Effect of physical and subsequent processing parameters of glass fiber felts on sound insulation

AbstractThe aim of this study is to explore the effect of physical parameters (fiber diameter, thickness, and resin content) and subsequent processing parameters (heat treatment and rolling compaction) on sound insulation of glass fiber felts. The results show an inversely proportional relationship between fiber diameter and sound insulation. The decrease of fiber diameter results in improvement of sound transmission loss (STL). Alternatively, the thickness of glass fiber felts increase leading to the increase of corresponding sound insulation. With the increase of resin content, STLs of glass fiber felts do not increase monotonically. The STLs of glass fiber felt are also improved with the increase of heat treatment temperature. Compressing can reduce the STL due to the reduction of thickness.