Development and Characterization of Natural-Fiber-Based Composite Panels

Area of Science:

• Materials Science
• Sustainable Engineering
• Acoustics

Background:

• Growing demand for sustainable materials in construction and transportation.
• Renewed interest in natural fibers for composite applications.
• Oil palm fibers (OPF) as a potential sustainable resource.

Purpose of the Study:

• To develop and characterize composite panels using oil palm fibers (OPF).
• To evaluate acoustic, mechanical, and water susceptibility properties.
• To assess the potential of OPF-based composites for various applications.

Main Methods:

• Fabrication of composite panels with OPF, acrylic resin binder, fly ash, and metal oxides.
• Acoustic absorption coefficient and noise reduction coefficient measurements.
• Quasistatic indentation, drop-weight, and water immersion tests (including warm water analysis).

Main Results:

• OPF incorporation significantly improved acoustic absorption in the 1000-3000 Hz range.
• Noise reduction coefficient values increased by over 50% compared to refractory boards.
• Composite panels demonstrated excellent performance in mechanical tests.
• Minor changes observed after standard water immersion, but severe degradation (>65% flexural strength loss) after 56 days in warm, caustic water.

Conclusions:

• OPF-based composite panels offer superior acoustic and mechanical properties for sustainable applications.
• The material shows good performance under normal conditions but is susceptible to degradation in harsh warm water environments.
• Further research is needed to enhance durability for specific applications exposed to challenging conditions.