Self-Healing Surface Hydrophobicity
by Consecutive
Release of Hydrophobic Molecules from Mesoporous Silica
- Publication date
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Abstract
The paper reports a novel approach to achieve self-healing
surface
hydrophobicity. Mesoporous silica is used as the reservoir for hydrophobic
molecules, i.e., octadecylamine (ODA), that can release and refresh
the surface hydrophobicity consecutively. A polymdopamine layer is
used to further encapsulate silica–ODA, providing a reactive
layer, governing release of the underlying ODA, and improving the
dispersivity of silica nanoparticles in bulk resin. The approach arrives
at self-healing (super)hydrophobicity without using any fluoro-containing
compounds