Antifog (AF) agents are chemicals that prevent the condensation of water as small droplets on hydrophobic surfaces which resemble fog. Antifogs function by minimizing the water surface energy, thus resulting in a continuous film of water rather than single droplets. Inside a greenhouse, the temperature and humidity are usually higher than the outside temperature and fog will thus appear on the inner surface of the PE film.
In the present work, a new method of controlled migration of AF is described, by grafting AF molecules to the surface of sub-micron inorganic particles. Glycerides and fatty acids are used as AF. The hybrid materials obtained are characterized and used as additives in thin PE transparent films, and the film properties are characterized.
