Development and investigations of bio fiber based hybrid composite for sound proofing applications

Abstract

Natural fibre is a well-known material that is abundant in the world and environmentally friendly. It is combined with other materials to enhance the mechanical, acoustical, and physiological properties. Additionally, the strength of the composite is increased by combining it with other materials, resulting in a hybrid composite. In this work, Natural Fibre Reinforced Hybrid Composite (NFRHC) is taken for the analysis, particularly to study the acoustical property, by including the particulate tea fibre. This work possesses three phases of work are involved: experimental, image analysis, and numerical modelling. The composite material is prepared with the combination of 60% epoxy resin, 10% glass fibre as a constant proportionate, wherein, by varying the tea particulate fibre along with pineapple long fibre to occupy the remaining proportionate of 30% by weight. The specimen is prepared using compression moulding process wherein, delivers superior surface finish along with significantly reduced wastage. Additionally, mercerization (alkaline chemical pre-treatment) is used to remove foreign substrates such as hemicellulose, waxes, lignin, pectin, and ash content from the cellulosic fibre wall, which interferes with the fibre s bonding to the matrix. In the first module, five different compositions of composite material specimens are being subjected to acoustical testing. The sequential arrangement while preparing the specimen is glass fibre, pineapple, and particulate tea fibre correspondingly, thereby to provide the identity of symmetry along with the outer layers as glass fibre to act as an insulating layer to provide the conducive way for the electrical application. newline