Acoustic Absorption in 3D-Printed PLA Biocomposite Models: Influence of Grid, Trihexagonal, and Gyroid Infills and Biomass Reinforcement.

ACS Appl Eng Mater · 2026 · PMC13435868 · PMID 42553787

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a clear trendno p-value reported

Overall, the comparison shows a clear trend: neat PLA has the highest crystallinity, PLA with cork shows an intermediate structure with reduced but still detectable crystallinity, and PLA with coffee is predominantly amorphous.

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