The sound absorption coefficient refers to the ability of a material to absorb sound, and it is a crucial parameter in acoustic materials, which is often used to evaluate how well a material absorbs sound waves at different frequencies, ranging from 0 to 1. Glass wool as a kind of thermal insulation, but also can absorb sound insulation multi-functional material, its thermal insulation performance is very excellent, then the acoustic performance of glass wool and what about?

Glass wool is a porous material that contains a large number of tiny voids. When sound waves travel to the glass wool surface, they enter the material and interact with air molecules in the voids. Due to the viscosity and heat conduction effects of air molecules, sound waves are obstructed during propagation, resulting in energy loss. This energy loss is the absorption of sound by glass wool.

Generally speaking, the sound absorption coefficient of glass wool is above 0.8, which means that glass wool can effectively absorb most of the sound, reduce the reflection and transmission of sound, and thus improve the acoustic environment inside the building. The high sound absorption coefficient of glass wool makes it an ideal sound insulation material, which is widely used in building sound insulation, air conditioning pipes and ventilation systems, industrial equipment sound insulation and other Spaces requiring good acoustic effects.

The sound absorption coefficient of glass wool is affected by a number of factors, including material density, thickness, surface treatment and frequency. Higher density and thickness usually mean a higher sound absorption coefficient, and good surface treatment can further improve the sound absorption effect. In addition, the sound absorption effect of glass wool at different frequencies will also be different, so these factors need to be considered comprehensively in practical applications.

Glass wool is an excellent sound insulation material, and its high sound absorption coefficient provides good acoustic protection for buildings, which plays an important role in many fields.