| 초록 |
Recently, nanocellulose has received a lot of attention as the most abundant eco-friendly reinforcement for replacing a portion of petroleum-based plastic with a sustainable biomass material and improving polymer mechanical characteristics. However, due to the intrinsic hydrophilicity originated from numerous hydroxyl groups on the surface of the nanocellulose, a complete reinforcement is limited by the poor dispersion in a common hydrophobic matrix. Here, we prepared modified nanocellulose by grafting small hydrophobic molecules onto the surface to increase interfacial adhesion with hydrophobic substrates. By confirming that the surface-modified nanocellulose can exhibit excellent dispersibility in common organic solvents, they were incorporated into polymer films by solution casting. The tensile modulus and tensile strength after the substitution showed clear evidence of the reinforcement compared to the composites with the unmodified. |
