Xie Yao, Tu Pengpeng, Xiao Yonghe, Li Xiaoyan, Ren Mingsheng, Cai Zaisheng, Xu Bi
National Engineering Research Center for Dyeing and Finishing of Textiles, College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China.
ACS Appl Mater Interfaces. 2023 Aug 23;15(33):40011-40021. doi: 10.1021/acsami.3c07352. Epub 2023 Aug 8.
The ability of a superhydrophobic fabric to stay dry and clean has aroused great interest in daily life. Especially, the development of an eco-friendly non-fluorinated water-repellent textile has become a hot topic in recent years. We present a green strategy to achieve self-cleaning textile by in situ deposition of zinc oxide (ZnO) nanoparticles on cotton with subsequent polydimethylsiloxane modification. The prepared cotton fabric exhibits superior water repellency with a water contact angle of 157°. Meanwhile, this superhydrophobic surface can easily be ruined by oil contaminants and then exhibit a decreased water contact angle of 0°. However, the oil-contaminated surface can recover its water repellency after being irradiated. After six cycles of contamination using oleic acid and successive photodegradation, the fabric surface remains superhydrophobic. The obtained superhydrophobic surface does not adversely affect the fabric's strength and air permeability. Therefore, the developed superhydrophobic cotton fabrics have the potential to be used in a variety of industrial scenarios and in daily life.
超疏水织物保持干爽清洁的能力在日常生活中引起了极大的兴趣。特别是，近年来开发一种环保型非氟化拒水纺织品已成为一个热门话题。我们提出了一种绿色策略，通过在棉花上原位沉积氧化锌（ZnO）纳米颗粒并随后进行聚二甲基硅氧烷改性来实现自清洁纺织品。制备的棉织物表现出优异的拒水性，水接触角为157°。同时，这种超疏水表面很容易被油污污染物破坏，然后水接触角降至0°。然而，被油污污染的表面在辐照后可以恢复其拒水性。在使用油酸进行六次污染循环和连续光降解后，织物表面仍保持超疏水。所获得的超疏水表面不会对织物的强度和透气性产生不利影响。因此，开发的超疏水棉织物有潜力用于各种工业场景和日常生活中。
