Fig. 7
Representative microscope picture of the fracture surface after centrifugal adhesion test for the release agent 60 BR (sample 02-03) without plasma pre-treatment (left) and with plasma pre-treatment (right). Shown is the stamp side of the fracture surface; the left picture shows 100% adhesive failure (ADH) as the turquoise-colored adhesive is clearly visible over the whole stamp surface; the right picture shows a failure in the laminate characterized by light fibre tear (LFT); fibres from the substrate are visible on about 50% of the surface