Mechanical properties of LDPE/ethylene-1-butene copolymer films crosslinked by radiation

In this study, ethylene-1-butene copolymer (EBP) was blended with LDPE to improve the mechanical properties of packaging materials. After they were irradiated by an electron beam, the materials' physical properties, such as tensile strength, elongation, modulus, peel strength, DSC, and DMA, were examined. The results showed that the addition of EBP to LDPE exerted significant effects on the mechanical properties, such as the tensile strength and peel strength. The addition of EBP led to a maximum increase in peel strength of similar to 430%. The addition of 10 similar to 25 wt% EBP in LDPE was sufficient to enhance the peel strength significantly.