Study on Preparation and Structural Properties of High Toughness Polylactic Acid

Different mass ratio of polylactic acid (PLA)/maleic anhydride grafted styrene-ethylene-butadiene-styrene (SEBS-g-MAH) were prepared by melt blending and characterized by means of ATR-FTIR, SEM and mechanical properties tests. The results of investigation demonstrate: when the thermoplastic elastomer SEBS-g-MAH was added into the PLA, the two phases have certain compatibility. When adding suitable amount of SEBS-g-MAH, the toughness of the blend was remarkably improved.