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Durable antibacterial cotton fabric imitating skin wet management with synchronous liquid gating and directional liquid transfer
Industrial Crops and Products ( IF 5.9 ) Pub Date : 2022-05-10 , DOI: 10.1016/j.indcrop.2022.114994
Jianhua Ma , Jia-Horng Lin , Yulei Feng , Xiaohua Huang , Shan Chi , Yanming Liu , Ching-Wen Lou , Ting Dong

Antibacterial textiles that repel external liquids while synchronously transport internal sweat to keep comfort moisture balance are desirable. However, very limited success has been achieved to construct such textiles. Herein, a facile approach to create durable antibacterial cotton fabric with skin-like wet management was proposed. The first step involved several minutes (< 5) dip-coating subsequently with PA and Cu2+, which afforded Cu enriched surfaces endowing highly efficient (99.95% in 2 h for E. coli, 99.99% in 2 h for S. aureus) and durable antibacterial activity (> 99.95% after 50 times washing treatment). The following step further paved a way of skin-like wet management by the construction of dotted wetting gradient on superhydrophobic background via transient exposure to a vapor mixture of methylchlorosilanes and successive patterned plasma etching. The liquid could only be transferred in the direction of the wetting gradient and was stopped when the fabric was faced against it, featuring synchronous antifouling and unidirectional water transmission so as to avoid wet clicking of the fabric with high air permeability even in a wet environment. This study opens a way for developing advanced fabrics which voluntarily release human sweat and meanwhile restrain microbial development obviating bacterial infection.



中文翻译:

具有同步液体门控和定向液体转移的耐用抗菌棉织物模拟皮肤湿度管理

可排斥外部液体同时同步输送内部汗液以保持舒适水分平衡的抗菌纺织品是可取的。然而,在构建此类纺织品方面取得的成功非常有限。在此,提出了一种简便的方法来制造具有类皮肤湿管理的耐用抗菌棉织物。第一步包括几分钟 (< 5) 浸涂,随后用 PA 和 Cu 2+浸涂,这提供了富铜的表面,赋予了高效(大肠杆菌在 2 小时内为 99.95%,金黄色葡萄球菌在 2 小时内为 99.99%) 和持久的抗菌活性(50 次洗涤处理后 > 99.95%)。接下来的步骤通过瞬时暴露于甲基氯硅烷的蒸气混合物和连续的图案化等离子体蚀刻,在超疏水背景上构建点润湿梯度,进一步铺平了类似皮肤的湿管理方式。液体只能沿润湿梯度方向转移,并在织物对面时停止,具有同步防污和单向透水的特点,即使在潮湿环境中也能避免高透气性织物的湿点击。这项研究为开发能够自动释放人体汗液并同时抑制微生物发育、避免细菌感染的先进织物开辟了一条道路。

更新日期:2022-05-11
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