Department of Polymer Engineering, and ‡Department of Chemical and Biomolecular Engineering, University of Akron , Akron, Ohio 44325, United States.
ACS Appl Mater Interfaces. 2016 Aug 24;8(33):21683-90. doi: 10.1021/acsami.6b07364. Epub 2016 Aug 10.
Polymer nanofibers with interpenetrating network (IPN) morphology are used in this work for the development of composite, hydrophobic filter media in conjunction with glass fibers for removal of water droplets from ultralow sulfur diesel (ULSD). The nanofibers are produced from hydrophobic polyvinyl acetate (PVAc) and hydrophilic polyvinylpyrrolidone (PVP) by spinning the polymer solutions using gas jet fiber (GJF) method. The nanofibers coat the individual glass fibers due to polar-polar interactions during the spinning process and render the filter media highly hydrophobic with a water contact angle approaching 150°. The efficiency of the resultant filter media is evaluated in terms of separation of water droplets of average size 20 μm from the suspensions in ULSD.
本工作采用具有互穿网络（IPN）形态的聚合物纳米纤维，与玻璃纤维一起开发复合疏水性过滤介质，用于从超低硫柴油（ULSD）中去除液滴。纳米纤维由疏水性聚醋酸乙烯酯（PVAc）和亲水性聚乙烯吡咯烷酮（PVP）通过使用气体射流纺丝（GJF）方法纺制聚合物溶液制成。在纺丝过程中，由于极性-极性相互作用，纳米纤维覆盖在单个玻璃纤维上，使过滤介质具有极高的疏水性，水接触角接近 150°。根据从 ULSD 悬浮液中分离平均尺寸为 20μm 的液滴的效率来评估所得过滤介质的效率。
