PFAS substitutions for functional coatings with water and oil repellent properties

 
Amongst others, PFAS are/were used in coating formulations to create hydrophobic and oleophobic properties, leading to water and ice repellent, anti-contamination, and easy-to-clean surfaces. Additionally, tribological properties can be achieved . The presentation summarizes test results for PFAS-based coatings and compares the properties with PFAS-free approaches . The formulation of PFAS-free substitutes is tailored specifically to the application. Emphasis is placed on roughness and contact angle measurements as basic and easy to access evaluation criteria. Results shall give an impression about the potentials of substitutes and identify gaps and future needs for developments.