Wheat Straw Fibrous Material Reinforced Green Composite Materials Via Ficus vasta and Abyssinica Glue Bio-Resin for Acoustic Application

Alhayat Getu Temesgen; Omprakash Sahu

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Research Articles

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Volume 2 Issue 1 (2026): In Progress

How to Cite

Temesgen, A. G., & Sahu, O. (2025). Wheat Straw Fibrous Material Reinforced Green Composite Materials Via Ficus vasta and Abyssinica Glue Bio-Resin for Acoustic Application. Climate-Adaptive Materials Engineering, 2(1), 1-12. https://journals.explorerpress.com/index.php/came/article/view/62

Authors

Alhayat Getu TEMESGEN*

Wollo University, Kombolcha Institute of Technology (KIOT), Kombolcha, Ethiopia

Omprakash Sahu

UIE Chandigarh University, Mohali, Punjab, India

Abstract

Noise, defined as unwanted or disturbing sound that interferes with normal hearing or environmental comfort, is increasingly recognized as a critical environmental stressor in densely populated urban areas, highlighting the need for sustainable materials for acoustic attenuation. This study explores a green composite fabricated from agricultural waste wheat-straw fibers reinforced with a lab-synthesized Euphorbia abyssinica (Abyssinica) glue bio-resin, aiming to provide an eco-friendly alternative to conventional sound-absorbing materials. The sound absorption coefficient (α) of the composites was evaluated using a custom impedance tube across the frequency range of 0–6000 Hz. The natural-fiber composites exhibited low density, favorable mechanical strength, and reduced thermal-emission risk, while their porous microstructure promoted effective sound dissipation. Specimens with a thickness of 6 mm achieved an (Α) of approximately 0.48 at 5500 Hz, whereas 8 mm specimens demonstrated superior acoustic performance, with (Α) values ranging from 0.53 to 0.71 between 3800 and 5400 Hz. Further increases in thickness beyond 8 mm did not yield significant improvements at higher frequencies. These findings indicate that agro-waste-based composites can provide competitive acoustic performance in the 1–5.5 kHz range, underscoring their potential as sustainable structural acoustic materials for next-generation noise-control applications.

Keywords:

Abyssinica glue; Composite; Acoustic material; Sound transmission loss; Noise control

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