Study on mechanical properties of poly(lactic acid)/cellulose nanocrystals(PLA/CNC) bio-nanocomposites

PLA/CNCbio-nanocomposites were compatibilized using a diepoxy functional material (DGEBA).While the PLA anduncompatibilized PLA/CNC samples showed unfavorable mechanical properties.Compatibilization led to improved tensile and impact properties. ThecompatibilizedPLA/CNC۰.۵%/DG۰.۲۵% sample exhibited ۸.۲ and ۶.۷ times higherimpact and tensile toughnessrespectively, representative of simultaneousimproved stiffness-toughness, rarely reported in theliterature. It wasdemonstrated that fibrillation of PLA matrix is the main toughening mechanismofthe compatibilized nanocomposites

کلیدواژه ها:

Polylactic acid (PLA) ، Cellulose Nanocrystals (CNC) ، Compatibilization ، Toughening