Abstract

Electrospinning has become the most studied technique in the production of nanofibrous materials. Sodium alginate-based (SAlg) nanofibrous material is used widely in many application fields due to its excellent properties, but it needs to combine with synthetic polymers, such as polyvinyl alcohol (PVA), to enhance its electrospinability. The electrospun SAlg/PVA nonwoven could be used in many fields; however, it needs some mechanical stability. The focus of this paper is the development of a SAlg/PVA nanofibrous material with improved mechanical properties using a crosslinking agent 1-ethyl-3-(-3-dimethylaminopropyl) carbodiimide hydrochloride/N-Hydroxysuccinimide (EDC/NHS) by electrospinning. The obtained electrospun nanofibrous nonwoven was characterized by using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimeter (DSC), water contact angle, and tensile test. The results have shown that the mechanical properties of the electrospun SAlg/PVA nanofibrous nonwoven were significantly enhanced with the addition of EDC/NHS. Moreover, the electrospun SAlg/PVA-EDC/NHS nanofibrous nonwoven was found relatively stable against the water than the electrospun SAlg/PVA nanofibrous nonwoven. This preliminary report shows that the advanced alginate-based nanofibrous nonwoven is a promising candidate for many application fields such as textile, food, and biomedical.

摘要

静电纺丝已成为纳米纤维材料生产中研究最多的技术。海藻酸钠基（SAlg）纳米纤维材料因其优异的性能被广泛应用于许多应用领域，但它需要与聚乙烯醇（PVA）等合成聚合物结合，以增强其电纺性。电纺SAlg/PVA非织造布可用于许多领域；但是，它需要一些机械稳定性。本文的重点是使用交联剂 1-乙基-3-(-3-二甲基氨基丙基)碳二亚胺盐酸盐/ N开发具有改进机械性能的 SAlg/PVA 纳米纤维材料- 静电纺丝法制备的羟基琥珀酰亚胺 (EDC/NHS)。使用扫描电子显微镜（SEM）、傅里叶变换红外光谱（FTIR）、差示扫描量热仪（DSC）、水接触角和拉伸试验对所得电纺纳米纤维非织造布进行表征。结果表明，随着EDC/NHS的添加，电纺SAlg/PVA纳米纤维非织造布的机械性能显着增强。此外，发现电纺 SAlg/PVA-EDC/NHS 纳米纤维非织造布对水比电纺 SAlg/PVA 纳米纤维非织造布相对稳定。这份初步报告表明，先进的基于藻酸盐的纳米纤维非织造布是纺织、食品和生物医学等许多应用领域的有希望的候选者。