静电纺纳米纤维膜性能的影响，而且为同轴静电纺丝工艺提供了新的见解。
更新日期：2023-11-29
中文翻译：
油水分离用PAN@PU同轴静电纺纳米纤维的制备
同轴静电纺丝（共静电纺丝）技术极大地拓展了核壳聚合物纳米纤维制备的通用性，在环境和生物领域有着广泛的应用。我们提出了一种以聚丙烯腈（PAN）和聚氨酯（PU）为原料制备同轴纳米纤维的方法。结果发现，随着成核PU层纺丝速度的增加，拉伸强度在2.14~4.07 MPa之间变化， M 6:4的断裂伸长率高达95.09%，是原来的3倍。M PAN (30.54%)，纳米纤维膜的韧性也显着提高。最后对同轴纳米纤维膜的油水分离能力进行了研究，结果表明，各种油类化合物的分离通量在2380.18～3130.17 L·m -2 ·h -1范围内，分离效率在99%以上。该研究不仅研究了核（PU）/壳（PAN）不同流量对同轴静电纺纳米纤维膜性能的影响，而且为同轴静电纺丝工艺提供了新的见解。
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