Multifaceted analysis of cocos nucifera fibres investigating physical chemical mechanical thermal and acoustic properties

Abstract

Pollution caused by the discharge of human-generated waste into the newlineair, land, water, and oceans, threatens human and planetary health. Noise newlinepollution, resulting from human activities like automobiles, industrialization, and newlineconstruction, impacts 10% of the global population with harmful sound levels newlinecausing hearing loss. Noise pollution has been regulated by the organizations such newlineas WHO, OSHA, and CPCB, which have set limits on acceptable noise levels. newlineEffective noise control includes the use of sound-absorbing materials and noise newlinebarriers. Acoustic sound absorption panels often consist of porous synthetic newlinematerials made from non-biodegradable materials like plastics and foams, which newlinecontribute to environmental pollution. The production and the disposal of newlinenon-biodegradable materials can have significant negative impacts on the newlineenvironment. Consequently, numerous researchers have been investigating the newlineuse of natural fibres for sound absorption and control. These materials are an newlineappropriate replacement to compensate the soaring demands of synthetic materials newlineand they result in less CO2 emission. newlineThere have been significant researches on natural fibres and biowastes newlineused in sound absorption materials. Some of the notable fibres are banana fibre, newlinekenaf, coconut coir, sugarcane bagasse, rice straw, hemp, wood-based fibres, tea newlineleaf fibres, PALF, palm fibre, and other agricultural wastes which are being newlineinvestigated for their potential in creating sound-absorbing materials, leveraging newlinetheir natural fibrous and porous structures. newline