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选用静电纺丝法制备的PVA纳米纤维毡为基体,与金属铜、铁离子发生配位反应,制备PVA基金属配合纳米纤维。采用原子吸收光谱分析仪研究了PVA纳米纤维膜吸附的金属离子含量,采用红外光谱(FT-IR)分析了PVA与金属离子的配合作用。同时研究了与金属离子配合对纳米纤维膜亲水性和力学性能的影响。实验结果表明,PVA纳米纤维与金属离子配合的能力较常规PVA纤维有显著提高,PVA纳米纤维膜的亲水性和力学性能略有降低。
The PVA nanofiber felt prepared by electrospinning method is used as matrix, and the coordination reaction with metallic copper and ferric ions is carried out to prepare PVA-based metal coordination nanofibers. The content of metal ions adsorbed on PVA nanofiber membrane was studied by atomic absorption spectroscopy. The interaction between PVA and metal ions was analyzed by infrared spectroscopy (FT-IR). At the same time, the effect of metal ions on the hydrophilicity and mechanical properties of nanofibrous membranes was also studied. The experimental results show that the ability of the PVA nanofibers to complex with metal ions is significantly higher than that of the conventional PVA fibers, and the hydrophilicity and the mechanical properties of the PVA nanofiber films are slightly reduced.