Fig. 1

Mechanical properties of the composites with different PLA ratios. (A) SEM scanning of the outer surfaces and sections of different materials. Magnification: ×2000. (B) Flexural resistance of the materials. Significant to PLA: ^**P < 0.01, ^***P < 0.001. Significant to others: ^##P < 0.01, ^###P < 0.001. (C) & (D) Vickers hardness of the materials. Significant to PLA: ^*P < 0.05, ^***P < 0.001. Significant to others: ^##P < 0.01.