Graphene-Reinforced Biodegradable Resin Composites for Stereolithographic 3D Printing of Bone Structure Scaffolds

Figure 5

Optical microscopy images of (a) Z direction parallel stripes, (b) Y direction printing specimens, (c, d) direct casting reference specimens, (e) X-0.02 specimen, and (f) X-0.05 specimen; SEM images of the tensile fractured surfaces (g) X-0.02 specimen, (h) X-0.05 specimen, (i) direct casting reference specimen, (j) bubble in X-0.02 specimen, (k) bubble in X-0.05 specimen, and (l) bubble in direct casting reference specimen (d represents diameter of the bubble).

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