Abstract
Poly(lactic acid)/poly(butylene adipate-co-terephthalate) (PLA/PBAT) composites modified with different filler particles (lignin, CaCO3, wollastonite, and talc) were prepared by one-step melt blending and injection molding (referred to as PPL, PPC, PPW, and PPT, respectively). Scanning electron microscopy showed that the filler particles promoted compatibility between PLA and PBAT in the composites. Among them, the PPC composites had fewer defects in the cross-section, and the compatibility between PLA and PBAT was improved, resulting in the best mechanical properties. Thermal analysis revealed that except for talc, the filler particles could improve the thermal stability of PLA/PBAT composites and increase the crystallinity of the composites.
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