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首页> 外文期刊>The Journal of the Textile Institute >Optimization of the process variables for electrospinning of poly(ethylene oxide)-loaded hydroxypropyl-β-cyclodextrin nanofibres
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Optimization of the process variables for electrospinning of poly(ethylene oxide)-loaded hydroxypropyl-β-cyclodextrin nanofibres

机译：负载聚环氧乙烷的羟丙基-β-环糊精纳米纤维静电纺丝工艺变量的优化

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摘要

Electrospinning is a versatile method for making nanofibres from polymer solution. Hydroxypropyl--cyclodextrin (HP--CD) is electrospun from aqueous solution by blending with non-toxic, biocompatible, synthetic polymer poly(ethylene oxide) (PEO). The aqueous solutions containing 70:30 HP--CD/PEO polymer blend with 8wt.% concentration were electrospun to study the effects of process parameters on fibre morphology. Electrospinning was carried out at variable feed rate, applied voltage and working distance to see the effects on process stability and fibre diameter. Scanning electron microscope images showed that increasing feed rate, applied voltage and working distance promote bead formation in the fibre. The average diameter of the nanofibres was measured using ImageJ software. It was observed that the fibre diameter increased with increasing the feed rate and applied voltage. In contrast, the diameter of the fibres decreased with increasing the working distance up to a certain level. Further increase of the working distance produced beaded fibres. The ultimate objective of this study was optimize the electrospinning parameters to obtain bead-free HP--CD/PEO nanofibres. The results revealed that a feed rate of 0.5-1.0ml/h, a working distance of 10-14cm and an applied voltage of 5-7kV have been found to produce smooth PEO loaded HP--CD nanofibres.
机译：电纺丝是一种由聚合物溶液制备纳米纤维的通用方法。羟丙基环糊精（HP--CD）通过与无毒，生物相容性，合成聚合物聚环氧乙烷（PEO）混合从水溶液中静电纺丝而成。静电纺丝含有浓度为8wt。％的70:30 HP-CD / PEO聚合物共混物的水溶液，以研究工艺参数对纤维形态的影响。以可变的进料速度，施加的电压和工作距离进行静电纺丝，以观察对工艺稳定性和纤维直径的影响。扫描电子显微镜图像显示，增加进料速度，施加电压和工作距离会促进纤维中的磁珠形成。使用ImageJ软件测量纳米纤维的平均直径。观察到纤维直径随着进料速率和施加电压的增加而增加。相反，纤维的直径随着工作距离的增加而减小到一定水平。工作距离的进一步增加产生了串珠纤维。这项研究的最终目的是优化电纺丝参数，以获得不含珠子的HP-CD / PEO纳米纤维。结果表明，进料速度为0.5-1.0ml / h，工作距离为10-14cm，施加电压为5-7kV，可生产出光滑的PEO负载HP-CD纳米纤维。

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