Morphological and acoustical characterization of UV‑irradiated foam composites from cooking oil and wood fake
Polymer foam composites for sound absorption with eco-friendly attributes have gained signifcant attention in sustainable materials research. This study investigates the impact of ultraviolet (UV) irradiation on the morphological, mechanical, and acoustical properties of bio-epoxy (BE) and synthetic...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
2025
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/12709/1/J19586_0ebe92f8fa023b82b1cd4cbaf051b95d.pdf http://eprints.uthm.edu.my/12709/ https://doi.org/10.1007/s10965-025-04307-1 |
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| Summary: | Polymer foam composites for sound absorption with eco-friendly attributes have gained signifcant attention in sustainable materials research. This study investigates the impact of ultraviolet (UV) irradiation on the morphological, mechanical, and acoustical properties of bio-epoxy (BE) and synthetic epoxy (SE) foam composites, incorporating wood fakes as fllers at varying loadings (0–20 wt%). BE, derived from waste cooking oil, demonstrated superior resilience to UV exposure compared to SE, maintaining better pore structure, mechanical stability, and sound absorption performance. The results show that after 6000 h of UV exposure, BE composites retained 12–18% higher sound absorption coefcient (α=0.62–0.78) than SE composites (α=0.50–0.66) at 3000 Hz after 6000 h of UV exposure, demonstrating superior UV resilience. At 6000 Hz, SE outperformed BE (α=0.45 vs. 0.35) as a result of structural degradation in BE at higher frequencies, attributed to the natural stabilizing properties of bio-based additives. This study proves that BE foam composites ofer improved durability and acoustic performance under prolonged UV exposure, positioning them as promising materials for sustainable acoustics applications. |
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