Due to this problem, and abundance of natural fibres, several researchers have initiated to explore the potential of natural fibres [5 – 8]. Ersoy and Kucuk [9] have investigated the potential of tea leaf fibres for sound absorption application. Here, the comparison has been done for three different configuration of tea-leaf fibre with and without backing provided by a single layer of woven textile cloth. The potential of rice-wood straw also has been investigated [10]. It was found that rice-wood straw capable to absorb sound with higher absorption coefficient compared to any other wood-based materials. Yang et.al [11] also has investigated the sound absorption performance using recycled tyre particle and rice straw. The results show water proof, flexibility and flexural properties of thecomposite are superior to those of wood particleboard.
This paper investigates the viability of composites from coconut coir added with recycled tube tyre particles for sound absorption material. The effect of adding recycled rubber particles and the influence of polyurethane are investigated as the potential replacement of synthetic and mineral fibres.