Sheraz Mahshab, Choi Byul, Kim Juran
Advanced Textile R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan 15588, Republic of Korea.
HYU-KITECH Joint Department, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea.
Polymers (Basel). 2023 Oct 12;15(20):4065. doi: 10.3390/polym15204065.
Superhydrophobic coatings have attracted substantial attention owing to their potential application in various industries. Conventional textiles used in daily life are prone to staining with water and household liquids, necessitating the development of water-repellent and stain-resistant coatings. In this study, we fabricated a highly water-repellent superhydrophobic PET fabric by using an eco-friendly water-based coating process. Fluorine-free octadecyltrichlorosilane (OTS) solutions with various wt.% of hollow silica (HS) nanoparticles were used to produce a superhydrophobic surface via a facile dip coating method. Our findings revealed that the incorporation of HS nanoparticles substantially increased the water contact angle, with higher concentrations resulting in enhanced water repellency and increased surface roughness. The treated fabrics had a remarkable water contact angle of 152.4° ± 0.8°, demonstrating their superhydrophobic fiber surface. In addition, the durability of these superhydrophobic properties was investigated via a laundry procedure, which showed that the fabrics maintained their water repellency even after 20 laundering cycles. EDX and XRD analyses confirmed that the morphological evaluations did not reveal any substantial structural alterations. Significantly, the fibers maintained their strength and durability throughout the testing, enduring only minor hollow SiO nanoparticle loss. This eco-friendly and cost-effective method holds great potential for application in apparel and other industries, offering an effective solution to resist water stains and improve performance in various contexts.
超疏水涂层因其在各个行业的潜在应用而备受关注。日常生活中使用的传统纺织品容易被水和家用液体弄脏，因此需要开发防水防污涂层。在本研究中，我们采用环保的水基涂层工艺制备了一种高度防水的超疏水聚酯纤维织物。使用含有不同重量百分比空心二氧化硅（HS）纳米颗粒的无氟十八烷基三氯硅烷（OTS）溶液，通过简便的浸涂法制备超疏水表面。我们的研究结果表明，HS纳米颗粒的加入显著提高了水接触角，较高的浓度导致疏水性增强和表面粗糙度增加。处理后的织物具有152.4°±0.8°的显著水接触角，表明其具有超疏水纤维表面。此外，通过洗涤程序研究了这些超疏水性能的耐久性，结果表明织物即使经过20次洗涤循环仍保持其疏水性。能谱分析（EDX）和X射线衍射分析（XRD）证实，形态学评估未发现任何实质性的结构变化。值得注意的是，在整个测试过程中，纤维保持了其强度和耐久性，仅损失了少量的空心SiO纳米颗粒。这种环保且经济高效的方法在服装和其他行业具有巨大的应用潜力，为抵抗水渍和在各种环境中提高性能提供了有效的解决方案。
