Preparation of nano-silica modified sound-absorbing knitted fabric and its properties
In order to investigate the effect of structure and nano-silica coating concentration on the performance of sound-absorbing knitted fabrics,90％cotton/10％acrylic blended yarn is used to prepare interlock and Puntodi Roma fabrics followed by coating with nano-silica agents of 1.0％,1.5％,and 2.0％respectively.The basic mechanical properties and sound absorption properties of fabric samples aretested.The results show that nano-silica coating can significantly improve the acoustic performance of knitted fabrics in the high frequency(above 2000 Hz).The acoustic performance is positively correlated with the concentration of nano-silica coating and the surface density of the interlock fabric,the nano-silica coating does not affect the tear strength of the fabric but reduces the breathability of the fabric.
knitted fabricinterlock stitchpuntodi roma stitchsound absorptionnano-silicacoating finish
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