Abstract
Coir fibre is extracted from the husk of coconut and is used in products such as floor mats, door mats, brushes and mattresses and in many applications. Here coir fibres are used to make particle boards of densities 300, 400 and 500 kg/m3 using UF resin to determine its efficiency for interior applications like acoustic and thermal properties and also tested for Indian standard 3129. Noise Reduction Coefficient (NRC) of all the boards decreases with an increase in density. Maximum sound absorption coefficient for all three densities was found in the frequency range of 2500 to 30,000 Hz. Among three densities, 300 kg/m3 board shows the maximum absorption coefficient at frequency 3000 Hz. The thermal conductivity results of all three densities boards increase with an increase in density. Modulus of Rupture for all three densities were meeting the requirement of standard. Results reveal that particle board manufactured from coir fibre can be used for acoustic and thermal insulation applications.
Highlights
From ancient time, natural fiber material is used for day to day applications and in the recent inventions, it is noticed that fibre composite materials can be used in building & furniture applications [1]
There will be more space available for the water to move in a lower density particle board due to the low compaction ratio but water absorption results show that all samples after testing were in intact position and no any sign of disintegration or splitting at the edges
Experiment illustrates that particle board made from coir fiber particles can be used in acoustic application as sound absorbent material
Summary
Natural fiber material is used for day to day applications and in the recent inventions, it is noticed that fibre composite materials can be used in building & furniture applications [1]. Due to the light weight, high strength to weight ratio, corrosion resistance and other advantages, natural fibre-based composites are becoming important composite materials in construction field in case of synthetic fibre-based composites, despite the usefulness in service, these are difficult to be recycled after designed service life. Flax board has less hygroscopicity than solid timber and wooden chipboard
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