Mechanical and Barrier Properties of LLDPE/Chitosan Blown Films forn Packaging

摘要

The blends of linear low-density polyethylene and chitosan were prepared by using a two-step melt-compounding process and then were made into blown films for packaging. LLDPE-g-MAH was used as compatilizer to enhance the dispersing effect of chitosan in the matrix. Fourier transform infrared spectra and scanning electron microscope images of the blown films confirmed that there were new amide bonds formed between chitosan and LLDPE-g-MAH. The mechanical and barrier properties of the LLDPE/chitos