Minimizing Aviation Ice Adhesion with Hydrophobic Aerogel Surfaces

Ice accumulation on aircraft surfaces poses a significant risk to flight safety and operational efficiency. Standard de-icing procedures are physically demanding and require the use of chemical agents. This study evaluates the use of a hydrophobic aerogel film on the aircraft body to reduce chemical use and ease the physical demands of ice removal. Composed of Polyvinyl Butyral (PVB) and hydrophobic silica aerogel powder, the film acts as a passive anti-icing solution. Experimentation involved balancing the ratio of the PVB and aerogel to find the most hydrophobic and structurally sound solution. Contact angle measurements of the fabricated sheets showed consistent values of around 120°, with a few passing 130°. Cold weather testing revealed that the films are both robust and effective at decreasing ice adhesion strength. This project suggests that aerogel-based films can offer an innovative solution to mitigating buildup and supporting easier removal of ice from aviation structures.