Slippery lubricant-infused porous surfaces (SLIPS) can be used in a wide range of applications such as self-cleaning windows, anti-icing surfaces, anti-biofouling, and anti-corrosion coatings. For SLIPS surfaces to be used more widely in practical applications, it is critical to enhance the stability of lubricant layer, while maintaining scalable manufacturability and minimizing potentially negative environmental impacts. In this study, we describe a robust method for the fabrication of durable SLIPS by inducing the capillary rise infiltration of silicon oil into honeycomb-like micropatterns of ZnO nanowires (NWs), which exhibit self-cleaning and self-healing properties. The honeycomb-like micropatterns of ZnO NWs, which formed via a capillarity-driven coalescence of long nanowires during drying step, serve as the porous template for wicking and retaining of are used as porous substrates to the silicon oil through capillary force. The effects of nanowires orientation on the infiltration rate of silicon oil as well as the wetting and the mobility of water droplets are also investigated. The as-prepared SLIPS can exhibit self-healing properties against small surface damage due to the self-recovery property of the oil. This study presents a new way of using capillarity to create durable SLIPS for self-cleaning and self-repairing properties.

Durable lubricant-infused ZnO nanowire surfaces <i>via</i> capillary rise infiltration (CaRI)

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.

Durable lubricant-infused ZnO nanowire surfaces via capillary rise infiltration (CaRI)