Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Comparison of sound absorption coefficients of two fine materials according to ASTM E1050-2012
Submission Author:
Fernando Jun Hattori Terashima , PR
Co-Authors:
Nelson Legat Filho, Philippe Dea Cirino, Key Fonseca de Lima, Nilson Barbieri, Fernando Jun Hattori Terashima
Presenter: Fernando Jun Hattori Terashima
doi://10.26678/ABCM.COBEM2017.COB17-2108
Abstract
Noise is an ordinary problem in daily life of people and can be harmful to human health. Simultaneously, there is currently a need for using materials and developing products that do not harm the environment. Materials from natural origin that are normally discarded or underutilized such as fiber from coconut husk, fiber from sisal, fiber from banana tree leaf and sugar cane bagasse. In this work was realized a preliminary study of sound absorption coefficient of samples of fiber from coconut husk (FC) and samples of polyurethane (PU). The experiments comply with ASTM E1050-2012. The results show that sample of polyurethane, despite of having closed pores, have better sound absorption coefficient than sample of fiber from coconut husk in high frequencies.
Keywords
noise, sound absorption coefficient, fiber from coconut husk, Polyurethane, ASTM E1050-2012
