Research Article
Effect of the Concentration of SrAl2O4: Eu2+and Dy3+ (SAO) on Characteristics and Properties of Environment-Friendly Long-Persistent Luminescence Composites from Polylactic Acid and SAO
Figure 5
SEM images of fractures for (a) pure PLA, (b) 5 wt% SAO/PLA, (c) 10 wt% SAO/PLA, (d) 15 wt% SAO/PLA, and (e) 20 wt% SAO/PLA.
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