中文摘要：

以全氟磺酸（PFSA）为聚合物主体,加入疏水聚合物聚偏氟乙烯（PVDF）共混,通过静电纺丝制备了PFSA-PVDF复合纳米纤维。通过电导率、黏度、表面张力、动态光散射、扫描电镜以及差示扫描量热（DSC）等表征手段系统考察了共混体系中聚合物的配比对溶液性质及纤维膜的形态结构和性能的影响。结果表明：PVDF与PFSA之间具有较强烈的相互作用,导致纺丝溶液的黏度增加,从而有效提高溶液的可纺性。随着纺丝液中PVDF的含量提高,复合纤维的直径分布变得均匀。

英文摘要：

Using perfluorinated sulfonic acid （PFSA） as the main polymer and hydrophobic polymer polyvinylidene fluoride （PVDF） as addictive, PFSA-PVDF composited nanofiber membranes were prepared by the electrospinning method. Various characterization methods such as conductivity, viscosity, surface tension, dynamic light scattering, scanning electron microscope and differential scanning calorimeter were conducted to study the effect of PFSA-PVDF mass ratios on solution property, morphology and physical property. Results showed that the strong interaction between PVDF and PFSA leaded to an increase in the viscosity of the mixed solution, and effectively improved the solution electrospinnability. The fiber diame- ter distribution became uniform with the increase of PVDF content.