Roche Remi, Yalcinkaya Fatma
National Polytechnic Institute of Chemical Engineering and Technology (INP-ENSIACET), 4, Allée Emile Monso-CS 44362, 31030 Toulouse CEDEX 4, France.
Department of Nanotechnology and Informatics, Institute of Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentska 1402/2, 46117 Liberec, Czech Republic.
Nanomaterials (Basel). 2018 Sep 29;8(10):771. doi: 10.3390/nano8100771.
Membranes are considered as a promising technology for separation and filtration processes. Here, novel polyvinylidene fluoride (PVDF) nanofibrous multilayer membranes were fabricated by wire-based industrial electrospinning equipment following by a lamination process. The lamination process was optimised under various applied temperature, force of lamination, and lamination time. Air permeability and burst-pressure tests were run to determine the optimum membranes for filtration application. The structures of the prepared membranes were characterised by scanning electron microscopy and pore-size analysis. The hydrophilic properties of the membranes were evaluated using water contact angle measurement, and the mechanical strength of the membranes was analysed. Air and water filtration tests were run to find the possible application of prepared membranes. The air filtration results showed that membranes had high filtration efficiencies: Over 99.00% for PM, and PM. The water filtration results indicated that permeability of the membranes changed from 288 to 3275 L/m²hbar. The successful preparation of such an interesting material may provide a new approach for the design and development of electrospun filter membranes.
膜被认为是分离和过滤过程中一种很有前景的技术。在此，通过基于金属丝的工业静电纺丝设备制备新型聚偏氟乙烯（PVDF）纳米纤维多层膜，随后进行层压工艺。在不同的施加温度、层压力和层压时间下对层压工艺进行了优化。进行了透气度和爆破压力测试，以确定用于过滤应用的最佳膜。通过扫描电子显微镜和孔径分析对制备的膜结构进行了表征。使用水接触角测量评估了膜的亲水性，并分析了膜的机械强度。进行了空气和水过滤测试，以探索制备的膜的可能应用。空气过滤结果表明，膜具有高过滤效率：对PM和PM的过滤效率超过99.00%。水过滤结果表明，膜的渗透率从288变为3275 L/m²hbar。成功制备这种有趣的材料可能为电纺滤膜的设计和开发提供一种新方法。
