TY - JOUR AU - del Rey, R. AU - Alba, J. AU - Ramis, J. AU - Sanchís, V. J. PY - 2011/12/30 Y2 - 2024/03/28 TI - New absorbent acoustic materials from plastic bottle remnants JF - Materiales de Construcción JA - Mater. constr. VL - 61 IS - 304 SE - Research Articles DO - 10.3989/mc.2011.59610 UR - https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/651 SP - 547-558 AB - In the building acoustics field usually fibrous materials are used as sound absorbing materials. Nowadays polyester fiber is one of the most used but the pure chip of polyester has a problem. Polyester is obtained of petroleum and its price was increasing last years. This paper, presents an alternative polyester wool which obtained by PET treatment (recycle of plastic bottle’s). Absorption coefficient values at normal incidence measured in reverberation chamber were compared (new wool obtained by PET method and materials obtained from pure chip of polyester).Furthermore, this paper propound a empiric model that describe the acoustic performance of this new wool. The results have been good. The pure fiber has been replaced by recycle fiber in its manufacture process. ER -