Development of Acoustic Absorption Composite with Application of Coir and Viscose

Abstract

In the current scenario the industry looking for good quality products at low cost as well as recyclable ones. The non-woven products, especially reclaimed nonwoven manufacturing cost is very low when compared to other fabric manufacturing cost and it can be recyclable & attractive too. The sound absorption property is very essential in recent years. So it is very advisable to manufacture the sound absorption material with the help of non-woven fabric. This study speaks about the improvement in sound absorption characteristics of the non-woven composite. To improve the acoustic property of the composite the natural fiber coir has been blended with recycled viscose fiber in six different ratios using a needle-punching technique. The six different (in %) blend ratios of coir and reclaimed viscose is 70:30; 60:40; 50:50: 40; 60: 30:70& 20:80.The composite has been introduced at a minimum of 200 grams so that adequate acoustic property is achievable. The composites are examined with GSM, Abrasion Test, Moisture test, and Acoustic coefficient. The GSM of the composite increases, when the viscose ratio increases in the sample. The abrasion-resistant decreases when the viscose increases. The moisture regains increases when the viscose content increases in the composite. The values of the sound absorption coefficient are high in sample 6 (Coir: reclaimed viscose, 20:80) when compared to other samples, it reflects that the reclaimed viscose has higher acoustic property than coir.