Fig. 6

Enlarged photograph of cuboidal specimens with chunk type, 90 min after extrusion: (a) PLA, (b) ABS, (c) TPU. 180 min after extrusion: (d) PLA, (e) ABS, (f) TPU.

Enlarged photograph of cuboidal specimens with chunk type, 90 min after extrusion: (a) PLA, (b) ABS, (c) TPU. 180 min after extrusion: (d) PLA, (e) ABS, (f) TPU.