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首页> 外文期刊>Journal of Polymers and the Environment >Acetone, a Sustainable Solvent for Electrospinning Poly(ε-Caprolactone) Fibres: Effect of Varying Parameters and Solution Concentrations on Fibre Diameter
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Acetone, a Sustainable Solvent for Electrospinning Poly(ε-Caprolactone) Fibres: Effect of Varying Parameters and Solution Concentrations on Fibre Diameter

机译：丙酮，一种静电纺聚（ε-己内酯）纤维的可持续溶剂：各种参数和溶液浓度对纤维直径的影响

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摘要

Electrospinning commonly requires a solvent carrier to transform polymer materials from one solid form to another. The types of solvents are often classed as toxic and hazardous and have potential long-term impacts on the environment and the health of the user. Acetone is a sustainable and non-toxic solvent, but has received limited use within the electrospinning sector-particularly for bio-compatible polymers, such as poly(fi-caprolactone) (PCL). This paper documents the ability to electrospin PCL dissolved in acetone and the effects of spinning parameters on the morphology and diameter of the collected fibres. Depending on the end use of the collected fibres it is important to understand how the parameters interplay and affect fibre morphology and diameter, especially if fibres of a specific form and size are required, for example, to mimic the extracellular matrix of tissues. This paper investigates the effects of flow-rate (0.05 and 0.1 ml/min), voltage (15 and 25 kV), distance (5 and 10 cm) and voltage-distance combined, on different concentrations of poly(ε-caprolac-tone)/acetone solutions (5, 7.5 and 10 %w/v) in terms of fibre morphology and fibre diameter. Overall, solutions of PCL dissolved in acetone could be electrospun and, in general, the trends observed with altering spinning parameters followed those documented for other polymer/ solvent systems. This calls for the increased use of less hazardous and more sustainable solvents, such as acetone, for electrospinning applications.
机译：电纺丝通常需要溶剂载体以将聚合物材料从一种固体形式转变为另一种固体形式。溶剂的类型通常被分类为有毒和有害物质，会对环境和用户的健康产生长期的潜在影响。丙酮是一种可持续且无毒的溶剂，但在静电纺丝领域的用途有限，特别是对于生物相容性聚合物，例如聚（己内酯）（PCL）。本文记录了静电纺丝溶解在丙酮中的PCL的能力以及纺丝参数对收集的纤维的形态和直径的影响。根据收集到的纤维的最终用途，重要的是要了解参数如何相互作用并影响纤维的形态和直径，尤其是在需要特定形式和尺寸的纤维（例如，模拟组织的细胞外基质）的情况下。本文研究了流速（0.05和0.1 ml / min），电压（15和25 kV），距离（5和10 cm）以及电压-距离组合对不同浓度的聚（ε-己内酯）浓度的影响）/丙酮溶液（5％，7.5和10％w / v）的纤维形态和纤维直径。总体而言，可以将PCL溶解在丙酮中的溶液进行电纺丝，通常，改变纺丝参数后观察到的趋势遵循其他聚合物/溶剂体系所记录的趋势。这就要求在静电纺丝应用中增加使用危害较小，更具可持续性的溶剂（例如丙酮）。

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