Měření povrchových energií syntetických polymerů - vliv povrchových modifikací

Theoretical part of this work contains a review focused on contact angle determination and calculation of surface free energies of solids according to various mathematical models. In the experimental part, contact angles of synthetic polymers PC, PMMA, CR39 and Trivex were measured and surface free energy of these materials was evaluated. Selection of the mathematical model and the combination of testing liquids were found to have great influ-ence on the resultant surface free energy value of the solid. Owens-Wendt-Rabel-Kaelble model (for the combination of testing liquids water - glycerol - ethyleneglycol), equation of state and Owens-Wendt model (for the combination of testing liquids water - ethylene-glycol and water - glycerol) were selected as the most suitable methods.