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(a) Schematic representation for the preparation of PMrG/PLA composite; (b) digital photographs of PMrG-3/PLA; (c) SEM images of PMrG-3/PLA; and (d) stress-strain curves of PLA, rGO/PLA composite, PM/PLA composite, and PMrG-3/PLA composite (the mass fractions of the additives in the composites are all 10%).
