纳米纤维
材料科学
聚乙烯醇
乙烯醇
静电纺丝
扫描电子显微镜
傅里叶变换红外光谱
体积流量
形态学(生物学)
化学工程
复合材料
高分子化学
纳米技术
聚合物
物理
量子力学
生物
工程类
遗传学
作者
Amnah Asiri,Rania Hussien Al‐Ashwal,Mohd Helmi Sani,Syafiqah Saidin
标识
DOI:10.1088/1742-6596/1372/1/012035
摘要
Abstract Nanofibers have obtained considerable interest for use in various applications. Polyvinyl alcohol (PVA) has been used to achieve many benefits for diverse pharmaceutical and biomedical applications. We investigated in this study the effects of applied voltage, needle diameter, and flow rate on morphologies of PVA nanofibers. A constant volume of the feeding solutions delivered to the needle at a flow rate of 1 and 2 mL/h with high potentials of voltage was applied as they exit the needle. After that, the electrospun fibers collected on the ground connected aluminum foil. The electrical conductivity measurements of feeding solutions performed at room temperature. Characterization of the PVA nanofibers conducted using scanning electron microscopy (SEM) and attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR). The obtained nanofibers SEM images show beads when using the flow rate at 1 mL/h, whereas increasing the voltage and the flow rate improved the morphology of the nanofibers to uniform without beads. The FTIR results show that O-H and C-O bands are the main attributing to the chemical functionality of PVA nanofibers. As a conclusion, the high voltage and flow rate considered as the most critical parameters that impacted on PVA nanofibers morphology.
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