Lubricated or liquid infused surfaces (LIS) have become an exciting emerging class of self-cleaning and “slippery” surfaces, created by infusing a textured surface with a liquid or lubricant. However, they are facing the challenges such as high production cost and fluorinated compounds involvements. In our work, we have demonstrated by grafting low surface tension polydimethylsiloxane (PDMS) rubber layer on the surface as a reservoir, LIS can also be fabricated. The good chemical affinity between PDMS and silicone oil is responsible for this excellent self-cleaning slippery surface. This surface can maintain its water repellency property under extreme conditions such as high temperature and water steam. Ice formation is delayed and the mobility of the condensed water droplets is promoted on this surface as compared to the analogous surface without the tethered PDMS chain layer.

Robust and durable lubricant coating surfaces with excellent liquid-repellent property

254th National Meeting (2017)

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