3.3 SEM analysis of the films incorporated with Eos
Cross section of the LDPE/EVA film without EOs had smooth surface with a few lines of wrinkles because of cryofracture process as Fig. 3a. Whereas, grainy and porous surface was found on the LDPE/EVA films incorporated with EOs (Fig. 3b-d). The addition of any EOs might cause the discontinuous phase in polymer matrix. Additionally, the evaporation of EOs could lead to the appearances of porous surface.