Morphological and acoustical characterization of UV‑irradiated foam composites from cooking oil and wood fake

M. Rus, Anika Zafah and Abd Wahab, Hanani and Saif, Yazid and Marsi, Noraini and Zaliran, M. Taufq and Alamshah, M. Hafzh and Ita Mariza, Ita Mariza and M. Rus, Shaiqah and Al‑Alimi, Sami and Zhou, Wenbin (2025) Morphological and acoustical characterization of UV‑irradiated foam composites from cooking oil and wood fake. Journal of Polymer Research. pp. 1-20.

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Abstract

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.

Item Type: Article
Uncontrolled Keywords: Waste cooking oil · Bio-epoxy · Synthetic epoxy · Wood fakes · Foam composites
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Mechanical and Manufacturing Engineering > FKMP
Depositing User: Mr. Mohamad Zulkhibri Rahmad
Date Deposited: 18 Aug 2025 07:43
Last Modified: 18 Aug 2025 07:44
URI: http://eprints.uthm.edu.my/id/eprint/13059

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