Recently, some strategies have been developed to improve the
chemical and mechanical stability of the superhydrophobic materials.
One strategy is enhancing the attachment between substrates
and low surface energy materials [11e13]. We have reported an
environmental durability and mechanical resistant superhydrophobic
cotton fabric for oil/water separation via in situ vapor
phase deposition [5]. Additionally, establishing the chemical bonds
between modified materials and fabrics is also considered a
serviceable method and has exhibited good improvement [14e16].
Another strategy is preparing easily repairable superhydrophobic
materials. A scratched surface can be easily repaired by deposition
of new material over the damage via a simple routine [8,17]. By
comparison, a more attractive approach to tackle low durability
problem is biomimetic self-healing without additional deposition
of hydrophobic component [21,22]. Based on the encapsulation of
the hydrophobic component in the pores of rough porous materials,
self-healing surfaces maintain long-term wetting stability by
gradual release of these hydrophobic small molecules to the
damaged surface [18e20]. Generally, the release of hydrophobic
molecules is usually induced via high humidity, temperature, and
pH changes. Sun et al. prepared a self-healing superhydrophobic
coating by chemical vapor deposition (CVD) of fluoroalkylsilane in