Fabrication of multifunctional cotton fabric with “pompon mum” shaped
surface by ZIF-8 for applications in oil-water separation and anti-icing
Hua-Bin Yuan , Manman Zhao , Xue Lei , Desheng Sha , Tieling Xing *, Guoqiang Chen
College of Textile and Clothing Engineering, Jiangsu Engineering Research Center of Textile Dyeing and Printing for Energy Conservation, Discharge Reduction and Cleaner Production (ERC), Soochow University, Suzhou 215123, China
The application of metal organic framework materials (MOFs) in superhydrophobic modification has a broad prospect. In this work, a multifunctional flexible superhydrophobic cotton fabric (PSZDC) with no fluorine, high oil-water separation efficiency, and excellent anti-icing performance was prepared through the modification of cotton fabric by dopamine (DA), ZIF-8, stearic acid (SA) and polydimethylsiloxane (PDMS). SEM and 3D ultradepth of field stereo microscope results revealed the unique “pompon mum” shaped surface of PSZDC. ATR-FTIR, XRD, and XPS analyses confirmed the composition of the hydrophobic layer. PSZDC had a water contact angle of 165.4◦ and showed stability in mechanical robustness and chemical resistance tests. The oil-water separation efficiency of PSZDC was close to 100 %, and the permeation flux was as high as 36,000 (L⋅m- 2h- 1). PSZDC also exhibited excellent effect in anti-icing test, which was expected to be used as ice rescue suits and oil-water separation materials. In addition, this method was universal and repeatable, as evidenced by its application to four common fabrics: nylon-6, polyester, wool, and silk.
https://doi.org/10.1016/j.porgcoat.2023.108056