| 초록 |
In this study, poly(lactic acid) (PLA) was blended with bacterial nanocellulose (BNC) using the solvent casting method, and then the thermal and mechanical properties of blends were investigated to establish the better biodegradability with reinforced mechanical properties. Although PLA is well known as a biodegradable polymer, such properties as the slow degradation rate, brittleness, and thermal instability are not satisfactory to directly apply to the commercially available product. To address these issues, BNCs are added to the PLAs because former could make up for the weak points of latter. First, PLA and BNC were dissolved in N, N-dimethylformamide and tetrabutylammonium hydroxide/dimethyl sulfoxide, respectively. Then, two polymer solutions were mixed at the different composition followed by drying overnight. We will characterize the blends with the differential scanning calorimetry (DSC), X-ray diffraction, and mechanical analysis. |
