Industrially viable method for producing all-polymer hydrophobic surfaces apt for slippery liquid-infused substrates

For the sake of simplicity and scalability, we report a methodology to build a superhydrophobic textured upper layer on PVDF/PMMA blend films. The methodology is very easy to implement and does not need any fluorination as last step. In addition, it has been proved that this textured layer works as substrate for lubricant infused surfaces, with outstanding slippery properties. Knowing the importance of controlling the roughness profile to succeed in suitable wetting properties, we perform a thorough study of the roughness parameters by optical profilometry and establish their influence on the final wetting and slippery properties.

Automated summary

The methodology for building a superhydrophobic textured upper layer on PVDF/PMMA blend films was reported, showing outstanding slippery properties for lubricant infused surfaces. A thorough study of roughness parameters by optical profilometry was conducted to establish their influence on final wetting and slippery properties.