Obtención de una superficie hielófoba empleando el método Sol-Gel sin fluoruros sobre pinturas comerciales de poliuretano

• Main Authors: CARMONA TEJERO, Noemí, CALVO DEL VALLE, Silvia, RODRIGUEZ GUDE, María, CARRENO PUERTAS, Francisco, RODRIGUEZ DE LA FUENTE, Oscar
• Format: Patent
• Language: Spanish
• Published: 29.06.2020
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention relates to the production of an icephobic surface, using the sol-gel method without fluorides, on commercial polyurethane paints and describes a new method for preparing a coating having excellent icephobic characteristics. The method is simple, easy to scale, uses low-cost raw materials and can be applied to commercial polyurethane-based paints. The method comprises preparing a sol-gel that is deposited to form a heterogeneous film of drops on a smooth and homogeneous previous layer of commercial paint. The coating allows the adhesion strength of the ice to be reduced by up to 80%. The icephobic surfaces of this invention can be used to protect surfaces in various sectors, such as aeronautics, wind, energy or telecommunications, where other anti-ice systems would not be easily applicable.