Disposable medical protective clothing for 2019-nCoV mainly consists of stacked layers with nanopore films, polymer coated nonwoven fabrics and melt-blown nonwoven fabrics against anti-microbial and anti-liquid penetration. However, such structures lack moisture permeability and breathability leading to an uncomfortable, stuffy wearing experience. Here, we propose a novel medical protective clothing material with a superabsorbent layer to enhance moisture absorption. Poly(acrylic acid-co-acrylamide)/polyvinyl alcohol superabsorbent fibers (PAAAM/PVA fibers) were prepared via wet spinning. And the superabsorbent composite layer was stacked from PAAAM/PVA fibers, bamboo pulp fibers (BPF) and ethylene-propylene side by side fibers (ESF). The novel disposable medical protective composite fabric was obtained through gluing the superabsorbent layer to the inner surface of strong antistatic polypropylene nonwoven fabric. The resultant composite fabric possesses excellent absorption and retention capacity for sweat, up to 12.3 g/g and 63.8%, and a maximum hygroscopic rate of 1.04 g/h, higher than that of the conventional material (only 0.53 g/h). The moisture permeability of the novel material reached 12,638.5 g/(m² d), which was 307.6% of the conventional material. The novel material can effectively reduce the humidity inside the protective clothing and significantly improve the comfort of medical staff.

中文翻译：

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用于舒适一次性医用防护服的高吸水性纤维


针对2019-nCoV的一次性医用防护服主要由纳米孔薄膜、聚合物涂层无纺布和熔喷无纺布的叠层组成，抗微生物和抗液体渗透。然而，此类结构缺乏透湿性和透气性，导致穿着体验不舒服、闷热。在这里，我们提出了一种新型医用防护服材料，具有超吸收层以增强吸湿性。采用湿法纺丝制备了聚丙烯酸-丙烯酰胺/聚乙烯醇高吸水纤维（PAAAM/PVA纤维）。超吸水复合材料层由PAAAM/PVA纤维、竹浆纤维(BPF)和乙烯-丙烯并列纤维(ESF)堆叠而成。将高吸水层粘合在强抗静电聚丙烯无纺布的内表面上，得到新型一次性医用防护复合布。所得复合织物具有优异的汗液吸收和保留能力，高达12.3 g/g和63.8%，最大吸湿率为1.04 g/h，高于传统材料的吸湿率（仅0.53 g/h）。新型材料的透湿度达到12638.5 g/(m ² d)，是传统材料的307.6%。这种新型材料可以有效降低防护服内部的湿度，显着提高医护人员的舒适度。