| 초록 |
Poly(lactic acid) (PLA) is obtained through fermentation from sugar beet and corn starch, and is environmentally friendly, biodegradable in nature, excellent in properties, and good in heat processability. Therefore, PLA is being studied as a substitute for petroleum plastics that cause environmental pollution. Cellulose nanocrystal (CNC) is a material made by acid hydrolysis of cellulose fiber and has low density, excellent physical properties and environmentally friendly characteristics. In this study, PLA/CNC nanocomposites were made by melt-blending followed by compression molding. The content of CNC and the melt blending time were changed. The physical and thermal properties of the PLA/CNC nanocomposites were measured by izod impact tester, DSC and DMA. The PLA/CNC nanocomposites showed the highest impact strength at CNC 1 phr and the highest storage modulus at CNC 3 phr. |
