Franco Edgar, Dussán Rosmery, Amú Maribel, Navia Diana
Architecture, Urbanism, and Esthetics Research Group, Faculty of Architecture, Art and Design, University of San Buenaventura, Cali, Colombia.
Faculty of Engineering, University of San Buenaventura, Cali, Colombia.
Nanoscale Res Lett. 2018 Aug 8;13(1):230. doi: 10.1186/s11671-018-2644-9.
Polymeric nanofibers are widely studied in the textile industry since with them, it is possible to get a great variety of functionalities. In this paper, polyamide 6/66 (PA 6/66) solutions at different concentrations (12, 17, and 22% wt.) were made, to get nanofibers through the basic electrospinning process which were characterized by scanning electron microscope (SEM) and productivity. Afterwards, nanofiber bundles were produced using the electrospinning sol-gel process, which were characterized by SEM and tensile test. From the results of statistical optimization based on one-way analysis of variance (ANOVA) with post hoc Tukey HSD, it was found that nanofiber bundles with higher productivity (1.39 ± 0.15 mg/min), draw ratio (9.0 ± 1.2), and tensile strength (29.64 ± 7.40 MPa) were obtained with a 17% concentration. Finally, a thermal characterization through differential scanning calorimetry (DSC) was done, finding evidence of a T and T reduction in the nanofibers in relation to PA 6/66 pellets and nanofiber bundles.
聚合物纳米纤维在纺织工业中得到了广泛研究，因为利用它们可以获得多种多样的功能。本文制备了不同浓度（12%、17%和22%重量）的聚酰胺6/66（PA 6/66）溶液，通过基本静电纺丝工艺获得纳米纤维，并通过扫描电子显微镜（SEM）和生产率对其进行表征。之后，采用静电纺丝溶胶-凝胶工艺制备了纳米纤维束，并通过SEM和拉伸试验对其进行表征。基于单因素方差分析（ANOVA）和事后Tukey HSD进行统计优化的结果表明，浓度为17%时可获得生产率较高（1.39±0.15mg/min）、拉伸比（9.0±1.2）和拉伸强度（29.64±7.40MPa）的纳米纤维束。最后，通过差示扫描量热法（DSC）进行了热表征，发现与PA 6/66粒料和纳米纤维束相比，纳米纤维中的熔点和玻璃化转变温度有所降低。
