期刊
SURFACE & COATINGS TECHNOLOGY
卷 360, 期 -, 页码 318-328出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2018.12.094
关键词
Superhydrophobic coating; Copper stearate; Chemical stability; Mechanical durability; Oil/water separation
资金
- National Natural Science Foundation of China [21376099, 21546002, 21878115]
A durable and stable polydimethylsiloxane (PDMS) - copper stearate (CuSA(2)) superhydrophobic coating has been fabricated on cotton fabric by a simple in-situ growth and dip-coating method. The surface morphology, roughness and composition of the superhydrophobic coating were analyzed by SEM, 3D optical profiler and FT-IR, respectively. The prepared cotton fabric (C-fabric) showed good superhydrophobicity (WCA similar to 158 degrees) and a satisfactory chemical stability against strong acidic/alkali solution and various solvents. The C-fabric retained superhydrophobicity with WCA above 150 degrees after 24 h ultraviolet (UV) irradiation, 10 times of mechanical abrasion and 12 h ultra-sonication treatment. The obtained C-fabric also possessed anti-fouling property for various common household liquids (coke, juice, tea, ink, coffee and milk) with CA above 144 degrees. Furthermore, the C-fabric can be applied to the separation of oil/water mixture with separation efficiency of more than 96%.
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