Rational design of self-cleaning superhydrophobic coating with outstanding abrasion resistance and weatherability: Towards highly efficient oil-water separation and anti-corrosion application
发布时间：2024-01-19点击次数：
- 关键字：FABRICATION; SURFACES; NANOPARTICLES; TEMPERATURE
- 摘要：The importance of superhydrophobic coating in modern industries cannot be overstated. However, conventional superhydrophobic coatings are challenged by poor mechanical stability, single functionality, and toxic content (fluorine element), which pose a challenge to the large-scale use of superhydrophobic coatings. Herein, a MOF-based superhydrophobic coating is proposed, which is constructed by introducing self-designed small-molecule resins combined with modified ZIF-8 particles through a one-step spraying method. Notably, the coating exhibits excellent superhydrophobicity (CA = 169.05 degrees, SA = 3.7 degrees), mechanical stability (CA > 155 degrees after 200 cm of wear), high oil-water separation efficiencies (for oil-water mixture separation efficiency up to 98.57 %) and satisfactory anti-corrosion property. The superior performance of the coating comes from the layer-by-layer structure formed by the gamma-AP resin-coated ZIF-8 particles after curing, which the silicone in the resin forms a dense cross-linked network on the surface of the coating. In summary, ZIF-8/HDTMS/gamma-AP coating not only has the advantages of a simple preparation process, wide application range, and no secondary pollution but also has excellent mechanical properties, high oil-water separation efficiency, and satisfactory corrosion resistance, which can provide new ideas to expand the application scope of superhydrophobic coating.
- 卷号：179
- 期号：-
- 是否译文：否