Nonwoven fibrous mats of poly(ethylene‐co‐vinyl alcohol) (EVOH) and thermoplastic starch (TPS) blends were successfully prepared through the electrospinning technique using a mixed solvent system of isopropyl alcohol and water. The influence of TPS on the morphology and structure of the fibrous mats was investigated using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy. The addition of TPS to EVOH resulted in beaded electrospun fibers. The SEM images revealed decreasing average width of the blend fibers and increasing quantity of beads with an increased TPS content. EVOH/TPS fibers mats irradiated under ultraviolet light using sodium benzoate as a photosensitizer were also prepared. The size and number of beads were diminished in the photocrosslinked EVOH/TPS fiber mats. The as‐spun and crosslinked EVOH/TPS fiber mats exhibit a superior fluid uptake ability (with 20 wt% of TPS) and superior barrier properties (with 20 and 40 wt% of TPS) in comparison to those observed in neat electrospun EVOH mats. These properties are of particular interest for use in dressing materials for the medical industry and for use in multilayer plastic fuel tanks for the automotive industry, respectively. POLYM. ENG. SCI., 60:474–480, 2020. © 2019 Society of Plastics Engineers

中文翻译：

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热塑性淀粉和光交联剂对电纺聚（乙烯-共-乙烯醇）毡垫性能和形貌的影响

聚乙烯（co-co）的非织造纤维毡通过静电纺丝技术，使用异丙醇和水的混合溶剂系统成功地制备了乙烯醇（EVOH）和热塑性淀粉（TPS）混合物。使用扫描电子显微镜（SEM）和傅里叶变换红外光谱法研究了TPS对纤维毡的形态和结构的影响。在EVOH中添加TPS会形成串珠的电纺纤维。SEM图像显示，共混纤维的平均宽度减小，而TPS含量增加，珠粒数量增加。还制备了使用苯甲酸钠作为光敏剂在紫外线下辐照的EVOH / TPS纤维毡。在光交联的EVOH / TPS纤维垫中，珠子的大小和数量减少了。与在纯电纺EVOH毡中观察到的相比，初纺和交联的EVOH / TPS纤维毡表现出优异的流体吸收能力（TPS为20 wt％）和优异的阻隔性能（TPS为20和40 wt％）。这些性质分别用于医疗工业的装饰材料和用于汽车工业的多层塑料燃料箱特别令人感兴趣。POLYM。ENG。SCI。，60：474–480，2020.©2019塑料工程师协会