“…The serrated impact energy is smaller than the uniaxial impact resistance 26 . This is the effort needed for crack nucleation inside the un-notched sample versus the toothed test piece, in which the cut-out defines the fracture as the dominant pressure-focused area, as well as the fracture toughness tending to reflect the necessary energy again for spreading a typically known fracture 27 . The incIncludingmpatibilizer reduces the notched toughness of an old copy paper composite coating and thus the amount of the compatibilizer available for uptake, but t. Still, the increase again for un-notched samples 28 .…”