Constructing Superhydrophobicity by Self‐Assembly of SiO 2 @Polydopamine Core‐Shell Nanospheres with Robust Oil‐Water Separation Efficiency and Anti‐Corrosion Performance

Abstract Vulnerable robustness of superhydrophobic materials have mightily hindered their practical applications. Herein, a controllable and effective strategy is demonstrated for constructing robust superhydrophobicity with aqueous hydrophobic interaction driving self‐assembly (HIDS), using polydopamine (PDA) as the binder and SiO 2 particles as the nano‐sized structures to enable low‐adhesive property. The proposed strategy realizes the rapid interfacial assembly of PDA by manipulating the wetting properties of SiO 2 @PDA core‐shell particles with hydrophobic modifier. The polyurethane (PU) sponges are facilely rendered superhydrophobic with remarkable robustness, stemming from the excellent adherence of…

• NN
  National Natural Science Foundation of China

  Awards: U21A2052, 52171175, 51901062
• NS
  Natural Science Foundation of Zhejiang Province

  Awards: 2021C01023, LY22E010002