A Simple, One-Step Approach to Durable and Robust Superhydrophobic Textiles
A Simple, One-Step Approach to Durable and Robust Superhydrophobic Textiles
复制标题
DOI：
10.1002/adfm.200800755
复制
发表时间：
2008-11-24
影响因子：
19
通讯作者：
Seeger, Stefan
中科院分区：
文献类型：
--
作者：
Zimmermann, Jan;Reifler, Felix A.;Seeger, Stefan
超疏水纺织织物是通过简单的一步气相涂层工艺制备的，通过该工艺在单个纺织纤维上生长一层聚甲基倍半硅氧烷纳米纤维。成功地对11种天然和人造纤维织物进行了涂层，并用水脱落角技术对其超疏水性能进行了评价。对商业上相关的聚对苯二甲酸乙二醇酯织物的深入研究表明，它具有无与伦比的耐电离性和超疏水效应的稳定性。由于纳米纤维涂层在微观纤维织物上产生的特殊表面几何形状，涂层织物即使在完全浸泡在水中两个月后仍保持完全干燥，即使在重大载荷下与模拟摩擦伙伴的皮肤连续摩擦后仍保持超疏水性。此外，重要的纺织品参数，如拉伸强度、颜色和触觉不受有机硅纳米丝涂层的影响。除了简单的接触角测量之外，首次对超疏水织物的润湿性能进行了深入的表征，并对最重要的纺织参数进行了彻底的评估，这揭示了真正的应用潜力。
Superhydrophobic textile fabrics are prepared by a simple, one-step gas phase coating procedure by which a layer of polymethylsilsesquioxane nanofilaments is grown onto the individual textile fibers. A total of 11 textile fabrics made from natural and man made fibers are successfully coated and their superhydrophobic properties evaluated by the water shedding angle technique. A thorough investigation of the commercially relevant poly(ethylene terephthalate) fabric reveals an unparalleled Iona-term water resistance and stability of the superhydrophobic effect. Because of the special surface geometry generated by the nanoscopic, fibrous coating on the microscopic, fibrous textiles, the coated fabric remains completely dry even after two months of full immersion in water and stays superhydrophobic even after continuous rubbing with a skin simulating friction partner under significant load. Furthermore, important textile parameters such as tensile strength, color, and haptics are unaffected by the silicone nanofilament coating. For the first time, an in-depth characterization of the wetting properties, beyond simple contact angle measurements, as well as a thorough evaluation of the most important textile parameters is performed on a superhydrophobic fabric, which reveals a true potential for application.