Abstract A high liquid-transportation capability is required for high-performance moisture-functional wound-dressing fabrics. However, simultaneously accelerating liquid wetting and penetration aspects remains challenging. Herein, we fabricated a fluffy polypropylene–polyethylene glycol (PP-PEG) fabric with branched micro- and nanofiber via an environmentally friendly and cost-effective melt-blowing technique. The introduction of incompatible PEG reduced the viscosity of the PP melt and decreased the dimension of fibers; thus, a branched micro- and nanofibrous structure was obtained. By incorporating the amount of 15 wt% PEG, the water content of the outer face increased from 70.3% to 270.6%. A fluffy structure in the fabric's thickness direction was achieved by tailoring the die-to-collector distance (DCD) during the melt-blowing process. The porosity increased from 87.1% to 90.1% with the DCD increased from 10 cm to 30 cm, which achieved a vertical penetration velocity of 7.02 cm/s at the water head of 90 mm. Moreover, micro- and nanofibrous morphology with the excellent mechanical properties and fine hydrolytic stability could enhance the water retention capacity that maintain the humidity of a microenvironment. This branched fluffy fabric with fast water-transportation capability is expected to be used in hygienic and medical fabric.

中文翻译：

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蓬松的聚丙烯-聚乙二醇织物具有分支的微米和纳米纤维结构，用于快速液体传输

摘要 高性能保湿功能伤口敷料织物需要具有较高的液体传输能力。然而，同时加速液体润湿和渗透方面仍然具有挑战性。在此，我们通过环保且具有成本效益的熔喷技术制造了一种具有支化微米和纳米纤维的蓬松聚丙烯-聚乙二醇（PP-PEG）织物。不相容PEG的引入降低了PP熔体的粘度，降低了纤维的尺寸；因此，获得了分支的微米和纳米纤维结构。通过掺入 15 wt% 的 PEG，外表面的水含量从 70.3% 增加到 270.6%。通过在熔喷过程中调整模具到收集器的距离 (DCD)，可以在织物的厚度方向上实现蓬松的结构。随着 DCD 从 10 cm 增加到 30 cm，孔隙率从 87.1% 增加到 90.1%，在 90 mm 的水头实现了 7.02 cm/s 的垂直穿透速度。此外，具有优异机械性能和良好水解稳定性的微米和纳米纤维形态可以增强保持微环境湿度的保水能力。这种具有快速输水能力的支化蓬松织物有望用于卫生和医疗织物。具有优异机械性能和良好水解稳定性的微米和纳米纤维形态可以增强保持微环境湿度的保水能力。这种具有快速输水能力的支化蓬松织物有望用于卫生和医疗织物。具有优异机械性能和良好水解稳定性的微米和纳米纤维形态可以增强保持微环境湿度的保水能力。这种具有快速输水能力的支化蓬松织物有望用于卫生和医疗织物。