| 초록 |
As interest and demand in the environment have been increased, study on the development of biomass-induced materials has been actively conducted to replace petroleum-based polymer. Polylactic acid (PLA) is well known for one of the most environment-friendly polymers. Recently, the PLA has been received attention to be used as a filament for 3D printer with many advantage such as and strong for crack and shrinkage. However, the PLA has low impact strength and slow crystallization rate. To improve the impact strength and crystallization rate, poly(butylene-adipate-co-terephthalate) and talc, used as impact modifier and nucleating agent respectively, were blended into the PLA according to various content in the twin screw extruder. Crystallization, phase morphology, and mechanical properties of the blend were investigated. Consequently, we could obtain that the introduction of impact modifier and nucleating agent results in the improvement of impact strength and crystallization of PLA. |
