| 초록 |
Poly (L-lactic acid) (PLLA) is now one of the most commercially available biodegradable polymers showing relatively good mechanical properties and biocompatibility, but its brittleness and low heat deflection temperature give the limitation of application field other than single disposal packaging items. It is well known that the blending is cost effective technology to improve the deficient properties while maintaining desired properties of major polymers by mixing second polymers. In this study, PLLA was blended with ductile polymer, Poly (butylene succinate) (PBS) to improve the toughness (ductility) of PLLA, and the properties of PLLA/PBS binary blends were compared with that of PLLA/PBS multilayer film structures manufactured by co-extrusion process. The thermal, thermo-mechanical and mechanical and morphological properties were investigated and compared two different processing techniques |
