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通过将聚乙烯醇(PVA)与聚对苯二甲丁二醇酯(PBT)不同比例混合进行静电纺丝,对所得PBT/PVA复合纳米纤维膜通过扫描电子显微镜(SEM)、单轴拉伸测试以及水接触角测试进行了表征。结果显示:PBT/PVA混合溶液的可纺性和所得纤维膜形貌随PVA含量增加而变化;纯PBT纳米纤维膜表现为较低的力学性能和疏水性(水接触角为135°),而少量PVA的混入(PBT/PVA=20/1或10/1)可以有效提高所得纤维膜力学性能和亲水性,尤其10/1的PBT/PVA复合纤维膜在力学性能提高的同时表现为超亲水特性(水接触为0°)。
The obtained PBT / PVA composite nanofiber membrane was subjected to electrospinning by mixing different ratios of polyvinyl alcohol (PVA) and polybutylene terephthalate (PBT), and the obtained PBT / PVA composite nanofibrous membrane was subjected to scanning electron microscopy (SEM), uniaxial stretching Testing and water contact angle tests were characterized. The results showed that the spinnability of PBT / PVA mixed solution and the morphology of the obtained fiber membrane changed with the increase of PVA content. The pure PBT nanofiber membrane exhibited low mechanical properties and hydrophobicity (water contact angle of 135 °) The incorporation of a small amount of PVA (PBT / PVA = 20/1 or 10/1) can effectively improve the mechanical properties and hydrophilicity of the resulting fiber membrane, especially the 10/1 PBT / PVA composite fiber membrane performance at the same time improve the mechanical properties of super Hydrophilic properties (water contact 0 °).