The temperature dependence of wettability: Hexadecane on a fluoropolymer

Abstract

It is often assumed that raising the temperature of a system increases its wettability. The contact angles of hexadecane on a fluoropolymer were measured over a 130°C. temperature range. The advancing angle was found to be independent of temperature and the receding angles increased slightly with temperature. It is postulated that large temperature effects indicate specific interactions such as adsorption or desorption.