Ceramic fiber blanket is an important material in the industrial field. It has been widely used in many high-tech fields. In fact, the ceramic fiber blanket also has the characteristics of sound absorption. The ceramic fiber blanket manufacturer gave us a detailed introduction.
Ceramic fiber blankets are porous sound absorbing materials with good sound absorption properties. The reason why ceramic fiber blankets can absorb sound is not because of the rough surface, but because of the large number of tiny pores and pores that communicate inside and outside.
When sound waves are incident on the ceramic fiber blanket, sound waves can enter the interior of the material along the pores, causing vibration of air molecules in the gap.
Due to the viscous resistance of the air and the friction between the air molecules and the pore walls, the acoustic energy is converted into heat energy and lost.
When the ceramic fiber blanket is used as a sound absorbing material, an air layer or a surface is attached to the decorative material behind it.
In the range of air layer thickness of 100-150mm, the thicker the air layer, the higher the sound absorption rate of the middle and low range, such as air thickening to 300mm, the effective sound absorption range is extended to 100Hz.
The sound absorption characteristics of ceramic fiber blankets are not only related to thickness and bulk density, but also related to factors such as cover material and structural structure.
In the construction application, it is also necessary to take into consideration various aspects such as cost, beauty, fire prevention, moisture resistance, dust, and aging resistance.