Recyclable flame retardant nonwoven for sound absorption; RUBAR

A flame retardant nonwoven fabric for sound absorption, using para-aramid fibre and polyester fibre as a substitute for conventional materials (such as glass wool, flame retardant foam and flame retardant polyester fibre) was investigated. A combination of nonwoven fabric and paper was studied, and the resulting sound absorption qualities and sound permeation loss were compared. By attaching para-aramid paper with less than 30 cc/sec/cm2 of permeability to nonwoven fabric, the sound absorption performance at over 2000 Hz was better than that of glass wool. We named this material “Flame Retardant Nonwoven Fabric for Sound Absorption” RUBA R . C 2005 Springer Science + Business Media, Inc