Inhibition of adhesion of CaCO 3 scale by polydopamine/polytetrafluoroethylene coating with stability and anticorrosion properties

Reduction of calcium carbonate (CaCO3) scale formation on the equipment surface is essential in a wide variety industrial fields. In this work, polydopamine/polytetrafluoroethylene (PDA/PTFE) coating prepared by simple immersion stainless steel (SS) surfaces was developed to suppress CaCO3 adhesion. The PDA/PTFE-coated showed higher hydrophobicity (water contact angle = 133.50°) and lower free energy (11.92 mN/m) than stainless-steel surface. inhibiting rate coated up 76.8% after 12-hour solution comparison with untreated SS. More bubbles were observed surfaces, number increased increasing temperature leading less area for As result, PDA/PTFE have antiscale ability at temperature. Furthermore, stripping electrochemical corrosion tests demonstrated that has better stability anticorrosion ability. superior properties potential application long-lasting reduction formation.