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. 2023 Oct 10;10(5):1110–1121. doi: 10.1089/3dp.2021.0216

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Copyright 2023, Mary Ann Liebert, Inc., publishers

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FIG. 5. — The effect of Soxhlet extraction detoxification treatment on the mechanical properties of 3D printed materials, including (A) elastic modulus, (B) yield strength, (C) resilience, and (D) toughness. Three samples were tested for results A–D. The effect is material type dependent. After the Soxhlet extraction, RGD showed a reduction in elastic modulus, yield strength, resilience, and a slight increase in toughness. HYB showed a small reduction in all parameters. FLX showed an increase in all parameters. However, only the changes with RGD are statistically significant (marked with asterisks). The changes after treatments (unmarked) are nonsignificant. (E) SEM images of RGD and FLX polymer surface before (Untreated) and after Soxhlet treatment (Soxhlet). The white arrow in the RGD Soxhlet denotes microfractures. FLX Soxhlet did not show any microdefects after Soxhlet treatment. Scale bars: 10 μm.