Thermal and mechanical properties of bio-nanocomposites reinforced by Luffa cylindrica cellulose nanocrystals

► Luffa cylindrica CNC reinforced PCL were prepared. ► Fully biodegradable high-performance nanocomposites were obtained. ► Detailed investigation of thermal and mechanical properties. ► Positive effect of the chemical surface modification of the nanoparticles. ► Chemical modification promotes the interfacial crystallization.