Synergistic effect in gamma‐irradiated poly(vinyl chloride) hard foils stabilized by plasticizer–stabilizer systems

摘要

AbstractChanges in transparency and color as well asGHClvalues of hard PVC foils exposed to gamma radiation were investigated while using different amounts of the stabilizers ethylene glycol bis‐β‐aminocrotonate (I), calcium/zinc laurate + epoxy compounds (II), and magnesium/zinc stearate + sorbitol + epoxy compounds (III), and plasticizers dioctyl phthalate (DOP) (IV), dioctyl sebacate (V), propylene glycol polyadipate + octyl alcohol composition (VI), and diisotridecyl phthalate (VII). A strong synergistic effect was observed in systems containing both plasticizer and stabilizer. Best results were obtained for the I + II + IV, I + II + V, and I + III + V sys