Superhydrophobic surfaces possess susceptibility towards mechanical and chemical damages as well as oil fouling, which limits their widespread use in practical applications. Here, we demonstrate a straightforward approach to fabricate tunable bulk material with robust and renewable superhydrophobicity by in-situ loading of interconnected surface-wrinkled microparticles. The bulk material shows mechanochemically robust superhydrophobicity across its whole 3D volume, features renewable superhydrophobicity after extremely chemical corrosion, and could regenerate its water repellency after oil contamination. The bulk material also features ultrahigh efficiency (∼ 98%) in oil-water mixtures separation, due to its selective oil absorption capability from water. Notably, the mechanical performances, microstructures and density of the bulk material can be adjusted on demand by simply changing the amount of loaded microparticles. Compared to the pristine commercial melamine-formaldehyde based porous substrate (MFPS), the achieved bulk material shows up to ∼ 230 folds increase in Young’s modulus, ∼ 145 folds increase in flexure stress and ∼ 25 folds increase in tensile stress. This strategy features great potential for designing lightweight structural materials with robust waterproof functionality as well as materials with efficient oil recovery capability from wastewater.

超疏水表面对机械和化学损伤以及油垢具有敏感性，这限制了它们在实际应用中的广泛使用。在这里，我们演示了一种通过相互连接的表面起皱微粒的原位负载来制造具有鲁棒性和可再生超疏水性的​​可调散装材料的简单方法。散装材料在其整个3D体积中显示出机械化学稳健的超疏水性，在极度化学腐蚀后具有可再生的超疏水性，并且在油污染后可以再生其疏水性。由于其从水中的选择性吸油能力，散装物料在油水混合物分离中的效率也很高（约98％）。值得注意的是，机械性能 只需更改负载微粒的数量，即可根据需要调整散装材料的微观结构和密度。与原始的商用三聚氰胺-甲醛基多孔基材（MFPS）相比，所获得的块状材料的杨氏模量提高了约230倍，弯曲应力提高了145倍，拉伸应力提高了25倍。该策略在设计具有坚固防水功能的轻质结构材料以及从废水中有效采油的材料方面具有巨大潜力。弯曲应力增加约145倍，拉伸应力增加约25倍。该策略在设计具有坚固防水功能的轻质结构材料以及从废水中有效采油的材料方面具有巨大潜力。弯曲应力增加约145倍，拉伸应力增加约25倍。该策略在设计具有坚固防水功能的轻质结构材料以及从废水中有效采油的材料方面具有巨大潜力。