Effect of plasma pretreatment on adhesion and mechanical properties of UV-curable coatings on plastics

▶ Plasma treatment used to activate surface of polycarbonate and polymethylmethacrylate before deposition of sol-gel coatings ▶ Degree of surface activation is dependant on substrate and gets deactivated with time ▶ Plasma treatment improved the adhesion of sol-gel coatings on PC and PMMA substrates ▶ Improved mechanical properties in terms of scratch and abrasion resistance after plasma treatment.