Thermal and Mechanical Effects on Silicone (De) Intercalation in Pressure Sensitive Adhesive

— The adhesion layer integrity of a polyamide-polyacrylate system as a function of thermal and mechanical treatment are explored by looking into the interaction/de-intercalation. Thermal treatment induced the intercalation of silicone into the adhesive layer, which is affected by the temperature and duration of the treatment. The mechanical treatment resulted in the de-intercalation of the silicone strands. These results suggest the mobility of the silicone strands affects the integrity of the polyamide-polyacrylate adhesion joint, and the preferential interaction of the silicone to the polyamide surface at room temperature and to the polyacrylate adhesive at elevated temperature.