Abstract Electrospun starch fiber mats have many potential applications, but an improvement in their mechanical properties is required to realize them. In the present study, wet-electrospun starch fiber mats were subjected to post-drying conditioning at controlled equilibrium relative humidity and equilibration time. The weight-normalized ultimate tensile strength of starch fiber mats increased significantly with equilibration at relative humidity >0.75 after 28 days. Morphological observation and X-ray diffraction analysis excluded significant changes in fiber size or crystallinity, and thus we concluded that conglutination brought about by the plasticizing effect of water and observed microscopically was primarily responsible for this mechanical improvement.

中文翻译：

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增塑和粘合提高电纺淀粉纤维毡的拉伸强度

摘要 电纺淀粉纤维毡有许多潜在的应用，但需要提高其机械性能才能实现。在本研究中，湿电纺淀粉纤维垫在受控的平衡相对湿度和平衡时间下进行干燥后调理。28 天后，淀粉纤维垫的重量归一化极限拉伸强度随着相对湿度>0.75 的平衡而显着增加。形态观察和 X 射线衍射分析排除了纤维尺寸或结晶度的显着变化，因此我们得出结论，水的增塑作用和显微镜观察引起的粘合是这种机械改进的主要原因。