The sound absorption coefficient of the sound absorbing material is related to what factors
If you want to reduce the low-frequency noise or reduce the low-frequency reverberation time, you should use low-frequency sound absorption coefficient of higher materials
① first sound-absorbing performance should meet the requirements, if you need to reduce the high-frequency noise or reduce the high frequency reverberation time, you should use high-frequency high sound absorption coefficient of the material
② sound absorption coefficient from the environment and time, the material sound-absorbing performance should be long-term stable and reliable ③ waterproof, moisture, moth, anti-corrosion, mildew, anti-bacterial, which is used in humid environment is very important Such as swimming pools, underground works and wet areas ④ fire performance is good, should have flame retardant, flame retardant or non-combustible performance On the theater and subway projects and other public places should be used as far as possible non-combustible materials ⑤ sound-absorbing material to have a certain degree of mechanical strength, so that in the handling, installation and use of the process, not easy to damage, durable, not aging ⑥ material processing performance is good, light weight, easy processing and installation and maintenance exchange, for large thin roof structures such as large span stadium, the sound of the weight of the ceiling is a crucial constraint ⑦ sound-absorbing materials and their products in the installation and use of the process will not be scattered dust, volatile toxic odor, radiation harmful substances, damage to human health ⑧ sound-absorbing material is generally installed in the indoor surface, it is an important part of interior design, especially the theater, multi-function hall, conference room, radio, television and film recording room and auditing room sound quality design, sound absorption material should have Decorative effect
