Rheology and mechanical properties of compatibilized poly(lacticacid)/recycled ethylene vinyl acetate copolymer blend

In this research, recycled ethylene vinyl acetate copolymer (REVA) as toughness modifier was meltblended with PLA and the influence of ethylene methylacrylate glycidyl methacrylate terpolymer(EMAGMA) in the role of compatibilizer on the linear viscoelastic rheological behavior andmechanical properties of PLA/REVA blend was studied. Due to a major modification of themicrostructure as well as interfacial interactions between PLA and EVA phases, rheological behaviorof PLA/REVA blend changed from liquid-like to solid-like behavior in the presence of EMAGMA.These modifications induced by EMAGMA caused a considerable improvement in the toughness ofPLA/REVA blend, while for un-compatibilized PLA/REVA blend, it was even lower than pure PLA.

کلیدواژه ها:

Poly(lactic acid) ، recycled ethylene vinyl acetate copolymer ، Toughening ، Rheology ، compatibilization.