Influence of E‐beam irradiation on compounds from linear low density polyethylene and thermoplastic vulcanized rubber consisting of a polypropylene and ethylene propylene diene monomer rubber phase

Linear low-density polyethylene (LLDPE) crosslinks under irradiation in the range of up to 250 kGy. Crosslinking leads better chemical and thermal resistance but causes reduction mechanical performance. To counter this reduction, compounds LLDPE with thermoplastic elastomers (TPV) were made. Specimens irradiated doses reaching from 99 231 Gel content shows a decrease around 12% for 20 wt% TPV compared pure LLDPE. It is also found that containing 10 experience 4% higher gel than predicted. For amounts elongation at break increases 689% 769% tensile strength decreases 31.9 30.5 MPa. Under irradiation, trend lower elongations strengths observed. Elongation decreased 200% 5 MPa irradiation. Thermal analysis showed while melting temperature decreases, its crystallinity first rises 165 kGy before decreasing. Infrared spectroscopy was used identify changes structure, where evidence surface oxidation all