静电纺丝法生产苯乙烯-[乙烯-(乙烯-丙烯)]-苯乙烯嵌段共聚物(SEEPS)微纤维

O. Toprakci, M. S. Cetin, H. A. Karahan Toprakci
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引用次数: 1

摘要

热塑性弹性体纤维具有轻质、柔韧性、弹性等优点。苯乙烯-[乙烯-(乙烯-丙烯)]-苯乙烯(SEEPS)是基于苯乙烯嵌段共聚物的热塑性弹性体,它可以作为基体、增容剂、改性剂或粘合剂用于许多用途。具有良好的抗氧化剂、耐风化、耐老化性能,可在各种条件下使用。采用电纺丝法制备了SEEPS嵌段共聚物纤维。本研究在文献中首次对SEEPS嵌段共聚物的静电纺丝进行了研究。采用不同的纺丝溶液,通过改变纺丝条件,对纺丝工艺进行了优化。用光学显微镜分析纤维形态,绘制纤维直径分布直方图。为了了解聚合物浓度对静电纺丝的影响,测定了纺丝液的粘度。虽然静电纺丝条件对可纺性至关重要,但溶液浓度和粘度是获得柔性SEEPS基纤维非织造垫的最重要因素。
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Production of Styrene-[Ethylene-(Ethylene-Propylene)]-Styrene Block Copolymer (SEEPS) Microfibers by Electrospinning
Thermoplastic elastomer-based fibers have many advantages including lightness, flexibility, resilience. Styrene-[ethylene-(ethylene-propylene)]-styrene (SEEPS) is a styrenic block copolymer based thermoplastic elastomer and it can be used for many applications with many functions as a matrix, compatibilizer, modifier or adhesive. It has good resistance to oxidizing agents, weathering, aging, and it can be used under various conditions. In this study, SEEPS block copolymer fibers were electrospun. This study is the first study about the electrospinning of SEEPS block copolymer in the literature. Various spinning solutions were used, and process was optimized by changing the electrospinning conditions. Fiber morphology was analyzed by an optical microscope and fiber diameter distribution histograms were drawn. In order to understand the effects of polymer concentration on electrospinning, viscosity of the spinning solutions was measured. Although electrospinning conditions were found to be critical in terms of spinnability, solution concentration and viscosity were the most significant factors for obtaining flexible SEEPS based fibrous nonwoven mats.
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